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Net loss on Airgas transaction

^[1]

298.2

48.5

96.0

Customer bankruptcy

(6.4)

22.2

Pension settlement

11.5

10.7

Other income, net

37.2

38.7

23.0

Equity affiliates' income

1,622.2

1,389.0

846.3

154.3

126.9

112.2

Interest expense

115.5

121.9

Income from Continuing Operations before Taxes

1,661.0

1,394.0

836.6

Income tax provision

408.4

339.5

185.3

Income from Continuing Operations

1,252.6

1,054.5

651.3

Income (Loss) from Discontinued Operations, net of tax

8.9

(8.6)

Less: Net Income Attributable to Noncontrolling Interests

1,261.5

1,054.5

642.7

37.3

25.4

11.4

Net income attributable to Air Products

1,224.2

1,029.1

631.3

Net Income Attributable to Air Products

Income from continuing operations

1,215.3

1,029.1

639.9

Income (Loss) from discontinued operations

8.9

(8.6)

Net income attributable to Air Products

$ 1,224.2

$ 1,029.1

$ 631.3

Weighted Average of Common Shares Outstanding (in millions)

213.0

212.2

209.9

Weighted Average of Common Shares Outstanding Assuming Dilution (in millions)

217.6

217.1

213.5

Basic Earnings per Common Share Attributable to Air Products

Income from continuing operations

$ 5.71

$ 4.85

$ 3.05

Income (Loss) from discontinued operations

0.04

(0.04)

Net Income Attributable to Air Products

5.75

4.85

3.01

Diluted Earnings per Common Share Attributable to Air Products

Income from continuing operations

5.59

4.74

3.00

Income (Loss) from discontinued operations

0.04

(0.04)

Net Income Attributable to Air Products

$ 5.63

$ 4.74

$ 2.96

[1]	Information about how this charge related to the businesses at the segment level is discussed in Note 5, Global Cost Reduction Plan.

Consolidated Balance Sheets - USD ($)
$ in Millions

Sep. 30, 2011

Sep. 30, 2010

Current Assets

Cash and cash items

$ 422.5

$ 374.3

Trade receivables, net

1,575.0

1,481.9

Inventories

681.4

571.6

Contracts in progress, less progress billings

146.7

163.6

Prepaid expenses

77.9

70.3

Other receivables and current assets

286.3

372.1

Total Current Assets

3,189.8

3,033.8

Investment in net assets of and advances to equity affiliates

1,011.6

912.8

Plant and equipment, net

^[1]

7,412.0

7,051.3

Goodwill

892.4

914.6

Intangible assets, net

260.7

285.7

Noncurrent capital lease receivables

1,042.8

770.4

Other noncurrent assets

481.4

537.3

Total Noncurrent Assets

11,100.9

10,472.1

Total Assets

14,290.7

13,505.9

Current Liabilities

Payables and accrued liabilities

1,641.8

1,702.0

Accrued income taxes

65.5

73.6

Short-term borrowings

562.5

286.0

Current portion of long-term debt

72.2

182.5

Total Current Liabilities

2,342.0

2,244.1

Long-term debt

3,927.5

3,659.8

Other noncurrent liabilities

1,512.4

1,569.3

Deferred income taxes

570.1

335.1

Total Noncurrent Liabilities

6,010.0

5,564.2

Total Liabilities

8,352.0

7,808.3

Commitments and Contingencies-See Note 16

Air Products Shareholders' Equity

Common stock (par value $1 per share; issued 2011 and 2010-249,455,584 shares)

249.4

Capital in excess of par value

805.6

802.2

Retained earnings

8,599.5

7,852.2

Accumulated other comprehensive loss

(1,253.4)

(1,159.4)

Treasury stock, at cost (2011-39,270,328 shares; 2010-35,652,719 shares)

(2,605.3)

(2,197.5)

Total Air Products Shareholders' Equity

5,795.8

5,546.9

Noncontrolling Interests

142.9

150.7

Total Equity

5,938.7

5,697.6

Total Liabilities and Equity

$ 14,290.7

$ 13,505.9

[1]	Long lived assets include plant and equipment, net.

Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2011	Sep. 30, 2010
Consolidated Balance Sheets [Abstract]
Common stock, par value	$ 1	$ 1
Common stock, issued shares	249,455,584	249,455,584
Treasury stock, shares	39,270,328	35,652,719

Consolidated Statements Of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Operating Activities
Net income	$ 1,261.5	$ 1,054.5	$ 642.7
Less: Net income attributable to noncontrolling interests	37.3	25.4	11.4
Net income attributable to Air Products	1,224.2	1,029.1	631.3
Adjustments to reconcile income to cash provided by operating activities:
Depreciation and amortization	873.9	863.4	840.3
Impairment of assets of continuing operations		3.8	69.2
Impairment of assets of discontinued operations			49.5
Deferred income taxes	185.7	96.2	(52.3)
Undistributed earnings of unconsolidated affiliates	(47.5)	(50.6)	(58.0)
(Gain) loss on sale of assets and investments	(12.8)	(14.8)	3.6
Share-based compensation	44.8	48.6	60.4
Noncurrent capital lease receivables	(272.5)	(85.6)	(186.7)
Net loss on Airgas transaction	48.5	96.0
Payment of acquisition-related costs	(156.2)	(12.0)
Customer bankruptcy			22.2
Other adjustments	69.7	(9.0)	(3.4)
Working capital changes that provided (used) cash, excluding effects of acquisitions and divestitures:
Trade receivables	(103.5)	(142.5)	159.0
Inventories	(101.8)	(65.9)	(17.7)
Contracts in progress, less progress billings	16.7	(33.9)	12.5
Other receivables	14.2	41.5	(11.9)
Payables and accrued liabilities	(32.4)	(293.6)	(282.8)
Other working capital	2.2	51.7	94.2
Cash Provided by Operating Activities	1,753.2	1,522.4	1,329.4
Investing Activities
Additions to plant and equipment	(1,351.7)	(1,030.9)	(1,179.1)
Acquisitions, less cash acquired	(10.8)	(37.2)	(32.7)
Investment in and advances to unconsolidated affiliates	(45.8)	(4.8)	(24.5)
Investment in Airgas stock		(69.6)
Proceeds from sale of Airgas stock	94.7
Proceeds from sale of assets and investments	81.6	52.4	57.9
Proceeds from sale of discontinued operations			51.0
Change in restricted cash	19.8	33.6	87.0
Cash Used for Investing Activities	(1,212.2)	(1,056.5)	(1,040.4)
Financing Activities
Long-term debt proceeds	409.8	226.2	610.5
Payments on long-term debt	(187.1)	(436.4)	(82.9)
Net increase (decrease) in commercial paper and short-term borrowings	234.3	(74.6)	(122.7)
Dividends paid to shareholders	(456.7)	(398.7)	(373.3)
Purchase of treasury stock	(649.2)
Proceeds from stock option exercises	148.2	88.1	54.4
Excess tax benefit from share-based compensation	47.6	23.9	15.5
Other financing activities	(31.4)	(8.2)	(6.5)
Cash (Used for) Provided by Financing Activities	(484.5)	(579.7)	95.0
Effect of Exchange Rate Changes on Cash	(8.3)	(0.1)	0.7
Increase (Decrease) in Cash and Cash Items	48.2	(113.9)	384.7
Cash and Cash Items-Beginning of Year	374.3	488.2	103.5
Cash and Cash Items-End of Year	$ 422.5	374.3	$ 488.2
Significant noncash transactions
Short-term borrowings associated with SAGA acquisition		60.9
Noncurrent liability related to the purchase of shares from noncontrolling interests		$ 42.0

Consolidated Statements Of Equity - USD ($)
$ in Millions

Common Stock [Member]

^[1]

Capital In Excess Of Par [Member]

Retained Earnings [Member]

Accumulated Other Comprehensive Loss [Member]

Treasury Stock [Member]

Air Product Shareholders' Equity [Member]

Non-Controlling Interests [Member]

Total

Balance (Scenario, Previously Reported [Member]) at Sep. 30, 2008

$ 249.4

$ 811.7

$ 6,990.2

$ (549.3)

$ (2,471.3)

$ 5,030.7

$ 136.2

$ 5,166.9

Balance (Restatement Adjustment [Member])

(8.1)

35.8

27.7

Balance at Sep. 30, 2008

249.4

811.7

6,982.1

(513.5)

(2,471.3)

5,058.4

136.2

5,194.6

Comprehensive Income

Translation adjustments, net of tax

631.3

11.4

642.7

(148.3)

(0.8)

(149.1)

Net gain (loss) on derivatives, net of tax

(4.5)

(0.2)

(4.7)

Unrealized holding gain (loss) on available-for-sale securities, net of tax

2.4

(518.3)

(1.6)

(519.9)

Reclassification adjustments:

Derivatives, net of tax (benefit)

(3.2)

(0.7)

Share-based compensation expense

24.3

Comprehensive Income

(17.0)

8.8

(8.2)

59.3

Issuance of treasury shares for stock option and award plans

(71.9)

118.1

46.2

Tax benefit of stock option and award plans

23.8

Cash dividends

(376.3)

Dividends to noncontrolling interests

(8.9)

Purchase of noncontrolling interests

(0.4)

Contribution from noncontrolling interests

2.4

(2.5)

Balance at Sep. 30, 2009

249.4

822.9

7,234.6

(1,161.8)

(2,353.2)

4,791.9

138.1

4,930.0

Comprehensive Income

Translation adjustments, net of tax

1,029.1

25.4

1,054.5

136.4

2.0

138.4

Net gain (loss) on derivatives, net of tax

(11.6)

Unrealized holding gain (loss) on available-for-sale securities, net of tax

20.2

(201.7)

(0.2)

(201.9)

Reclassification adjustments:

Derivatives, net of tax (benefit)

(0.7)

14.8

Available-for-sale securities, net of tax (benefit)

(10.0)

Share-based compensation expense

55.0

Comprehensive Income

1,031.5

27.2

1,058.7

48.6

Issuance of treasury shares for stock option and award plans

(76.0)

155.7

79.7

Tax benefit of stock option and award plans

35.0

Cash dividends

(408.4)

Dividends to noncontrolling interests

(18.7)

Purchase of noncontrolling interests

(28.3)

(10.8)

(39.1)

Contribution from noncontrolling interests

14.7

(3.1)

0.2

(2.9)

Balance at Sep. 30, 2010

249.4

802.2

7,852.2

(1,159.4)

(2,197.5)

5,546.9

150.7

5,697.6

Comprehensive Income

Translation adjustments, net of tax

1,224.2

37.3

1,261.5

(87.2)

4.4

(82.8)

Net gain (loss) on derivatives, net of tax

0.9

(0.1)

0.8

Unrealized holding gain (loss) on available-for-sale securities, net of tax

(4.6)

(66.6)

Reclassification adjustments:

Derivatives, net of tax (benefit)

0.4

11.5

Available-for-sale securities, net of tax (benefit)

(16.1)

Share-based compensation expense

67.7

Comprehensive Income

1,130.2

41.6

1,171.8

44.8

Purchase of treasury shares

(649.2)

Issuance of treasury shares for stock option and award plans

(98.6)

241.4

142.8

Tax benefit of stock option and award plans

63.7

Cash dividends

(473.8)

Dividends to noncontrolling interests

(31.4)

Purchase of noncontrolling interests

(6.1)

Contribution from noncontrolling interests

1.4

Major Accounting Policies [Abstract]

(0.4)

(3.1)

(3.5)

(19.4)

(22.9)

Balance at Sep. 30, 2011

$ 249.4

$ 805.6

$ 8,599.5

$ (1,253.4)

$ (2,605.3)

$ 5,795.8

$ 142.9

$ 5,938.7

[1]	Refer to Note 17, Capital stock, for a rollforward of shares

Consolidated Statements Of Equity (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009	Sep. 30, 2008
Consolidated Statements Of Equity [Abstract]
Tax effect on defined benefit plans measurement date change				$ 14.0
Tax effect on translation adjustments	$ 9.9	$ 69.5	$ (35.3)
Tax effect on net gain (loss) on derivatives	0.2	(5.5)	(1.8)
Tax effect on unrealized holding gain (loss) on available-for-sale securities	(3.3)	12.1	1.4
Tax effect pension and postretirement benefits	(59.2)	(103.0)	(287.7)
Tax effect on derivative adjustments	3.4	7.0	(0.8)
Tax effect on available-for-sale securities	(9.3)	(5.8)
Tax effect on pension and post retirement benefits reclassified	$ 35.1	$ 29.5	$ 9.8
Dividends per share	$ 2.23	$ 1.92	$ 1.79

Major Accounting Policies

12 Months Ended

Sep. 30, 2011

Major Accounting Policies

1. MAJOR ACCOUNTING POLICIES

Consolidation Principles

The consolidated financial statements include the accounts of Air Products and Chemicals, Inc. and those of its controlled subsidiaries ("we," "our," "us," the "Company," "Air Products," or "registrant"), which are generally majority owned. Intercompany transactions and balances are eliminated in consolidation.

We consolidate all entities that we control. The general condition for control is ownership of a majority of the voting interests of an entity. Control may also exist in arrangements where we are the primary beneficiary of a variable interest entity (VIE). An entity that will have both the power to direct the activities that most significantly impact the economic performance of the VIE and the obligation to absorb the losses or receive the benefits significant to the VIE is considered a primary beneficiary of that entity. We have determined that we are not a primary beneficiary in any material variable interest entity.

Estimates and Assumptions

The preparation of the financial statements in accordance with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Revenue Recognition

Revenue from product sales is recognized as risk and title to the product transfer to the customer (which generally occurs at the time shipment is made), the sales price is fixed or determinable, and collectability is reasonably assured. Sales returns and allowances are not a business practice in the industry.

Revenue from equipment sale contracts is recorded primarily using the percentage-of-completion method. Under this method, revenue from the sale of major equipment, such as liquefied natural gas (LNG) heat exchangers and large air separation units, are recognized primarily based on labor hours incurred to date compared with total estimated labor hours. Changes to total estimated labor hours and anticipated losses, if any, are recognized in the period determined.

Certain contracts associated with facilities that are built to provide product to a specific customer are required to be accounted for as leases. In cases where operating lease treatment is necessary, there is no difference in revenue recognition over the life of the contract as compared to accounting for the contract as product sales. In cases where capital lease treatment is necessary, the timing of revenue and expense recognition is impacted. Revenue and expense are recognized up front for the sale of equipment component of the contract as compared to revenue recognition over the life of the arrangement under contracts not qualifying as capital leases. Additionally, a portion of the revenue representing interest income from the financing component of the lease receivable is reflected as sales over the life of the contract.

If an arrangement involves multiple deliverables, the delivered items are considered separate units of accounting if the items have value on a stand-alone basis. Revenues are allocated to each deliverable based upon relative selling prices derived from company specific evidence.

Amounts billed for shipping and handling fees are classified as sales in the consolidated income statements.

Amounts billed for sales and use taxes, value-added taxes, and certain excise and other specific transactional taxes imposed on revenue-producing transactions are presented on a net basis and excluded from sales in the consolidated income statements. We record a liability until remitted to the respective taxing authority.

Cost of Sales

Cost of sales predominantly represents the cost of tangible products sold. These costs include labor, raw materials, plant engineering, power, depreciation, production supplies and materials packaging costs, and maintenance costs. Costs incurred for shipping and handling are also included in cost of sales.

Depreciation

Depreciation is recorded using the straight-line method, which deducts equal amounts of the cost of each asset from earnings every year over its expected economic useful life. The principal lives for major classes of plant and equipment are summarized in Note 9, Plant and Equipment.

Selling and Administrative

The principal components of selling and administrative expenses are salaries, advertising, and promotional costs.

Postemployment Benefits

We have a severance policy for eligible employees. When termination benefits provided to employees as part of a cost reduction plan, such as that discussed in Note 5, Global Cost Reduction Plan, meet the definition of an ongoing benefit arrangement, a liability is recognized for termination benefits when probable and estimable. These criteria are met when management, with the appropriate level of authority, approves and commits to its plan of action for termination; the plan identifies the employees to be terminated and their related benefits; and the plan is to be completed within one year. During periods of operations where terminations are made on an as-needed basis, absent a detailed committed plan, terminations are accounted for on an individual basis and a liability is recognized when probable and estimable.

Financial Instruments

We address certain financial exposures through a controlled program of risk management that includes the use of derivative financial instruments. Refer to Note 12, Financial Instruments, for further detail on the types and use of derivative instruments that we enter into. The types of derivative financial instruments permitted for such risk management programs are specified in policies set by management.

Major financial institutions are counterparties to all of these derivative contracts. We have established counterparty credit guidelines and only enter into transactions with financial institutions of investment grade or better. Management believes the risk of incurring losses related to credit risk is remote, and any losses would be immaterial to the consolidated financial results, financial condition, or liquidity.

We recognize these derivatives on the balance sheet at fair value. On the date the derivative instrument is entered into, we generally designate the derivative as either (1) a hedge of a forecasted transaction or of the variability of cash flows to be received or paid related to a recognized asset or liability (cash flow hedge), (2) a hedge of a net investment in a foreign operation (net investment hedge), or (3) a hedge of the fair value of a recognized asset or liability or of an unrecognized firm commitment (fair value hedge).

The following details the accounting treatment of our cash flow, fair value, net investment, and non-designated hedges:

•

Changes in the fair value of a derivative that is designated as and meets all the required criteria for a cash flow hedge are recorded in Accumulated Other Comprehensive Income (AOCI) and then recognized in earnings when the hedged items affect earnings.

•

Changes in the fair value of a derivative that is designated as and meets all the required criteria for a fair value hedge, along with the gain or loss on the hedged asset or liability that is attributable to the hedged risk, are recorded in current period earnings.

•

Changes in the fair value of a derivative, foreign currency debt, and qualifying intercompany loans that are related to an outstanding borrowing from a third party that are designated as and meet all the required criteria for a hedge of a net investment are recorded as translation adjustments in AOCI.

•

Changes in the fair value of a derivative that is not designated as a hedge are recorded immediately in earnings.

We formally document the relationships between hedging instruments and hedged items, as well as our risk management objective and strategy for undertaking various hedge transactions. This process includes relating derivatives that are designated as fair value or cash flow hedges to specific assets and liabilities on the balance sheet or to specific firm commitments or forecasted transactions. We also formally assess, at the inception of the hedge and on an ongoing basis, whether derivatives are highly effective in offsetting changes in fair values or cash flows of the hedged item. If it is determined that a derivative is not highly effective as a hedge, or if a derivative ceases to be a highly effective hedge, we will discontinue hedge accounting with respect to that derivative prospectively.

Foreign Currency

Since we do business in many foreign countries, fluctuations in currency exchange rates affect our financial position and results of operations.

In most of our foreign operations, local currency is considered the functional currency. Foreign subsidiaries translate their assets and liabilities into U.S. dollars at current exchange rates in effect at the end of the fiscal period. The gains or losses that result from this process are shown as translation adjustments in AOCI in the equity section of the balance sheet.

The revenue and expense accounts of foreign subsidiaries are translated into U.S. dollars at the average exchange rates that prevailed during the period. Therefore, the U.S. dollar value of these items on the income statement fluctuates from period to period, depending on the value of the dollar against foreign currencies. Some transactions are made in currencies different from an entity's functional currency. Gains and losses from these foreign currency transactions are generally included in earnings as they occur.

Environmental Expenditures

Accruals for environmental loss contingencies are recorded when it is probable that a liability has been incurred and the amount of loss can be reasonably estimated. Remediation costs are capitalized if the costs improve the Company's property as compared with the condition of the property when originally constructed or acquired, or if the costs prevent environmental contamination from future operations. We expense environmental costs related to existing conditions resulting from past or current operations and from which no current or future benefit is discernible. The amounts charged to income from continuing operations related to environmental matters totaled $34.0 in fiscal 2011, $31.6 in 2010, and $52.5 in 2009.

The measurement of environmental liabilities is based on an evaluation of currently available information with respect to each individual site and considers factors such as existing technology, presently enacted laws and regulations, and prior experience in remediation of contaminated sites. An environmental liability related to cleanup of a contaminated site might include, for example, a provision for one or more of the following types of costs: site investigation and testing costs, cleanup costs, costs related to soil and water contamination resulting from tank ruptures, post-remediation monitoring costs, and outside legal fees. These liabilities include costs related to other potentially responsible parties to the extent that we have reason to believe such parties will not fully pay their proportionate share. They do not take into account any claims for recoveries from insurance or other parties and are not discounted.

As assessments and remediation progress at individual sites, the amount of projected cost is reviewed, and the liability is adjusted to reflect additional technical and legal information that becomes available. Management has a well-established process in place to identify and monitor the Company's environmental exposures. An environmental accrual analysis is prepared and maintained that lists all environmental loss contingencies, even where an accrual has not been established. This analysis assists in monitoring the Company's overall environmental exposure and serves as a tool to facilitate ongoing communication among the Company's technical experts, environmental managers, environmental lawyers, and financial management to ensure that required accruals are recorded and potential exposures disclosed.

Given inherent uncertainties in evaluating environmental exposures, actual costs to be incurred at identified sites in future periods may vary from the estimates. Refer to Note 16, Commitments and Contingencies, for additional information on the Company's environmental loss contingencies.

The accruals for environmental liabilities are reflected in the consolidated balance sheets, primarily as part of other noncurrent liabilities.

Litigation

In the normal course of business, we are involved in legal proceedings. We accrue a liability for such matters when it is probable that a liability has been incurred and the amount can be reasonably estimated. When only a range of possible loss can be established, the most probable amount in the range is accrued. If no amount within this range is a better estimate than any other amount within the range, the minimum amount in the range is accrued. The accrual for a litigation loss contingency includes estimates of potential damages and other directly related costs expected to be incurred. Refer to Note 16, Commitments and Contingencies, for additional information on our current legal proceedings.

Share-Based Compensation

We have various share-based compensation programs, which include stock options, deferred stock units, and restricted stock. We expense the grant-date fair value of these awards over the vesting period during which employees perform related services. Beginning in fiscal year 2011, we moved from a lattice-based valuation model to a Black Scholes model to value stock option awards. The change in valuation models was not significant to our consolidated financial statements. Refer to Note 18, Share-Based Compensation, for further detail.

Income Taxes

We account for income taxes under the liability method. Under this method, deferred tax assets and liabilities are recognized for the tax effects of temporary differences between the financial reporting and tax bases of assets and liabilities using enacted tax rates. A principal temporary difference results from the excess of tax depreciation over book depreciation because accelerated methods of depreciation and shorter useful lives are used for income tax purposes. The cumulative impact of a change in tax rates or regulations is included in income tax expense in the period that includes the enactment date.

A tax benefit for an uncertain tax position is recognized when it is more likely than not that the position will be sustained upon examination based on its technical merits. This position is measured as the largest amount of tax benefit that is greater than 50% likely of being realized. Interest and penalties related to unrecognized tax benefits are recognized as a component of income tax expense. For additional information regarding our income taxes, refer to Note 21, Income Taxes.

Cash and Cash Items

Cash and cash items include cash, time deposits, and certificates of deposit acquired with an original maturity of three months or less.

Trade Receivables, net

Trade receivables are comprised of amounts owed to us through our operating activities and are presented net of allowances for doubtful accounts. The allowances for doubtful accounts represent estimated uncollectible receivables associated with potential customer defaults on contractual obligations. A provision for customer defaults is made on a general formula basis when it is determined that the risk of some default is probable and estimable but cannot yet be associated with specific customers. The assessment of the likelihood of customer defaults is based on various factors, including the length of time the receivables are past due, historical experience, and existing economic conditions. The allowances also include amounts for certain customers where a risk of default has been specifically identified considering factors such as the financial condition of the customer and customer disputes over contractual terms and conditions. Allowances for doubtful accounts were $98.0 and $99.3 as of fiscal year end 2011 and 2010, respectively. Provisions to the allowances for doubtful accounts charged against income were $23.4, $29.5, and $37.8 in 2011, 2010, and 2009, respectively.

Inventories

Inventories are stated at the lower of cost or market. We write down our inventories for estimated obsolescence or unmarketable inventory based upon assumptions about future demand and market conditions.

We utilize the last-in, first-out (LIFO) method for determining the cost of inventories in the Merchant Gases, Tonnage Gases, and Electronics and Performance Materials segments in the United States. Inventories for these segments outside of the United States are accounted for on the first-in, first-out (FIFO) method, as the LIFO method is not generally permitted in the foreign jurisdictions where these segments operate. The inventories of the Equipment and Energy segment on a worldwide basis, as well as all other inventories, are accounted for on the FIFO basis.

At the business segment level, inventories are recorded at FIFO and the LIFO pool adjustments are not allocated to the business segments.

Equity Investments

The equity method of accounting is used when we exercise significant influence but do not have operating control, generally assumed to be 20%-50% ownership. Under the equity method, original investments are recorded at cost and adjusted by our share of undistributed earnings or losses of these companies. Equity investments are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the investment may not be recoverable.

Plant and Equipment

Plant and equipment is stated at cost less accumulated depreciation. Construction costs, labor, and applicable overhead related to installations are capitalized. Expenditures for additions and improvements that extend the lives or increase the capacity of plant assets are capitalized. The costs of maintenance and repairs of plant and equipment are charged to expense as incurred.

Fully depreciated assets are retained in the gross plant and equipment and accumulated depreciation accounts until they are removed from service. In the case of disposals, assets and related depreciation are removed from the accounts, and the net amounts, less proceeds from disposal, are included in income.

Computer Software

We capitalize costs incurred to purchase or develop software for internal use. Capitalized costs include purchased computer software packages, payments to vendors/consultants for development and implementation or modification to a purchased package to meet our requirements, payroll and related costs for employees directly involved in development, and interest incurred while software is being developed. Capitalized computer software costs are included in the balance sheet classification plant and equipment and depreciated over the estimated useful life of the software, generally a period of three to ten years. The Company's SAP system is being depreciated over a ten-year estimated useful life.

Capitalized Interest

As we build new plant and equipment, we include in the cost of these assets a portion of the interest payments we make during the year. The amount of capitalized interest was $22.7, $14.3, and $21.9 in 2011, 2010, and 2009, respectively.

Impairment of Long-Lived Assets

Long-lived assets are evaluated for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset group may not be recoverable. We assess recoverability by comparing the carrying amount of the asset group to estimated undiscounted future cash flows expected to be generated by the asset group. If an asset group is considered impaired, the impairment loss to be recognized is measured as the amount by which the asset group's carrying amount exceeds its fair value. Long-lived assets to be sold are reported at the lower of carrying amount or fair value less cost to sell.

Government Grants

We receive government grants that primarily relate to research and development projects. Government grants are recognized when there is reasonable assurance that the grant will be received and that we have complied with the conditions of the grant. Government grants related to assets are included in the balance sheet as a reduction of the cost of the asset and result in reduced depreciation expense over the useful life of the asset. Government grants that relate to expenses are recognized in the income statement as a reduction of the related expense or as a component of other income.

Asset Retirement Obligations

The fair value of a liability for an asset retirement obligation is recognized in the period in which it is incurred. The fair value of the liability is measured at discounted estimated cash flows and is adjusted to its present value in subsequent periods as accretion expense is recorded. The corresponding asset retirement costs are capitalized as part of the carrying amount of the related long-lived asset and depreciated over the asset's useful life. The Company's asset retirement obligations are primarily associated with Tonnage Gases on-site long-term supply contracts, under which the Company has built a facility on land owned by the customer and is obligated to remove the facility at the end of the contract term. The Company's asset retirement obligations totaled $63.4 and $57.6 at 30 September 2011 and 2010, respectively.

Goodwill

Acquisitions are accounted for using the acquisition method. The purchase price is allocated to the assets acquired and liabilities assumed based on their estimated fair market values. Any excess purchase price over the fair market value of the net assets acquired, including identified intangibles, is recorded as goodwill. Preliminary purchase price allocations are made at the date of acquisition and finalized when information needed to affirm underlying estimates is obtained, within a maximum allocation period of one year.

Goodwill is subject to impairment testing at least annually. In addition, goodwill is tested more frequently if a change in circumstances or the occurrence of events indicates that potential impairment exists.

Intangible Assets

Intangible assets with determinable lives primarily consist of customer relationships as well as purchased patents and technology. We have no intangible assets with indefinite lives. The cost of intangible assets with determinable lives is amortized on a straight-line basis over the estimated period of economic benefit. No residual value is estimated for these intangible assets.

Customer relationships are generally amortized over periods of five to twenty-five years. Purchased patents and technology and other intangibles are amortized based on contractual terms, ranging generally from five to twenty years. Amortizable lives are adjusted whenever there is a change in the estimated period of economic benefit.

Restricted Cash

Restricted cash includes the proceeds from the issuance of certain industrial revenue bonds that must be held in escrow until related project spending occurs. Restricted cash is classified as other noncurrent assets in the consolidated balance sheets. Refer to Note 22, Supplemental Information.

Pension Benefits

The cost of pension benefits is recognized over the employees' service period. We are required to use actuarial methods and assumptions in the valuation of defined benefit obligations and the determination of expense. Differences between actual and expected results or changes in the value of obligations and plan assets are not recognized in earnings as they occur but, rather, systematically and gradually over subsequent periods. Refer to Note 15, Retirement Benefits, for disclosures related to our pension and other postretirement benefits.

New Accounting Guidance

12 Months Ended

Sep. 30, 2011

New Accounting Guidance [Abstract]

New Accounting Guidance

2. NEW ACCOUNTING GUIDANCE

Accounting Guidance Implemented in 2011

MULTIPLE-DELIVERABLE REVENUE ARRANGEMENTS

In October 2009, the Financial Accounting Standards Board (FASB) issued authoritative guidance on multiple-deliverable revenue arrangements. This new guidance amends the existing criteria for separating consideration received in multiple-deliverable arrangements and requires that arrangement consideration be allocated at the inception of the arrangement to all deliverables based on their relative selling price. The guidance establishes a hierarchy for determining the selling price of a deliverable which is based on vendor-specific objective evidence, third-party evidence, or management estimates. This guidance was effective for us on 1 October 2010. Upon adoption, the guidance was applied prospectively from the beginning of the fiscal year for new or materially modified arrangements. The adoption of this guidance did not have an effect on our accounting for multiple-deliverable revenue arrangements, nor is it expected to materially impact our consolidated financial statements in subsequent periods.

CONSOLIDATION OF VARIABLE INTEREST ENTITIES

In June 2009, the FASB issued authoritative guidance that amends previous guidance for determining whether an entity is a variable interest entity (VIE). It requires an enterprise to perform an analysis to determine whether the Company's variable interests give it a controlling financial interest in a VIE. A company would be required to assess whether it has an implicit financial responsibility to ensure that a VIE operates as designed when determining whether it has the power to direct the activities of the VIE that most significantly impact the entity's economic performance. In addition, ongoing reassessments of whether an enterprise is the primary beneficiary of a VIE are required. This guidance was effective for us 1 October 2010. The adoption of this guidance did not have a material impact on our consolidated financial statements.

New Accounting Guidance to be Implemented

GOODWILL IMPAIRMENT

In September 2011, the FASB issued authoritative guidance that amends previous guidance related to the manner in which entities test goodwill for impairment. The new guidance provides an entity the option to first perform a qualitative assessment to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If it is determined to be more likely than not that the fair value of a reporting unit is less than its carrying amount, entities must perform the quantitative analysis of the goodwill impairment test. Otherwise, the quantitative test is optional. This guidance will be effective for us for annual and interim goodwill impairment tests performed after 30 September 2012. The implementation of this guidance does not impact our consolidated financial statements.

MULTIEMPLOYER PENSION

In September 2011, the FASB issued authoritative guidance that amends previous guidance related to the disclosure requirements for employers participating in multiemployer pension plans. The purpose of the new disclosures is to provide financial statement users with information about an employer's level of participation in and the financial health of significant plans. Current recognition and measurement guidance for an employer's participation in a multiemployer plan is not affected. This guidance will be effective for our fiscal year 2012 annual disclosures. Based on our level of participation in multiemployer plans, the impact of adopting this guidance should not be material to our consolidated financial statements.

STATEMENT OF COMPREHENSIVE INCOME

In June 2011, the FASB issued authoritative guidance that amends previous guidance for the presentation of comprehensive income. It eliminates the current option to present other comprehensive income in the statement of changes in equity. Under this revised guidance, an entity will have the option to present the components of net income and other comprehensive income in either a single continuous statement of comprehensive income or in two separate but consecutive financial statements. The standard is effective for us beginning in the first quarter of fiscal year 2013. We are currently evaluating the presentation alternatives for adopting the guidance, but we do not anticipate a material impact on our consolidated financial statements upon adoption.

FAIR VALUE MEASUREMENTS

In May 2011, the FASB issued authoritative guidance that amends previous guidance for fair value measurement and disclosure requirements. The revised guidance changes certain fair value measurement principles, clarifies the application of existing fair value measurements and expands the disclosure requirements, particularly for Level 3 fair value measurements. This standard is effective for us beginning in the second quarter of fiscal year 2012. We have evaluated the impact of this guidance and concluded that it will not have a material impact on our consolidated financial statements.

Tabular disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 154
-Paragraph 2, 17, 18
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 28
-Paragraph 23, 24
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 01
-Paragraph b
-Subparagraph 6
-Article 10

Reference 4: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-SubTopic 10
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-Paragraph 1
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Reference 5: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6801783&loc=d3e22580-107794

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Indirect Effects of a Change in Accounting Principle
-URI http://asc.fasb.org/extlink&oid=6515603

Reference 7: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6503790

Reference 8: http://www.xbrl.org/2003/role/presentationRef
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-URI http://asc.fasb.org/extlink&oid=6507316

Reference 9: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Glossary Direct Effects of a Change in Accounting Principle
-URI http://asc.fasb.org/extlink&oid=6510796

Reference 10: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.10-01.(b)(6))
-URI http://asc.fasb.org/extlink&oid=6958853&loc=d3e46468-122699

Reference 11: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Retrospective Application
-URI http://asc.fasb.org/extlink&oid=6523989

Reference 13: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 14: http://www.xbrl.org/2003/role/presentationRef
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Airgas Transaction

12 Months Ended

Sep. 30, 2011

Airgas Transaction [Abstract]

Airgas Transaction

3. AIRGAS TRANSACTION

In February 2010, we commenced a tender offer to acquire all the outstanding common stock of Airgas, Inc. (Airgas), including the associated preferred stock purchase rights, for $60.00 per share in cash, less any required withholding tax. The offer was subject to certain terms and conditions set forth in the Offer to Purchase dated 11 February 2010, as amended, including Airgas' redemption of the preferred stock purchase rights or such rights otherwise being inapplicable to our purchase of Airgas stock. Airgas, a Delaware company, is the largest U.S. distributor of industrial, medical, and specialty gases, and hard goods. On 9 December 2010, we increased the value of our tender offer to $70.00 per share. At this price, the total value of the transaction would have been approximately $7.8 billion, including $6.1 billion of equity and $1.7 billion of assumed debt. Based on a decision by the Delaware Chancery Court to uphold the decision of Airgas' Board of Directors to retain the preferred stock purchase rights, we withdrew our offer on 15 February 2011.

In connection with the tender offer, we had secured committed financing in the form of a $6.7 billion term loan credit facility. On 3 February 2011, we entered into an amended and restated credit agreement providing for an amended $6.7 billion term loan credit facility with a maturity date of 4 June 2011. The amended credit facility agreement contained the same covenants as the original agreement: one financial covenant, a maximum leverage ratio, and other affirmative and negative covenants, including restrictions on liens and certain subsidiary indebtedness. No additional underwriting fees were incurred in relation to the amended agreement. On 16 February 2011, in connection with the termination of the offer to purchase all outstanding shares of common stock of Airgas, the credit facility was terminated. No early termination penalties were incurred and all fees previously accrued and due under the credit facility were paid as of the date of termination.

Prior to the tender offer, we purchased approximately 1.5 million shares of Airgas stock for a total cost of $69.6. This amount was recorded as an available-for-sale investment within other noncurrent assets on the consolidated balance sheet. On 16 February 2011, we sold the 1.5 million shares of Airgas stock for total proceeds of $94.7 and recognized a gain of $25.1 ($15.9 after-tax, or $.07 per share).

For the year ended 30 September 2011, a net loss of $48.5 ($31.6 after-tax, or $.14 per share) was recognized related to this transaction. This amount is reflected separately on the consolidated income statement as "Net loss on Airgas transaction" and includes amortization of the fees related to the term loan credit facility, the gain on the sale of Airgas stock, and other acquisition-related costs. For the year ended 30 September 2010, $96.0 ($60.1 after-tax, or $.28 per share) in expense was recognized in relation to this transaction. For the years ended 30 September 2011 and 2010, cash payments for the acquisition-related costs were $156.2 and $12.0, respectively. These payments are classified as operating activities on the consolidated statements of cash flows.

Business Combinations

12 Months Ended

Sep. 30, 2011

Business Combinations [Abstract]

Business Combinations

4. BUSINESS COMBINATIONS

In the second quarter of 2010, we entered into agreements that enabled us to acquire 100% of the outstanding shares of the French SAGA group (SAGA), which consists of SAGA, SAGA Medical, and SAGA Technologies. SAGA is an independent industrial gas provider in France with packaged gases, liquid bulk, and medical businesses. The acquisition of SAGA supports the Merchant Gases segment's integration strategy by enhancing market position in southwest and central France. SAGA revenues for calendar year 2009 were approximately € 25 million, or $35.

Under the terms of these agreements, we purchased 51.47% of the shares of SAGA on 1 March 2010 for € 34.5 million or $47.2 ($25.0 net of cash acquired of $22.2) with the remaining shares purchased on 30 November 2010 for the fixed price of € 44.8 million, or approximately $62.0 under a put and call option structure. At 30 September 2010, this structure was accounted for as a financing of the purchase of the remaining shares and reported within short-term borrowings on the consolidated balance sheet.

The acquisition of SAGA was accounted for as a business combination, and its results of operations were included in our consolidated income statement after the acquisition date. The purchase price was allocated to the assets acquired and the liabilities assumed based on their fair values as of the acquisition date, with the amount exceeding the fair value recorded as goodwill. During the fourth quarter of 2010, we finalized the purchase price allocation with no material adjustments made to the preliminary valuation. The final purchase price allocation included identified intangibles of $42.5, plant and equipment of $40.8, goodwill of $35.0 (which is deductible for tax purposes), and other net assets of $12.7. Additionally, deferred tax liabilities of $23.0 were recognized. The identified intangibles primarily relate to customer relationships and are being amortized over 23 years.

Goodwill, which was assigned to the Merchant Gases segment, largely consisted of expected revenue and cost synergies resulting from the business combination. Revenue synergies will result primarily from the sale of differentiated offerings and cost synergies from combining supply chains and optimization of the combined logistics. The fair value of plant and equipment was quantified primarily using a cost approach, by estimating reproduction/replacement cost consistent with assumptions market participants would use. Intangible assets consisted primarily of customer relationships for which fair value was determined using a discounted cash flow analysis under the income approach. The income approach required estimating a number of factors, including projected revenue growth, customer attrition rates, profit margin, and the discount rate. The remaining identifiable assets and liabilities were primarily cash, accounts receivable, and payables and accrued liabilities, for which book value approximated fair value.

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 88-16
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 51, 52
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Appendix F
-Paragraph F4
-Subparagraph e

Reference 4: http://www.xbrl.org/2003/role/presentationRef
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-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 67-73
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
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Reference 7: http://www.xbrl.org/2003/role/presentationRef
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Reference 18: http://www.xbrl.org/2003/role/presentationRef
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Reference 19: http://www.xbrl.org/2003/role/presentationRef
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Global Cost Reduction Plan [Abstract]

Global Cost Reduction Plan

12 Months Ended

Sep. 30, 2011

Global Cost Reduction Plan

5. GLOBAL COST REDUCTION PLAN

2009 Plan

The 2009 results from continuing operations included a total charge of $298.2 ($200.3 after-tax, or $.94 per share) for the global cost reduction plan. In the first quarter of 2009, we announced the global cost reduction plan designed to lower our cost structure and better align our businesses to reflect rapidly declining economic conditions around the world. The 2009 first-quarter results included a charge of $174.2 ($116.1 after-tax, or $.55 per share). In the third quarter 2009, due to the continuing slow economic recovery, we committed to additional actions associated with our global cost reduction plan that resulted in a charge of $124.0 ($84.2 after-tax, or $.39 per share).

The total 2009 charge included $210.0 for severance and other benefits, including pension-related costs, associated with the elimination of approximately 2,550 positions from our global workforce. The reductions were targeted at reducing overhead and infrastructure costs, reducing and refocusing elements of our technology and business development spending, lowering our plant operating costs, and the closure of certain manufacturing facilities. The remainder of this charge, $88.2, was for business exits and asset management actions. Assets held for sale were written down to net realizable value, and an environmental liability of $16.0 was recognized. This environmental liability resulted from a decision to sell a production facility which was sold in December 2009. Refer to Note 16, Commitments and Contingencies, for additional information.

Business Segments

The global cost reduction plan charge recorded in 2009 was excluded from segment operating profit. The table below displays how this charge related to the businesses at the segment level:


	Severance and Other Benefits		Asset Impairments/ Other Costs		Total
Merchant Gases		$127.5		$7.2	$134.7
Tonnage Gases		14.2		—	14.2
Electronics and Performance Materials		30.6		58.9	89.5
Equipment and Energy		37.7		22.1	59.8
2009 Charge		$210.0		$88.2	$298.2

During 2010, we revised our estimate of the costs associated with the 2009 global cost reduction plan. The unfavorable impact of additional severance and other benefits was primarily offset by favorable variances related to completed business exits and asset management actions. These adjustments to the charge were excluded from segment operating profit and did not have a material impact on any individual segment. As of 30 September 2011, the planned actions associated with the global cost reduction plan were completed.

Accrual Balance

The following table summarizes changes to the carrying amount of the accrual for the global cost reduction plan:


	Severance and Other Benefits			Asset Impairments/ Other Costs			Total
First quarter 2009 charge		$120.0			$54.2			$174.2
Third quarter 2009 charge		90.0			34.0			124.0
Environmental charge ^(A)		—			(16.0	)		(16.0	)
Noncash items		(33.8	) ^(B)		(66.1	)		(99.9	)
Cash expenditures		(75.3	)		(.9	)		(76.2	)
Currency translation adjustment		4.3			—			4.3
30 September 2009		$105.2			$5.2			$110.4
Adjustment to charge		7.6			(6.6	)		1.0
Environmental charge ^(A)		—			1.5			1.5
Noncash items		(2.8	)^(B)		.1			(2.7	)
Cash expenditures		(102.8	)		(.2	)		(103.0	)
Currency translation adjustment		(5.3	)		—			(5.3	)
30 September 2010		$1.9			$—			$1.9
Cash expenditures		(1.9	)		$—			(1.9	)
30 September 2011		$—			$—			$—

^(A)

Reflected in accrual for environmental obligations. See Note 16, Commitments and Contingencies.

^(B)

Primarily pension-related costs, which are reflected in the accrual for pension benefits.

The entire disclosure for restructuring and related activities. Description of restructuring activities such as exit and disposal activities, include facts and circumstances leading to the plan, the expected plan completion date, the major types of costs associated with the plan activities, total expected costs, the accrual balance at the end of the period, and the periods over which the remaining accrual will be settled.

Discontinued Operations

12 Months Ended

Sep. 30, 2011

Discontinued Operations [Abstract]

Discontinued Operations

6. DISCONTINUED OPERATIONS

In 2007, we implemented several changes to improve performance in our U.S. Healthcare business, including management changes, product and service offering simplification, and other measures. However, market and competitive conditions were more challenging than anticipated and financial results did not meet expectations. In response to the disappointing financial results, during the third quarter of 2008, management conducted an evaluation of the strategic alternatives for the business. In July 2008, the Board of Directors authorized management to pursue the sale of this business. Accordingly, beginning in the fourth quarter of 2008, the U.S. Healthcare business was accounted for as discontinued operations.

In the first quarter of 2009, we recorded an impairment charge of $48.7 ($30.9 after-tax, or $.15 per share), reflecting a revision in the estimated net realizable value of the U.S. Healthcare business. Also, a tax benefit of $8.8, or $.04 per share, was recorded to revise the estimated tax benefit related to previously recognized impairment charges.

As a result of events that occurred during the second quarter of 2009, which increased our ability to realize tax benefits associated with the impairment charges recorded in 2008, we recognized a one-time tax benefit of $16.7, or $.08 per share.

During the third quarter of 2009, we sold more than half of our remaining U.S. Healthcare business to OptionCare Enterprises, Inc., a subsidiary of Walgreen Co., and Landauer-Metropolitan, Inc. (LMI) for combined cash proceeds of $38.1. We recognized an after-tax gain of $.3 resulting from these sales combined with adjustments to the net realizable value of the remaining businesses.

During the fourth quarter of 2009, through a series of transactions with Rotech Healthcare, Inc. and with LMI, we sold our remaining U.S. Healthcare business for cash proceeds of $12.1. A net after-tax loss of $.7 was recognized. These transactions completed the disposal of the U.S. Healthcare business.

During the third quarter of 2011, a tax benefit of $8.9, or $.04 per share, was recognized related to the U.S. Healthcare business resulting from the completion of an audit of tax years 2007 and 2008 by the U.S. Internal Revenue Service. Refer to Note 21, Income Taxes, for further details on the audit settlement.

The operating results classified as discontinued operations, which primarily relate to the U.S. Healthcare business, are summarized below:


	2011		2010		2009
Sales		$—		$—		$125.2

Loss before taxes		$—		$—		$(5.5	)
Income tax benefit		8.9		—		2.1
Income (Loss) from operations of discontinued operations		8.9		—		(3.4	)
Loss on sale of businesses and impairment/write-down to estimated net realizable value, net of tax		—		—		(5.2	)
Income (Loss) from Discontinued Operations, net of tax		$8.9		$—		$(8.6	)

The entire disclosure for the facts and circumstances leading to the completed or expected disposal, manner and timing of disposal, the gain (loss) recognized in the income statement and the income statement caption that includes that gain (loss), amounts of revenues and pretax profit or loss reported in discontinued operations, the segment in which the disposal group was reported, and the classification (whether sold or classified as held for sale) and carrying value of the assets and liabilities comprising the disposal group. Includes all disposal groups, including those classified as components of the entity (discontinued operations).

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 144
-Paragraph 43-48
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2941-110230

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1510-107760

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e1020-107759

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e1012-107759

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e957-107759

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1474-107760

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6390789&loc=d3e2443-110228

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1436-107760

Summarized Financial Information Of Equity Affiliates [Abstract]

Inventories

12 Months Ended

Sep. 30, 2011

Inventories [Abstract]

Inventories

7. INVENTORIES

The components of inventories are as follows:


30 September	2011			2010
Inventories at FIFO cost
Finished goods		$489.1			$405.3
Work in process		29.9			29.3
Raw materials, supplies and other		258.2			208.2
		777.2			642.8
Less: Excess of FIFO cost over LIFO cost		(95.8	)		(71.2	)
		$681.4			$571.6

Inventories valued using the LIFO method comprised 42.3% and 40.5% of consolidated inventories before LIFO adjustment at 30 September 2011 and 2010, respectively. Liquidation of LIFO inventory layers in 2011 and 2010 did not materially affect the results of operations. During 2009, there was no liquidation of prior years' LIFO inventory layers.

FIFO cost approximates replacement cost. Our inventory has a high turnover, and as a result, there is little difference between the original cost of an item and its current replacement cost.

Summarized Financial Information Of Equity Affiliates

12 Months Ended

Sep. 30, 2011

Summarized Financial Information Of Equity Affiliates

8. SUMMARIZED FINANCIAL INFORMATION OF EQUITY AFFILIATES

The following table presents summarized financial information on a combined 100% basis of the companies accounted for by the equity method. Amounts presented include the accounts of the following equity affiliates:


Air Products South Africa (Proprietary) Limited (50%);		INOX Air Products Limited (50%);
Bangkok Cogeneration Company Limited (49%);		Kulim Industrial Gases Sdn. Bhd. (50%);
Bangkok Industrial Gases Co., Ltd. (49%);		Sapio Produzione Idrogeno Ossigeno S.r.l. (49%);
Chengdu Air & Gas Products Ltd. (50%);		SembCorp Air Products (HyCo) Pte. Ltd. (40%);
Daido Air Products Electronics, Inc. (20%);		Tecnologia en Nitrogeno S. de R.L. de C.V. (50%);
DuPont Air Products NanoMaterials Limited (50%);		Tyczka Industrie-Gases GmbH (50%);
Helap S.A. (50%);		WuXi Hi-Tech Gas Co., Ltd. (50%);
High-Tech Gases (Beijing) Co., Ltd. (50%);		and principally, other industrial gas producers.
INFRA Group (40%);


	2011		2010		2009
Current assets		$1,247.7		$1,133.4
Noncurrent assets		2,189.8		2,071.6
Current liabilities		742.8		788.9
Noncurrent liabilities		613.6		559.9
Net sales		2,650.5		2,293.4		2,129.7
Sales less cost of sales		987.2		964.4		874.4
Operating income		537.0		454.5		404.7
Net income		351.3		293.0		257.7

Dividends received from equity affiliates were $105.9, $75.4, and $52.9 in 2011, 2010, and 2009, respectively.

The investment in net assets of and advances to equity affiliates as of 30 September 2011 and 2010 included investment in foreign affiliates of $972.5 and $877.7, respectively.

As of 30 September 2011 and 2010, the amount of investment in companies accounted for by the equity method included goodwill in the amount of $62.6 and $60.2, respectively.

The entire disclosure for equity investment, or group of investments, for which combined disclosure is appropriate, including: (a) the name of each investee and percentage of ownership of common stock, (b) accounting policies for investments in common stock, (c) difference between the amount at which the investment is carried and the amount of underlying equity in net assets and the accounting treatment of the difference, (d) the total fair value of each identified investment for which a market value is available, (e) summarized information as to assets, liabilities, and results of operations of the investees (for investments in unconsolidated subsidiaries, common stock of joint ventures, or other investments using the equity method), and (f) material effects of possible conversions, exercises, or contingent issuances of the investee. Other disclosures include (a) the names of any investee in which the investor owns 20 percent or more of the voting stock and investment is not accounted for using the equity method, and the reasons why not, and (b) the names of any investee in which the investor owns less than 20 percent of the voting stock and the investment is accounted for using the equity method, and the reasons why it is.

Goodwill And Intangible Assets [Abstract]

Plant And Equipment

12 Months Ended

Sep. 30, 2011

Plant And Equipment [Abstract]

Plant And Equipment

9. PLANT AND EQUIPMENT

The major classes of plant and equipment are as follows:

30 September

Average
Useful Life

2011

2010

Land

$173.2

$172.3

Buildings

30 years

919.5

886.2

Production facilities ^(A)

Merchant Gases

15 years

3,256.4

3,346.3

Tonnage Gases

15 to 20 years

6,266.5

5,691.4

Electronics and Performance Materials

10 to 15 years

1,862.3

2,061.2

Equipment and Energy

5 to 20 years

165.9

296.5

Total production facilities

11,551.1

11,395.4

Distribution equipment ^(B)

5 to 25 years

3,092.4

2,918.6

Other machinery and equipment

10 to 25 years

252.3

248.0

Construction in progress

1,238.6

689.2

Plant and equipment, at cost

17,227.1

16,309.7

Less accumulated depreciation

9,815.1

9,258.4

Plant and equipment, net

$7,412.0

$7,051.3

^(A)

Depreciable lives of production facilities related to long-term customer supply contracts are matched to the contract lives.

^(B)

The depreciable lives for various types of distribution equipment are 10 to 25 years for cylinders, depending on the nature and properties of the product; 20 years for tanks; 7.5 years for customer stations; and 5 to 15 years for tractors and trailers.

Depreciation expense was $851.0, $837.7, and $815.9 in 2011, 2010, and 2009, respectively.

Goodwill And Intangible Assets

12 Months Ended

Sep. 30, 2011

Goodwill And Intangible Assets

10. GOODWILL AND INTANGIBLE ASSETS

Changes to the carrying amount of consolidated goodwill by segment are as follows:


30 September	2010		Acquisitions and Adjustments		Currency Translation and Other			2011
Merchant Gases		$595.7		$4.9		$(25.2	)		$575.4
Tonnage Gases		15.5		—		(1.4	)		14.1
Electronics and Performance Materials		303.4		—		(.5	)		302.9
		$914.6		$4.9		$(27.1	)		$892.4


30 September	2009		Acquisitions and Adjustments			Currency Translation and Other			2010
Merchant Gases		$601.3		$19.1			$(24.7	)		$595.7
Tonnage Gases		16.3		(.9	)		.1			15.5
Electronics and Performance Materials		298.4		.3			4.7			303.4
		$916.0		$18.5			$(19.9	)		$914.6

Acquisitions and adjustments related to the Merchant Gases segment in 2010 included $35.0 associated with the SAGA acquisition, offset by a reduction in goodwill for an adjustment related to a previous acquisition of $16.9. Refer to Note 4, Business Combinations, for further detail on the SAGA acquisition.

In the fourth quarter of 2011, we conducted the required annual test of goodwill for impairment. We determined that the fair value of each of the reporting units substantially exceeded its carrying value, and therefore there were no indications of impairment.

The table below provides details of acquired intangible assets at 30 September 2011 and 2010:


			30 September 2011							30 September 2010
	Average Amortization Period		Gross		Accumulated Amortization			Net		Gross		Accumulated Amortization			Net
Customer relationships		11.6 years		$271.2		$(74.3	)		$196.9		$283.3		$(62.7	)		$220.6
Patents and technology		11.9 years		98.0		(76.8	)		21.2		99.0		(73.6	)		25.4
Other		30.3 years		78.9		(36.3	)		42.6		73.3		(33.6	)		39.7
				$448.1		$(187.4	)		$260.7		$455.6		$(169.9	)		$285.7

Amortization expense for intangible assets was $22.9, $25.7, and $24.4 in 2011, 2010, and 2009, respectively.

Projected annual amortization expense for intangible assets as of 30 September 2011 is as follows:


2012			$21.1
2013			20.4
2014			19.8
2015			19.5
2016			17.8
Thereafter			162.1
			$260.7

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

Leases

12 Months Ended

Sep. 30, 2011

Leases [Abstract]

Leases

11. LEASES

Lessee Accounting

Capital leases, primarily for the right to use machinery and equipment, are included with owned plant and equipment on the consolidated balance sheet in the amount of $20.3 and $18.2 at 30 September 2011 and 2010, respectively. Related amounts of accumulated depreciation are $12.0 and $12.1, respectively.

Operating leases principally relate to real estate and also include aircraft, distribution equipment, and vehicles. Certain leases include escalation clauses, renewal, and/or purchase options. Rent expense is recognized on a straight-line basis over the minimum lease term. Rent expense under operating leases, including month-to-month agreements, was $96.7 in 2011, $93.0 in 2010, and $89.9 in 2009.

At 30 September 2011, minimum payments due under leases are as follows:


	Capital Leases		Operating Leases
2012		$2.8		$53.3
2013		1.6		43.7
2014		1.3		34.6
2015		1.1		28.9
2016		1.0		24.4
Thereafter		1.3		35.4
		$9.1		$220.3

The present value of the above future capital lease payments totaled $7.5, of which $2.2 was classified as current and $5.3 as long-term in the liability section of the consolidated balance sheet. At 30 September 2010, the present value of the future capital lease payments was $9.8, of which $1.4 was classified as current and $8.4 as long-term. Refer to Note 14, Debt.

Lessor Accounting

As discussed under Revenue Recognition in Note 1, Major Accounting Policies, certain contracts associated with facilities that are built to provide product to a specific customer are required to be accounted for as leases. Lease receivables, net, were included principally in noncurrent capital lease receivables on our consolidated balance sheets with the remaining balance in current capital lease receivables. Refer to Note 22, Supplemental Information.

The components of lease receivables were as follows:


30 September	2011			2010
Gross minimum lease payments receivable		$1,663.2			$1,195.5
Unearned interest income		(573.3	)		(386.0	)
Lease Receivables, net		$1,089.9			$809.5

Lease payments collected in 2011, 2010, and 2009 were $84.6, $68.0, and $53.6, respectively.

At 30 September 2011, minimum lease payments to be collected are as follows:


2012			$120.9
2013			130.8
2014			129.2
2015			127.1
2016			125.2
Thereafter			1,030.0
			$1,663.2

Financial Instruments

12 Months Ended

Sep. 30, 2011

Financial Instruments [Abstract]

Financial Instruments

12. FINANCIAL INSTRUMENTS

Currency Price Risk Management

Our earnings, cash flows, and financial position are exposed to foreign currency risk from foreign currency denominated transactions and net investments in foreign operations. It is our policy to minimize our cash flow volatility to changes in currency exchange rates. This is accomplished by identifying and evaluating the risk that our cash flows will change in value due to changes in exchange rates and by executing the appropriate strategies necessary to manage such exposures. Our objective is to maintain economically balanced currency risk management strategies that provide adequate downside protection.

Forward Exchange Contracts

We enter into forward exchange contracts to reduce the cash flow exposure to foreign currency fluctuations associated with highly anticipated cash flows and certain firm commitments such as the purchase of plant and equipment. The maximum remaining term of any forward exchange contract currently outstanding and designated as a cash flow hedge at 30 September 2011 is 1.9 years. Forward exchange contracts are also used to hedge the value of investments in certain foreign subsidiaries and affiliates by creating a liability in a currency in which we have a net equity position. The primary currency pair in this portfolio of forward contracts is the Euro/U.S. dollar.

In addition to the forward exchange contracts that are designated as hedges, we utilize forward exchange contracts that are not designated as hedges. These contracts are used to economically hedge foreign currency-denominated monetary assets and liabilities, primarily working capital. The primary objective of these forward contracts is to protect the value of foreign currency-denominated monetary assets and liabilities from the effects of volatility in foreign exchange rates that might occur prior to their receipt or settlement. This portfolio of forward exchange contracts comprises many different foreign currency pairs, with a profile that changes from time to time depending on business activity and sourcing decisions.

The table below summarizes our outstanding currency price risk management instruments:


	2011				2010
30 September	US$ Notional		Years Average Maturity		US$ Notional		Years Average Maturity
Forward Exchange Contracts
Cash flow hedges		$1,512.1		.4		$1,605.5		.5
Net investment hedges		635.8		2.0		648.5		3.0
Not designated		226.3		.1		373.6		.2
Total Forward Exchange Contracts		$2,374.2		.8		$2,627.6		1.1

In addition to the above, we use foreign currency-denominated debt and qualifying intercompany loans that are related to an outstanding borrowing from a third party to hedge the foreign currency exposures of our net investment in certain foreign affiliates. The designated foreign currency denominated debt at 30 September 2011 included € 742.1 million and 30 September 2010 included € 782.1 million and NT$967.0 million. The designated intercompany loans were € 437.0 million at 30 September 2011 and 2010.

Debt Portfolio Management

It is our policy to identify on a continuing basis the need for debt capital and evaluate the financial risks inherent in funding the Company with debt capital. Reflecting the result of this ongoing review, the debt portfolio and hedging program are managed with the objectives and intent to (1) reduce funding risk with respect to borrowings made by us to preserve our access to debt capital and provide debt capital as required for funding and liquidity purposes, and (2) manage the aggregate interest rate risk and the debt portfolio in accordance with certain debt management parameters.

Interest Rate Swap Contracts

We enter into interest rate swap contracts to change the fixed/variable interest rate mix of our debt portfolio in order to maintain the percentage of fixed- and variable-rate debt within the parameters set by management. In accordance with these parameters, the agreements are used to optimize interest rate risks and costs inherent in our debt portfolio. Our interest rate swap portfolio will generally consist of fixed to floating swaps which are designated as fair value hedges and pre-issuance interest rate swap agreements to hedge the interest rate on anticipated fixed-rate debt issuance which are designated as cash flow hedges. At 30 September 2011, the outstanding interest rate swaps were denominated in U.S. dollars and Euros. The maximum remaining hedged term of any interest rate swap designated as a cash flow hedge is .4 years. The notional amount of the interest rate swap agreements are equal to or less than the designated debt instrument being hedged. When interest rate swaps are used, the indices of the swap instruments and the debt to which they are designated are the same. It is our policy not to enter into any interest rate swap contracts which lever a move in interest rates on a greater than one-to-one basis.

Cross Currency Interest Rate Swap Contracts

We enter into cross currency interest rate swap contracts when risk management deems necessary. These contracts may entail both the exchange of fixed- and floating-rate interest payments periodically over the life of the agreement and the exchange of one currency for another currency at inception and at a specified future date. These contracts effectively convert the currency denomination of a debt instrument into another currency in which we have a net equity position while changing the interest rate characteristics of the instrument. The contracts are used to hedge certain net investments in foreign operations. The current cross currency swap portfolio consists of a single fixed-to-fixed swap between U.S. dollars and British Pound Sterling.

The following table summarizes our outstanding interest rate swaps and cross currency interest rate swaps:

30 September 2011

30 September 2010

US$
Notional

Pay %

Average
Receive %

Years
Average
Maturity

US$
Notional

Pay %

Average
Receive %

Years
Average
Maturity

Interest rate swaps (fair value hedge)

$583.9

LIBOR

3.38%

4.5

$617.0

LIBOR

3.66%

3.8

Cross currency interest rate swaps (net investment hedge)

$32.2

5.54%

5.48%

2.5

$32.2

5.54%

5.48%

3.5

Interest rate swaps (cash flow hedge)

$300.0

2.33%

LIBOR

$—

—

The table below summarizes the fair value and balance sheet location of our outstanding derivatives:

30 September

2011

2010

2011

2010

Balance Sheet
Location

Fair

Value

Fair

Value

Balance Sheet
Location

Fair

Value

Fair

Value

Derivatives Designated as Hedging Instruments

Forward exchange contracts

Other receivables

$22.0

$29.8

Accrued liabilities

$33.0

$22.3

Interest rate swap contracts

Other receivables

5.8

6.6

Accrued liabilities

3.8

1.3

Forward exchange contracts

Other noncurrent
assets

45.0

38.7

Other noncurrent
liabilities

1.0

19.9

Interest rate swap contracts

Other noncurrent
assets

42.4

33.1

Other noncurrent
liabilities

2.2

2.4

Total Derivatives Designated as Hedging Instruments

$115.2

$108.2

$40.0

$45.9

Derivatives Not Designated as Hedging Instruments

Forward exchange contracts

Other receivables

$3.0

$6.2

Accrued liabilities

$3.8

$8.3

Total Derivatives

$118.2

$114.4

$43.8

$54.2

Refer to Note 13, Fair Value Measurements, which defines fair value, describes the method for measuring fair value, and provides additional disclosures regarding fair value measurements.

The table below summarizes the gain or loss related to our cash flow hedges, fair value hedges, net investment hedges, and derivatives not designated as hedging instruments.


	Year Ended 30 September
	Forward Exchange Contracts						Foreign Currency Debt				Other^(A)						Total
	2011			2010			2011		2010		2011			2010			2011			2010
Cash Flow Hedges, net of tax Net gain (loss) recognized in OCI (effective portion)		$6.4			$(11.3	)		$—		$—		$(5.6	)		$(.3	)		$.8			$(11.6	)
Net (gain) loss reclassified from OCI to sales/cost of sales (effective portion)		8.4			9.6			—		—		—			(2.0	)		8.4			7.6
Net loss reclassified from OCI to other income (effective portion)		1.2			6.2			—		—		—			—			1.2			6.2
Net loss reclassified from OCI to interest expense (effective portion)		—			—			—		—		1.2			1.2			1.2			1.2
Net (gain) loss reclassified from OCI to other income (ineffective portion)		.7			(.2	)		—		—		—			—			.7			(.2	)
Fair Value Hedges
Net gain recognized in interest expense^(B)		$—			$—			$—		$—		$9.4			$19.7			$9.4			$19.7
Net Investment Hedges, net of tax Net gain recognized in OCI		$5.7			$58.4			$16.9		$109.8		$—			$.4			$22.6			$168.6
Derivatives Not Designated as Hedging Instruments Net (loss) recognized in other income^(C)		$(5.8	)		$(24.7	)		$—		$—		$—			$—			$(5.8	)		$(24.7	)

^(A)

Other includes the impact on other comprehensive income (OCI) and earnings primarily related to interest rate swaps.

^(B)

The impact of fair value hedges noted above was largely offset by gains and losses resulting from the impact of changes in related interest rates on recognized outstanding debt.

^(C)

The impact of the non-designated hedges noted above was largely offset by gains and losses, respectively, resulting from the impact of changes in exchange rates on recognized assets and liabilities denominated in nonfunctional currencies.

The amount of cash flow hedges' unrealized gains and losses at 30 September 2011 that are expected to be reclassified to earnings in the next twelve months are not material.

The cash flows related to all derivative contracts are reported in the operating activities section of the consolidated statements of cash flows.

Credit Risk-Related Contingent Features

Certain derivative instruments are executed under agreements that require us to maintain a minimum credit rating with both Standard & Poor's and Moody's. If our credit rating falls below this threshold, the counterparty to the derivative instruments has the right to request full collateralization on the derivatives' net liability position. The net liability position of derivatives with credit risk-related contingent features was $10.5 as of 30 September 2011 and $4.2 as of 30 September 2010. Because our current credit rating is above the various pre-established thresholds, no collateral has been posted on these liability positions.

Counterparty Credit Risk Management

We execute all financial derivative transactions with counterparties that are highly rated financial institutions, all of which are investment grade at this time. Some of our underlying derivative agreements give us the right to require the institution to post collateral if its credit rating falls below the pre-established thresholds with Standard & Poor's or Moody's. These are the same agreements referenced in Credit Risk-Related Contingent Features above. The collateral that the counterparties would be required to post was $66.1 as of 30 September 2011 and $52.2 as of 30 September 2010. No financial institution is required to post collateral at this time, as all have credit ratings at or above the threshold.

The entire disclosure for the entity's entire derivative instruments and hedging activities. Describes an entity's risk management strategies, derivatives in hedging activities and non-hedging derivative instruments, the assets, obligations, liabilities, revenues and expenses arising therefrom, and the amounts of and methodologies and assumptions used in determining the amounts of such items.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 45
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Fair Value Measurements

12 Months Ended

Sep. 30, 2011

Fair Value Measurements [Abstract]

Fair Value Measurements

13. FAIR VALUE MEASUREMENTS

Fair value is defined as an exit price (i.e., the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date). The methods and assumptions used to measure the fair value of financial instruments are as follows:

Derivatives

The fair value of our interest rate swap agreements and forward exchange contracts are quantified using the income approach and are based on estimates using standard pricing models. These models take into account the value of future cash flows as of the balance sheet date, discounted to a present value using discount factors that match both the time to maturity and currency of the underlying instruments. The computation of the fair values of these instruments is generally performed by the Company. These standard pricing models utilize inputs which are derived from or corroborated by observable market data such as interest rate yield curves and currency spot and forward rates. In addition, on an ongoing basis, we randomly test a subset of our valuations against valuations received from the transaction's counterparty to validate the accuracy of our standard pricing models. Counterparties to these derivative contracts are highly rated financial institutions.

Refer to Note 12, Financial Instruments, for a description of derivative instruments, including details on the balance sheet line classifications.

Available-for-Sale Securities

The fair value of available-for-sale securities is based on a market approach, specifically quoted market prices in publicly traded companies from the New York Stock Exchange and NASDAQ. These investments are reported within other noncurrent assets on the consolidated balance sheet, with holding gains and losses recorded to OCI, net of tax.

At 30 September 2010, the available-for-sale securities primarily included the investment in Airgas stock of $102.5. At 30 September 2010, the change in unrealized appreciation of this investment carried at fair value was $32.9 ($20.6 after-tax). On 16 February 2011, we sold the shares of Airgas stock. Refer to Note 3, Airgas Transaction, for further detail.

Long-term Debt

The fair value of our debt is based on estimates using standard pricing models that take into account the value of future cash flows as of the balance sheet date, discounted to a present value using discount factors that match both the time to maturity and currency of the underlying instruments. These standard valuation models utilize observable market data such as interest rate yield curves and currency spot rates. We generally perform the computation of the fair value of these instruments.

Other Liabilities

Other liabilities include the obligation to purchase 25% of the remaining shares of Cryoservice Limited (CSL) in December 2011. CSL is not publicly traded and therefore, no observable market exists for the shares. The fair value of the outstanding liability was determined using an internally developed valuation model that was based on a multiple of earnings formula. The liability is reported in payables and accrued liabilities and other noncurrent liabilities on the consolidated balance sheet as of 30 September 2011 and 2010, respectively. Refer to Note 19, Noncontrolling Interests, for additional information.

The carrying values and fair values of financial instruments were as follows:


30 September	2011				2010
	Carrying Value		Fair Value		Carrying Value		Fair Value
Assets
Derivatives
Forward exchange contracts		$70.0		$70.0		$74.7		$74.7
Interest rate swap contracts		48.2		48.2		39.7		39.7
Available-for-sale securities
Airgas investment		—		—		102.5		102.5
Other investments		—		—		1.1		1.1
Liabilities
Derivatives
Forward exchange contracts		$37.8		$37.8		$50.5		$50.5
Interest rate swap contracts		6.0		6.0		3.7		3.7
Long-term debt, including current portion		3,999.7		4,284.5		3,842.3		4,146.4
Other liabilities		51.0		51.0		42.0		42.0

The carrying amounts reported in the balance sheet for cash and cash items, trade receivables, payables and accrued liabilities, accrued income taxes, and short-term borrowings approximate fair value due to the short-term nature of these instruments. Accordingly, these items have been excluded from the above table.

The fair value hierarchy prioritizes the inputs to valuation techniques used to measure fair value into three broad levels as follows:

Level 1—Quoted

prices (unadjusted) in active markets for identical assets or liabilities.

Level 2—Inputs

that are observable for the asset or liability, either directly or indirectly through market corroboration, for substantially the full term of the asset or liability.

Level 3—Inputs

that are unobservable for the asset or liability based on our own assumptions (about the assumptions market participants would use in pricing the asset or liability).

The following table summarizes assets and liabilities measured at fair value on a recurring basis in the consolidated balance sheets:


	30 September 2011								30 September 2010
	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
Assets at Fair Value
Derivatives
Forward exchange contracts		$70.0		$—		$70.0		$—		$74.7		$—		$74.7		$—
Interest rate swap contracts		48.2		—		48.2		—		39.7		—		39.7		—
Available-for-sale securities
Airgas investment		—		—		—		—		102.5		102.5		—		—
Other investments		—		—		—		—		1.1		1.1		—		—
Total Assets at Fair Value		$118.2		$—		$118.2		$—		$218.0		$103.6		$114.4		$—

Liabilities at Fair Value
Derivatives
Forward exchange contracts		$37.8		$—		$37.8		$—		$50.5		$—		$50.5		$—
Interest rate swap contracts		6.0		—		6.0		—		3.7		—		3.7		—
Other liabilities		51.0		—		—		51.0		42.0		—		—		42.0
Total Liabilities at Fair Value		$94.8		$—		$43.8		$51.0		$96.2		$—		$54.2		$42.0

Changes in the fair value of other liabilities, valued using significant unobservable inputs (Level 3), are presented below:


Balance at 30 September 2010	$42.0
Expense included in interest expense	3.4
Currency translation adjustment	(.5	)
Adjustment to initial estimate (see Note 19, Noncontrolling Interests)	6.1
Balance at 30 September 2011	$51.0

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

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Debt

12 Months Ended

Sep. 30, 2011

Debt [Abstract]

Debt

14. DEBT

The tables below summarize our outstanding debt at 30 September 2011 and 2010:

Total Debt


30 September	2011		2010
Short-term borrowings		$562.5		$286.0
Current portion of long-term debt		72.2		182.5
Long-term debt		3,927.5		3,659.8
Total Debt		$4,562.2		$4,128.3



Short-term Borrowings

30 September	2011		2010
Bank obligations		$562.5		$225.1
Short-term borrowings associated with SAGA acquisition		—		60.9
Total Short-term Borrowings		$562.5		$286.0

The weighted average interest rate of short-term borrowings outstanding at 30 September 2011 and 2010 was 2.5% and 3.2%, respectively.

Cash paid for interest, net of amounts capitalized, was $117.4 in 2011, $126.9 in 2010, and $127.6 in 2009.

Long-term Debt


30 September	Maturities		2011			2010
Payable in U.S. Dollars
Debentures
8.75%		2021		$18.4			$18.4
Medium-term Notes
Weighted average rate
Series D 7.3%		2016		32.1			63.1
Series E 7.6%		2026		17.2			17.2
Series G 4.1%		2011		—			125.0
Senior Notes
Note 4.15%		2013		300.0			300.0
Note 2.0%		2016		350.0			—
Note 4.375%		2019		400.0			400.0
Other
Weighted average rate
Variable-rate industrial revenue bonds 0.1%		2016 to 2050		975.1			975.1
Other 2.1%		2012 to 2019		58.5			55.1
Payable in Other Currencies
Eurobonds 4.25%		2012		401.6			408.1
Eurobonds 3.75%		2014		401.6			408.1
Eurobonds 3.875%		2015		401.6			408.1
Eurobonds 4.625%		2017		401.6			408.1
Other 5.1%		2012 to 2018		241.9			255.3
Capital Lease Obligations
United States 5.0%		2012 to 2018		4.8			5.5
Foreign 3.9%		2013 to 2017		2.7			4.3
Less: Unamortized discount				(7.4	)		(9.1	)
				3,999.7			3,842.3
Less: Current portion				(72.2	)		(182.5	)
Total Long-term Debt				$3,927.5			$3,659.8

Maturities of long-term debt in each of the next five years and beyond are as follows:


2012			$473.8
2013			333.9
2014			475.7
2015			479.2
2016			402.0
Thereafter			1,835.1
			$3,999.7

On 2 August 2011, we issued a $350.0 senior fixed-rate 2.0% note which matures on 2 August 2016. Additionally, on 3 November 2011 we issued a $400.0 senior fixed-rate 3.0% note that matures 3 November 2021.

We have obtained the commitment of a number of commercial banks to lend money at market rates whenever needed. At 30 September 2010, our total multicurrency committed credit facility amounted to $2,000.0. Effective 31 March 2011, we increased our total multicurrency revolving facility maturing in July 2013, by $170.0, to a total of $2,170.0. Effective 30 June 2011, this $2,170.0 facility was amended to extend the maturity date from 8 July 2013 to 30 June 2015, reduce facility fees to reflect current market rates and modify the financial covenant. Our only financial covenant changed from a maximum ratio of total debt to earnings before interest, taxes, depreciation, and amortization (EBITDA) of not greater than 3.0 to a ratio of long-term debt to equity of no greater than 60%. There were no other material changes to the terms and conditions of the arrangement. This credit facility provides a source of liquidity and is used to support the issuance of commercial paper. No borrowings were outstanding under this commitment at 30 September 2011. Additional commitments totaling $474.2 are maintained by our foreign subsidiaries, of which $419.1 was borrowed and outstanding at 30 September 2011.

The 4.25% Eurobond maturing in 2012 is classified as long-term debt because of our ability to refinance the debt under our $2,170.0 committed credit facility maturing in 2015. Our current intention is to refinance this 4.25% Eurobond on a long-term basis via the U.S. or European public or private placement debt markets.

Various debt agreements to which we are a party also include financial covenants and other restrictions, including restrictions pertaining to the ability to create property liens and enter into certain sale and leaseback transactions. We are in compliance with all of our financial debt covenants.

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

Retirement Benefits

12 Months Ended

Sep. 30, 2011

Retirement Benefits [Abstract]

Retirement Benefits

15. RETIREMENT BENEFITS

The Company and certain of its subsidiaries sponsor defined benefit pension plans and defined contribution plans that cover a substantial portion of its worldwide employees. The principal defined benefit pension plans are the U.S. salaried pension plan and the U.K. pension plan. These plans were closed to new participants in 2005 and were replaced with defined contribution plans. The principal defined contribution plan is the Retirement Savings Plan, in which a substantial portion of the U.S. employees participate; a similar plan is offered to U.K. employees. We also provide other postretirement benefits consisting primarily of healthcare benefits to U.S. retirees who meet age and service requirements.

Defined Benefit Pension Plans

Pension benefits earned are generally based on years of service and compensation during active employment. The cost of our defined benefit pension plans included the following components:


	2011						2010						2009
	U.S.			International			U.S.			International			U.S.			International
Service cost		$43.6			$29.5			$42.5			$24.2			$33.9			$26.6
Interest cost		122.8			64.2			123.4			60.2			124.0			60.9
Expected return on plan assets		(179.4	)		(68.1	)		(164.3	)		(64.3	)		(146.5	)		(55.3	)
Amortization
Prior service cost		2.6			.6			2.7			.7			2.6			1.3
Actuarial loss		63.9			30.9			46.9			19.9			6.2			10.8
Settlements and curtailments		—			1.0			10.7			.8			9.7			4.8
Special termination benefits		—			.3			(.9	)		4.2			7.2			22.1
Other		—			2.2			—			2.3			—			1.7
Net Periodic Pension Cost		$53.5			$60.6			$61.0			$48.0			$37.1			$72.9

We calculate net periodic pension cost for a given fiscal year based on assumptions developed at the end of the previous fiscal year. The following table sets forth the weighted average assumptions used in the calculation of net periodic pension cost:


	2011						2010						2009
	U.S.			International			U.S.			International			U.S.			International
Discount rate		5.1	%		4.9	%		5.7	%		5.5	%		7.6	%		6.5	%
Expected return on plan assets		8.8	%		6.6	%		8.8	%		7.3	%		8.8	%		7.4	%
Rate of compensation increase		4.0	%		3.8	%		4.3	%		3.7	%		4.3	%		4.4	%

Our U.S. supplemental pension plan provides for a lump sum benefit payment option at the time of retirement, or for corporate officers, six months after the participant's retirement date. We recognize pension settlements when payments exceed the sum of the service and interest cost components of net periodic pension cost of the plan for the fiscal year. We recognized $11.5 and $10.7 of settlement charges in 2010 and 2009, respectively.

Special termination benefits for fiscal year 2010 included $2.8 for the global cost reduction plan. Special termination benefits for fiscal year 2009 included $28.5 for the global cost reduction plan. The global cost reduction charge for fiscal year 2009 also included $3.8 for curtailment losses related to the U.K. pension plans.

The projected benefit obligation (PBO) is the actuarial present value of benefits attributable to employee service rendered to date, including the effects of estimated future salary increases. The following table sets forth the weighted average assumptions used in the calculation of the PBO:


	2011					2010
	U.S.			International		U.S.			International
Discount rate		4.9	%		5.5%		5.1	%		4.9%
Rate of compensation increase		4.0	%		3.8%		4.0	%		3.8%

The following table reflects the change in the PBO and the change in the fair value of plan assets based on the plan year measurement date, as well as the amounts recognized in the consolidated balance sheets.


	2011						2010
	U.S.			International			U.S.			International
Change in Projected Benefit Obligation
Obligation at beginning of year		$2,446.2			$1,307.4			$2,210.5			$1,175.5
Service cost		43.6			29.5			42.5			24.2
Interest cost		122.8			64.2			123.4			60.2
Amendments		.6			—			1.3			1.0
Actuarial loss (gain)		93.3			(183.6	)		176.9			115.0
Curtailments		—			(.4	)		—			(1.2	)
Settlements		—			(5.1	)		(20.0	)		—
Special termination benefits		—			.3			(.9	)		4.2
Participant contributions		—			3.7			—			4.1
Benefits paid		(100.6	)		(43.0	)		(87.5	)		(48.0	)
Currency translation/other		—			(13.1	)		—			(27.6	)
Obligation at End of Year		$2,605.9			$1,159.9			$2,446.2			$1,307.4

Change in Plan Assets
Fair value at beginning of year		$1,727.2			$984.4			$1,457.7			$793.3
Actual return on plan assets		36.4			(7.0	)		153.5			77.7
Company contributions		181.3			59.7			227.5			179.1
Participant contributions		—			3.7			—			4.1
Benefits paid		(100.6	)		(43.0	)		(87.5	)		(48.0	)
Settlements		—			(5.1	)		(24.0	)		—
Currency translation/other		—			(13.3	)		—			(21.8	)
Fair Value at End of Year		$1,844.3			$979.4			$1,727.2			$984.4

Funded Status at End of Year		$(761.6	)		$(180.5	)		$(719.0	)		$(323.0	)

Amounts Recognized
Noncurrent assets		$—			$6.5			$—			$—
Accrued liabilities		(10.3	)		(23.5	)		(178.2	)		(60.6	)
Noncurrent liabilities		(751.3	)		(163.5	)		(540.8	)		(262.4	)
Net Amount Recognized		$(761.6	)		$(180.5	)		$(719.0	)		$(323.0	)

The changes in plan assets and benefit obligation that have been recognized in other comprehensive income on a pretax basis during 2011 and 2010 consist of the following:


	2011						2010
	U.S.			International			U.S.			International
Net actuarial loss (gain) arising during the period		$236.5			$(108.8	)		$191.6			$103.2
Amortization of net actuarial loss		(63.9	)		(31.9	)		(57.6	)		(20.7	)
Prior service cost arising during the period		.6			—			1.3			1.0
Amortization of prior service cost		(2.6	)		(.6	)		(2.7	)		(.7	)
Total		$170.6			$(141.3	)		$132.6			$82.8

The net actuarial loss (gain) represents the actual changes in the estimated obligation and plan assets that have not yet been recognized in the consolidated income statement and are included in accumulated other comprehensive loss. Actuarial losses arising during 2011 for the domestic plans are primarily attributable to lower discount rates and actual asset returns below expected returns. Actuarial gains arising during 2011 for the international plans are the result of higher discount rates, partially offset by lower than expected actual returns on plan assets. Actuarial gains and losses are not recognized immediately, but instead are accumulated as a part of the unrecognized net loss balance and amortized into net periodic pension cost. Asset gains and losses are primarily amortized on a straight-line basis over a five-year period. Liability gains and losses are amortized over the average remaining service period of participating employees as certain thresholds are met.

The components recognized in accumulated other comprehensive loss on a pretax basis at 30 September consisted of:


	2011				2010
	U.S.		International		U.S.		International
Net actuarial loss		$1,283.5		$392.7		$1,110.9		$533.4
Prior service cost		14.9		6.5		16.9		7.1
Net transition liability		—		.4		—		.4
Total		$1,298.4		$399.6		$1,127.8		$540.9

The amount of accumulated other comprehensive loss at 30 September 2011 that is expected to be recognized as a component of net periodic pension cost during fiscal year 2012 is as follows:


	U.S.		International
Net actuarial loss		$76.0		$15.2
Prior service cost		2.5		.4

Our pension plan investment strategy is to invest in diversified portfolios to earn a long-term return consistent with acceptable risk in order to pay retirement benefits and meet regulatory funding requirements while minimizing company cash contributions over time. The plans invest primarily in passive and actively managed equity and debt securities. Equity investments are diversified geographically and by investment style and market capitalization. Company stock is not permitted as a plan asset except as a component of index funds. Fixed income investments include sovereign, corporate and asset-backed securities generally denominated in the currency of the plan.

Asset allocation targets are established based on the long-term return, volatility and correlation characteristics of the asset classes, the profiles of the plans' liabilities, and acceptable levels of risk. Actual allocations vary from target due to market changes and are reviewed regularly. Assets are rebalanced through contributions and benefit payments as deemed appropriate. The actual and target allocations at the measurement date are as follows:

2011 Target Allocation

2011 Actual Allocation

2010 Actual Allocation

Asset Category

U.S.

International

U.S.

International

U.S.

International

Equity securities

60–80%

53–62%

66%

53%

70%

55%

Debt securities

20–30%

35–45%

28%

43%

25%

38%

Real estate/other

0–10%

1–3%

Cash

—

Total

100%

100%

The expected return on plan assets assumption is based on a weighted average of estimated long-term returns of major asset classes and the historical performance of plan assets. In determining asset class returns, we take into account historical long-term returns and the value of active management, as well as the interest rate environment.

The following table summarizes pension plan assets measured at fair value by asset class (see Note 13, Fair Value Measurements, for definition of the levels):


	30 September 2011								30 September 2010
	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
U.S. Qualified Pension Plans
Cash and cash equivalents		$9.2		$9.2		$—		$—		$8.3		$8.3		$—		$—
Equity securities		537.2		537.2		—		—		551.1		551.1		—		—
Equity mutual funds		138.3		138.3		—		—		87.4		87.4		—		—
Equity pooled funds		543.9		—		543.9		—		573.1		—		573.1		—
Fixed income:
Bonds (government and corporate)		18.7		—		18.7		—		17.8		—		17.8		—
Mortgage and asset-backed securities		23.5		—		23.5		—		31.7		—		31.7		—
Mutual funds		37.8		37.8		—		—		50.6		50.6		—		—
Pooled funds		434.4		—		434.4		—		330.2		—		330.2		—
Real estate pooled funds		101.3		—		—		101.3		77.0		—		—		77.0
Total U.S. Qualified Pension Plans		$1,844.3		$722.5		$1,020.5		$101.3		$1,727.2		$697.4		$952.8		$77.0

International Pension Plans
Cash and cash equivalents		$18.0		$18.0		$—		$—		$46.5		$46.5		$—		$—
Equity pooled funds		524.0		—		524.0		—		538.3		—		538.3		—
Fixed income pooled funds		340.8		—		340.8		—		297.6		—		297.6		—
Other pooled funds		25.0		—		8.3		16.7		25.9		—		8.0		17.9
Insurance contracts		71.6		—		—		71.6		76.1		—		—		76.1
Total International Pension Plans		$979.4		$18.0		$873.1		$88.3		$984.4		$46.5		$843.9		$94.0

The following table summarizes changes in fair value of the pension plan assets classified as Level 3, by asset class:


	Real Estate Pooled Funds		Other Pooled Funds			Insurance Contracts			Total
30 September 2009		$72.7		$13.0			$66.7			$152.4
Actual return on plan assets:
Assets held at end of year		4.3		.5			5.1			9.9
Assets sold during the period		—		.2			—			.2
Purchases, sales, and settlements, net		—		4.2			4.3			8.5
30 September 2010		$77.0		$17.9			$76.1			$171.0
Actual return on plan assets:
Assets held at end of year		15.3		(.5	)		.3			15.1
Assets sold during the period		—		.4			—			.4
Purchases, sales, and settlements, net		9.0		(1.1	)		(4.8	)		3.1
30 September 2011		$101.3		$16.7			$71.6			$189.6

The descriptions and fair value methodologies for the U.S. and International pension plan assets are as follows:

Cash and Cash Equivalents

The carrying amounts of cash and cash equivalents approximate fair value due to the short-term maturity.

Equity Securities

Equity securities are valued at the closing market price reported on a U.S. exchange where the security is actively traded and are therefore classified as Level 1 assets.

Mutual Funds

Shares of mutual funds are valued at their published closing net asset value (NAV) and are classified as Level 1 assets.

Pooled Funds

Securities are valued at the NAV of the shares held at year end, which is based on the fair value of the underlying investments, and are classified as Level 2 assets.

Corporate and Government Bonds

Corporate and government bonds are classified as Level 2 assets, as they are either valued at quoted market prices from observable pricing sources at the reporting date or valued based upon comparable securities with similar yields and credit ratings.

Mortgage and Asset-Backed Securities

Securities are classified as Level 2 assets, as they are either valued at quoted market prices from observable pricing sources at the reporting date or valued based upon comparable securities with similar yields, credit ratings, and purpose of the underlying loan.

Real Estate Pooled Funds

Funds are classified as Level 3 assets, as they are carried at the estimated fair value of the underlying properties. Estimated fair value is calculated utilizing a combination of key inputs such as revenue and expense growth rates, terminal capitalization rates, and discount rates. These key inputs are consistent with practices prevailing within the real estate investment management industry.

Other Pooled Funds

Securities classified as Level 2 assets are valued at the NAV of the shares held at year end, which is based on the fair value of the underlying investments. Securities and interests classified as Level 3 are carried at the estimated fair value of the underlying investments. The underlying investments are valued based on bids from brokers or other third-party vendor sources that utilize expected cash flow streams and other uncorroborated data, including counterparty credit quality, default risk, discount rates and the overall capital market liquidity.

Insurance Contracts

Insurance contracts are classified as Level 3 assets, as they are carried at contract value, which approximates the estimated fair value. The estimated fair value is based on the fair value of the underlying investment of the insurance company.

We anticipate contributing approximately $40 to $60 to the defined benefit pension plans in 2012.

Projected benefit payments, which reflect expected future service, are as follows:


	U.S.		International
2012		$104.5		$42.1
2013		111.1		45.2
2014		117.2		47.0
2015		124.4		49.6
2016		132.2		50.1
2017–2021		790.3		282.3

These estimated benefit payments are based on assumptions about future events. Actual benefit payments may vary significantly from these estimates.

The accumulated benefit obligation (ABO) is the actuarial present value of benefits attributed to employee service rendered to a particular date, based on current salaries. The ABO for all defined benefit pension plans was $3,379.5 and $3,327.6 at the end of 2011 and 2010, respectively.

The following table provides information on pension plans where the benefit liability exceeds the value of plan assets:

30 September 2011

30 September 2010

U.S.

International

U.S.

International

Pension Plans with PBO in Excess of Plan Assets:

PBO

$2,605.9

$1,015.9

$2,446.2

$1,294.8

Fair value of plan assets

1,844.3

828.9

1,727.2

971.2

Pension Plans with ABO in Excess of Plan Assets:

ABO

$2,316.5

$923.2

$2,121.5

$1,170.4

Fair value of plan assets

1,844.3

816.9

1,727.2

944.5

Included in the tables above are several pension arrangements that are not funded because of jurisdictional practice. The ABO and PBO related to these plans for 2011 were $136.4 and $161.7, respectively.

Defined Contribution Plans

We maintain a nonleveraged employee stock ownership plan (ESOP) which forms part of the Air Products and Chemicals, Inc. Retirement Savings Plan (RSP). The ESOP was established in May of 2002. The balance of the RSP is a qualified defined contribution plan including a 401(k) elective deferral component. A substantial portion of U.S. employees are eligible and participate.

We treat dividends paid on ESOP shares as ordinary dividends. Under existing tax law, we may deduct dividends which are paid with respect to shares held by the plan. Shares of the Company's common stock in the ESOP totaled 4,935,196 as of 30 September 2011.

We match a portion of the participants' contributions to the RSP and other various worldwide defined contribution plans. Our contributions to the RSP include a Company core contribution for certain eligible employees who do not receive their primary retirement benefit from the defined benefit pension plans, with the core contribution based on a percentage of pay that is dependent on years of service. For the RSP, we also make matching contributions on overall employee contributions as a percentage of the employee contribution and include an enhanced contribution for certain eligible employees that do not participate in the defined benefit pension plans. Worldwide contributions expensed to income in 2011, 2010, and 2009 were $31.3, $30.8, and $30.6, respectively.

Other Postretirement Benefits

We provide other postretirement benefits consisting primarily of healthcare benefits to certain U.S. retirees who meet age and service requirements. The healthcare benefit is a continued medical benefit until the retiree reaches age 65. Healthcare benefits are contributory, with contribution percentages adjusted periodically. The retiree medical costs are capped at a specified dollar amount, with the retiree contributing the remainder.

The cost of our other postretirement benefit plans included the following components:


	2011		2010			2009
Service cost		$5.7		$4.7			$4.0
Interest cost		3.3		4.6			6.5
Amortization
Prior service credit		—		(.1	)		(1.4	)
Actuarial loss		3.8		2.9			.1
Net Periodic Postretirement Cost		$12.8		$12.1			$9.2

We calculate net periodic postretirement cost for a given fiscal year based on assumptions developed at the end of the previous fiscal year. The discount rate assumption used in the calculation of net periodic postretirement cost for 2011, 2010, and 2009 was 2.8%, 4.2%, and 7.4%, respectively.

We measure the other postretirement benefits as of 30 September. The discount rate assumption used in the calculation of the accumulated postretirement benefit obligation was 3.7% and 2.8% for 2011 and 2010, respectively.

The following table reflects the change in the accumulated postretirement benefit obligation and the amounts recognized in the consolidated balance sheets:


	2011			2010
Obligation at beginning of year		$120.9			$116.0
Service cost		5.7			4.7
Interest cost		3.3			4.6
Actuarial (gain) loss		(2.5	)		7.8
Benefits paid		(13.6	)		(12.2	)
Obligation at End of Year		$113.8			$120.9

Amounts Recognized
Accrued liabilities		$12.8			$13.7
Noncurrent liabilities		101.0			107.2

The changes in benefit obligation that have been recognized in other comprehensive income on a pretax basis during 2011 and 2010 for our other postretirement benefit plans consist of the following:


	2011			2010
Net actuarial (gain) loss arising during the period		$(2.5	)		$7.8
Amortization of net actuarial loss		(3.8	)		(2.9	)
Amortization of prior service credit		—			.1
Total		$(6.3	)		$5.0

The net actuarial loss recognized in accumulated other comprehensive loss on a pretax basis was $29.2 at 30 September 2011 and $35.5 at 30 September 2010. Of the 30 September 2011 actuarial loss, it is estimated that $2.7 will be amortized into net periodic postretirement cost over fiscal year 2012.

The assumed healthcare trend rates are as follows:


	2011		2010
Healthcare trend rate		8.0%		8.0%
Ultimate trend rate		5.0%		5.0%
Year the ultimate trend rate is reached		2015		2014

The effect of a change in the healthcare trend rate is slightly tempered by a cap on the average retiree medical cost. The impact of a one percentage point change in the assumed healthcare cost trend rate on net periodic postretirement cost and the obligation is not material.

Projected benefit payments are as follows:


2012			$13.0
2013			12.8
2014			12.7
2015			12.6
2016			12.7
2017–2021			56.9

These estimated benefit payments are based on assumptions about future events. Actual benefit payments may vary significantly from these estimates.

The entire disclosure for pension and other postretirement benefits.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Commitments And Contingencies [Abstract]

Commitments And Contingencies

12 Months Ended

Sep. 30, 2011

Commitments And Contingencies

16. COMMITMENTS AND CONTINGENCIES

Litigation

We are involved in various legal proceedings, including competition, environmental, health, safety, product liability, and insurance matters. In September 2010, the Brazilian Administrative Council for Economic Defense (CADE) issued a decision against our Brazilian subsidiary, Air Products Brasil Ltda., and several other Brazilian industrial gas companies for alleged anticompetitive activities. CADE imposed a civil fine of R$179.2 million (approximately $95 at 30 September 2011) on Air Products Brasil Ltda. This fine was based on a recommendation by a unit of the Brazilian Ministry of Justice whose investigation began in 2003 alleging violation of competition laws with respect to the sale of industrial and medical gases. The fines are based on a percentage of our total revenue in Brazil in 2003.

We have denied the allegations made by the authorities and filed an appeal in October 2010 with the Brazilian courts. Certain of our defenses, if successful, could result in the matter being dismissed with no fine against us. We, with advice of our outside legal counsel, have assessed the status of this matter and have concluded that although an adverse final judgment after exhausting all appeals is reasonably possible, such a judgment is not probable. As a result, no provision has been made in the consolidated financial statements. We estimate the maximum possible loss to be the full amount of the fine of R$179.2 million (approximately $95 at 30 September 2011) plus interest accrued thereon until final disposition of the proceedings.

We are required to provide security for the payment of the fine (and interest) in order to suspend execution of the judgment during the appeal process, during which time interest will accrue on the fine. The security is only collectible by the court in the event we are not successful in our appeal and do not timely pay the fine. The security could be in the form of a bank guarantee or in other forms which the courts deem acceptable. The form of security to be provided by us has not been finally determined.

While we do not expect that any sums we may have to pay in connection with this or any other legal proceeding would have a materially adverse effect on our consolidated financial position or net cash flows, a future charge for regulatory fines or damage awards could have a significant impact on our net income in the period in which it is recorded.

Environmental

In the normal course of business, we are involved in legal proceedings under the Comprehensive Environmental Response, Compensation, and Liability Act (the federal Superfund law), similar state environmental laws, and the Resource Conservation and Recovery Act (RCRA) relating to the designation of certain sites for investigation or remediation. Presently, there are approximately 35 sites on which a final settlement has not been reached where we, along with others, have been designated a potentially responsible party by the Environmental Protection Agency or are otherwise engaged in investigation or remediation, including cleanup activity at certain of our current and former manufacturing sites. We continually monitor these sites for which we have environmental exposure.

Accruals for environmental loss contingencies are recorded when it is probable that a liability has been incurred and the amount of loss can be reasonably estimated consistent with the policy set forth in Note 1, Major Accounting Policies. The consolidated balance sheets at 30 September 2011 and 2010 included an accrual of $82.3 and $87.0, respectively, primarily as part of other noncurrent liabilities. The environmental liabilities will be paid over a period of up to 30 years. We estimate the exposure for environmental loss contingencies to range from $82 to a reasonably possible upper exposure of $96 as of 30 September 2011.

Actual costs to be incurred at identified sites in future periods may vary from the estimates, given inherent uncertainties in evaluating environmental exposures. Using reasonably possible alternative assumptions of the exposure level could result in an increase to the environmental accrual. Due to the inherent uncertainties related to environmental exposures, a significant increase to the reasonably possible upper exposure level could occur if a new site is designated, the scope of remediation is increased, a different remediation alternative is identified, or a significant increase in our proportionate share occurs. We do not expect that any sum we may have to pay in connection with environmental matters in excess of the amounts recorded or disclosed above would have a material adverse impact on our financial position or results of operations in any one year.

PACE

At 30 September 2011, $35.2 of the environmental accrual was related to the Pace facility.

In 2006, we sold our Amines business, which included operations at Pace, Florida and recognized a liability for retained environmental obligations associated with remediation activities at Pace. We are required by the Florida Department of Environmental Protection (FDEP) and the United States Environmental Protection Agency (USEPA) to continue our remediation efforts. We estimated that it would take about 20 years to complete the groundwater remediation, and the costs through completion were estimated to range from $42 to $52. As no amount within the range was a better estimate than another, we recognized a pretax expense in fiscal 2006 of $42.0 as a component of income from discontinued operations and recorded an environmental accrual of $42.0 in continuing operations on the consolidated balance sheets. There has been no change to the estimated exposure range related to the Pace facility.

We have implemented many of the remedial corrective measures at the Pace, Florida facility required under 1995 Consent Orders issued by the FDEP and the USEPA. Contaminated soils have been bioremediated, and the treated soils have been secured in a lined on-site disposal cell. Several groundwater recovery systems have been installed to contain and remove contamination from groundwater. We completed an extensive assessment of the site to determine how well existing measures are working, what additional corrective measures may be needed, and whether newer remediation technologies that were not available in the 1990s might be suitable to more quickly and effectively remove groundwater contaminants. Based on assessment results, we completed a focused feasibility study that appears to have identified new and alternative approaches which should more effectively remove contaminants and achieve the targeted remediation goals. We continue to review the new approaches with the FDEP.

PIEDMONT

At 30 September 2011, $21.0 of the environmental accrual was related to the Piedmont site.

On 30 June 2008, we sold our Elkton, Maryland and Piedmont, South Carolina production facilities and the related North American atmospheric emulsions and global pressure sensitive adhesives businesses. In connection with the sale, we recognized a liability for retained environmental obligations associated with remediation activities at the Piedmont site. This site is under active remediation for contamination caused by an insolvent prior owner. The sale of the site triggered expense recognition. Prior to the sale, remediation costs had been capitalized since they improved the property as compared to its condition when originally acquired. We are required by the South Carolina Department of Health and Environmental Control to address both contaminated soil and groundwater. Numerous areas of soil contamination have been addressed, and contaminated groundwater is being recovered and treated. We estimated that it would take until 2015 to complete source area remediation and another 15 years thereafter to complete groundwater recovery, with costs through completion estimated to be $24.0. We recognized a pretax expense in 2008 of $24.0 as a component of income from discontinued operations and recorded an environmental liability of $24.0 in continuing operations on the consolidated balance sheets. There has been no change to the estimated exposure.

PAULSBORO

At 30 September 2011, $8.0 of the environmental accrual was related to the Paulsboro site.

During the first quarter of 2009, management committed to a plan to sell the production facility in Paulsboro, New Jersey and recognized a $16.0 environmental liability associated with this site. The change in the liability balance since it was established is a result of spending and changes in the estimated exposure. In December 2009, we completed the sale of this facility. We are required by the New Jersey state law to investigate and, if contaminated, remediate a site upon its sale. We estimate that it will take several years to complete the investigation/remediation efforts at this site.

Guarantees and Warranties

We are a party to certain guarantee agreements, including debt guarantees of equity affiliates and equity support agreements. These guarantees are contingent commitments that are related to activities of our primary businesses.

We have guaranteed repayment of some additional borrowings of certain unconsolidated equity affiliates. At 30 September 2011, these guarantees have terms in the range of two to seven years, with maximum potential payments of $22.7.

We have entered into an equity support agreement and operations guarantee related to an air separation facility constructed in Trinidad for a venture in which we own 50%. At 30 September 2011, maximum potential payments under joint and several guarantees were $61.0. Exposures under the guarantee decline over time and are completely extinguished by 2024.

To date, no equity contributions or payments have been required since the inception of these guarantees. The fair value of the above guarantees is not material.

We, in the normal course of business operations, have issued product warranties in our Equipment business. Also, contracts often contain standard terms and conditions which typically include a warranty and indemnification to the buyer that the goods and services purchased do not infringe on third-party intellectual property rights. The provision for estimated future costs relating to warranties is not material to the consolidated financial statements.

We do not expect that any sum we may have to pay in connection with guarantees and warranties will have a materially adverse effect on our consolidated financial condition, liquidity, or results of operations.

Put Option Agreements

We enter into put option agreements with certain affiliated companies as discussed below. We account for the put options as contingent liabilities to purchase an asset. Since the inception of these agreements and through 30 September 2011, we determined that we were not certain that these options would be exercised by the other shareholders.

In 2002, we entered into a put option agreement as part of the purchase of an additional interest in San Fu Gas Company, Ltd., renamed Air Products San Fu Company, Ltd. (San Fu), an industrial gas company in Taiwan. Currently, we have an ownership interest of 74% in San Fu. Put options were issued which give other shareholders the right to sell San Fu stock to us at market price when exercised. The options are effective through January 2015 and allow for the sale of all stock owned by other shareholders to us. The estimated U.S. dollar price of purchasing the stock owned by other shareholders based on the exchange rate at 30 September 2011 would be approximately $270.

Purchase Obligations

We are obligated to make future payments under unconditional purchase obligations as summarized below:


2012			$649
2013			121
2014			119
2015			117
2016			122
Thereafter			547
Total			$1,675

Most of our long-term unconditional purchase obligations relate to feedstock supply for numerous HyCO (hydrogen, carbon monoxide, and syngas) facilities. The price of feedstock supply is principally related to the price of natural gas. However, long-term take-or-pay sales contracts to HyCO customers are generally matched to the term of the feedstock supply obligations and provide recovery of price increases in the feedstock supply. Due to the matching of most long-term feedstock supply obligations to customer sales contracts, we do not believe these purchase obligations would have a material effect on our financial condition or results of operations.

The unconditional purchase obligations also include other product supply and purchase commitments and electric power and natural gas supply purchase obligations, which are primarily pass-through contracts with our customers. We also have one supply agreement that is not matched to a customer sales contract that has terms extending to ten years and the related commitment is at prices that are not in excess of current market prices. In addition, purchase commitments to spend approximately $510 for additional plant and equipment are included in the unconditional purchase obligations in 2012.

Agreement to Purchase Shares in Equity Affiliate

In September 2011, we entered into an agreement to acquire 25% of the outstanding shares of Abdullah Hashim Industrial Gases & Equipment Co. Ltd. (AHG). The transaction is subject to regulatory approval and customary local closing conditions. The closing date is expected to be in early 2012. AHG is a company of the privately-owned Abdullah Hashim Group, based in the Kingdom of Saudi Arabia. AHG is the largest private industrial gases company in Saudi Arabia. It is comprised of three businesses, including industrial gases, equipment and consumables and refrigerants. The transaction will be recorded as an investment in net assets of and advances to equity affiliates in the Merchant Gases segment with the purchase price included in capital expenditures in the period it closes.

The entire disclosure for commitments and contingencies.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 14
-Paragraph 3
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 9, 10, 11, 12
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.25)
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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Reference 5: http://www.xbrl.org/2003/role/presentationRef
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
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Reference 7: http://www.xbrl.org/2003/role/presentationRef
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Capital Stock

12 Months Ended

Sep. 30, 2011

Capital Stock [Abstract]

Capital Stock

17. CAPITAL STOCK

Authorized capital stock consists of 25 million preferred shares with a par value of $1 per share, none of which was outstanding at 30 September 2011, and 300 million shares of common stock with a par value of $1 per share.

In 2007, the Board of Directors authorized the repurchase of up to $1,000 of our outstanding common stock. We repurchase shares pursuant to Rules 10b5-1 and 10b-18 under the Securities Exchange Act of 1934, as amended, through repurchase agreements established with several brokers. During fiscal year 2011, we purchased 7.4 million of our outstanding shares at a cost of $649.2, which completed our 2007 $1,000 share repurchase program.

On 15 September 2011, the Board of Directors authorized a new $1,000 share repurchase program. At 30 September 2011, $1,000 in share repurchase authorization remains.

The following table reflects the changes in common shares:


Year ended 30 September	2011			2010		2009
Number of Common Shares Outstanding
Balance, beginning of year		213,802,865			211,260,264		209,334,627
Purchase of treasury shares		(7,433,612	)		—		—
Issuance of treasury shares for stock option and award plans		3,816,003			2,542,601		1,925,637
Balance, end of year		210,185,256			213,802,865		211,260,264

Share-Based Compensation

12 Months Ended

Sep. 30, 2011

Share-Based Compensation [Abstract]

Share-Based Compensation

18. SHARE-BASED COMPENSATION

We have various share-based compensation programs, which include stock options, deferred stock units, and restricted stock. Under all programs, the terms of the awards are fixed at the grant date. We issue shares from treasury stock upon the exercise of stock options, the payout of deferred stock units, and the issuance of restricted stock awards. As of 30 September 2011, there were 5,150,869 shares available for future grant under our Long-Term Incentive Plan, which is shareholder approved.

Share-based compensation cost recognized in the consolidated income statement is summarized below:


	2011			2010			2009
Cost of sales		$3.8			$4.0			$7.9
Selling and administrative		39.5			42.5			46.9
Research and development		1.5			2.1			4.1
Global cost reduction plan		—			—			1.5
Before-Tax Share-Based Compensation Cost		44.8			48.6			60.4
Income tax benefit		(17.1	)		(18.3	)		(23.3	)
After-Tax Share-Based Compensation Cost		$27.7			$30.3			$37.1

The amount of share-based compensation cost capitalized in 2011, 2010, and 2009 was not material.

Total before-tax share-based compensation cost by type of program was as follows:


	2011		2010		2009
Stock options		$21.4		$25.0		$38.3
Deferred stock units		20.8		21.5		19.2
Restricted stock		2.6		2.1		2.9
Before-Tax Share-Based Compensation Cost		$44.8		$48.6		$60.4

Stock Options

We have granted awards of options to purchase common stock to executives, selected employees, and outside directors. The exercise price of stock options equals the market price of our stock on the date of the grant. Options generally vest incrementally over three years, and remain exercisable for ten years from the date of grant. Options have not been issued to directors since 2005.

Fair values of stock options granted prior to 1 October 2010 were estimated using a lattice-based valuation model. Beginning in fiscal 2011, we used the Black Scholes model to value stock option awards. The Black Scholes model is a widely used valuation technique that incorporates all the measurement objectives required by the share-based compensation accounting guidance. Additionally, the Black Scholes model incorporates assumptions that reflect all substantive characteristics of our program. We believe the Black Scholes model improves comparability and efficiency. The impact of the change in valuation models was not significant to the consolidated financial statements. Fair value was determined using the assumptions noted in the table below. Expected volatility and expected dividend yield for fiscal year 2011 valuations using the Black Scholes model are based on actual historical experience of our stock and dividends over the historical period equal to the expected life. Expected volatility and expected dividend yield for fiscal year 2010 and 2009 valuations using the lattice-based valuation model were based on actual historical experience of our stock and dividends over the historical period equal to the option term. The expected life represents the period of time that options granted are expected to be outstanding based on an analysis of Company-specific historical exercise data. The range given below results from certain groups of employees exhibiting different behavior. Groups of employees that have similar historical exercise behavior were considered separately for valuation purposes. The risk-free rate is based on the U.S. Treasury Strips with terms equal to the expected time of exercise as of the grant date.


	2011			2010			2009
Expected volatility		29.2%–30.0	%		32.6	%		31.2	%
Expected dividend yield		2.2	%		2.1	%		2.1	%
Expected life (in years)		7.0–8.7			6.8–8.0			6.8–8.0
Risk-free interest rate		2.4%–2.9	%		2.9%–3.3	%		3.5%–3.9	%

The weighted average grant-date fair value of options granted during 2011, 2010, and 2009 was $23.83, $25.94, $20.86, per option, respectively.

A summary of stock option activity is presented below:


Stock Options	Shares (000)			Weighted Average Exercise Price
Outstanding at 30 September 2010		16,435			$56.56
Granted		932			86.39
Exercised		(3,753	)		42.13
Forfeited		(44	)		72.46
Outstanding at 30 September 2011		13,570			$62.55
Exercisable at 30 September 2011		11,375			$59.19

Stock Options	Weighted Average Remaining Contractual Terms (in years)			Aggregate Intrinsic Value
Outstanding at 30 September 2011		4.5			$230
Exercisable at 30 September 2011		3.7			$224

The aggregate intrinsic value represents the amount by which our closing stock price of $76.37 as of 30 September 2011 exceeds the exercise price multiplied by the number of in-the-money options outstanding or exercisable as of that date.

The total intrinsic value of stock options exercised during 2011, 2010, and 2009 was $180.8, $92.4, and $62.1, respectively.

Compensation cost is generally recognized over the stated vesting period consistent with the terms of the arrangement (i.e., either on a straight-line or graded-vesting basis). Expense recognition is accelerated for retirement-eligible individuals who would meet the requirements for vesting of awards upon their retirement. As of 30 September 2011, there was $10.3 of unrecognized compensation cost related to nonvested stock options, which is expected to be recognized over a weighted average period of 1.9 years.

Cash received from option exercises during 2011 was $148.2. The total tax benefit realized from stock option exercises in 2011 was $62.7, of which $45.8 was the excess tax benefit.

Deferred Stock Units and Restricted Stock

The grant-date fair value of deferred stock units and restricted stock is estimated on the date of grant based on the market price of the stock, and compensation cost is generally amortized to expense on a straight-line basis over the vesting period during which employees perform related services. Expense recognition is accelerated for retirement-eligible individuals who would meet the requirements for vesting of awards upon their retirement.

Deferred Stock Units

We have granted deferred stock units to executives, selected employees, and outside directors. These deferred stock units entitle the recipient to one share of common stock upon vesting, which is conditioned on continued employment during the deferral period and may also be conditioned on achieving certain performance targets. The deferral period for some units ends after death, disability, or retirement. The deferral period for other performance-based deferred stock units ends at the end of the performance period (one to three years). Additionally, we have granted deferred stock units, subject to a three-, four-, or five-year deferral period, to selected employees. Deferred stock units issued to directors are paid after service on the Board of Directors ends at the time elected by the director (not to exceed 10 years after service ends).


Deferred Stock Units	Shares (000)			Weighted Average Grant-Date Fair Value
Outstanding at 30 September 2010		1,527			$64.67
Granted		299			86.42
Paid out		(306	)		68.00
Forfeited/adjustments		(15	)		86.92
Outstanding at 30 September 2011		1,505			$68.10

Cash payments made for deferred stock units were $1.0, $1.4, and $5.2 in 2011, 2010, and 2009, respectively. As of 30 September 2011, there was $29.5 of unrecognized compensation cost related to deferred stock units. The cost is expected to be recognized over a weighted average period of 2.5 years. The total fair value of deferred stock units paid out during 2011, 2010, and 2009, including shares vested in prior periods, was $26.3, $26.2, and $22.1, respectively.

Restricted Stock

We have issued shares of restricted stock to certain officers. Participants are entitled to cash dividends and to vote their respective shares. Shares granted prior to 2007 are subject to forfeiture if employment is terminated other than due to death, disability, or retirement. Shares granted since 2007 vest in four years or upon earlier retirement, death, or disability. The shares are nontransferable while subject to forfeiture.


Restricted Stock	Shares (000)			Weighted Average Grant-Date Fair Value
Outstanding at 30 September 2010		141			$70.87
Granted		32			86.39
Vested		(19	)		66.69
Outstanding at 30 September 2011		154			$74.59

As of 30 September 2011, there was $2.0 of unrecognized compensation cost related to restricted stock awards. The cost is expected to be recognized over a weighted average period of 2.8 years. The total fair value of restricted stock vested during 2011 and 2010 was $1.6 and $1.0, respectively. During 2009, no restricted stock vested.

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph 64, 65, A240
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Statement of Position (SOP)
-Number 93-6
-Paragraph 53
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 14

Reference 4: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6406099&loc=d3e25284-112666

Reference 5: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 718
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-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

Reference 6: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 7: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5444-113901

Reference 8: http://www.xbrl.org/2003/role/presentationRef
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-URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929

Noncontrolling Interests

12 Months Ended

Sep. 30, 2011

Noncontrolling Interests [Abstract]

Noncontrolling Interests

19. NONCONTROLLING INTERESTS

In 2008, we entered into a put option agreement to purchase the remaining noncontrolling interest in CryoService Limited (CSL), a cryogenic and specialty gases company in the U.K. We increased our ownership at that time from 25% to 72%. Put options were issued which gave the noncontrolling shareholders the right to require us to purchase their shares in CSL. The options were effective beginning January 2010 and are exercisable only within a 20-day option period each year. The option price is based on a multiple of earnings formula.

In June 2010, we entered into agreements obligating us to purchase 25% of the remaining shares of CSL. The agreements require the consideration, which is based on a multiple of earnings formula, to be remitted in December 2011. The share sale agreements effectively terminate the option agreements. The carrying value of the 25% noncontrolling interest at the time the sale share agreements were entered into was $10.8. As a result of this arrangement, we reduced the noncontrolling interest for the 25% purchase obligation and recorded an estimated liability based on the earnings formula. As the purchase of the noncontrolling interest does not result in a change of control, the difference between the carrying value of the 25% noncontrolling interest and the liability recognized was recorded as a $28.3 reduction in capital in excess of par value.

In the first quarter of 2011, we revised our initial estimate of the liability and recorded an adjustment of $6.1 to the liability and capital in excess of par. At 30 September 2011 and 2010, the liability amounted to $51.0 and $42.0, respectively, and has been reported in payables and accrued liabilities and other noncurrent liabilities, respectively on the consolidated balance sheet as indicated in Note 22, Supplemental Information. Refer to Note 13, Fair Value Measurements, for a rollforward of the liability balance.

The following table presents the effect of changes in ownership interests in subsidiaries on Air Products shareholder's equity:


	2011			2010			2009
Net income attributable to Air Products		$1,224.2			$1,029.1			$631.3
Transfers to noncontrolling interests
Decrease in Air Products capital in excess of par value for purchase of noncontrolling interests		(6.1	)		(28.3	)		—
Changes from Net Income Attributable to Air Products and Transfers to Noncontrolling Interests		$1,218.1			$1,000.8			$631.3

The entire disclosure for noncontrolling interest in consolidated subsidiaries, which could include the name of the subsidiary, the ownership percentage held by the parent, the ownership percentage held by the noncontrolling owners, the amount of the noncontrolling interest, the location of this amount on the balance sheet (when not reported separately), an explanation of the increase or decrease in the amount of the noncontrolling interest, the noncontrolling interest share of the net Income or Loss of the subsidiary, the location of this amount on the income statement (when not reported separately), the nature of the noncontrolling interest such as background information and terms, the amount of the noncontrolling interest represented by preferred stock, a description of the preferred stock, and the dividend requirements of the preferred stock.

Earnings Per Share

12 Months Ended

Sep. 30, 2011

Earnings Per Share [Abstract]

Earnings Per Share

20. EARNINGS PER SHARE

The calculation of basic and diluted earnings per share (EPS) is as follows:


30 September	2011		2010		2009
Numerator
Income from continuing operations		$1,215.3		$1,029.1		$639.9
Income (Loss) from discontinued operations		8.9		—		(8.6	)
Net Income Attributable to Air Products		$1,224.2		$1,029.1		$631.3
Denominator (in millions)
Weighted average number of common shares outstanding		213.0		212.2		209.9
Effect of dilutive securities
Employee stock options		3.7		3.9		2.6
Other award plans		.9		1.0		1.0
		4.6		4.9		3.6
Weighted average number of common shares outstanding assuming dilution		217.6		217.1		213.5
Basic EPS Attributable to Air Products
Income from continuing operations		$5.71		$4.85		$3.05
Income (Loss) from discontinued operations		.04		—		(.04	)
Net Income Attributable to Air Products		$5.75		$4.85		$3.01
Diluted EPS Attributable to Air Products
Income from continuing operations		$5.59		$4.74		$3.00
Income (Loss) from discontinued operations		.04		—		(.04	)
Net Income Attributable to Air Products		$5.63		$4.74		$2.96

Diluted EPS attributable to Air Products reflects the potential dilution that could occur if stock options or other share-based awards were exercised or converted into common stock. The dilutive effect is computed using the treasury stock method, which assumes all share-based awards are exercised and the hypothetical proceeds from exercise are used by the Company to purchase common stock at the average market price during the period. The incremental shares (difference between shares assumed to be issued versus purchased), to the extent they would have been dilutive, are included in the denominator of the diluted EPS calculation. Options on 2.1 million shares, 2.2 million shares, and 5.8 million shares were antidilutive and therefore excluded from the computation of diluted EPS for 2011, 2010, and 2009, respectively.

Income Taxes

12 Months Ended

Sep. 30, 2011

Income Taxes [Abstract]

Income Taxes

21. INCOME TAXES

The following table shows the components of the provision for income taxes:


	2011		2010		2009
Federal
Current		$14.7		$100.5		$88.1
Deferred		181.6		47.4		18.1
		196.3		147.9		106.2
State
Current		20.1		2.7		35.8
Deferred		2.6		4.3		(20.9	)
		22.7		7.0		14.9
Foreign
Current		187.9		140.1		113.7
Deferred		1.5		44.5		(49.5	)
		189.4		184.6		64.2
		$408.4		$339.5		$185.3

The significant components of deferred tax assets and liabilities are as follows:


30 September	2011			2010
Gross Deferred Tax Assets
Retirement benefits and compensation accruals		$513.5			$491.0
Tax loss carryforwards		43.7			62.2
Tax credits		49.6			67.4
Reserves and accruals		95.8			75.4
Acquisition-related costs		—			35.9
Asset impairment		8.6			6.7
Currency losses		28.7			29.5
Other		58.9			153.2
Valuation allowance		(28.6	)		(55.4	)
Deferred Tax Assets		770.2			865.9
Gross Deferred Tax Liabilities
Plant and equipment		1,006.7			840.9
Investment in partnerships		7.3			5.6
Unrealized gain on cost investments		—			11.8
Unremitted earnings of foreign entities		37.9			—
Intangible assets		50.5			57.0
Other		15.5			76.5
Deferred Tax Liabilities		1,117.9			991.8
Net Deferred Income Tax Liability		$347.7			$125.9

Deferred tax assets and liabilities are included within the consolidated financial statements as:


	2011		2010
Deferred Tax Assets
Other receivables and current assets		$104.0		$124.1
Other noncurrent assets		123.8		85.5
Total Deferred Tax Assets		227.8		209.6
Deferred Tax Liabilities
Payables and accrued liabilities		5.4		0.4
Deferred income taxes		570.1		335.1
Total Deferred Tax Liabilities		575.5		335.5
Net Deferred Income Tax Liability		$347.7		$125.9

Foreign and state loss carryforwards as of 30 September 2011 were $105.1 and $323.3, respectively. The foreign losses have expiration periods beginning in fiscal year 2012. Some of the foreign operations operate in jurisdictions with unlimited carryforward periods. State operating loss carryforwards have expiration periods that range between fiscal year 2012 and 2031.

The net change in the valuation allowance was a decrease of $26.8 and an increase of $23.5, for the years ended 30 September 2011 and 2010, respectively. The valuation allowance as of 30 September 2011 primarily relates to the tax loss carryforwards referenced above. If events warrant the reversal of the $28.6 valuation allowance, it would result in a reduction of tax expense. We believe it is more likely than not that future earnings will be sufficient to utilize our deferred tax asset, net of existing valuation allowance, at 30 September 2011.

Income tax payments, net of refunds, were $162.5 in 2011, $192.0 in 2010, and $124.5 in 2009.

Major differences between the United States federal statutory tax rate and the effective tax rate are:


(Percent of income before taxes)	2011			2010			2009
U.S. federal statutory tax rate		35.0	%		35.0	%		35.0	%
State taxes, net of federal benefit		.9			.3			1.1
Income from equity affiliates		(3.1	)		(3.0	)		(4.7	)
Foreign taxes and credits		(7.0	)		(8.3	)		(7.3	)
Domestic production activities		(.5	)		(.6	)		(1.1	)
Tax audit settlements and adjustments		(1.0	)		—			(.8	)
Donation of investments		—			(.4	)		—
Other		0.3			1.4			(.1	)
Effective Tax Rate		24.6	%		24.4	%		22.1	%

The following table summarizes the income of U.S. and foreign operations, before taxes:


	2011		2010		2009
Income from Continuing Operations before Taxes
United States		$625.5		$464.5		$374.3
Foreign		881.2		802.6		350.1
Income from equity affiliates		154.3		126.9		112.2
Total		$1,661.0		$1,394.0		$836.6

We do not pay or record U.S. income taxes on the undistributed earnings of our foreign subsidiaries and corporate joint ventures as long as those earnings are permanently reinvested in the companies that produced them. These cumulative undistributed earnings are included in retained earnings on the consolidated balance sheets and amounted to $4,051.6 at the end of 2011. An estimated $967.9 in U.S. income and foreign withholding taxes would be due if these earnings were remitted as dividends after payment of all deferred taxes.

At 30 September 2011 and 2010, we had $126.4 and $197.8 of unrecognized tax benefits, excluding interest and penalties, of which $93.1 and $108.0, respectively, would impact the effective tax rate if recognized. Interest and penalties related to unrecognized tax benefits are recorded as a component of income tax expense and totaled $(2.4) in 2011, $5.5 in 2010, and $2.5 in 2009. Our accrued balance for interest and penalties was $33.3 and $35.9 in 2011 and 2010, respectively.

In the third quarter of 2011, a U.S. Internal Revenue Service audit over tax years 2007 and 2008 was completed resulting in a decrease in unrecognized tax benefits of $36.0 and a favorable impact to current year earnings of $23.9. This included a tax benefit of $8.9 or $.04 per share, recognized in income from discontinued operations for fiscal year 2011, as it relates to the previously divested U.S. Healthcare business. Refer to Note 6, Discontinued Operations, for additional information on this divestiture.

A reconciliation of the beginning and ending amount of the unrecognized tax benefits is as follows:


Unrecognized Tax Benefits	2011			2010			2009
Balance at beginning of year		$197.8			$163.1			$154.7
Additions for tax positions of the current year		16.3			31.8			23.6
Additions for tax positions of prior years		5.7			12.9			36.3
Reductions for tax positions of prior years		(72.4	)		(1.0	)		(43.5	)
Settlements		(15.6	)		—			(4.9	)
Statute of limitations expiration		(4.8	)		(6.1	)		(5.4	)
Foreign currency translation		(0.6	)		(2.9	)		2.3
Balance at End of Year		$126.4			$197.8			$163.1

The unrecognized tax benefits include an amount related to certain transactions of a Spanish subsidiary for years 1991 and 1992, a period before we controlled this subsidiary. In March 2009 the Spanish appeals court (Audiencia Nacional) ruled in favor of our Spanish subsidiary. The Spanish government appealed this court decision to the Spanish Supreme Court. We did not reverse the liability accrued for these unrecognized tax benefits as this decision was appealed. We expect this case to be heard and decided within the next twelve months. As a result, we believe it is reasonably possible that the unrecognized tax benefits could be reduced by $60, including interest, within the next twelve months for this matter. If we prevail, this decrease would reduce income tax expense.

We are also currently under examination in a number of other tax jurisdictions, some of which may be resolved in the next twelve months. As a result, it is reasonably possible that a change in the unrecognized tax benefits may occur during the next twelve months. However, quantification of an estimated range cannot be made at this time.

We generally remain subject to examination in the following major tax jurisdictions for the years indicated below:


Major Tax Jurisdiction	Open Tax Years
North America
United States		2009–2011
Canada		2007–2011
Europe
United Kingdom		2008–2011
Germany		2006–2011
Netherlands		2005–2011
Poland		2005–2011
Spain		2009–2011
Asia
China		2006–2011
Taiwan		2006–2011
Korea		2006–2011

We have been challenged by the Spanish tax authorities over income tax deductions taken by certain of our Spanish subsidiaries during fiscal years 2005-2011. Although we continue to believe that all positions taken were compliant with applicable laws, in November 2011 we reached a settlement with the Spanish tax authorities for approximately € 40 (approximately $55) in resolution of all tax issues under examination. A significant portion of the settlement amount will be recorded as an increase to income tax expense in the first quarter of fiscal year 2012.

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph h
-Article 4

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 136, 172
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 43, 44, 45, 46, 47, 48, 49
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319

Supplemental Information

12 Months Ended

Sep. 30, 2011

Supplemental Information [Abstract]

Supplemental Information

22. SUPPLEMENTAL INFORMATION


Other Receivables and Current Assets
30 September	2011		2010
Deferred tax assets		$104.0		$124.1
Derivative instruments		30.8		42.6
Other receivables		103.3		120.7
Current capital lease receivables		47.1		39.1
Other		1.1		45.6
		$286.3		$372.1


Other Noncurrent Assets
30 September	2011		2010
Restricted cash		$77.2		$95.7
Derivative instruments		87.4		71.8
Other long-term receivables		43.7		61.6
Airgas investment		—		102.5
Deferred tax assets		123.8		85.5
Other		149.3		120.2
		$481.4		$537.3


Payables and Accrued Liabilities
30 September	2011		2010
Trade creditors		$800.0		$662.2
Customer advances		136.0		80.7
Accrued payroll and employee benefits		204.6		207.5
Pension benefits		33.8		238.8
Dividends payable		121.9		104.8
Outstanding payments in excess of certain cash balances		36.8		31.4
Accrued interest expense		51.3		52.9
Derivative instruments		40.6		31.9
Acquisition-related accrual		—		117.7
Liability related to purchase of shares from noncontrolling interests		51.0		—
Other		165.8		174.1
		$1,641.8		$1,702.0


Other Noncurrent Liabilities
30 September	2011		2010
Pension benefits		$914.8		$803.2
Postretirement benefits		101.0		107.2
Other employee benefits		100.5		103.5
Contingencies related to uncertain tax positions		154.1		228.8
Advance payments		46.2		69.6
Environmental liabilities		75.1		79.9
Liability related to purchase of shares from noncontrolling interests		—		42.0
Derivative instruments		3.2		22.3
Other		117.5		112.8
		$1,512.4		$1,569.3


Accumulated Other Comprehensive Income (Loss)
30 September	2011			2010			2009
Net unrealized holding gain on investments		$—			$20.7			$10.5
Net unrecognized (loss) on derivatives qualifying as hedges		(9.5	)		(21.9	)		(25.1	)
Foreign currency translation adjustments		(130.9	)		(44.1	)		(179.8	)
Pension and postretirement benefits		(1,113.0	)		(1,114.1	)		(967.4	)
		$(1,253.4	)		$(1,159.4	)		$(1,161.8	)



Other Income (Expense), Net
30 September	2011			2010			2009
Technology and royalty income		$24.3			$19.0			$19.5
Interest income		5.7			3.4			7.4
Foreign exchange		(8.6	)		4.0			(3.8	)
Sale of assets and investments		12.8			13.2			(3.0	)
Amortization of intangibles		(5.5	)		(8.4	)		(10.1	)
Government grants		9.5			—			—
Other		(1.0	)		7.5			13.0
		$37.2			$38.7			$23.0

Customer Bankruptcy and Asset Actions

On 6 January 2009, one of our customers, who principally receives product from the Tonnage Gases segment, began operating under Chapter 11 bankruptcy protection. As a result, we recognized a $22.2 ($13.9 after-tax, or $.07 per share) charge, primarily for the write-off of certain receivables during the third quarter of 2009. Sales and operating income associated with this customer are not material to the Tonnage Gases segment's results.

In April 2010, the customer emerged from bankruptcy proceedings. We received a final settlement in the amount of $22.4, of which $16.0 was applied against the remaining outstanding receivables. Income of $6.4 ($4.0 after-tax, or $.02 per share) was recognized for the recovery of certain receivables that had been previously written off. This amount was recorded as a gain and is reflected within customer bankruptcy on the consolidated income statement.

In the third quarter of 2009, we recorded a charge of $9.9 ($7.1 after-tax, or $.03 per share) for other asset actions which consisted of the closure of certain manufacturing facilities. This charge was reflected in cost of sales on the consolidated income statement.

Summary By Quarter

12 Months Ended

Sep. 30, 2011

Summary By Quarter [Abstract]

Summary By Quarter

23. SUMMARY BY QUARTER (UNAUDITED)

These tables summarize the unaudited results of operations for each quarter of 2011 and 2010:

2011

First

Second

Third

Fourth

Total

Sales

$2,391.7

$2,501.3

$2,577.8

$2,611.2

$10,082.0

Gross profit

671.2

698.8

695.7

701.0

2,766.7

Net loss on Airgas transaction

43.5

5.0

—

48.5

Operating income

360.6

419.5

416.8

425.3

1,622.2

Income from continuing operations- attributable to Air Products

268.6

304.3

317.6

324.8

1,215.3

Income from discontinued operations- attributable to Air Products

—

8.9

—

8.9

Net Income

275.9

311.5

335.0

339.1

1,261.5

Net Income attributable to Air Products

268.6

304.3

326.5

324.8

1,224.2

Basic EPS attributable to Air Products

Income from continuing operations

1.25

1.42

1.50

1.54

5.71

Income from discontinued operations

—

.04

—

0.04

Net income per common share

1.25

1.42

1.54

5.75

Diluted EPS attributable to Air Products

Income from continuing operations

1.23

1.39

1.46

1.51

5.59

Income from discontinued operations

—

.04

—

0.04

Net income per common share

1.23

1.39

1.50

1.51

5.63

Dividends declared per common share

.49

.58

2.23

Market price per common share:

High

91.39

95.00

96.00

98.00

Low

80.90

83.22

89.18

74.58


2010		First		Second		Third			Fourth			Total
Sales			$2,173.5		$2,249.0		$2,252.3			$2,351.2			$9,026.0
Gross profit			604.9		620.3		641.2			656.6			2,523.0
Net loss on Airgas Transaction			—		23.4		37.9			34.7			96.0
Customer bankruptcy			—		—		(1.8	)		(4.6	)		(6.4	)
Pension settlement			—		—		6.3			5.2			11.5
Operating income			345.0		340.6		336.4			367.0			1,389.0
Net income			256.8		258.4		261.3			278.0			1,054.5
Net income attributable to Air Products			251.8		252.0		253.2			272.1			1,029.1
Basic EPS attributable to Air Products
Net income per common share			1.19		1.19		1.19			1.28			4.85
Diluted EPS attributable to Air Products
Net income per common share			1.16		1.16		1.17			1.25			4.74
Dividends declared per common share			.45		.49		.49			.49			1.92
Market price per common share:	High		85.44		83.80		80.24			84.43
	Low		73.76		65.05		64.47			64.13

The entire disclosure for the quarterly financial data in the annual financial statements. The disclosure may include a tabular presentation of financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income or loss before extraordinary items and earnings per share data. It also includes an indication if the information in the note is unaudited, comments on the aggregate effect of year-end adjustments, and an explanation of matters or transactions that affect comparability or are pertinent to an understanding of the information furnished.

Business Segment And Geographic Information [Abstract]

Business Segment And Geographic Information

12 Months Ended

Sep. 30, 2011

Business Segment And Geographic Information

24. BUSINESS SEGMENT AND GEOGRAPHIC INFORMATION

Our segments are organized based on differences in product and/or type of customer. We have four business segments consisting of Merchant Gases, Tonnage Gases, Electronics and Performance Materials, and Equipment and Energy.

Merchant Gases

The Merchant Gases segment sells atmospheric gases such as oxygen, nitrogen, and argon (primarily recovered by the cryogenic distillation of air); process gases such as hydrogen and helium (purchased or refined from crude helium); and medical and specialty gases, along with certain services and equipment, throughout the world to customers in many industries, including those in metals, glass, chemical processing, food processing, healthcare, steel, general manufacturing, and petroleum and natural gas industries. There are four principal types of products: liquid bulk, packaged gases, small on-site plants, and healthcare products. Most merchant product is delivered via bulk supply, in liquid or gaseous form, by tanker or tube trailer. Smaller quantities of industrial, specialty, and medical gases are delivered in cylinders and dewars as "packaged gases," or through small on-sites (cryogenic or noncryogenic generators). Through our healthcare business, we offer respiratory therapies, home medical equipment, and infusion services, primarily in Europe. Electricity is the largest cost component in the production of atmospheric gases. Natural gas is also an energy source at a number of our Merchant Gases facilities. We mitigate energy and natural gas prices through pricing formulas and surcharges. The Merchant Gases segment also includes our share of the results of several joint ventures accounted for by the equity method. The largest of these joint ventures operate in Mexico, Italy, South Africa, India and Thailand. Merchant Gases competes worldwide against global industrial gas companies and several regional sellers. Competition in industrial gases is based primarily on price, reliability of supply, and the development of industrial gas applications. Competition in the healthcare business involves price, quality, service, and reliability of supply.

Tonnage Gases

Tonnage Gases provides hydrogen, carbon monoxide, nitrogen, oxygen, and syngas principally to the energy production and refining, chemical, and metallurgical industries worldwide. The Tonnage Gases segment also includes our Polyurethane Intermediates (PUI) business. The PUI business markets toluene diamine to customers under long-term contracts. For large-volume, or "tonnage" industrial gas users, we either construct a gas plant adjacent to or near the customer's facility—hence the term "on-site"—or deliver product through a pipeline from a nearby location. We are the world's largest provider of hydrogen, which is used by refiners to lower the sulfur content of gasoline and diesel fuels to reduce smog and ozone depletion. Electricity is the largest cost component in the production of atmospheric gases, and natural gas is the principal raw material for hydrogen, carbon monoxide, and syngas production. We mitigate energy and natural gas price changes through our long-term cost pass-through type contracts. Tonnage Gases competes against global industrial gas companies, as well as regional competitors. Competition is based primarily on price, reliability of supply, the development of applications that use industrial gases and, in some cases, provision of other services or products such as power and steam generation. We also derive a competitive advantage in regions where we have pipeline networks, which enable us to provide reliable and economic supply of products to customers.

Electronics and Performance Materials

The Electronics and Performance Materials segment employs applications technology to provide solutions to a broad range of global industries through expertise in chemical synthesis, analytical technology, process engineering, and surface science. This segment provides specialty and tonnage gases, specialty chemicals, services, and equipment to the electronics industry for the manufacture of silicon and compound semiconductors, LCD and other displays, and photovoltaic devices. The segment also provides performance chemical solutions for the coatings, inks, adhesives, civil engineering, personal care, institutional and industrial cleaning, mining, oil field, polyurethane, and other industries. The Electronics and Performance Materials segment faces competition on a product-by-product basis against competitors ranging from niche suppliers with a single product to larger and more vertically integrated companies. Competition is principally conducted on the basis of price, quality, product performance, reliability of product supply, technical innovation, service, and global infrastructure.

Equipment and Energy

The Equipment and Energy segment designs and manufactures cryogenic and gas processing equipment for air separation, hydrocarbon recovery and purification, natural gas liquefaction (LNG), and helium distribution, and serves energy markets in a variety of ways. Equipment is sold worldwide to customers in a variety of industries, including chemical and petrochemical manufacturing, oil and gas recovery and processing, and steel and primary metals processing. Energy markets are served through our operation and partial ownership of cogeneration and flue gas desulfurization facilities. In addition, we are developing hydrogen as an energy carrier, waste-to-energy facilities to produce electricity, carbon capture technologies for a variety of industrial and power applications, and oxygen-based technologies to serve energy markets in the future. Equipment and Energy competes with a great number of firms for all of its offerings except LNG heat exchangers, for which there are fewer competitors due to the limited market size and proprietary technologies. Competition is based primarily on technological performance, service, technical know-how, price, and performance guarantees.

Other

Other operating income (loss) includes other expense and income that cannot be directly associated with the business segments, including foreign exchange gains and losses, and costs previously allocated to businesses now reported as discontinued operations. Also included are LIFO inventory adjustments, as the business segments use FIFO and the LIFO pool adjustments are not allocated to the business segments. Corporate general and administrative costs and research and development costs are fully allocated to the business segments.

Other assets include cash, restricted cash, deferred tax assets, pension assets, financial instruments, and corporate assets previously allocated to businesses now reported as discontinued operations.

Customers

We do not have a homogeneous customer base or end market, and no single customer accounts for more than 10% of our consolidated revenues.

Accounting Policies

The accounting policies of the segments are the same as those described in Note 1, Major Accounting Policies. We evaluate the performance of segments based upon reported segment operating income. Operating income of the business segments includes general corporate expenses. Intersegment sales are not material and are recorded at selling prices that approximate market prices. Equipment manufactured for our industrial gas business is generally transferred at cost and not reflected as an intersegment sale.

Business Segments


Sales to External Customers	2011		2010		2009
Merchant Gases		$4,073.2		$3,718.3		$3,610.6
Tonnage Gases		3,316.7		2,930.8		2,573.6
Electronics and Performance Materials		2,291.5		1,904.7		1,582.2
Equipment and Energy		400.6		472.2		489.8
Segment and Consolidated Totals		$10,082.0		$9,026.0		$8,256.2


Operating Income	2011			2010			2009
Merchant Gases		$759.8			$729.4			$661.2
Tonnage Gases		503.1			444.2			399.6
Electronics and Performance Materials		361.1			251.8			101.6
Equipment and Energy		62.8			67.3			42.2
Segment total		$1,686.8			$1,492.7			$1,204.6
Global cost reduction plan ^(A)		—			—			(298.2	)
Net loss on Airgas transaction		(48.5	)		(96.0	)		—
Customer bankruptcy and asset actions		—			6.4			(32.1	)
Pension settlement		—			(11.5	)		(10.7	)
Other		(16.1	)		(2.6	)		(17.3	)
Consolidated Total		$1,622.2			$1,389.0			$846.3

^(A) Information about how this charge related to the businesses at the segment level is discussed in Note 5, Global Cost Reduction Plan.


Depreciation and Amortization	2011		2010		2009
Merchant Gases		$396.6		$377.9		$372.3
Tonnage Gases		310.9		303.0		272.2
Electronics and Performance Materials		154.9		169.0		178.2
Equipment and Energy		11.0		12.7		15.9
Segment total		$873.4		$862.6		$838.6
Other		.5		.8		1.7
Consolidated Total		$873.9		$863.4		$840.3


Equity Affiliates' Income	2011		2010		2009
Merchant Gases		$134.6		$104.3		$98.3
Other segments		19.7		22.6		13.9
Segment and Consolidated Totals		$154.3		$126.9		$112.2


Total Assets	2011		2010		2009
Merchant Gases		$5,892.1		$5,824.7		$5,630.8
Tonnage Gases		4,581.8		3,958.1		3,672.0
Electronics and Performance Materials		2,560.7		2,336.1		2,299.1
Equipment and Energy		357.5		362.7		333.8
Segment total		$13,392.1		$12,481.6		$11,935.7
Other		898.6		1,024.3		1,093.4
Consolidated Total		$14,290.7		$13,505.9		$13,029.1


Investment in and Advances to Equity Affiliates	2011		2010		2009
Merchant Gases		$800.4		$749.4		$713.8
Other segments		211.2		163.4		154.3
Segment and Consolidated Totals		$1,011.6		$912.8		$868.1


Identifiable Assets	2011		2010		2009
Merchant Gases		$5,091.7		$5,075.3		$4,917.0
Tonnage Gases		4,464.3		3,876.4		3,597.8
Electronics and Performance Materials		2,488.9		2,275.8		2,249.5
Equipment and Energy		335.6		341.3		303.3
Segment total		$12,380.5		$11,568.8		$11,067.6
Other		898.6		1,024.3		1,093.4
Consolidated Total		$13,279.1		$12,593.1		$12,161.0


Expenditures for Long Lived Assets^(A)	2011		2010		2009
Merchant Gases		$432.9		$311.5		$510.8
Tonnage Gases		669.9		557.2		532.1
Electronics and Performance Materials		196.0		139.0		125.4
Equipment and Energy		45.9		22.4		9.8
Segment total		$1,344.7		$1,030.1		$1,178.1
Other		7.0		.8		1.0
Consolidated Total		$1,351.7		$1,030.9		$1,179.1

^(A) Includes plant and equipment

Geographic Information


Sales to External Customers	2011		2010		2009
United States		$4,423.8		$4,110.2		$3,779.8
Canada		297.0		260.3		238.6
Europe		3,002.1		2,819.7		2,765.1
Asia		2,122.1		1,621.0		1,294.2
Latin America/other		237.0		214.8		178.5
		$10,082.0		$9,026.0		$8,256.2


Long Lived Assets^(A)	2011		2010		2009
United States		$3,099.2		$2,968.0		$2,987.1
Canada		566.1		608.8		535.2
Europe		1,833.7		1,711.1		1,766.8
Asia		1,786.2		1,658.4		1,462.3
Latin America/other		126.8		105.0		108.2
		$7,412.0		$7,051.3		$6,859.6

^(A)Long lived assets include plant and equipment, net.

Geographic information is based on country of origin. Included in United States revenues are export sales to third party customers of $589.7 in 2011, $570.5 in 2010, and $510.2 in 2009. The Europe segment operates principally in Belgium, France, Germany, the Netherlands, Poland, the U.K., and Spain. The Asia segment operates principally in China, Japan, Korea, and Taiwan.

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 131
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8981-108599

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
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-Paragraph 35
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8984-108599

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
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-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8538-108599

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
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-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8906-108599

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
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-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 12: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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Schedule II - Valuation And Qualifying Accounts [Abstract]

Schedule II - Valuation And Qualifying Accounts

12 Months Ended

Sep. 30, 2011

Schedule II - Valuation And Qualifying Accounts

AIR PRODUCTS AND CHEMICALS, INC. AND SUBSIDIARIES

SCHEDULE II–VALUATION AND QUALIFYING ACCOUNTS

For the Years Ended 30 September 2011, 2010, and 2009


			Additions						Other Changes Increase (Decrease)
	Balance at Beginning of Period		Charged to Expense			Charged to Other Accounts			Cumulative Translation Adjustment			Other ^(A)			Balance at End of Period

						(in millions of dollars)

Year Ended 30 September 2011
Allowance for doubtful accounts		$99		$16			$7			$(1	)		$(23	)		$98
Allowance for deferred tax assets		55		(27	)		0			0			0			28

Year Ended 30 September 2010
Allowance for doubtful accounts		$65		$4			$25			$—			$5			$99
Allowance for deferred tax assets		32		26			(2	)		(1	)		—			55

Year Ended 30 September 2009
Allowance for doubtful accounts		$36		$24			$14			$1			$(10	)		$65
Allowance for deferred tax assets		61		(30	)		—			1			—			32

Note:

^(A)

Primarily write-offs of uncollectible trade receivable accounts and tax valuation allowances.

Major Accounting Policies (Policy)

12 Months Ended

Sep. 30, 2011

Major Accounting Policies [Abstract]

Consolidation Principles

Consolidation Principles

Estimates And Assumptions

Estimates and Assumptions

Revenue Recognition

Revenue Recognition

Amounts billed for shipping and handling fees are classified as sales in the consolidated income statements.

Cost Of Sales

Cost of Sales

Depreciation

Depreciation

Selling And Administrative

Selling and Administrative

The principal components of selling and administrative expenses are salaries, advertising, and promotional costs.

Postemployment Benefits

Postemployment Benefits

Financial Instruments

Financial Instruments

The following details the accounting treatment of our cash flow, fair value, net investment, and non-designated hedges:

•

Changes in the fair value of a derivative that is not designated as a hedge are recorded immediately in earnings.

Foreign Currency

Foreign Currency

Since we do business in many foreign countries, fluctuations in currency exchange rates affect our financial position and results of operations.

Environmental Expenditures

Environmental Expenditures

The accruals for environmental liabilities are reflected in the consolidated balance sheets, primarily as part of other noncurrent liabilities.

Litigation

Litigation

Share-Based Compensation

Share-Based Compensation

Income Taxes

Income Taxes

Cash And Cash Items

Cash and Cash Items

Cash and cash items include cash, time deposits, and certificates of deposit acquired with an original maturity of three months or less.

Trade Receivables, Net

<div> Trade Receivables, net Trade receivables are comprised of amounts owed to us through our operating activities and are presented net of allowances for doubtful accounts. The allowances for doubtful accounts represent estimated uncollectible receivables associated with potential customer defaults on contractual obligations. A provision for customer defaults is made on a general formula basis when it is determined that the risk of some default is probable and estimable but cannot yet be associated with specific customers. The assessment of the likelihood of customer defaults is based on various factors, including the length of time the receivables are past due, historical experience, and existing economic conditions. The allowances also include amounts for certain customers where a risk of default has been specifically identified considering factors such as the financial condition of the customer and customer disputes over contractual terms and conditions. Allowances for doubtful accounts were $98.0 and $99.3 as of fiscal year end 2011 and 2010, respectively. Provisions to the allowances for doubtful accounts charged against income were $23.4, $29.5, and $37.8 in 2011, 2010, and 2009, respectively. </div>

Inventories

Inventories

At the business segment level, inventories are recorded at FIFO and the LIFO pool adjustments are not allocated to the business segments.

Equity Investments

Equity Investments

Plant And Equipment

Plant and Equipment

Computer Software

Computer Software

Capitalized Interest

Capitalized Interest

Impairment Of Long-Lived Assets

Impairment of Long-Lived Assets

Government Grants

Government Grants

Asset Retirement Obligations

Asset Retirement Obligations

Goodwill

Goodwill

Intangible Assets

Intangible Assets

Restricted Cash

Restricted Cash

Pension Benefits

Pension Benefits

Global Cost Reduction Plan (Tables)

12 Months Ended

Sep. 30, 2011

Global Cost Reduction Plan [Abstract]

Global Cost Reduction Plan As It Relates To Businesses At Segment Level


	Severance and Other Benefits		Asset Impairments/ Other Costs		Total
Merchant Gases		$127.5		$7.2	$134.7
Tonnage Gases		14.2		—	14.2
Electronics and Performance Materials		30.6		58.9	89.5
Equipment and Energy		37.7		22.1	59.8
2009 Charge		$210.0		$88.2	$298.2

Table Of Changes For The Global Cost Reduction Plan


	Severance and Other Benefits			Asset Impairments/ Other Costs			Total
First quarter 2009 charge		$120.0			$54.2			$174.2
Third quarter 2009 charge		90.0			34.0			124.0
Environmental charge ^(A)		—			(16.0	)		(16.0	)
Noncash items		(33.8	) ^(B)		(66.1	)		(99.9	)
Cash expenditures		(75.3	)		(.9	)		(76.2	)
Currency translation adjustment		4.3			—			4.3
30 September 2009		$105.2			$5.2			$110.4
Adjustment to charge		7.6			(6.6	)		1.0
Environmental charge ^(A)		—			1.5			1.5
Noncash items		(2.8	)^(B)		.1			(2.7	)
Cash expenditures		(102.8	)		(.2	)		(103.0	)
Currency translation adjustment		(5.3	)		—			(5.3	)
30 September 2010		$1.9			$—			$1.9
Cash expenditures		(1.9	)		$—			(1.9	)
30 September 2011		$—			$—			$—

^(A)

Reflected in accrual for environmental obligations. See Note 16, Commitments and Contingencies.

^(B)

Primarily pension-related costs, which are reflected in the accrual for pension benefits.

Discontinued Operations (Tables)

12 Months Ended

Sep. 30, 2011

Discontinued Operations [Abstract]

Table Of Operating Results Of Discontinued Operations


	2011		2010		2009
Sales		$—		$—		$125.2

Loss before taxes		$—		$—		$(5.5	)
Income tax benefit		8.9		—		2.1
Income (Loss) from operations of discontinued operations		8.9		—		(3.4	)
Loss on sale of businesses and impairment/write-down to estimated net realizable value, net of tax		—		—		(5.2	)
Income (Loss) from Discontinued Operations, net of tax		$8.9		$—		$(8.6	)

Inventories (Tables)

12 Months Ended

Sep. 30, 2011

Inventories [Abstract]

Schedule Of Inventories


30 September	2011			2010
Inventories at FIFO cost
Finished goods		$489.1			$405.3
Work in process		29.9			29.3
Raw materials, supplies and other		258.2			208.2
		777.2			642.8
Less: Excess of FIFO cost over LIFO cost		(95.8	)		(71.2	)
		$681.4			$571.6

Summarized Financial Information Of Equity Affiliates (Tables)

12 Months Ended

Sep. 30, 2011

Summarized Financial Information Of Equity Affiliates [Abstract]

Table Of Summarized Financial Information Of Equity Affiliates


	2011		2010		2009
Current assets		$1,247.7		$1,133.4
Noncurrent assets		2,189.8		2,071.6
Current liabilities		742.8		788.9
Noncurrent liabilities		613.6		559.9
Net sales		2,650.5		2,293.4		2,129.7
Sales less cost of sales		987.2		964.4		874.4
Operating income		537.0		454.5		404.7
Net income		351.3		293.0		257.7

Plant And Equipment (Tables)

12 Months Ended

Sep. 30, 2011

Plant And Equipment [Abstract]

Schedule Of Major Classes Of Plant And Equipment At Cost

30 September

Average
Useful Life

2011

2010

Land

$173.2

$172.3

Buildings

30 years

919.5

886.2

Production facilities ^(A)

Merchant Gases

15 years

3,256.4

3,346.3

Tonnage Gases

15 to 20 years

6,266.5

5,691.4

Electronics and Performance Materials

10 to 15 years

1,862.3

2,061.2

Equipment and Energy

5 to 20 years

165.9

296.5

Total production facilities

11,551.1

11,395.4

Distribution equipment ^(B)

5 to 25 years

3,092.4

2,918.6

Other machinery and equipment

10 to 25 years

252.3

248.0

Construction in progress

1,238.6

689.2

Plant and equipment, at cost

17,227.1

16,309.7

Less accumulated depreciation

9,815.1

9,258.4

Plant and equipment, net

$7,412.0

$7,051.3

^(A)

Depreciable lives of production facilities related to long-term customer supply contracts are matched to the contract lives.

^(B)

Goodwill And Intangible Assets (Tables)

12 Months Ended

Sep. 30, 2011

Goodwill And Intangible Assets [Abstract]

Schedule Of Goodwill By Segment


30 September	2010		Acquisitions and Adjustments		Currency Translation and Other			2011
Merchant Gases		$595.7		$4.9		$(25.2	)		$575.4
Tonnage Gases		15.5		—		(1.4	)		14.1
Electronics and Performance Materials		303.4		—		(.5	)		302.9
		$914.6		$4.9		$(27.1	)		$892.4


30 September	2009		Acquisitions and Adjustments			Currency Translation and Other			2010
Merchant Gases		$601.3		$19.1			$(24.7	)		$595.7
Tonnage Gases		16.3		(.9	)		.1			15.5
Electronics and Performance Materials		298.4		.3			4.7			303.4
		$916.0		$18.5			$(19.9	)		$914.6

Schedule Of Acquired Intangible Assets


			30 September 2011							30 September 2010
	Average Amortization Period		Gross		Accumulated Amortization			Net		Gross		Accumulated Amortization			Net
Customer relationships		11.6 years		$271.2		$(74.3	)		$196.9		$283.3		$(62.7	)		$220.6
Patents and technology		11.9 years		98.0		(76.8	)		21.2		99.0		(73.6	)		25.4
Other		30.3 years		78.9		(36.3	)		42.6		73.3		(33.6	)		39.7
				$448.1		$(187.4	)		$260.7		$455.6		$(169.9	)		$285.7

Schedule Of Projected Annual Amortization Expense For Intangible Assets


2012			$21.1
2013			20.4
2014			19.8
2015			19.5
2016			17.8
Thereafter			162.1
			$260.7

Tabular disclosure of goodwill by reportable segment and in total. Disclosure details may include, but are not limited to, the carrying amount of goodwill, goodwill acquired during the year, goodwill impairment losses recognized, goodwill written-off due to the sale of a business unit, goodwill not yet allocated, and any other changes to goodwill.

Schedule Of Minimum Lease Payments Due

Leases (Tables)

12 Months Ended

Sep. 30, 2011

Leases [Abstract]


	Capital Leases		Operating Leases
2012		$2.8		$53.3
2013		1.6		43.7
2014		1.3		34.6
2015		1.1		28.9
2016		1.0		24.4
Thereafter		1.3		35.4
		$9.1		$220.3

Schedule Of Lease Receivables


30 September	2011			2010
Gross minimum lease payments receivable		$1,663.2			$1,195.5
Unearned interest income		(573.3	)		(386.0	)
Lease Receivables, net		$1,089.9			$809.5

Schedule Of Minimum Lease Payment Collections As Lessor


2012			$120.9
2013			130.8
2014			129.2
2015			127.1
2016			125.2
Thereafter			1,030.0
			$1,663.2

The entire disclosure for lessee entity's leasing arrangements including, but not limited to, all of the following: (a.) The basis on which contingent rental payments are determined, (b.) The existence and terms of renewal or purchase options and escalation clauses, (c.) Restrictions imposed by lease agreements, such as those concerning dividends, additional debt, and further leasing.

The entire disclosure for lessor entity's leasing arrangements for operating, capital and leveraged leases.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 13
-Paragraph 23
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 10
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Name Accounting Standards Codification
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-Name Accounting Standards Codification
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Reference 7: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Schedule Of Outstanding Currency Price Risk Management Instruments

Financial Instruments (Tables)

12 Months Ended

Sep. 30, 2011

Financial Instruments [Abstract]


	2011				2010
30 September	US$ Notional		Years Average Maturity		US$ Notional		Years Average Maturity
Forward Exchange Contracts
Cash flow hedges		$1,512.1		.4		$1,605.5		.5
Net investment hedges		635.8		2.0		648.5		3.0
Not designated		226.3		.1		373.6		.2
Total Forward Exchange Contracts		$2,374.2		.8		$2,627.6		1.1

Schedule Of Interest Rate Swaps And Cross Currency Interest Rate Swaps

30 September 2011

30 September 2010

US$
Notional

Pay %

Average
Receive %

Years
Average
Maturity

US$
Notional

Pay %

Average
Receive %

Years
Average
Maturity

Interest rate swaps (fair value hedge)

$583.9

LIBOR

3.38%

4.5

$617.0

LIBOR

3.66%

3.8

Cross currency interest rate swaps (net investment hedge)

$32.2

5.54%

5.48%

2.5

$32.2

5.54%

5.48%

3.5

Interest rate swaps (cash flow hedge)

$300.0

2.33%

LIBOR

$—

—

Fair Value Of Derivative Instruments

30 September

2011

2010

2011

2010

Balance Sheet
Location

Fair

Value

Fair

Value

Balance Sheet
Location

Fair

Value

Fair

Value

Derivatives Designated as Hedging Instruments

Forward exchange contracts

Other receivables

$22.0

$29.8

Accrued liabilities

$33.0

$22.3

Interest rate swap contracts

Other receivables

5.8

6.6

Accrued liabilities

3.8

1.3

Forward exchange contracts

Other noncurrent
assets

45.0

38.7

Other noncurrent
liabilities

1.0

19.9

Interest rate swap contracts

Other noncurrent
assets

42.4

33.1

Other noncurrent
liabilities

2.2

2.4

Total Derivatives Designated as Hedging Instruments

$115.2

$108.2

$40.0

$45.9

Derivatives Not Designated as Hedging Instruments

Forward exchange contracts

Other receivables

$3.0

$6.2

Accrued liabilities

$3.8

$8.3

Total Derivatives

$118.2

$114.4

$43.8

$54.2

Schedule Of Gain/Loss Related To Derivative Instruments

	Year Ended 30 September
		Forward Exchange Contracts						Foreign Currency Debt				Other^(A)						Total
		2011			2010			2011		2010		2011			2010			2011			2010
Cash Flow Hedges, net of tax Net gain (loss) recognized in OCI (effective portion)			$6.4			$(11.3	)		$—		$—		$(5.6	)		$(.3	)		$.8			$(11.6	)
Net (gain) loss reclassified from OCI to sales/cost of sales (effective portion)			8.4			9.6			—		—		—			(2.0	)		8.4			7.6
Net loss reclassified from OCI to other income (effective portion)			1.2			6.2			—		—		—			—			1.2			6.2
Net loss reclassified from OCI to interest expense (effective portion)			—			—			—		—		1.2			1.2			1.2			1.2
Net (gain) loss reclassified from OCI to other income (ineffective portion)			.7			(.2	)		—		—		—			—			.7			(.2	)
Fair Value Hedges
Net gain recognized in interest expense^(B)			$—			$—			$—		$—		$9.4			$19.7			$9.4			$19.7
Net Investment Hedges, net of tax Net gain recognized in OCI			$5.7			$58.4			$16.9		$109.8		$—			$.4			$22.6			$168.6
Derivatives Not Designated as Hedging Instruments Net (loss) recognized in other income^(C)			$(5.8	)		$(24.7	)		$—		$—		$—			$—			$(5.8	)		$(24.7	)

^(A)

Other includes the impact on other comprehensive income (OCI) and earnings primarily related to interest rate swaps.

^(B)

The impact of fair value hedges noted above was largely offset by gains and losses resulting from the impact of changes in related interest rates on recognized outstanding debt.

^(C)

Tabular disclosure of the location and amount of gains and losses reported in the statement of financial performance, or when applicable, the statement of financial position. For example, (a) gains and losses recognized in the income statement on derivative instruments designated and qualifying as hedging instruments in fair value hedges and related hedged items designated and qualifying in fair value hedges and (b) gains and losses initially recognized in other comprehensive income on derivative instruments designated and qualifying as cash flow hedges.

Schedule Of Carrying Values And Fair Values Of Financial Instruments

Fair Value Measurements (Tables)

12 Months Ended

Sep. 30, 2011

Fair Value Measurements [Abstract]


30 September	2011				2010
	Carrying Value		Fair Value		Carrying Value		Fair Value
Assets
Derivatives
Forward exchange contracts		$70.0		$70.0		$74.7		$74.7
Interest rate swap contracts		48.2		48.2		39.7		39.7
Available-for-sale securities
Airgas investment		—		—		102.5		102.5
Other investments		—		—		1.1		1.1
Liabilities
Derivatives
Forward exchange contracts		$37.8		$37.8		$50.5		$50.5
Interest rate swap contracts		6.0		6.0		3.7		3.7
Long-term debt, including current portion		3,999.7		4,284.5		3,842.3		4,146.4
Other liabilities		51.0		51.0		42.0		42.0

Schedule Of Fair Value Of Assets And Liabilities

<table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="98%" align="center"> <tr><td width="41%"> </td> <td valign="bottom" width="2%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="2%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="2%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="2%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="2%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="2%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="2%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="2%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="14" align="center">30 September 2011</td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="14" align="center">30 September 2010</td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td></tr> <tr><td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="right">Total</td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="right">Level 1</td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="right">Level 2</td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="right">Level 3</td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="right">Total</td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="right">Level 1</td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="right">Level 2</td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="right">Level 3</td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Assets at Fair Value</td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr> <tr><td valign="top"> Derivatives</td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Forward exchange contracts</td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">$70.0</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">$—</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">$70.0</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">$—</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">$74.7</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">$—</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">$74.7</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">$—</td> <td valign="bottom" nowrap="nowrap"> </td></tr> <tr><td valign="top"> Interest rate swap contracts</td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">48.2</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">48.2</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">39.7</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">39.7</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—</td> <td valign="bottom" nowrap="nowrap"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Available-for-sale securities</td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr> <tr><td valign="top"> Airgas investment</td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">102.5</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">102.5</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—</td> <td valign="bottom" nowrap="nowrap"> </td></tr> <tr bgcolor="#cceeff"><td style="border-bottom: #000000 1px solid;" valign="top"> Other investments</td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right">—</td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right">—</td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right">—</td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right">—</td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right">1.1</td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right">1.1</td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right">—</td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right">—</td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> </td></tr> <tr><td style="border-bottom: #000000 1px solid;" valign="top"> Total Assets at Fair Value</td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right">$118.2</td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right">$—</td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right">$118.2</td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right">$—</td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right">$218.0</td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right">$103.6</td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right">$114.4</td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right">$—</td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> </td></tr> <tr><td height="5"> </td> <td height="5" colspan="4"> </td> <td height="5" colspan="4"> </td> <td height="5" colspan="4"> </td> <td height="5" colspan="4"> </td> <td height="5" colspan="4"> </td> <td height="5" colspan="4"> </td> <td height="5" colspan="4"> </td> <td height="5" colspan="4"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Liabilities at Fair Value</td> <td valign="bottom"> </td> <td valign="top"> </td> <td valign="top"> </td> <td valign="top"> </td> <td valign="bottom"> </td> <td valign="top"> </td> <td valign="top"> </td> <td valign="top"> </td> <td valign="bottom"> </td> <td valign="top"> </td> <td valign="top"> </td> <td valign="top"> </td> <td valign="bottom"> </td> <td valign="top"> </td> <td valign="top"> </td> <td valign="top"> </td> <td valign="bottom"> </td> <td valign="top"> </td> <td valign="top"> </td> <td valign="top"> </td> <td valign="bottom"> </td> <td valign="top"> </td> <td valign="top"> </td> <td valign="top"> </td> <td valign="bottom"> </td> <td valign="top"> </td> <td valign="top"> </td> <td valign="top"> </td> <td valign="bottom"> </td> <td valign="top"> </td> <td valign="top"> </td> <td valign="top"> </td></tr> <tr><td valign="top"> Derivatives</td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Forward exchange contracts</td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">$37.8</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">$—</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">$37.8</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">$—</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">$50.5</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">$—</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">$50.5</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">$—</td> <td valign="bottom" nowrap="nowrap"> </td></tr> <tr><td valign="top"> Interest rate swap contracts</td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">6.0</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">6.0</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">3.7</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">3.7</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—</td> <td valign="bottom" nowrap="nowrap"> </td></tr> <tr bgcolor="#cceeff"><td style="border-bottom: #000000 1px solid;" valign="top"> Other liabilities</td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right">51.0</td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right">—</td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right">—</td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right">51.0</td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right">42.0</td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right">—</td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right">—</td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right">42.0</td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> </td></tr> <tr><td style="border-bottom: #000000 1px solid;" valign="top"> Total Liabilities at Fair Value</td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right">$94.8</td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right">$—</td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right">$43.8</td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right">$51.0</td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right">$96.2</td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right">$—</td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right">$54.2</td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right">$42.0</td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> </td></tr></table>

Schedule Of Changes In Fair Value Of Other Liabilities


Balance at 30 September 2010	$42.0
Expense included in interest expense	3.4
Currency translation adjustment	(.5	)
Adjustment to initial estimate (see Note 19, Noncontrolling Interests)	6.1
Balance at 30 September 2011	$51.0

This element represents the disclosure related to assets and liabilities by class, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring and/or nonrecurring basis in periods after initial recognition (for example, impaired assets). The disclosures that may be required or desired include: (a) the fair value measurements recorded during the period and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets or liabilities (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). Where the quoted price in an active market for the identical liability is not available, the Level 1 input is the quoted price of an identical liability when traded as an asset.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 33
-Subparagraph a, b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 6
-Footnote 4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a),(b)
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19207-110258

Reference 5: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19190-110258

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-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (a),(b)
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19296-110258

Tabular disclosure of the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments, assets, and liabilities. Such certain disclosures about the financial instruments, assets, and liabilities include: (1) the fair value of the required items together with their carrying amounts (as appropriate) and (2) the methodology and assumptions used in developing such estimates of fair value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 10
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 14
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15
-Subparagraph b-d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32
-Subparagraph a, c(1), c(2), c(3), d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 159
-Paragraph 18
-Subparagraph c(2), d, e, f
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 159
-Paragraph 19
-Subparagraph a, b, c(1), d(1)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6947722&loc=d3e13433-108611

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-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=6947722&loc=d3e13467-108611

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-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=6947722&loc=d3e13476-108611

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-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14172-108612

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-Name Accounting Standards Codification
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-Paragraph 2
-Subparagraph (a)
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
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-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6447952&loc=d3e13220-108610

Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issuances, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability.

Schedule Of Short-Term Borrowings

Debt (Tables)

12 Months Ended

Sep. 30, 2011

Debt [Abstract]

Schedule Of Total Debt


30 September	2011		2010
Short-term borrowings		$562.5		$286.0
Current portion of long-term debt		72.2		182.5
Long-term debt		3,927.5		3,659.8
Total Debt		$4,562.2		$4,128.3



Short-term Borrowings

30 September	2011		2010
Bank obligations		$562.5		$225.1
Short-term borrowings associated with SAGA acquisition		—		60.9
Total Short-term Borrowings		$562.5		$286.0

Schedule Of Long-Term Debt


30 September	Maturities		2011			2010
Payable in U.S. Dollars
Debentures
8.75%		2021		$18.4			$18.4
Medium-term Notes
Weighted average rate
Series D 7.3%		2016		32.1			63.1
Series E 7.6%		2026		17.2			17.2
Series G 4.1%		2011		—			125.0
Senior Notes
Note 4.15%		2013		300.0			300.0
Note 2.0%		2016		350.0			—
Note 4.375%		2019		400.0			400.0
Other
Weighted average rate
Variable-rate industrial revenue bonds 0.1%		2016 to 2050		975.1			975.1
Other 2.1%		2012 to 2019		58.5			55.1
Payable in Other Currencies
Eurobonds 4.25%		2012		401.6			408.1
Eurobonds 3.75%		2014		401.6			408.1
Eurobonds 3.875%		2015		401.6			408.1
Eurobonds 4.625%		2017		401.6			408.1
Other 5.1%		2012 to 2018		241.9			255.3
Capital Lease Obligations
United States 5.0%		2012 to 2018		4.8			5.5
Foreign 3.9%		2013 to 2017		2.7			4.3
Less: Unamortized discount				(7.4	)		(9.1	)
				3,999.7			3,842.3
Less: Current portion				(72.2	)		(182.5	)
Total Long-term Debt				$3,927.5			$3,659.8

Schedule Of Maturities Of Long-Term Debt


2012			$473.8
2013			333.9
2014			475.7
2015			479.2
2016			402.0
Thereafter			1,835.1
			$3,999.7

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 22
-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

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-Name Accounting Standards Codification
-Topic 835
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-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399

Reference 4: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Name Accounting Standards Codification
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-Paragraph 6
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-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
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-Paragraph 8
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Reference 8: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
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-Paragraph 7
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Reference 9: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 835
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-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(e),(f))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Actual And Target Allocations

Retirement Benefits (Tables)

12 Months Ended

Sep. 30, 2011

2011 Target Allocation

2011 Actual Allocation

2010 Actual Allocation

Asset Category

U.S.

International

U.S.

International

U.S.

International

Equity securities

60–80%

53–62%

66%

53%

70%

55%

Debt securities

20–30%

35–45%

28%

43%

25%

38%

Real estate/other

0–10%

1–3%

Cash

—

Total

100%

100%

Summary Of Pension Plan Assets Measured At Fair Value


	30 September 2011								30 September 2010
	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
U.S. Qualified Pension Plans
Cash and cash equivalents		$9.2		$9.2		$—		$—		$8.3		$8.3		$—		$—
Equity securities		537.2		537.2		—		—		551.1		551.1		—		—
Equity mutual funds		138.3		138.3		—		—		87.4		87.4		—		—
Equity pooled funds		543.9		—		543.9		—		573.1		—		573.1		—
Fixed income:
Bonds (government and corporate)		18.7		—		18.7		—		17.8		—		17.8		—
Mortgage and asset-backed securities		23.5		—		23.5		—		31.7		—		31.7		—
Mutual funds		37.8		37.8		—		—		50.6		50.6		—		—
Pooled funds		434.4		—		434.4		—		330.2		—		330.2		—
Real estate pooled funds		101.3		—		—		101.3		77.0		—		—		77.0
Total U.S. Qualified Pension Plans		$1,844.3		$722.5		$1,020.5		$101.3		$1,727.2		$697.4		$952.8		$77.0

International Pension Plans
Cash and cash equivalents		$18.0		$18.0		$—		$—		$46.5		$46.5		$—		$—
Equity pooled funds		524.0		—		524.0		—		538.3		—		538.3		—
Fixed income pooled funds		340.8		—		340.8		—		297.6		—		297.6		—
Other pooled funds		25.0		—		8.3		16.7		25.9		—		8.0		17.9
Insurance contracts		71.6		—		—		71.6		76.1		—		—		76.1
Total International Pension Plans		$979.4		$18.0		$873.1		$88.3		$984.4		$46.5		$843.9		$94.0

Summary Of Changes In Fair Value Of Pension Plan Assets Classified As Level 3


	Real Estate Pooled Funds		Other Pooled Funds			Insurance Contracts			Total
30 September 2009		$72.7		$13.0			$66.7			$152.4
Actual return on plan assets:
Assets held at end of year		4.3		.5			5.1			9.9
Assets sold during the period		—		.2			—			.2
Purchases, sales, and settlements, net		—		4.2			4.3			8.5
30 September 2010		$77.0		$17.9			$76.1			$171.0
Actual return on plan assets:
Assets held at end of year		15.3		(.5	)		.3			15.1
Assets sold during the period		—		.4			—			.4
Purchases, sales, and settlements, net		9.0		(1.1	)		(4.8	)		3.1
30 September 2011		$101.3		$16.7			$71.6			$189.6

Summary Of Pension Plans Where The Benefit Liability Exceeds The Value Of Plan Assets

30 September 2011

30 September 2010

U.S.

International

U.S.

International

Pension Plans with PBO in Excess of Plan Assets:

PBO

$2,605.9

$1,015.9

$2,446.2

$1,294.8

Fair value of plan assets

1,844.3

828.9

1,727.2

971.2

Pension Plans with ABO in Excess of Plan Assets:

ABO

$2,316.5

$923.2

$2,121.5

$1,170.4

Fair value of plan assets

1,844.3

816.9

1,727.2

944.5

Assumed Healthcare Trend Rates


	2011		2010
Healthcare trend rate		8.0%		8.0%
Ultimate trend rate		5.0%		5.0%
Year the ultimate trend rate is reached		2015		2014

Defined Benefit Pension Plans [Member]

Components Of Net Periodic Benefit Cost


	2011						2010						2009
	U.S.			International			U.S.			International			U.S.			International
Service cost		$43.6			$29.5			$42.5			$24.2			$33.9			$26.6
Interest cost		122.8			64.2			123.4			60.2			124.0			60.9
Expected return on plan assets		(179.4	)		(68.1	)		(164.3	)		(64.3	)		(146.5	)		(55.3	)
Amortization
Prior service cost		2.6			.6			2.7			.7			2.6			1.3
Actuarial loss		63.9			30.9			46.9			19.9			6.2			10.8
Settlements and curtailments		—			1.0			10.7			.8			9.7			4.8
Special termination benefits		—			.3			(.9	)		4.2			7.2			22.1
Other		—			2.2			—			2.3			—			1.7
Net Periodic Pension Cost		$53.5			$60.6			$61.0			$48.0			$37.1			$72.9

Change In PBO, Change In Fair Value Of Plan Assets And Amounts Recognized In The Consolidated Balance Sheets


	2011						2010
	U.S.			International			U.S.			International
Change in Projected Benefit Obligation
Obligation at beginning of year		$2,446.2			$1,307.4			$2,210.5			$1,175.5
Service cost		43.6			29.5			42.5			24.2
Interest cost		122.8			64.2			123.4			60.2
Amendments		.6			—			1.3			1.0
Actuarial loss (gain)		93.3			(183.6	)		176.9			115.0
Curtailments		—			(.4	)		—			(1.2	)
Settlements		—			(5.1	)		(20.0	)		—
Special termination benefits		—			.3			(.9	)		4.2
Participant contributions		—			3.7			—			4.1
Benefits paid		(100.6	)		(43.0	)		(87.5	)		(48.0	)
Currency translation/other		—			(13.1	)		—			(27.6	)
Obligation at End of Year		$2,605.9			$1,159.9			$2,446.2			$1,307.4

Change in Plan Assets
Fair value at beginning of year		$1,727.2			$984.4			$1,457.7			$793.3
Actual return on plan assets		36.4			(7.0	)		153.5			77.7
Company contributions		181.3			59.7			227.5			179.1
Participant contributions		—			3.7			—			4.1
Benefits paid		(100.6	)		(43.0	)		(87.5	)		(48.0	)
Settlements		—			(5.1	)		(24.0	)		—
Currency translation/other		—			(13.3	)		—			(21.8	)
Fair Value at End of Year		$1,844.3			$979.4			$1,727.2			$984.4

Funded Status at End of Year		$(761.6	)		$(180.5	)		$(719.0	)		$(323.0	)

Amounts Recognized
Noncurrent assets		$—			$6.5			$—			$—
Accrued liabilities		(10.3	)		(23.5	)		(178.2	)		(60.6	)
Noncurrent liabilities		(751.3	)		(163.5	)		(540.8	)		(262.4	)
Net Amount Recognized		$(761.6	)		$(180.5	)		$(719.0	)		$(323.0	)

Changes In Plan Assets And Benefit Obligation Recognized In Accumulated Other Comprehensive Income (Loss) On Pretax Basis


	2011						2010
	U.S.			International			U.S.			International
Net actuarial loss (gain) arising during the period		$236.5			$(108.8	)		$191.6			$103.2
Amortization of net actuarial loss		(63.9	)		(31.9	)		(57.6	)		(20.7	)
Prior service cost arising during the period		.6			—			1.3			1.0
Amortization of prior service cost		(2.6	)		(.6	)		(2.7	)		(.7	)
Total		$170.6			$(141.3	)		$132.6			$82.8

Components Recognized In Accumulated Other Comprehensive Income (Loss) On Pretax Basis


	2011				2010
	U.S.		International		U.S.		International
Net actuarial loss		$1,283.5		$392.7		$1,110.9		$533.4
Prior service cost		14.9		6.5		16.9		7.1
Net transition liability		—		.4		—		.4
Total		$1,298.4		$399.6		$1,127.8		$540.9

Amount Of Accumulated Other Comprehensive Income (Loss) That Is Expected To Be Recognized During Fiscal Year 2012


	U.S.		International
Net actuarial loss		$76.0		$15.2
Prior service cost		2.5		.4

Projected Benefit Payments


	U.S.		International
2012		$104.5		$42.1
2013		111.1		45.2
2014		117.2		47.0
2015		124.4		49.6
2016		132.2		50.1
2017–2021		790.3		282.3

Other Postretirement Benefits [Member]

Components Of Net Periodic Benefit Cost


	2011		2010			2009
Service cost		$5.7		$4.7			$4.0
Interest cost		3.3		4.6			6.5
Amortization
Prior service credit		—		(.1	)		(1.4	)
Actuarial loss		3.8		2.9			.1
Net Periodic Postretirement Cost		$12.8		$12.1			$9.2

Change In PBO, Change In Fair Value Of Plan Assets And Amounts Recognized In The Consolidated Balance Sheets


	2011			2010
Obligation at beginning of year		$120.9			$116.0
Service cost		5.7			4.7
Interest cost		3.3			4.6
Actuarial (gain) loss		(2.5	)		7.8
Benefits paid		(13.6	)		(12.2	)
Obligation at End of Year		$113.8			$120.9

Amounts Recognized
Accrued liabilities		$12.8			$13.7
Noncurrent liabilities		101.0			107.2

Changes In Plan Assets And Benefit Obligation Recognized In Accumulated Other Comprehensive Income (Loss) On Pretax Basis


	2011			2010
Net actuarial (gain) loss arising during the period		$(2.5	)		$7.8
Amortization of net actuarial loss		(3.8	)		(2.9	)
Amortization of prior service credit		—			.1
Total		$(6.3	)		$5.0

Projected Benefit Payments


2012			$13.0
2013			12.8
2014			12.7
2015			12.6
2016			12.7
2017–2021			56.9

Net Periodic Pension Cost [Member]

Weighted Average Assumptions Used In The Calculation Of Net Periodic Pension Cost And PBO


	2011						2010						2009
	U.S.			International			U.S.			International			U.S.			International
Discount rate		5.1	%		4.9	%		5.7	%		5.5	%		7.6	%		6.5	%
Expected return on plan assets		8.8	%		6.6	%		8.8	%		7.3	%		8.8	%		7.4	%
Rate of compensation increase		4.0	%		3.8	%		4.3	%		3.7	%		4.3	%		4.4	%

Projected Benefit Obligation [Member]

Weighted Average Assumptions Used In The Calculation Of Net Periodic Pension Cost And PBO


	2011					2010
	U.S.			International		U.S.			International
Discount rate		4.9	%		5.5%		5.1	%		4.9%
Rate of compensation increase		4.0	%		3.8%		4.0	%		3.8%

Commitments And Contingencies (Tables)

12 Months Ended

Sep. 30, 2011

Commitments And Contingencies [Abstract]

Future Payments Under Unconditional Purchase Obligations


2012			$649
2013			121
2014			119
2015			117
2016			122
Thereafter			547
Total			$1,675

Tabular disclosure of unconditional purchase obligations that are not recognized as a liability on the balance sheet, including the nature and significant terms of an unconditional purchase obligation; the amount of the fixed and determinable portion of the obligation as of the date of the latest balance sheet presented in the aggregate and, if determinable, for each of the five succeeding fiscal years; the nature of any variable components of the obligation; the amount purchased under the obligation (for example, the take-or-pay or throughput contract) for the reporting period; and may include the amount of imputed interest necessary to reduce the obligation to present value.

Share-Based Compensation Cost Recognized In Income Statement

Capital Stock (Tables)

12 Months Ended

Sep. 30, 2011

Capital Stock [Abstract]

Changes In Common Shares


Year ended 30 September	2011			2010		2009
Number of Common Shares Outstanding
Balance, beginning of year		213,802,865			211,260,264		209,334,627
Purchase of treasury shares		(7,433,612	)		—		—
Issuance of treasury shares for stock option and award plans		3,816,003			2,542,601		1,925,637
Balance, end of year		210,185,256			213,802,865		211,260,264

Share-Based Compensation (Tables)

12 Months Ended

Sep. 30, 2011

Share-Based Compensation [Abstract]


	2011			2010			2009
Cost of sales		$3.8			$4.0			$7.9
Selling and administrative		39.5			42.5			46.9
Research and development		1.5			2.1			4.1
Global cost reduction plan		—			—			1.5
Before-Tax Share-Based Compensation Cost		44.8			48.6			60.4
Income tax benefit		(17.1	)		(18.3	)		(23.3	)
After-Tax Share-Based Compensation Cost		$27.7			$30.3			$37.1

Before-Tax Share-Based Compensation Cost By Program Type


	2011		2010		2009
Stock options		$21.4		$25.0		$38.3
Deferred stock units		20.8		21.5		19.2
Restricted stock		2.6		2.1		2.9
Before-Tax Share-Based Compensation Cost		$44.8		$48.6		$60.4

Assumptions Used To Estimate Fair Value Of Options Granted


	2011			2010			2009
Expected volatility		29.2%–30.0	%		32.6	%		31.2	%
Expected dividend yield		2.2	%		2.1	%		2.1	%
Expected life (in years)		7.0–8.7			6.8–8.0			6.8–8.0
Risk-free interest rate		2.4%–2.9	%		2.9%–3.3	%		3.5%–3.9	%

Summary Of Stock Option Activity


Stock Options	Shares (000)			Weighted Average Exercise Price
Outstanding at 30 September 2010		16,435			$56.56
Granted		932			86.39
Exercised		(3,753	)		42.13
Forfeited		(44	)		72.46
Outstanding at 30 September 2011		13,570			$62.55
Exercisable at 30 September 2011		11,375			$59.19

Stock Options	Weighted Average Remaining Contractual Terms (in years)			Aggregate Intrinsic Value
Outstanding at 30 September 2011		4.5			$230
Exercisable at 30 September 2011		3.7			$224

Summary Of Deferred Stock Units


Deferred Stock Units	Shares (000)			Weighted Average Grant-Date Fair Value
Outstanding at 30 September 2010		1,527			$64.67
Granted		299			86.42
Paid out		(306	)		68.00
Forfeited/adjustments		(15	)		86.92
Outstanding at 30 September 2011		1,505			$68.10

Summary Of Restricted Stock Activity


Restricted Stock	Shares (000)			Weighted Average Grant-Date Fair Value
Outstanding at 30 September 2010		141			$70.87
Granted		32			86.39
Vested		(19	)		66.69
Outstanding at 30 September 2011		154			$74.59

Tabular disclosure of an equity-based arrangement (such as stock or unit options and stock or unit awards) with an individual employee, which is generally an employment contract between the entity and a selected officer or key employee containing a promise by the employer to pay certain equity-based awards at future dates, sometimes including a period after retirement, upon compliance with stipulated requirements. This type of arrangement is distinguished from broader based employee benefit plans as it is usually tailored to the employee. Disclosure also typically includes the amount of related compensation expense recognized during the reporting period, the number of shares or units issued during the period under such arrangements, and the carrying amount as of the balance sheet date of the related liability.

Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.

Schedule Of Changes In Ownership Interests

Noncontrolling Interests (Tables)

12 Months Ended

Sep. 30, 2011

Noncontrolling Interests [Abstract]


	2011			2010			2009
Net income attributable to Air Products		$1,224.2			$1,029.1			$631.3
Transfers to noncontrolling interests
Decrease in Air Products capital in excess of par value for purchase of noncontrolling interests		(6.1	)		(28.3	)		—
Changes from Net Income Attributable to Air Products and Transfers to Noncontrolling Interests		$1,218.1			$1,000.8			$631.3

Earnings Per Share (Tables)

12 Months Ended

Sep. 30, 2011

Earnings Per Share [Abstract]

Schedule Of Earnings Per Share


30 September	2011		2010		2009
Numerator
Income from continuing operations		$1,215.3		$1,029.1		$639.9
Income (Loss) from discontinued operations		8.9		—		(8.6	)
Net Income Attributable to Air Products		$1,224.2		$1,029.1		$631.3
Denominator (in millions)
Weighted average number of common shares outstanding		213.0		212.2		209.9
Effect of dilutive securities
Employee stock options		3.7		3.9		2.6
Other award plans		.9		1.0		1.0
		4.6		4.9		3.6
Weighted average number of common shares outstanding assuming dilution		217.6		217.1		213.5
Basic EPS Attributable to Air Products
Income from continuing operations		$5.71		$4.85		$3.05
Income (Loss) from discontinued operations		.04		—		(.04	)
Net Income Attributable to Air Products		$5.75		$4.85		$3.01
Diluted EPS Attributable to Air Products
Income from continuing operations		$5.59		$4.74		$3.00
Income (Loss) from discontinued operations		.04		—		(.04	)
Net Income Attributable to Air Products		$5.63		$4.74		$2.96

Income Taxes (Tables)

12 Months Ended

Sep. 30, 2011

Income Taxes [Abstract]

Components Of Provision For Income Taxes


	2011		2010		2009
Federal
Current		$14.7		$100.5		$88.1
Deferred		181.6		47.4		18.1
		196.3		147.9		106.2
State
Current		20.1		2.7		35.8
Deferred		2.6		4.3		(20.9	)
		22.7		7.0		14.9
Foreign
Current		187.9		140.1		113.7
Deferred		1.5		44.5		(49.5	)
		189.4		184.6		64.2
		$408.4		$339.5		$185.3

Components Of Deferred Tax Assets And Liabilities


30 September	2011			2010
Gross Deferred Tax Assets
Retirement benefits and compensation accruals		$513.5			$491.0
Tax loss carryforwards		43.7			62.2
Tax credits		49.6			67.4
Reserves and accruals		95.8			75.4
Acquisition-related costs		—			35.9
Asset impairment		8.6			6.7
Currency losses		28.7			29.5
Other		58.9			153.2
Valuation allowance		(28.6	)		(55.4	)
Deferred Tax Assets		770.2			865.9
Gross Deferred Tax Liabilities
Plant and equipment		1,006.7			840.9
Investment in partnerships		7.3			5.6
Unrealized gain on cost investments		—			11.8
Unremitted earnings of foreign entities		37.9			—
Intangible assets		50.5			57.0
Other		15.5			76.5
Deferred Tax Liabilities		1,117.9			991.8
Net Deferred Income Tax Liability		$347.7			$125.9

Deferred Tax Assets And Liabilities Included In Consolidated Financial Statements


	2011		2010
Deferred Tax Assets
Other receivables and current assets		$104.0		$124.1
Other noncurrent assets		123.8		85.5
Total Deferred Tax Assets		227.8		209.6
Deferred Tax Liabilities
Payables and accrued liabilities		5.4		0.4
Deferred income taxes		570.1		335.1
Total Deferred Tax Liabilities		575.5		335.5
Net Deferred Income Tax Liability		$347.7		$125.9

Effective Tax Rate Reconciliation


(Percent of income before taxes)	2011			2010			2009
U.S. federal statutory tax rate		35.0	%		35.0	%		35.0	%
State taxes, net of federal benefit		.9			.3			1.1
Income from equity affiliates		(3.1	)		(3.0	)		(4.7	)
Foreign taxes and credits		(7.0	)		(8.3	)		(7.3	)
Domestic production activities		(.5	)		(.6	)		(1.1	)
Tax audit settlements and adjustments		(1.0	)		—			(.8	)
Donation of investments		—			(.4	)		—
Other		0.3			1.4			(.1	)
Effective Tax Rate		24.6	%		24.4	%		22.1	%

Income Of U.S And Foreign Operations Before Taxes


	2011		2010		2009
Income from Continuing Operations before Taxes
United States		$625.5		$464.5		$374.3
Foreign		881.2		802.6		350.1
Income from equity affiliates		154.3		126.9		112.2
Total		$1,661.0		$1,394.0		$836.6

Reconciliation Of Unrecognized Tax Benefits


Unrecognized Tax Benefits	2011			2010			2009
Balance at beginning of year		$197.8			$163.1			$154.7
Additions for tax positions of the current year		16.3			31.8			23.6
Additions for tax positions of prior years		5.7			12.9			36.3
Reductions for tax positions of prior years		(72.4	)		(1.0	)		(43.5	)
Settlements		(15.6	)		—			(4.9	)
Statute of limitations expiration		(4.8	)		(6.1	)		(5.4	)
Foreign currency translation		(0.6	)		(2.9	)		2.3
Balance at End of Year		$126.4			$197.8			$163.1

Summary Of Income Tax Examinations


Major Tax Jurisdiction	Open Tax Years
North America
United States		2009–2011
Canada		2007–2011
Europe
United Kingdom		2008–2011
Germany		2006–2011
Netherlands		2005–2011
Poland		2005–2011
Spain		2009–2011
Asia
China		2006–2011
Taiwan		2006–2011
Korea		2006–2011

Tabular disclosure of tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities (i.e., uncertain tax positions) and other types of income tax contingencies, including: (1) the policy on classification of interest and penalties; (2) a tabular reconciliation of the total amounts of unrecognized tax benefits at the beginning and end of the period; the total amount(s) of: (3) unrecognized tax benefits that, if recognized, would affect the effective tax rate, and (4) interest and penalties recognized in each of the income statement and balance sheet; (5) for positions for which it is reasonably possible that the total amounts unrecognized will significantly change within 12 months of the reporting date the: (i) nature of the uncertainty, (ii) nature of the event that could occur that would cause the change, and (iii) an estimate of the range of the reasonably possible change or a statement that an estimate of the range cannot be made; and (6) a description of tax years that remain subject to examination by major tax jurisdictions.

Tabular disclosure of income tax examinations that an enterprise is currently subject to or that have been completed in the current period typically including a description of the examination, the jurisdiction conducting the examination, the tax year(s) under examination, the likelihood of an unfavorable settlement, the range of possible losses, the liability recorded, the increase or decrease in the liability from the prior period, and any penalties and interest that have been recorded.

Other Receivables And Current Assets

Supplemental Information (Tables)

12 Months Ended

Sep. 30, 2011

Supplemental Information [Abstract]


Other Receivables and Current Assets
30 September	2011		2010
Deferred tax assets		$104.0		$124.1
Derivative instruments		30.8		42.6
Other receivables		103.3		120.7
Current capital lease receivables		47.1		39.1
Other		1.1		45.6
		$286.3		$372.1

Other Noncurrent Assets


Other Noncurrent Assets
30 September	2011		2010
Restricted cash		$77.2		$95.7
Derivative instruments		87.4		71.8
Other long-term receivables		43.7		61.6
Airgas investment		—		102.5
Deferred tax assets		123.8		85.5
Other		149.3		120.2
		$481.4		$537.3

Payables And Accrued Liabilities


Payables and Accrued Liabilities
30 September	2011		2010
Trade creditors		$800.0		$662.2
Customer advances		136.0		80.7
Accrued payroll and employee benefits		204.6		207.5
Pension benefits		33.8		238.8
Dividends payable		121.9		104.8
Outstanding payments in excess of certain cash balances		36.8		31.4
Accrued interest expense		51.3		52.9
Derivative instruments		40.6		31.9
Acquisition-related accrual		—		117.7
Liability related to purchase of shares from noncontrolling interests		51.0		—
Other		165.8		174.1
		$1,641.8		$1,702.0

Other Noncurrent Liabilities


Other Noncurrent Liabilities
30 September	2011		2010
Pension benefits		$914.8		$803.2
Postretirement benefits		101.0		107.2
Other employee benefits		100.5		103.5
Contingencies related to uncertain tax positions		154.1		228.8
Advance payments		46.2		69.6
Environmental liabilities		75.1		79.9
Liability related to purchase of shares from noncontrolling interests		—		42.0
Derivative instruments		3.2		22.3
Other		117.5		112.8
		$1,512.4		$1,569.3

Accumulated Other Comprehensive Income (Loss)


Accumulated Other Comprehensive Income (Loss)
30 September	2011			2010			2009
Net unrealized holding gain on investments		$—			$20.7			$10.5
Net unrecognized (loss) on derivatives qualifying as hedges		(9.5	)		(21.9	)		(25.1	)
Foreign currency translation adjustments		(130.9	)		(44.1	)		(179.8	)
Pension and postretirement benefits		(1,113.0	)		(1,114.1	)		(967.4	)
		$(1,253.4	)		$(1,159.4	)		$(1,161.8	)

Other Income (Expense), Net



Other Income (Expense), Net
30 September	2011			2010			2009
Technology and royalty income		$24.3			$19.0			$19.5
Interest income		5.7			3.4			7.4
Foreign exchange		(8.6	)		4.0			(3.8	)
Sale of assets and investments		12.8			13.2			(3.0	)
Amortization of intangibles		(5.5	)		(8.4	)		(10.1	)
Government grants		9.5			—			—
Other		(1.0	)		7.5			13.0
		$37.2			$38.7			$23.0

Summary By Quarter (Tables)

12 Months Ended

Sep. 30, 2011

Sep. 30, 2010

Summary By Quarter [Abstract]

Summary Of Quarterly Operating Results

2011

First

Second

Third

Fourth

Total

Sales

$2,391.7

$2,501.3

$2,577.8

$2,611.2

$10,082.0

Gross profit

671.2

698.8

695.7

701.0

2,766.7

Net loss on Airgas transaction

43.5

5.0

—

48.5

Operating income

360.6

419.5

416.8

425.3

1,622.2

Income from continuing operations- attributable to Air Products

268.6

304.3

317.6

324.8

1,215.3

Income from discontinued operations- attributable to Air Products

—

8.9

—

8.9

Net Income

275.9

311.5

335.0

339.1

1,261.5

Net Income attributable to Air Products

268.6

304.3

326.5

324.8

1,224.2

Basic EPS attributable to Air Products

Income from continuing operations

1.25

1.42

1.50

1.54

5.71

Income from discontinued operations

—

.04

—

0.04

Net income per common share

1.25

1.42

1.54

5.75

Diluted EPS attributable to Air Products

Income from continuing operations

1.23

1.39

1.46

1.51

5.59

Income from discontinued operations

—

.04

—

0.04

Net income per common share

1.23

1.39

1.50

1.51

5.63

Dividends declared per common share

.49

.58

2.23

Market price per common share:

High

91.39

95.00

96.00

98.00

Low

80.90

83.22

89.18

74.58


2010		First		Second		Third			Fourth			Total
Sales			$2,173.5		$2,249.0		$2,252.3			$2,351.2			$9,026.0
Gross profit			604.9		620.3		641.2			656.6			2,523.0
Net loss on Airgas Transaction			—		23.4		37.9			34.7			96.0
Customer bankruptcy			—		—		(1.8	)		(4.6	)		(6.4	)
Pension settlement			—		—		6.3			5.2			11.5
Operating income			345.0		340.6		336.4			367.0			1,389.0
Net income			256.8		258.4		261.3			278.0			1,054.5
Net income attributable to Air Products			251.8		252.0		253.2			272.1			1,029.1
Basic EPS attributable to Air Products
Net income per common share			1.19		1.19		1.19			1.28			4.85
Diluted EPS attributable to Air Products
Net income per common share			1.16		1.16		1.17			1.25			4.74
Dividends declared per common share			.45		.49		.49			.49			1.92
Market price per common share:	High		85.44		83.80		80.24			84.43
	Low		73.76		65.05		64.47			64.13

Business Segment And Geographic Information (Tables)

12 Months Ended

Sep. 30, 2011

Business Segment And Geographic Information [Abstract]

Segment Revenue From External Customers


Sales to External Customers	2011		2010		2009
Merchant Gases		$4,073.2		$3,718.3		$3,610.6
Tonnage Gases		3,316.7		2,930.8		2,573.6
Electronics and Performance Materials		2,291.5		1,904.7		1,582.2
Equipment and Energy		400.6		472.2		489.8
Segment and Consolidated Totals		$10,082.0		$9,026.0		$8,256.2

Segment Operating Income


Operating Income	2011			2010			2009
Merchant Gases		$759.8			$729.4			$661.2
Tonnage Gases		503.1			444.2			399.6
Electronics and Performance Materials		361.1			251.8			101.6
Equipment and Energy		62.8			67.3			42.2
Segment total		$1,686.8			$1,492.7			$1,204.6
Global cost reduction plan ^(A)		—			—			(298.2	)
Net loss on Airgas transaction		(48.5	)		(96.0	)		—
Customer bankruptcy and asset actions		—			6.4			(32.1	)
Pension settlement		—			(11.5	)		(10.7	)
Other		(16.1	)		(2.6	)		(17.3	)
Consolidated Total		$1,622.2			$1,389.0			$846.3

^(A) Information about how this charge related to the businesses at the segment level is discussed in Note 5, Global Cost Reduction Plan.

Segment Reporting Depreciation And Amortization


Depreciation and Amortization	2011		2010		2009
Merchant Gases		$396.6		$377.9		$372.3
Tonnage Gases		310.9		303.0		272.2
Electronics and Performance Materials		154.9		169.0		178.2
Equipment and Energy		11.0		12.7		15.9
Segment total		$873.4		$862.6		$838.6
Other		.5		.8		1.7
Consolidated Total		$873.9		$863.4		$840.3

Segment Reporting Equity Affiliates' Income


Equity Affiliates' Income	2011		2010		2009
Merchant Gases		$134.6		$104.3		$98.3
Other segments		19.7		22.6		13.9
Segment and Consolidated Totals		$154.3		$126.9		$112.2

Segment Reporting Total Assets


Total Assets	2011		2010		2009
Merchant Gases		$5,892.1		$5,824.7		$5,630.8
Tonnage Gases		4,581.8		3,958.1		3,672.0
Electronics and Performance Materials		2,560.7		2,336.1		2,299.1
Equipment and Energy		357.5		362.7		333.8
Segment total		$13,392.1		$12,481.6		$11,935.7
Other		898.6		1,024.3		1,093.4
Consolidated Total		$14,290.7		$13,505.9		$13,029.1

Segment Investment In And Advances To Equity Affiliates


Investment in and Advances to Equity Affiliates	2011		2010		2009
Merchant Gases		$800.4		$749.4		$713.8
Other segments		211.2		163.4		154.3
Segment and Consolidated Totals		$1,011.6		$912.8		$868.1

Segment Identifiable Assets Information


Identifiable Assets	2011		2010		2009
Merchant Gases		$5,091.7		$5,075.3		$4,917.0
Tonnage Gases		4,464.3		3,876.4		3,597.8
Electronics and Performance Materials		2,488.9		2,275.8		2,249.5
Equipment and Energy		335.6		341.3		303.3
Segment total		$12,380.5		$11,568.8		$11,067.6
Other		898.6		1,024.3		1,093.4
Consolidated Total		$13,279.1		$12,593.1		$12,161.0

Segment Expenditures For Long-Lived Assets


Expenditures for Long Lived Assets^(A)	2011		2010		2009
Merchant Gases		$432.9		$311.5		$510.8
Tonnage Gases		669.9		557.2		532.1
Electronics and Performance Materials		196.0		139.0		125.4
Equipment and Energy		45.9		22.4		9.8
Segment total		$1,344.7		$1,030.1		$1,178.1
Other		7.0		.8		1.0
Consolidated Total		$1,351.7		$1,030.9		$1,179.1

^(A) Includes plant and equipment

Geographic Information - Revenue From External Customers


Sales to External Customers	2011		2010		2009
United States		$4,423.8		$4,110.2		$3,779.8
Canada		297.0		260.3		238.6
Europe		3,002.1		2,819.7		2,765.1
Asia		2,122.1		1,621.0		1,294.2
Latin America/other		237.0		214.8		178.5
		$10,082.0		$9,026.0		$8,256.2

Geographic Information - Long-Lived Assets


Long Lived Assets^(A)	2011		2010		2009
United States		$3,099.2		$2,968.0		$2,987.1
Canada		566.1		608.8		535.2
Europe		1,833.7		1,711.1		1,766.8
Asia		1,786.2		1,658.4		1,462.3
Latin America/other		126.8		105.0		108.2
		$7,412.0		$7,051.3		$6,859.6

^(A)Long lived assets include plant and equipment, net.

Schedule II - Valuation And Qualifying Accounts (Tables)

12 Months Ended

Sep. 30, 2011

Schedule II - Valuation And Qualifying Accounts [Abstract]

Schedule II - Valuation And Qualifying Accounts


			Additions						Other Changes Increase (Decrease)
	Balance at Beginning of Period		Charged to Expense			Charged to Other Accounts			Cumulative Translation Adjustment			Other ^(A)			Balance at End of Period

						(in millions of dollars)

Year Ended 30 September 2011
Allowance for doubtful accounts		$99		$16			$7			$(1	)		$(23	)		$98
Allowance for deferred tax assets		55		(27	)		0			0			0			28

Year Ended 30 September 2010
Allowance for doubtful accounts		$65		$4			$25			$—			$5			$99
Allowance for deferred tax assets		32		26			(2	)		(1	)		—			55

Year Ended 30 September 2009
Allowance for doubtful accounts		$36		$24			$14			$1			$(10	)		$65
Allowance for deferred tax assets		61		(30	)		—			1			—			32

Note:

^(A)

Primarily write-offs of uncollectible trade receivable accounts and tax valuation allowances.

Major Accounting Policies (Details) - USD ($) $ in Millions	12 Months Ended
Major Accounting Policies (Details) - USD ($) $ in Millions	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Environmental expense	$ 34.0	$ 31.6	$ 52.5
Minimum percentage needed for position to be sustained upon examination	50.00%
Exercises significant influence to equity method of accounting, minimum	20.00%
Exercises significant influence to equity method of accounting, maximum	50.00%
Provision for doubtful accounts	$ 23.4	29.5	37.8
Allowance for doubtful accounts	98.0	99.3
Interest costs, capitalized during period	22.7	14.3	$ 21.9
Asset retirement obligation	63.4	$ 57.6
Indefinite-lived intangible assets acquired	0.0
Residual value	$ 0.0
Period for reallocation of purchase price (in years)	1
Customer Relationships [Member]
Amortized period, minimum (in years)	5
Amortized period, maximum (in years)	25
Patents And Technology [Member]
Amortized period, minimum (in years)	5
Amortized period, maximum (in years)	20
Computer Software [Member]
Amortized period, minimum (in years)	3
Amortized period, maximum (in years)	10
SAP Software [Member]
SAP useful life (in years)	10

Airgas Transaction (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions			3 Months Ended								12 Months Ended
	Feb. 16, 2011	Feb. 03, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2009	Sep. 30, 2011	Sep. 30, 2010	Dec. 09, 2010	Feb. 28, 2010
Cash price per share of tender offer to purchase outstanding common stock of Airgas, Inc., including the associated preferred stock purchase rights													$ 70.00	$ 60.00
Total value of transaction													$ 7,800.0
Equity component of transaction													6,100.0
Debt component of transaction													$ 1,700.0
Number of shares purchased prior to tender offer			1.5								1.5
Airgas stock purchased prior to tender offer												$ 69.6
Shares sold upon termination of tender offer	1.5
Proceeds from sale of Airgas stock	$ 94.7										$ 94.7
Recognized gain on sale of stock	25.1
Recognized gain on sale of stock, after tax	$ 15.9
Recognized gain on sale of stock, per share	$ 0.07
Net loss on Airgas transaction					$ 5.0	$ 43.5	$ 34.7	$ 37.9	$ 23.4		48.5	96.0
Transaction costs incurred during period, after tax											$ 31.6	$ 60.1
Transaction costs incurred during period, after tax, per share											$ 0.14	$ 0.28
Payments of acquisition related costs											$ 156.2	$ 12.0
Term Loan Credit Facility [Member]
Credit facility	$ 6,700.0
Amended Term Loan Credit Facility [Member]
Credit facility	6,700.0
Line of credit facility, expiration date											4 June 2011
Underwriting fees		$ 0.0
Early termination penalties incurred	$ 0.0

Business Combinations (Details) € in Millions, $ in Millions		3 Months Ended	12 Months Ended
	Mar. 01, 2010 USD ($)	Sep. 30, 2010 USD ($)	Sep. 30, 2011 USD ($)	Sep. 30, 2010 USD ($)	Sep. 30, 2009 EUR (€)	Sep. 30, 2009 USD ($)	Nov. 30, 2010 EUR (€)	Nov. 30, 2010 USD ($)	Mar. 31, 2010	Mar. 01, 2010 EUR (€)	Mar. 01, 2010 USD ($)
Amount paid for SAGA group shares net of cash acquired			$ 10.8	$ 37.2		$ 32.7
French SAGA [Member]
SAGA revenues for calendar year 2009					€ 25.0	$ 35.0
Percentage of SAGA group shares purchased									100.00%	51.47%	51.47%
Amount paid for SAGA group shares							€ 44.8	$ 62.0		€ 34.5	$ 47.2
Amount paid for SAGA group shares net of cash acquired	$ 25.0
Cash acquired in SAGA group transaction	$ 22.2
Values as of acquisition date, identifiable intangibles		$ 42.5		42.5
Values as of acquisition date, plant and equipment		40.8		40.8
Values as of acquisition date, goodwill (deductible for tax purposes)		35.0		35.0
Values as of acquisition date, other net assets		12.7		12.7
Deferred tax liabilities recognized in transaction		$ 23.0		$ 23.0
Identified intangibles - average amortization period (years)		23

Global Cost Reduction Plan (Narrative) (Details)
$ / shares in Units, $ in Millions

3 Months Ended

12 Months Ended

Jun. 30, 2009

USD ($)

$ / shares

Dec. 31, 2008

USD ($)

$ / shares

Sep. 30, 2009

USD ($)

$ / shares

Global Cost Reduction Plan [Abstract]

Global cost reduction plan charge incurred, after-tax amount

$ 124.0

$ 174.2

$ 298.2

^[1]

$ 84.2

$ 116.1

$ 200.3

Global cost reduction plan charge incurred, per share amount | $ / shares

$ 0.39

$ 0.55

$ 0.94

Severance benefits and pension-related costs associated with workforce reduction

$ 210.0

Number of positions to be eliminated

2,550

Business exit costs

$ 88.2

$ 16.0

[1]	Information about how this charge related to the businesses at the segment level is discussed in Note 5, Global Cost Reduction Plan.

Global Cost Reduction Plan (Global Cost Reduction Plan As It Relates To Businesses At Segment Level) (Details) - USD ($)
$ in Millions

3 Months Ended

12 Months Ended

Jun. 30, 2009

Dec. 31, 2008

Sep. 30, 2009

$ 210.0

88.2

$ 124.0

$ 174.2

298.2

^[1]

Merchant Gases [Member]

127.5

7.2

134.7

Tonnage Gases [Member]

14.2

Electronics And Performance Materials [Member]

14.2

30.6

58.9

Equipment And Energy [Member]

89.5

37.7

22.1

RestructuringReservePeriodExpense

$ 59.8

[1]	Information about how this charge related to the businesses at the segment level is discussed in Note 5, Global Cost Reduction Plan.

Global Cost Reduction Plan (Table Of Changes For The Global Cost Reduction Plan) (Details) - USD ($)
$ in Millions

3 Months Ended

12 Months Ended

Jun. 30, 2009

Dec. 31, 2008

Sep. 30, 2011

Sep. 30, 2010

Sep. 30, 2009

$ 124.0

$ 174.2

^[1]

$ 1.5

$ (16.0)

Non cash items

(2.7)

(99.9)

Cash expenditures

$ (1.9)

(103.0)

(76.2)

Restructuring reserve, ending balance

(5.3)

4.3

Adjustment to charge

1.0

1.9

110.4

Severance And Other Benefits [Member]

RestructuringReservePeriodExpense

90.0

120.0

^[1]

Non cash items

^[2]

(2.8)

(33.8)

Cash expenditures

(1.9)

(102.8)

(75.3)

Restructuring reserve, ending balance

(5.3)

4.3

Adjustment to charge

7.6

1.9

105.2

Asset Impairments/Other Costs [Member]

RestructuringReservePeriodExpense

$ 34.0

$ 54.2

^[1]

1.5

(16.0)

Non cash items

0.1

(66.1)

Cash expenditures

(0.2)

(0.9)

Restructuring reserve, ending balance

Adjustment to charge

(6.6)

$ 5.2

[1]	Reflected in accrual for environmental obligations. See Note 16, Commitments and Contingencies.
[2]	Primarily pension-related costs, which are reflected in the accrual for pension benefits.

Amount of any reversal and other adjustment made during the period to the amount of a previously accrued liability for a specified type of restructuring cost, excluding adjustments for costs incurred during the period, costs settled during the period, and foreign currency translation adjustments.

Discontinued Operations (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended					12 Months Ended
	Jun. 30, 2011	Sep. 30, 2009	Jun. 30, 2009	Mar. 31, 2009	Dec. 31, 2008	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Proceeds from sale of discontinued operations								$ 51.0
U.S. Healthcare Business [Member]
Impairment charge to write-down net realizable value of discontinued operations, gross					$ 48.7
Impairment charge to write-down net realizable value of discontinued operations, after-tax					$ 30.9
Impairment charge to write-down net realizable value of discontinued operations, per share					$ 0.15
Revise estimated tax benefit of previous impairment charges, per share					$ 0.04
Revise estimated tax benefit of previous impairment charges				$ 16.7	$ 8.8
One-time tax benefit resulting from events in second quarter 2009, per share				$ 0.08
Proceeds from sale of discontinued operations		$ 12.1	$ 38.1
Discontinued operation, gain (loss) on disposal of discontinued operation, net of tax		$ (0.7)	$ 0.3
Income tax benefit	$ 8.9					$ 8.9		$ 2.1
Tax effect of income (loss) from disposal of discontinued operations per share	$ 0.04

Discontinued Operations (Table Of Operating Results Of Discontinued Operations) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jun. 30, 2011	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Income (Loss) from Discontinued Operations, net of tax	$ 8.9	$ 8.9		$ (8.6)
U.S. Healthcare Business [Member]
Sales				125.2
Loss before taxes				(5.5)
Income tax benefit	$ 8.9	8.9		2.1
Income (Loss) from operations of discontinued operations		8.9		(3.4)
Loss on sale of businesses and impairment/write-down to estimated net realizable value, net of tax				(5.2)
Income (Loss) from Discontinued Operations, net of tax		$ 8.9		$ (8.6)

Tax expense or benefit on the gain (loss), not previously recognized and resulting from the sale of a business component, which is recognized at the date of sale. A gain (loss) reflects the amount by which the consideration received exceeds (is exceeded by) the net carrying amount (reflecting previous provisions for loss on disposal, if any) of the disposal group.

This element represents the overall income (loss) from a disposal group apportioned to the parent that is classified as a component of the entity, net of income tax, reported as a separate component of income before extraordinary items after deduction or consideration of the amount which may be allocable to noncontrolling interests, if any. Includes the following (net of tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

Inventories (Schedule Of Inventories) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Inventories [Abstract]
Finished goods	$ 489.1	$ 405.3
Work in process	29.9	29.3
Raw materials, supplies and other	258.2	208.2
Total FIFO value	777.2	642.8
Less: Excess of FIFO cost over LIFO cost	(95.8)	(71.2)
Inventories	$ 681.4	$ 571.6
Percentage of LIFO inventories	42.30%	40.50%
Effect of LIFO inventory liquidation on income	$ 0.0	$ 0.0	$ 0.0

Summarized Financial Information Of Equity Affiliates (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Percentage of equity method investments summarized financial information presented for	100.00%
Dividends received from equity affiliates		$ 105.9	$ 75.4	$ 52.9
Total goodwill associated with affiliate companies accounted for by equity method		$ 892.4	914.6	$ 916.0
Air Products South Africa (Proprietary) Limited [Member]
Percentage of ownership in equity affiliate		50.00%
Bangkok Cogeneration Company Limited [Member]
Percentage of ownership in equity affiliate		49.00%
Bangkok Industrial Gases Co. Ltd. [Member]
Percentage of ownership in equity affiliate		49.00%
Chengdu Air & Gas Products Ltd. [Member]
Percentage of ownership in equity affiliate		50.00%
Daido Air Products Electronics, Inc [Member]
Percentage of ownership in equity affiliate		20.00%
DuPont Air Products NanoMaterials Limited [Member]
Percentage of ownership in equity affiliate		50.00%
Helap S.A. [Member]
Percentage of ownership in equity affiliate		50.00%
High-Tech Gases (Beijing) Co., Ltd. [Member]
Percentage of ownership in equity affiliate		50.00%
INFRA Group [Member]
Percentage of ownership in equity affiliate		40.00%
INOX Air Products Limited [Member]
Percentage of ownership in equity affiliate		50.00%
Kulim Industrial Gases Sdn. Bhd [Member]
Percentage of ownership in equity affiliate		50.00%
Sapio Produzione Idrogeno Ossigeno S.r.l. [Member]
Percentage of ownership in equity affiliate		49.00%
SembCorp Air Products (HyCo) Pte. Ltd. [Member]
Percentage of ownership in equity affiliate		40.00%
Tecnologia En Nitrogeno S. De R.L. De C.V. [Member]
Percentage of ownership in equity affiliate		50.00%
Tyczka Industrie-Gases GmbH [Member]
Percentage of ownership in equity affiliate		50.00%
WuXi Hi-Tech Gas Co., Ltd. [Member]
Percentage of ownership in equity affiliate		50.00%
Foreign Affiliates [Member]
Investment in affiliates		$ 972.5	877.7
Equity Method Investments [Member]
Total goodwill associated with affiliate companies accounted for by equity method		$ 62.6	$ 60.2

Summarized Financial Information Of Equity Affiliates (Table Of Summarized Financial Information Of Equity Affiliates) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Summarized Financial Information Of Equity Affiliates [Abstract]
Current assets	$ 1,247.7	$ 1,133.4
Noncurrent assets	2,189.8	2,071.6
Current liabilities	742.8	788.9
Noncurrent liabilities	613.6	559.9
Net sales	2,650.5	2,293.4	$ 2,129.7
Sales less cost of sales	987.2	964.4	874.4
Operating income	537.0	454.5	404.7
Net income	$ 351.3	$ 293.0	$ 257.7

The amount of current assets reported by an equity method investment of the entity.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 159
-Paragraph 18
-Subparagraph f
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 18
-Paragraph 20
-Subparagraph d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph bb
-Article 1

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph w
-Article 1

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 4
-Section 08
-Paragraph g
-Subparagraph 1, 2

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 28
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14064-108612

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(g))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33912-111571

The amount of current liabilities reported by an equity method investment of the entity.

The amount of gross profit (loss) reported by an equity method investment of the entity.

The amount of net income (loss) reported by an equity method investment of the entity.

The amount of noncurrent assets reported by an equity method investment of the entity.

The amount of noncurrent liabilities reported by an equity method investment of the entity.

Plant And Equipment (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Plant And Equipment [Abstract]
Depreciation	$ 851.0	$ 837.7	$ 815.9

Plant And Equipment (Schedule Of Major Classes Of Plant And Equipment At Cost) (Details)
$ in Millions

12 Months Ended

Sep. 30, 2011

USD ($)

years

Sep. 30, 2010

USD ($)

Sep. 30, 2009

USD ($)

Less accumulated depreciation

$ 17,227.1

$ 16,309.7

9,815.1

9,258.4

Plant and equipment, net

^[1]

7,412.0

7,051.3

$ 6,859.6

Land [Member]

173.2

172.3

Buildings [Member]

Average Useful Life (years) | years

$ 919.5

886.2

Production Facilities [Member]

Distribution Equipment [Member]

^[2]

$ 11,551.1

11,395.4

^[3]

$ 3,092.4

2,918.6

^[3]

Other Machinery And Equipment [Member]

^[3]

$ 252.3

248.0

Construction In Progress [Member]

Merchant Gases [Member] | Production Facilities [Member]

$ 1,238.6

689.2

Average Useful Life (years) | years

^[2]

$ 3,256.4

3,346.3

Tonnage Gases [Member] | Production Facilities [Member]

^[2]

$ 6,266.5

5,691.4

Electronics And Performance Materials [Member] | Production Facilities [Member]

^[2]

$ 1,862.3

2,061.2

Equipment And Energy [Member] | Production Facilities [Member]

^[2]

$ 165.9

$ 296.5

Cylinders [Member] | Distribution Equipment [Member]

Minimum Useful Life (years)

Maximum Useful Life (years)

Tanks [Member] | Distribution Equipment [Member]

Average Useful Life (years)

Customer Stations [Member] | Distribution Equipment [Member]

Average Useful Life (years)

7.5

Tractors And Trailers [Member] | Distribution Equipment [Member]

Minimum Useful Life (years)

Maximum Useful Life (years)

[1]	Long lived assets include plant and equipment, net.
[2]	Depreciable lives of production facilities related to long-term customer supply contracts are matched to the contract lives.
[3]	The depreciable lives for various types of distribution equipment are 10 to 25 years for cylinders, depending on the nature and properties of the product; 20 years for tanks; 7.5 years for customer stations; and 5 to 15 years for tractors and trailers.

Goodwill And Intangible Assets (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Goodwill And Intangible Assets [Abstract]
SAGA - acquisition			$ 35.0
Goodwill - adjustment			16.9
Goodwill - impairment	$ 0.0
Amortization expense for intangible assets		$ 22.9	$ 25.7	$ 24.4

Loss recognized during the period that results from the write-down of goodwill after comparing the implied fair value of reporting unit goodwill with the carrying amount of that goodwill. Goodwill is assessed at least annually for impairment.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 47
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 20
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph e
-Clause 5
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 43
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6905597&loc=d3e13854-109267

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13777-109266

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=6905597&loc=d3e13816-109267

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 72
-Subparagraph d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Goodwill And Intangible Assets (Schedule Of Goodwill By Segment) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Goodwill, Beginning Balance	$ 914.6	$ 916.0
Goodwill, Acquisitions and Adjustments	4.9	18.5
Goodwill, Currency Translation and Other	(27.1)	(19.9)
Goodwill, Ending Balance	892.4	914.6
Merchant Gases [Member]
Goodwill, Beginning Balance	595.7	601.3
Goodwill, Acquisitions and Adjustments	4.9	19.1
Goodwill, Currency Translation and Other	(25.2)	(24.7)
Goodwill, Ending Balance	575.4	595.7
Tonnage Gases [Member]
Goodwill, Beginning Balance	15.5	16.3
Goodwill, Acquisitions and Adjustments		(0.9)
Goodwill, Currency Translation and Other	(1.4)	0.1
Goodwill, Ending Balance	14.1	15.5
Electronics And Performance Materials [Member]
Goodwill, Beginning Balance	303.4	298.4
Goodwill, Acquisitions and Adjustments		0.3
Goodwill, Currency Translation and Other	(0.5)	4.7
Goodwill, Ending Balance	$ 302.9	$ 303.4

Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph e
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 43
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 68
-Subparagraph l
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6905597&loc=d3e13816-109267

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 72
-Subparagraph d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph e
-Clause 1
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 34
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Goodwill And Intangible Assets (Schedule Of Acquired Intangible Assets) (Details) $ in Millions	12 Months Ended
	Sep. 30, 2011 USD ($) years	Sep. 30, 2010 USD ($)
Gross	$ 448.1	$ 455.6
Accumulated Amortization	(187.4)	(169.9)
Net	260.7	285.7
Customer Relationships [Member]
Gross	271.2	283.3
Accumulated Amortization	(74.3)	(62.7)
Net	$ 196.9	220.6
Average Amortization Period (years) \| years	11.6
Patents And Technology [Member]
Gross	$ 98.0	99.0
Accumulated Amortization	(76.8)	(73.6)
Net	$ 21.2	25.4
Average Amortization Period (years) \| years	11.9
Other [Member]
Gross	$ 78.9	73.3
Accumulated Amortization	(36.3)	(33.6)
Net	$ 42.6	$ 39.7
Average Amortization Period (years) \| years	30.3

Goodwill And Intangible Assets (Schedule Of Projected Annual Amortization Expense For Intangible Assets) (Details) $ in Millions	12 Months Ended
	Sep. 30, 2011 USD ($)
Goodwill And Intangible Assets [Abstract]
2012	$ 21.1
2013	20.4
2014	19.8
2015	19.5
2016	17.8
Thereafter	162.1
Total future amortization expense	$ 260.7

Leases (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
Leases (Narrative) (Details) - USD ($) $ in Millions	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Leases [Abstract]
Capital leases	$ 20.3	$ 18.2
Capital lease accumulated depreciation	12.0	12.1
Operating leases, rent expense	96.7	93.0	$ 89.9
Capital lease obligations, current	2.2	1.4
Capital lease obligations, long-term	5.3	8.4
Future capital lease payment	7.5	9.8
Lease payments collected	$ 84.6	$ 68.0	$ 53.6

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal, through the balance sheet date and due to be paid within one year (or one operating cycle, if longer) of the balance sheet date.

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal, through the balance sheet date and due to be paid more than one year (or one operating cycle, if longer) after the balance sheet date.

Leases (Schedule Of Minimum Lease Payments Due) (Details) $ in Millions	Sep. 30, 2011 USD ($)
Leases [Abstract]
Capital leases, future minimum payments due 2012	$ 2.8
Capital leases, future minimum payments due 2013	1.6
Capital leases, future minimum payments due 2014	1.3
Capital leases, future minimum payments due 2015	1.1
Capital leases, future minimum payments due 2016	1.0
Capital leases, future minimum payments due thereafter	1.3
Capital leases, future minimum payments due, Total	9.1
Operating leases, future minimum payments due 2012	53.3
Operating leases, future minimum payments due 2013	43.7
Operating leases, future minimum payments due 2014	34.6
Operating leases, future minimum payments due 2015	28.9
Operating leases, future minimum payments due 2016	24.4
Operating leases, future minimum payments due thereafter	35.4
Operating leases, future minimum payments due, Total	$ 220.3

Leases (Schedule Of Lease Receivables) (Details) - USD ($) $ in Millions	Sep. 30, 2011	Sep. 30, 2010
Leases [Abstract]
Gross minimum lease payments receivable	$ 1,663.2	$ 1,195.5
Unearned interest income	(573.3)	(386.0)
Lease Receivables, net	$ 1,089.9	$ 809.5

Amount of remaining payments as of the balance sheet date that lessees are obligated to make or can be required to make under sales-type leases, including any guarantee of residual value and executory costs. The amount also includes any guaranteed rental payments by an unrelated third-party provided that are financially capable of making such payments.

Leases (Schedule Of Minimum Lease Payment Collections As Lessor) (Details) $ in Millions	Sep. 30, 2011 USD ($)
Leases [Abstract]
2012	$ 120.9
2013	130.8
2014	129.2
2015	127.1
2016	125.2
Thereafter	1,030.0
Capital Leases, Future Minimum Payments Receivable, Total	$ 1,663.2

Financial Instruments (Schedule Of Outstanding Currency Price Risk Management Instruments) (Details) - Forward Exchange Contracts [Member] $ in Millions	12 Months Ended
	Sep. 30, 2011 USD ($) years	Sep. 30, 2010 USD ($) years
US$ Notional \| $	$ 2,374.2	$ 2,627.6
Years Average Maturity \| years	0.8	1.1
Cash Flow Hedges [Member]
US$ Notional \| $	$ 1,512.1	$ 1,605.5
Years Average Maturity \| years	0.4	0.5
Net Investment Hedges [Member]
US$ Notional \| $	$ 635.8	$ 648.5
Years Average Maturity \| years	2.0	3.0
Not Designated [Member]
US$ Notional \| $	$ 226.3	$ 373.6
Years Average Maturity \| years	0.1	0.2

Financial Instruments (Options Contract) (Narrative) (Details) € in Millions, $ in Millions	12 Months Ended
	Sep. 30, 2011 EUR (€)	Sep. 30, 2010 TWD ($)	Sep. 30, 2010 EUR (€)
Foreign Currency Debt [Member]
Amounts included in designated foreign currency denominated debt	€ 742.1	$ 967.0	€ 782.1
Intercompany Loan [Member]
Amounts included in qualifying intercompany loans	€ 437.0		€ 437.0
Forward Exchange Contracts [Member]
Maximum length of time of hedged exposures, years	1.9

For an unclassified balance sheet, total of debt securities categorized neither as held-to-maturity nor trading.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 115
-Paragraph 13
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 115
-Paragraph 12
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 22
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 115
-Paragraph 16
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 115
-Paragraph 137
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 25
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6379932&loc=d3e22054-111558

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26610-111562

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 320
-Section 50
-Paragraph 2
-Subparagraph (b)-(g)
-URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number FAS115-1/124-1
-Paragraph 15C
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number FAS115-1/124-1
-Paragraph 15D
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Cash Flow Hedges [Member]

Financial Instruments (Schedule Of Interest Rate Swaps And Cross Currency Interest Rate Swaps) (Details) $ in Millions	12 Months Ended
	Sep. 30, 2011 USD ($) years	Sep. 30, 2010 USD ($) years
Interest Rate Swap Contracts [Member]
Maximum length of time of hedged exposures, years	0.4
Interest Rate Swap Contracts [Member] \| Fair Value Hedges [Member]
US$ Notional \| $	$ 583.9	$ 617.0
Pay %	LIBOR	LIBOR
Average Receive %	3.38%	3.66%
Years Average Maturity	4.5	3.8
Interest Rate Swap Contracts [Member] \| Cash Flow Hedges [Member]
US$ Notional \| $	$ 300.0
Pay %	2.33%
Average Receive %	LIBOR
Years Average Maturity	0.4
Cross Currency Interest Rate Swaps (Net Investment Hedge) [Member]
US$ Notional \| $	$ 32.2	$ 32.2
Pay %	5.54%	5.54%
Average Receive %	5.48%	5.48%
Years Average Maturity	2.5	3.5

Financial Instruments (Fair Value Of Derivative Instruments) (Details) - USD ($) $ in Millions	Sep. 30, 2011	Sep. 30, 2010
Total Derivatives, Assets	$ 118.2	$ 114.4
Total Derivatives, Liabilities	43.8	54.2
Designated As Hedging Instrument [Member]
Total Derivatives, Assets	115.2	108.2
Total Derivatives, Liabilities	40.0	45.9
Designated As Hedging Instrument [Member] \| Other Receivables [Member] \| Interest Rate Swap Contracts [Member]
Total Derivatives, Assets	5.8	6.6
Designated As Hedging Instrument [Member] \| Other Receivables [Member] \| Foreign Exchange Forward [Member]
Total Derivatives, Assets	22.0	29.8
Designated As Hedging Instrument [Member] \| Other Noncurrent Assets [Member] \| Interest Rate Swap Contracts [Member]
Total Derivatives, Assets	42.4	33.1
Designated As Hedging Instrument [Member] \| Other Noncurrent Assets [Member] \| Forward Exchange Contracts [Member]
Total Derivatives, Assets	45.0	38.7
Designated As Hedging Instrument [Member] \| Accrued Liabilities [Member] \| Interest Rate Swap Contracts [Member]
Total Derivatives, Liabilities	3.8	1.3
Designated As Hedging Instrument [Member] \| Accrued Liabilities [Member] \| Foreign Exchange Forward [Member]
Total Derivatives, Liabilities	33.0	22.3
Designated As Hedging Instrument [Member] \| Other Noncurrent Liabilities [Member] \| Interest Rate Swap Contracts [Member]
Total Derivatives, Liabilities	2.2	2.4
Designated As Hedging Instrument [Member] \| Other Noncurrent Liabilities [Member] \| Forward Exchange Contracts [Member]
Total Derivatives, Liabilities	1.0	19.9
Not Designated [Member] \| Other Receivables [Member] \| Forward Exchange Contracts [Member]
Total Derivatives, Assets	3.0	6.2
Not Designated [Member] \| Accrued Liabilities [Member] \| Forward Exchange Contracts [Member]
Total Derivatives, Liabilities	$ 3.8	$ 8.3

Financial Instruments (Schedule Of Gain/Loss Related To Derivative Instruments) (Details) - USD ($)
$ in Millions

12 Months Ended

Sep. 30, 2011

Sep. 30, 2010

Net gain (loss) recognized in OCI (effective portion)

$ 0.8

$ (11.6)

Net (gain) loss reclassified from OCI to sales/cost of sales (effective portion)

8.4

7.6

Net loss reclassified from OCI to other income (effective portion)

1.2

6.2

Net loss reclassified from OCI to interest expense (effective portion)

1.2

Net (gain) loss reclassified from OCI to other income (ineffective portion)

0.7

(0.2)

Cash Flow Hedges [Member] | Forward Exchange Contracts [Member]

Net gain (loss) recognized in OCI (effective portion)

6.4

(11.3)

Net (gain) loss reclassified from OCI to sales/cost of sales (effective portion)

8.4

9.6

Net loss reclassified from OCI to other income (effective portion)

1.2

6.2

Net (gain) loss reclassified from OCI to other income (ineffective portion)

0.7

(0.2)

Cash Flow Hedges [Member] | Other Contracts [Member]

Net gain (loss) recognized in OCI (effective portion)

^[1]

(5.6)

(0.3)

Net (gain) loss reclassified from OCI to sales/cost of sales (effective portion)

^[1]

(2.0)

Net loss reclassified from OCI to interest expense (effective portion)

^[1]

1.2

Net Investment Hedges [Member]

Net Investment Hedges [Member] | Forward Exchange Contracts [Member]

22.6

168.6

Net Investment Hedges [Member] | Foreign Currency Debt [Member]

5.7

58.4

Net Investment Hedges [Member] | Other Contracts [Member]

16.9

109.8

Net (loss) recognized in other income

^[1]

0.4

Not Designated [Member]

^[2]

(5.8)

(24.7)

Not Designated [Member] | Forward Exchange Contracts [Member]

Net (loss) recognized in other income

^[2]

(5.8)

(24.7)

Fair Value Hedges [Member]

Net gain recognized in interest expense

^[3]

9.4

19.7

Fair Value Hedges [Member] | Other Contracts [Member]

Net gain recognized in interest expense

^[1],[3]

$ 9.4

$ 19.7

[1]	Other includes the impact on other comprehensive income (OCI) and earnings primarily related to interest rate swaps.
[2]	The impact of the non-designated hedges noted above was largely offset by gains and losses, respectively, resulting from the impact of changes in exchange rates on recognized assets and liabilities denominated in nonfunctional currencies.
[3]	The impact of fair value hedges noted above was largely offset by gains and losses resulting from the impact of changes in related interest rates on recognized outstanding debt.

Financial Instruments (Credit Risk-Related Contingent Features) (Narrative) (Details) - USD ($) $ in Millions	Sep. 30, 2011	Sep. 30, 2010
Financial Instruments [Abstract]
Net liability position of derivatives with credit risk-related contingent features	$ 10.5	$ 4.2

Financial Instruments (Counterparty Credit Risk Management) (Narrative) (Details) - USD ($) $ in Millions	Sep. 30, 2011	Sep. 30, 2010
Financial Instruments [Abstract]
Collateral amount that counterparties would be required to post	$ 66.1	$ 52.2

Fair Value Measurements (Narrative) (Details) - USD ($) $ in Millions	Sep. 30, 2011	Sep. 30, 2010
Agreements to purchase the remaining shares	25.00%
Airgas [Member]
Available-for-sale securities		$ 102.5
Unrealized appreciation of this investment carried at fair value, after tax		20.6
Unrealized appreciation of this investment carried at fair value		$ 32.9

For an unclassified balance sheet, this item represents investments in debt and equity securities which are categorized neither as held-to-maturity nor trading.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 115
-Paragraph 13
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 115
-Paragraph 12
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 22
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 115
-Paragraph 16
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 115
-Paragraph 14
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 25
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6379932&loc=d3e22054-111558

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26610-111562

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number FAS115-1/124-1
-Paragraph 15C
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number FAS115-1/124-1
-Paragraph 15D
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number FAS115-1/124-1
-Paragraph 15E
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Fair Value Measurements (Schedule Of Carrying Values And Fair Values Of Financial Instruments) (Details) - USD ($) $ in Millions	Sep. 30, 2011	Sep. 30, 2010
Other investments		$ 1.1
Other liabilities	$ 51.0	42.0
Airgas [Member]
Available-for-sale securities		102.5
Carrying Value [Member]
Other investments		1.1
Long-term debt, including current portion	3,999.7	3,842.3
Other liabilities	51.0	42.0
Carrying Value [Member] \| Airgas [Member]
Available-for-sale securities		102.5
Fair Value [Member]
Other investments		1.1
Long-term debt, including current portion	4,284.5	4,146.4
Other liabilities	51.0	42.0
Fair Value [Member] \| Airgas [Member]
Available-for-sale securities		102.5
Interest Rate Swap Contracts [Member]
Derivative assets	48.2	39.7
Derivative liabilities	6.0	3.7
Interest Rate Swap Contracts [Member] \| Carrying Value [Member]
Derivative assets	48.2	39.7
Derivative liabilities	6.0	3.7
Interest Rate Swap Contracts [Member] \| Fair Value [Member]
Derivative assets	48.2	39.7
Derivative liabilities	6.0	3.7
Foreign Exchange Forward [Member]
Derivative assets	70.0	74.7
Derivative liabilities	37.8	50.5
Foreign Exchange Forward [Member] \| Carrying Value [Member]
Derivative assets	70.0	74.7
Derivative liabilities	37.8	50.5
Foreign Exchange Forward [Member] \| Fair Value [Member]
Derivative assets	70.0	74.7
Derivative liabilities	$ 37.8	$ 50.5

Fair Value Measurements (Schedule Of Fair Value Of Assets And Liabilities) (Details) - USD ($) $ in Millions	Sep. 30, 2011	Sep. 30, 2010
Other investments		$ 1.1
Total Assets at Fair Value	$ 118.2	218.0
Other liabilities	51.0	42.0
Total Liabilities at Fair Value	94.8	96.2
Airgas [Member]
Available-for-sale securities		102.5
Level 1 [Member]
Other investments		1.1
Total Assets at Fair Value		103.6
Other liabilities
Total Liabilities at Fair Value
Level 1 [Member] \| Airgas [Member]
Available-for-sale securities		102.5
Level 2 [Member]
Other investments
Total Assets at Fair Value	118.2	114.4
Other liabilities
Total Liabilities at Fair Value	43.8	54.2
Level 2 [Member] \| Airgas [Member]
Available-for-sale securities
Level 3 [Member]
Other investments
Total Assets at Fair Value
Other liabilities	51.0	42.0
Total Liabilities at Fair Value	51.0	42.0
Level 3 [Member] \| Airgas [Member]
Available-for-sale securities
Fair Value [Member]
Other investments		1.1
Other liabilities	51.0	42.0
Fair Value [Member] \| Airgas [Member]
Available-for-sale securities		102.5
Interest Rate Swap Contracts [Member]
Derivative assets	48.2	39.7
Derivative liabilities	6.0	3.7
Interest Rate Swap Contracts [Member] \| Level 1 [Member]
Derivative assets
Derivative liabilities
Interest Rate Swap Contracts [Member] \| Level 2 [Member]
Derivative assets	48.2	39.7
Derivative liabilities	6.0	3.7
Interest Rate Swap Contracts [Member] \| Level 3 [Member]
Derivative assets
Derivative liabilities
Interest Rate Swap Contracts [Member] \| Fair Value [Member]
Derivative assets	48.2	39.7
Derivative liabilities	6.0	3.7
Foreign Exchange Forward [Member]
Derivative assets	70.0	74.7
Derivative liabilities	37.8	50.5
Foreign Exchange Forward [Member] \| Level 1 [Member]
Derivative assets
Derivative liabilities
Foreign Exchange Forward [Member] \| Level 2 [Member]
Derivative assets	70.0	74.7
Derivative liabilities	37.8	50.5
Foreign Exchange Forward [Member] \| Level 3 [Member]
Derivative assets
Derivative liabilities
Foreign Exchange Forward [Member] \| Fair Value [Member]
Derivative assets	70.0	74.7
Derivative liabilities	$ 37.8	$ 50.5

Fair Value Measurements (Schedule Of Changes In Fair Value Of Other Liabilities) (Details) $ in Millions	12 Months Ended
	Sep. 30, 2011 USD ($)
Beginning balance	$ 42.0
Ending balance	51.0
Level 3 [Member]
Beginning balance	42.0
Expense included in interest expense	3.4
Currency translation adjustment	(0.5)
Adjustment to initial estimate	6.1
Ending balance	$ 51.0

Pre tax adjustment that results from the process of translating subsidiary financial statements and foreign equity investments into functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains (losses). Includes gain (loss) on foreign currency forward exchange contracts. Includes foreign currency transactions designated as hedges of net investment in a foreign entity and intercompany foreign currency transactions that are of a long-term nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements. Includes the gain (loss) on a derivative instrument or nonderivative financial instrument that may give rise to a foreign currency transaction gain (loss) that has been designated and qualified as a hedging instrument for hedging of the foreign currency exposure of a net investment in a foreign operation.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 45
-Subparagraph c
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 24
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 14, 17, 19, 26
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 52
-Paragraph 13, 20, 31
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e637-108580

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 55
-Paragraph 2
-Subparagraph (a)-(c)
-URI http://asc.fasb.org/extlink&oid=6920433&loc=d3e998-108581

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 20
-Section 35
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6939497&loc=d3e30304-110892

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section 45
-Paragraph 20
-Subparagraph (b),(d)
-URI http://asc.fasb.org/extlink&oid=6915805&loc=d3e32211-110900

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph c(3)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Debt (Narrative) (Details) $ in Millions	12 Months Ended
Debt (Narrative) (Details) $ in Millions	Sep. 30, 2011 USD ($)	Sep. 30, 2010 USD ($)	Sep. 30, 2009 USD ($)
Short-term debt, weighted average interest rate	2.50%	3.20%
Cash paid for interest, net of amounts capitalized	$ 117.4	$ 126.9	$ 127.6
Ratio of total debt to EBITDA, debt covenant		3.0
Ratio of long-term debt to equity, debt covenant	60.00%
Additional commitments	$ 474.2
Outstanding borrowings under additional commitments	$ 419.1
Amended Term Loan Credit Facility [Member]
Credit facility maturity date	4 June 2011
Multicurrency Revolving Facility [Member]
Credit facility maturity date		8 July 2013
Maximum borrowing capacity	$ 2,170.0	$ 2,000.0
Increase in line of credit facility	$ 170.0
Amended Multicurrency Revolving Facility [Member]
Credit facility maturity date	30 June 2015
Maximum borrowing capacity	$ 2,170.0
Eurobonds 4.25% [Member]
Interest rate of debt	4.25%
Maturity date	2012
Note 2.0% [Member]
Interest rate of debt	2.00%
Maturity date	2016
Debt instrument maturity date	Aug. 02, 2016
Senior Notes	$ 350.0
Note 3.0% [Member]
Interest rate of debt	3.00%
Maturity date	2021
Debt instrument maturity date	Nov. 03, 2021
Senior Notes	$ 400.0

Debt (Schedule Of Total Debt) (Details) - USD ($) $ in Millions	Sep. 30, 2011	Sep. 30, 2010
Debt [Abstract]
Short-term borrowings	$ 562.5	$ 286.0
Current portion of long-term debt	72.2	182.5
Long-term debt	3,927.5	3,659.8
Total Debt	$ 4,562.2	$ 4,128.3

Debt (Schedule Of Short-Term Borrowings) (Details) - USD ($) $ in Millions	Sep. 30, 2011	Sep. 30, 2010
Debt [Abstract]
Bank obligations	$ 562.5	$ 225.1
Short-term borrowings associated with SAGA acquisition		60.9
Total Short-term Borrowings	$ 562.5	$ 286.0

Debt (Schedule Of Long-Term Debt) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Capital Lease Obligations	$ 7.5	$ 9.8
Less: Unamortized discount	(7.4)	(9.1)
Long-term debt	3,999.7	3,842.3
Less: Current portion	(72.2)	(182.5)
Total Long-term Debt	3,927.5	3,659.8
Debentures 8.75% [Member]
Senior Notes	$ 18.4	18.4
Debt Instrument, Maturity Date Range, Start	2021
Debt Instrument, Maturity Date Range, End	2021
Interest rate of debt	8.75%
Series D 7.3% [Member]
Medium-term Notes	$ 32.1	63.1
Debt Instrument, Maturity Date Range, Start	2016
Debt Instrument, Maturity Date Range, End	2016
Interest rate of debt	7.30%
Series E 7.6% [Member]
Medium-term Notes	$ 17.2	17.2
Debt Instrument, Maturity Date Range, Start	2026
Debt Instrument, Maturity Date Range, End	2026
Interest rate of debt	7.60%
Series G 4.1% [Member]
Medium-term Notes		125.0
Debt Instrument, Maturity Date Range, Start	2011
Debt Instrument, Maturity Date Range, End	2011
Interest rate of debt	4.10%
Note 4.15% [Member]
Senior Notes	$ 300.0	300.0
Debt Instrument, Maturity Date Range, Start	2013
Debt Instrument, Maturity Date Range, End	2013
Interest rate of debt	4.15%
Note 2.0% [Member]
Senior Notes	$ 350.0
Debt Instrument, Maturity Date Range, Start	2016
Debt Instrument, Maturity Date Range, End	2016
Interest rate of debt	2.00%
Note 4.375% [Member]
Senior Notes	$ 400.0	400.0
Debt Instrument, Maturity Date Range, Start	2019
Debt Instrument, Maturity Date Range, End	2019
Interest rate of debt	4.375%
Variable-Rate Industrial Revenue Bonds 0.1% [Member]
Other Debt	$ 975.1	975.1
Debt Instrument, Maturity Date Range, Start	<font style="font-family: ARIAL;" class="_mt" size="2">2016</font>
Debt Instrument, Maturity Date Range, End	2050
Interest rate of debt	0.10%
Other 2.1% [Member]
Other Debt	$ 58.5	55.1
Debt Instrument, Maturity Date Range, Start	<font style="font-family: ARIAL;" class="_mt" size="2">2012 </font>
Debt Instrument, Maturity Date Range, End	2019
Interest rate of debt	2.10%
Eurobonds 4.25% [Member]
Debt payable in other currencies	$ 401.6	408.1
Debt Instrument, Maturity Date Range, Start	2012
Debt Instrument, Maturity Date Range, End	2012
Interest rate of debt	4.25%
Eurobonds 3.75% [Member]
Debt payable in other currencies	$ 401.6	408.1
Debt Instrument, Maturity Date Range, Start	2014
Debt Instrument, Maturity Date Range, End	2014
Interest rate of debt	3.75%
Eurobonds 3.875% [Member]
Debt payable in other currencies	$ 401.6	408.1
Debt Instrument, Maturity Date Range, Start	2015
Debt Instrument, Maturity Date Range, End	2015
Interest rate of debt	3.875%
Eurobonds 4.625% [Member]
Debt payable in other currencies	$ 401.6	408.1
Debt Instrument, Maturity Date Range, Start	2017
Debt Instrument, Maturity Date Range, End	2017
Interest rate of debt	4.625%
Other 5.1% [Member]
Debt payable in other currencies	$ 241.9	255.3
Debt Instrument, Maturity Date Range, Start	<font style="font-family: ARIAL;" class="_mt" size="2">2012 </font>
Debt Instrument, Maturity Date Range, End	2018
Interest rate of debt	5.10%
United States 5.0% [Member]
Capital Lease Obligations	$ 4.8	5.5
Debt Instrument, Maturity Date Range, Start	<font style="font-family: ARIAL;" class="_mt" size="2">2012</font>
Debt Instrument, Maturity Date Range, End	2018
Interest rate of debt	5.00%
Foreign 3.9% [Member]
Capital Lease Obligations	$ 2.7	$ 4.3
Debt Instrument, Maturity Date Range, Start	<font style="font-family: ARIAL;" class="_mt" size="2">2013 </font>
Debt Instrument, Maturity Date Range, End	2017
Interest rate of debt	3.90%

Debt (Schedule Of Maturities Of Long-Term Debt) (Details) - USD ($) $ in Millions	Sep. 30, 2011	Sep. 30, 2010
Debt [Abstract]
2012	$ 473.8
2013	333.9
2014	475.7
2015	479.2
2016	402.0
Thereafter	1,835.1
Long-term debt	$ 3,999.7	$ 3,842.3

Retirement Benefits (Narrative) (Details) $ in Millions	3 Months Ended				12 Months Ended
Retirement Benefits (Narrative) (Details) $ in Millions	Sep. 30, 2010 USD ($)	Jun. 30, 2010 USD ($)	Mar. 31, 2010 USD ($)	Dec. 31, 2009 USD ($)	Sep. 30, 2011 USD ($) shares	Sep. 30, 2010 USD ($)	Sep. 30, 2009 USD ($)
Recognized settlement charges	$ 5.2	$ 6.3				$ 11.5	$ 10.7
ABO for defined benefit pension plans	$ 3,327.6				$ 3,379.5	3,327.6
Shares of common stock in ESOP \| shares					4,935,196
RSP contributions expensed to income					$ 31.3	30.8	30.6
Maximum age limit for retirees to be eligible for healthcare benefits					65
Unfunded Plans [Member]
Pension arrangements not funded because of jurisdictional practice, accumulated benefit obligation					$ 136.4
Pension arrangements not funded because of jurisdictional practice, projected benefit obligation					$ 161.7
Global Cost Reduction Plan [Member]
Special termination benefits						$ 2.8	28.5
Curtailments							$ 3.8
Other Postretirement Benefits [Member]
Net periodic postretirement cost discount rate					2.80%	4.20%	7.40%
Accumulated postretirement benefit obligation discount rate	2.80%				3.70%	2.80%
Net actuarial loss					$ 2.7
Net actuarial loss	$ 35.5				29.2	$ 35.5
Minimum [Member]
Total expected contributions for 2012					40.0
Maximum [Member]
Total expected contributions for 2012					$ 60.0

Retirement Benefits (Components Of Net Periodic Benefit Cost) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
U.S. [Member]
Service cost	$ 43.6	$ 42.5	$ 33.9
Interest cost	122.8	123.4	124.0
Expected return on plan assets	(179.4)	(164.3)	(146.5)
Prior service cost (credit) amortization	2.6	2.7	2.6
Actuarial loss amortization	63.9	46.9	6.2
Settlements and curtailments		10.7	9.7
Special termination benefits		(0.9)	7.2
Other
Net Periodic Benefit Cost	53.5	61.0	37.1
International [Member]
Service cost	29.5	24.2	26.6
Interest cost	64.2	60.2	60.9
Expected return on plan assets	(68.1)	(64.3)	(55.3)
Prior service cost (credit) amortization	0.6	0.7	1.3
Actuarial loss amortization	30.9	19.9	10.8
Settlements and curtailments	1.0	0.8	4.8
Special termination benefits	0.3	4.2	22.1
Other	2.2	2.3	1.7
Net Periodic Benefit Cost	60.6	48.0	72.9
Other Postretirement Benefits [Member]
Service cost	5.7	4.7	4.0
Interest cost	3.3	4.6	6.5
Prior service cost (credit) amortization		(0.1)	(1.4)
Actuarial loss amortization	3.8	2.9	0.1
Net Periodic Benefit Cost	$ 12.8	$ 12.1	$ 9.2

Retirement Benefits (Weighted Average Assumptions Used In The Calculation Of Net Periodic Pension Cost) (Details)	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
U.S. [Member]
Discount rate	5.10%	5.70%	7.60%
Expected return on plan assets	8.80%	8.80%	8.80%
Rate of compensation increase	4.00%	4.30%	4.30%
International [Member]
Discount rate	4.90%	5.50%	6.50%
Expected return on plan assets	6.60%	7.30%	7.40%
Rate of compensation increase	3.80%	3.70%	4.40%

Retirement Benefits (Weighted Average Assumptions Used In The Calculation Of PBO) (Details)	Sep. 30, 2011	Sep. 30, 2010
U.S. [Member]
Discount rate	4.90%	5.10%
Rate of compensation increase	4.00%	4.00%
International [Member]
Discount rate	5.50%	4.90%
Rate of compensation increase	3.80%	3.80%

Retirement Benefits (Change In PBO, Change In Fair Value Of Plan Assets And Amounts Recognized In The Consolidated Balance Sheets) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Fair value at beginning of year	$ 171.0	$ 152.4
Fair value at end of year	189.6	171.0	$ 152.4
Accrued liabilities	33.8	238.8
U.S. [Member]
Obligation at beginning of year	2,446.2	2,210.5
Service cost	43.6	42.5	33.9
Interest cost	122.8	123.4	124.0
Amendments	0.6	1.3
Actuarial (gain) loss	93.3	176.9
Curtailments
Settlements		(20.0)
Special termination benefits		(0.9)	7.2
Participant contributions
Currency translation/other
Obligation at End of Year	2,605.9	2,446.2	2,210.5
Fair value at beginning of year	1,727.2	1,457.7
Actual return on plan assets	36.4	153.5
Company contributions	181.3	227.5
Participant contributions
Benefits paid	(100.6)	(87.5)
Settlements		(24.0)
Currency translation/other
Fair value at end of year	1,844.3	1,727.2	1,457.7
Funded Status at End of Year	(761.6)	(719.0)
Noncurrent assets
Accrued liabilities	10.3	178.2
Noncurrent liabilities	751.3	540.8
Net Amount Recognized	(761.6)	(719.0)
International [Member]
Obligation at beginning of year	1,307.4	1,175.5
Service cost	29.5	24.2	26.6
Interest cost	64.2	60.2	60.9
Amendments		1.0
Actuarial (gain) loss	(183.6)	115.0
Curtailments	(0.4)	(1.2)
Settlements	(5.1)
Special termination benefits	0.3	4.2	22.1
Participant contributions	3.7	4.1
Currency translation/other	(13.1)	(27.6)
Obligation at End of Year	1,159.9	1,307.4	1,175.5
Fair value at beginning of year	984.4	793.3
Actual return on plan assets	(7.0)	77.7
Company contributions	59.7	179.1
Participant contributions	3.7	4.1
Benefits paid	(43.0)	(48.0)
Settlements	(5.1)
Currency translation/other	(13.3)	(21.8)
Fair value at end of year	979.4	984.4	793.3
Funded Status at End of Year	(180.5)	(323.0)
Noncurrent assets	6.5
Accrued liabilities	23.5	60.6
Noncurrent liabilities	163.5	262.4
Net Amount Recognized	(180.5)	(323.0)
Other Postretirement Benefits [Member]
Obligation at beginning of year	120.9	116.0
Service cost	5.7	4.7	4.0
Interest cost	3.3	4.6	6.5
Actuarial (gain) loss	(2.5)	7.8
Obligation at End of Year	113.8	120.9	$ 116.0
Benefits paid	(13.6)	(12.2)
Accrued liabilities	12.8	13.7
Noncurrent liabilities	$ 101.0	$ 107.2

Retirement Benefits (Changes In Plan Assets And Benefit Obligation Recognized In Accumulated Other Comprehensive Income (Loss) On Pretax Basis) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
U.S. [Member]
Net actuarial loss (gain) arising during the period	$ 236.5	$ 191.6
Amortization of net actuarial loss	(63.9)	(57.6)
Prior service cost arising during the period	0.6	1.3
Amortization of prior service credit (cost)	(2.6)	(2.7)
Total recognized in Other Comprehensive Income	170.6	132.6
International [Member]
Net actuarial loss (gain) arising during the period	(108.8)	103.2
Amortization of net actuarial loss	(31.9)	(20.7)
Prior service cost arising during the period		1.0
Amortization of prior service credit (cost)	(0.6)	(0.7)
Total recognized in Other Comprehensive Income	(141.3)	82.8
Other Postretirement Benefits [Member]
Net actuarial loss (gain) arising during the period	(2.5)	7.8
Amortization of net actuarial loss	(3.8)	(2.9)
Amortization of prior service credit (cost)		0.1
Total recognized in Other Comprehensive Income	$ (6.3)	$ 5.0

The change in other comprehensive income due to the amortization of the net prior service costs (credit) into net periodic pension costs.

The pretax cost (credit) of benefit changes attributable to plan participants' prior service resulting from a plan amendment or plan initiation that occurred during the period. The cost has not yet been recognized in net periodic benefit cost. A plan amendment includes provisions that grant increased (decreased) benefits based on service rendered in prior periods.

Amounts recognized in other comprehensive income (but not yet recognized in net periodic benefit cost), including the net gain (loss) and net prior service cost (credit) arising during the period. Also includes reclassification adjustments out of other comprehensive income as a result of being recognized as components of net periodic benefit cost for the period. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Article 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 158
-Paragraph 7
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph C3
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 14, 17, 22, 26
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 55
-Paragraph 2
-Subparagraph (h)-(j)
-URI http://asc.fasb.org/extlink&oid=6920433&loc=d3e998-108581

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph c(3)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Pretax change in the value of either the benefit obligation or the plan assets resulting from experience different from that assumed or from a change in an actuarial assumption, or the consequence of a decision to temporarily deviate from the substantive plan, that has not been recognized in net periodic benefit cost.

The net gain (loss) previously recognized in other comprehensive income that is a reclassification adjustment of other comprehensive income as a result of being recognized as a component of net periodic benefit cost for the period.

Retirement Benefits (Components Recognized In Accumulated Other Comprehensive Income (Loss) On Pretax Basis) (Details) - USD ($) $ in Millions	Sep. 30, 2011	Sep. 30, 2010
U.S. [Member]
Net actuarial loss	$ 1,283.5	$ 1,110.9
Prior service cost	14.9	16.9
Net transition liability
Total recognized in AOCL	1,298.4	1,127.8
International [Member]
Net actuarial loss	392.7	533.4
Prior service cost	6.5	7.1
Net transition liability	0.4	0.4
Total recognized in AOCL	$ 399.6	$ 540.9

Amount related to the pretax cost of benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation, which has not yet been recognized as components of net periodic benefit cost.

Of the original amount of transition assets as of the date FAS 87 or 106 was initially applied, (a) the fair value of plan assets plus any recognized accrued pension or other postretirement benefit cost or less any recognized prepaid pension or other postretirement benefit cost in excess of (b) the benefit obligation, the portion of which has yet to be recognized as components of net periodic benefit cost. Of the original amount of transition obligations as of the date FAS 87 or 106 was initially applied, (a) the benefit obligation in excess of (b) the fair value of plan assets plus any recognized accrued pension or other postretirement benefit cost or less any recognized prepaid pension or other postretirement benefit cost, the portion of which has yet to be recognized as components of net periodic benefit cost. This amount is pretax.

Retirement Benefits (Amount Of Accumulated Other Comprehensive Income (Loss) That Is Expected To Be Recognized During Fiscal Year 2012) (Details) $ in Millions	12 Months Ended
	Sep. 30, 2011 USD ($)
U.S. [Member]
Net actuarial loss	$ 76.0
Prior service cost	2.5
International [Member]
Net actuarial loss	15.2
Prior service cost	$ 0.4

Retirement Benefits (Actual And Target Allocations) (Details)	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
U.S. [Member]
Target Allocation, Equity securities, Minimum	60.00%
Target Allocation, Equity securities, Maximum	80.00%
Target Allocation, Debt securities, Minimum	20.00%
Target Allocation, Debt securities, Maximum	30.00%
Target Allocation, Real estate/other, Minimum	0.00%
Target Allocation, Real estate/other, Maximum	10.00%
Actual Allocation, Equity securities	66.00%	70.00%
Actual Allocation, Debt securities	28.00%	25.00%
Actual Allocation, Real estate/other	5.00%	4.00%
Actual Allocation, Cash	1.00%	1.00%
Actual Allocation, Total	100.00%	100.00%
International [Member]
Target Allocation, Equity securities, Minimum	53.00%
Target Allocation, Equity securities, Maximum	62.00%
Target Allocation, Debt securities, Minimum	35.00%
Target Allocation, Debt securities, Maximum	45.00%
Target Allocation, Real estate/other, Minimum	1.00%
Target Allocation, Real estate/other, Maximum	3.00%
Actual Allocation, Equity securities	53.00%	55.00%
Actual Allocation, Debt securities	43.00%	38.00%
Actual Allocation, Real estate/other	2.00%	2.00%
Actual Allocation, Cash	2.00%	5.00%
Actual Allocation, Total	100.00%	100.00%

Retirement Benefits (Summary Of Changes In Fair Value Of Pension Plan Assets Classified As Level 3) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Fair value at beginning of year	$ 171.0	$ 152.4
Assets held at end of year	15.1	9.9
Assets sold during the period	0.4	0.2
Purchases, sales, and settlements, net	3.1	8.5
Fair value at end of year	189.6	171.0
Real Estate Pooled Funds [Member]
Fair value at beginning of year	77.0	72.7
Assets held at end of year	15.3	4.3
Assets sold during the period
Purchases, sales, and settlements, net	9.0
Fair value at end of year	101.3	77.0
Other Pooled Funds [Member]
Fair value at beginning of year	17.9	13.0
Assets held at end of year	(0.5)	0.5
Assets sold during the period	0.4	0.2
Purchases, sales, and settlements, net	(1.1)	4.2
Fair value at end of year	16.7	17.9
Insurance Contracts [Member]
Fair value at beginning of year	76.1	66.7
Assets held at end of year	0.3	5.1
Assets sold during the period
Purchases, sales, and settlements, net	(4.8)	4.3
Fair value at end of year	$ 71.6	$ 76.1

Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

Retirement Benefits (Projected Benefit Payments) (Details) $ in Millions	Sep. 30, 2011 USD ($)
U.S. [Member]
2012	$ 104.5
2013	111.1
2014	117.2
2015	124.4
2016	132.2
2017-2021	790.3
International [Member]
2012	42.1
2013	45.2
2014	47.0
2015	49.6
2016	50.1
2017-2021	282.3
Other Postretirement Benefits [Member]
2012	13.0
2013	12.8
2014	12.7
2015	12.6
2016	12.7
2017-2021	$ 56.9

Retirement Benefits (Summary Of Pension Plans Where The Benefit Liability Exceeds The Value Of Plan Assets) (Details) - USD ($) $ in Millions	Sep. 30, 2011	Sep. 30, 2010
U.S. [Member]
Pension Plans with PBO in Excess of Plan Assets, PBO	$ 2,605.9	$ 2,446.2
Pension Plans with PBO in Excess of Plan Assets, Fair value of plan assets	1,844.3	1,727.2
Pension Plans with ABO in Excess of Plan Assets, ABO	2,316.5	2,121.5
Pension Plans with ABO in Excess of Plan Assets, Fair value of plan assets	1,844.3	1,727.2
International [Member]
Pension Plans with PBO in Excess of Plan Assets, PBO	1,015.9	1,294.8
Pension Plans with PBO in Excess of Plan Assets, Fair value of plan assets	828.9	971.2
Pension Plans with ABO in Excess of Plan Assets, ABO	923.2	1,170.4
Pension Plans with ABO in Excess of Plan Assets, Fair value of plan assets	$ 816.9	$ 944.5

Retirement Benefits (Assumed Healthcare Trend Rates) (Details)	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Retirement Benefits [Abstract]
Healthcare trend rate	8.00%	8.00%
Ultimate trend rate	5.00%	5.00%
Year the ultimate trend rate is reached	2015	2014

Commitments And Contingencies (Litigation And Environmental) (Narrative) (Details) R$ in Millions, $ in Millions	12 Months Ended
	Sep. 30, 2011 USD ($)	Sep. 30, 2010 BRL (R$)	Sep. 30, 2010 USD ($)
Civil fines imposed	$ 95.0	R$ 179.2
Environmental [Member]
Approximate number of sites company was designated a potentially responsible party by the Environmental Protection Agency	35
Accrual for environmental loss contingencies	$ 82.3		$ 87.0
Accruals for environmental loss contingencies, maximum payout period, years	30
Accruals for environmental loss contingencies, minimum exposure	$ 82.0
Accruals for environmental loss contingencies, maximum exposure	$ 96.0

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 9
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 11
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 10
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14326-108349

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14435-108349

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14557-108349

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 12
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Commitments And Contingencies (Pace) (Narrative) (Details) $ in Millions	12 Months Ended
	Sep. 30, 2011 USD ($)	Sep. 30, 2010 USD ($)	Sep. 30, 2009 USD ($)	Sep. 30, 2006 USD ($)
Pretax expense recognized as a component of income from discontinued operations	$ 34.0	$ 31.6	$ 52.5
Pace, Florida [Member]
Accrual for environmental loss contingencies	$ 35.2			$ 42.0
Accruals for environmental loss contingencies, maximum payout period, years	20
Environmental loss contingencies estimated costs through completion, minimum	$ 42.0
Environmental loss contingencies estimated costs through completion, maximum	$ 52.0
Discontinued Operations [Member] \| Pace, Florida [Member]
Pretax expense recognized as a component of income from discontinued operations				$ 42.0

The charge against earnings in the period for known or estimated future costs arising from requirements to perform environmental remediation activities.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 90-8
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Statement of Position (SOP)
-Number 96-1
-Paragraph 170
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 9, 10
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Statement of Position (SOP)
-Number 96-1
-Paragraph 147, 148, 149, 150
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 143
-Paragraph 2
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 410
-SubTopic 30
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13296-110859

Commitments And Contingencies (Piedmont) (Narrative) (Details) $ in Millions	12 Months Ended
	Sep. 30, 2011 USD ($)	Sep. 30, 2010 USD ($)	Sep. 30, 2009 USD ($)	Sep. 30, 2008 USD ($)
Pretax expense recognized as a component of income from discontinued operations	$ 34.0	$ 31.6	$ 52.5
Piedmont, Florida [Member]
Accruals for environmental loss contingencies, maximum payout period, years	15
Environmental loss contingencies estimated costs through completion, maximum	$ 24.0
Accrual for environmental loss contingencies	$ 21.0			$ 24.0
Discontinued Operations [Member] \| Piedmont, Florida [Member]
Pretax expense recognized as a component of income from discontinued operations				$ 24.0

The charge against earnings in the period for known or estimated future costs arising from requirements to perform environmental remediation activities.

Commitments And Contingencies (Paulsboro) (Narrative) (Details) - USD ($) $ in Millions	Sep. 30, 2011	Dec. 31, 2008
Paulsboro, New Jersey [Member]
Environmental liability recognized with associated site	$ 8.0	$ 16.0

Commitments And Contingencies (Guarantees And Warranties) (Narrative) (Details) $ in Millions	12 Months Ended
	Sep. 30, 2011 USD ($)
Terms of guaranteed repayment of unconsolidated equity affiliates borrowings, minimum (years)	2
Terms of guaranteed repayment of unconsolidated equity affiliates borrowings, maximum (years)	7
Maximum potential guaranteed debt repayments of unconsolidated equity affiliates	$ 22.7
Maximum potential payments under joint and several guarantees	$ 61.0
Exposures under the guarantee completion year	2024
Equity contributions or payments pertaining to guarantee obligation	$ 0.0
Trinidad Venture [Member] \| Guarantees and Warranties [Member]
Percentage of ownership in equity affiliate	50.00%

Commitments And Contingencies (Put Option Agreements) (Narrative) (Details) - San Fu Gas Company, Ltd. [Member] $ in Millions	12 Months Ended
	Sep. 30, 2011 USD ($)
Percentage of ownership	74.00%
Estimated purchase price for remaining stock	$ 270

Commitments And Contingencies (Agreement To Purchase Shares In Equity Affiliate) (Narrative) (Details)	Sep. 30, 2011
Abdullah Hashim Group [Member]
Percentage of ownership in equity affiliate	25.00%

Commitments And Contingencies (Future Payments Under Unconditional Purchase Obligations) (Details) $ in Millions	Sep. 30, 2011 USD ($)
Commitments And Contingencies [Abstract]
2012	$ 649
2013	121
2014	119
2015	117
2016	122
Thereafter	547
Total	1,675
Purchase commitments for additional plant and equipment included in FY2012 obligations	$ 510

Capital Stock (Narrative) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		12 Months Ended
	Sep. 15, 2011	Sep. 30, 2011	Sep. 30, 2007	Sep. 30, 2010
Capital Stock [Abstract]
Preferred stock, authorized shares		25.0
Preferred shares, par value, per share		$ 1
Preferred shares, outstanding		0.0
Common stock, authorized shares		300.0
Common stock, par value, per share		$ 1		$ 1
Authorized repurchase	$ 1,000.0		$ 1,000.0
Outstanding shares purchased		7.4
Purchase of treasury stock, value		$ 649.2
Authorized repurchase, remaining		$ 1,000.0

Capital Stock (Changes In Common Shares) (Details) - shares	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Capital Stock [Abstract]
Balance, beginning of year	213,802,865	211,260,264	209,334,627
Purchase of treasury shares	(7,433,612)
Issuance of treasury shares for stock option and award plans	3,816,003	2,542,601	1,925,637
Balance, end of year	210,185,256	213,802,865	211,260,264

Share-Based Compensation (Share-Based Compensation Cost Recognized In Income Statement) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Before-Tax Share-Based Compensation Cost	$ 44.8	$ 48.6	$ 60.4
Income tax benefit	(17.1)	(18.3)	(23.3)
After-Tax Share-Based Compensation Cost	27.7	30.3	37.1
Cost Of Sales [Member]
Before-Tax Share-Based Compensation Cost	3.8	4.0	7.9
Selling And Administrative [Member]
Before-Tax Share-Based Compensation Cost	39.5	42.5	46.9
Research And Development [Member]
Before-Tax Share-Based Compensation Cost	1.5	2.1	4.1
Global Cost Reduction Plan [Member]
Before-Tax Share-Based Compensation Cost			$ 1.5

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

Share-Based Compensation (Before-Tax Share-Based Compensation Cost By Program Type) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Before-Tax Share-Based Compensation Cost	$ 44.8	$ 48.6	$ 60.4
Stock Options [Member]
Before-Tax Share-Based Compensation Cost	21.4	25.0	38.3
Deferred Stock Units [Member]
Before-Tax Share-Based Compensation Cost	20.8	21.5	19.2
Restricted Stock [Member]
Before-Tax Share-Based Compensation Cost	$ 2.6	$ 2.1	$ 2.9

Share-Based Compensation (Stock Options) (Narrative) (Details) $ / shares in Units, $ in Millions	12 Months Ended
	Sep. 30, 2011 USD ($) $ / shares shares	Sep. 30, 2010 USD ($) $ / shares	Sep. 30, 2009 USD ($) $ / shares
Shares available for future grant \| shares	5,150,869
Exercisable period	ten years
Intrinsic value of stock options exercised	$ 180.8	$ 92.4	$ 62.1
Stock Options [Member]
General vesting period	incrementally over three years
Weighted average grant-date fair value of options \| $ / shares	$ 23.83	$ 25.94	$ 20.86
Closing stock price \| $ / shares	$ 76.37
Unrecognized compensation costs	$ 10.3
Nonvested stock option weighted average recognition period, years	1.9
Cash received from option exercises	$ 148.2
Tax benefit	62.7
Excess tax benefit	$ 45.8

Share-Based Compensation (Assumptions Used To Estimate Fair Value Of Options Granted) (Details)	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Share-Based Compensation [Abstract]
Expected volatility, minimum	29.20%
Expected volatility, maximum	30.00%
Expected volatility		32.60%	31.20%
Expected dividend yield	2.20%	2.10%	2.10%
Expected life (in years), minimum	7.0	6.8	6.8
Expected life (in years), maximum	8.7	8.0	8.0
Risk-free interest rate, minimum	2.40%	2.90%	3.50%
Risk-free interest rate, maximum	2.90%	3.30%	3.90%

Share-Based Compensation (Summary Of Stock Option Activity) (Details) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Sep. 30, 2011 USD ($) $ / shares shares
Share-Based Compensation [Abstract]
Outstanding at 30 September 2010, shares \| shares	16,435
Outstanding at 30 September 2010, weighted average exercise price \| $ / shares	$ 56.56
Granted, shares \| shares	932
Granted, weighted average exercise price \| $ / shares	$ 86.39
Exercised, shares \| shares	(3,753)
Exercised, weighted average exercise price \| $ / shares	$ 42.13
Forfeited, shares \| shares	(44)
Forfeited, weighted average exercise price \| $ / shares	$ 72.46
Outstanding at 30 September 2011, shares \| shares	13,570
Outstanding at 30 September 2011, weighted average exercise price \| $ / shares	$ 62.55
Exercisable at 30 September 2011, shares \| shares	11,375
Exercisable at 30 September 2011, weighted average exercise price \| $ / shares	$ 59.19
Outstanding at 30 September 2011, weighted average remaining contractual terms (in years)	4.5
Outstanding at 30 September 2011, aggregate intrinsic value \| $	$ 230
Exercisable at 30 September 2011, weighted average remaining contractual terms (in years)	3.7
Exercisable at 30 September 2011, aggregate intrinsic value \| $	$ 224

Share-Based Compensation (Deferred Stock Units) (Narrative) (Details) - Deferred Stock Units [Member] $ in Millions	12 Months Ended
	Sep. 30, 2011 USD ($)	Sep. 30, 2010 USD ($)	Sep. 30, 2009 USD ($)
Performance period	one to three years
Deferral period	three-, four-, or five-year
Service period	not to exceed 10 years after service ends
Cash payments for deferred stock units	$ 1.0	$ 1.4	$ 5.2
Unrecognized compensation costs	$ 29.5
Nonvested stock option weighted average recognition period, years	2.5
Fair value of deferred stock units	$ 26.3	$ 26.2	$ 22.1

Share-Based Compensation (Summary Of Deferred Stock Units) (Details) - Deferred Stock Units [Member] shares in Thousands	12 Months Ended
	Sep. 30, 2011 $ / shares shares
Outstanding at 30 September 2010, Shares \| shares	1,527
Outstanding at 30 September 2010, Weighted Average Grant-Date Fair Value \| $ / shares	$ 64.67
Granted, Shares \| shares	299
Granted, Weighted Average Grant-Date Fair Value \| $ / shares	$ 86.42
Paid out, Shares \| shares	(306)
Paid out, Weighted Average Grant-Date Fair Value \| $ / shares	$ 68.00
Forfeited/adjustments, Shares \| shares	(15)
Forfeited/adjustments, Weighted Average Grant-Date Fair Value \| $ / shares	$ 86.92
Outstanding at 30 September 2011, Shares \| shares	1,505
Outstanding at 30 September 2011, Weighted Average Grant-Date Fair Value \| $ / shares	$ 68.10

The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

Share-Based Compensation (Restricted Stock) (Narrative) (Details) - Restricted Stock [Member]	12 Months Ended
	Sep. 30, 2011 USD ($)	Sep. 30, 2010 USD ($)	Sep. 30, 2009 USD ($)
Vesting period	four years
Unrecognized compensation costs	$ 2,000,000
Nonvested stock option weighted average recognition period, years	2.8
Fair value of vested restricted stock	$ 1,600,000	$ 1,000,000	$ 0

Share-Based Compensation (Summary Of Restricted Stock) (Details) - Restricted Stock [Member] shares in Thousands	12 Months Ended
	Sep. 30, 2011 $ / shares shares
Outstanding at 30 September 2010, Shares \| shares	141
Outstanding at 30 September 2010, Weighted Average Grant-Date Fair Value \| $ / shares	$ 70.87
Granted, Shares \| shares	32
Granted, Weighted Average Grant-Date Fair Value \| $ / shares	$ 86.39
Vested, Shares \| shares	(19)
Vested, Weighted Average Grant-Date Fair Value \| $ / shares	$ 66.69
Outstanding at 30 September 2011, Shares \| shares	154
Outstanding at 30 September 2011, Weighted Average Grant-Date Fair Value \| $ / shares	$ 74.59

Noncontrolling Interests (Narrative) (Details) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2010 USD ($)	Sep. 30, 2011 USD ($)	Sep. 30, 2010 USD ($)	Sep. 30, 2009 USD ($)	Sep. 30, 2008
Agreements to purchase the remaining shares		25.00%
Carrying balance of noncontrolling interest		$ 142.9	$ 150.7
Decrease recognized in capital		6.1	28.3
Current liability related to the purchase of shares from noncontrolling interests		51.0
Noncurrent liability related to the purchase of shares from noncontrolling interests			$ 42.0
CryoService Limited [Member]
Increased ownership interest percentage, from					25.00%
Increased ownership interest percentage, to					72.00%
Put options, maximum time period of exercise each year (days)					20
Agreements to purchase the remaining shares			25.00%
Carrying balance of noncontrolling interest			$ 10.8
Decrease recognized in capital			28.3
Adjustment to initial estimate	$ 6.1
Current liability related to the purchase of shares from noncontrolling interests		$ 51.0
Noncurrent liability related to the purchase of shares from noncontrolling interests			$ 42.0

Noncontrolling Interests (Schedule Of Changes In Ownership Interests) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2009	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Noncontrolling Interests [Abstract]
Net income attributable to Air Products	$ 324.8	$ 326.5	$ 304.3	$ 268.6	$ 272.1	$ 253.2	$ 252.0	$ 251.8	$ 1,224.2	$ 1,029.1	$ 631.3
Decrease in Air Products capital in excess of par value for purchase of noncontrolling interests									(6.1)	(28.3)
Changes from Net Income Attributable to Air Products and Transfers to Noncontrolling Interests									$ 1,218.1	$ 1,000.8	$ 631.3

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 87-21
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 10, 15
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 28, 29, 30
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 5
-Section 03
-Paragraph 19

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 20
-Article 9

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Net Income
-URI http://asc.fasb.org/extlink&oid=6518256

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Other Comprehensive Income
-URI http://asc.fasb.org/extlink&oid=6519514

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.18)
-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04.19)
-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e565-108580

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04.22)
-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 16: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph A7
-Appendix A

Earnings Per Share (Narrative) (Details) - shares shares in Millions	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Earnings Per Share [Abstract]
Antidilutive options excluded from computation of diluted earnings per share	2.1	2.2	5.8

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 13, 14
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 171
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 40
-Subparagraph c
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Diluted Earnings Per Share
-URI http://asc.fasb.org/extlink&oid=6510752

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Contingent Stock Agreement
-URI http://asc.fasb.org/extlink&oid=6508534

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Antidilution
-URI http://asc.fasb.org/extlink&oid=6505113

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 07-4
-Paragraph 4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Earnings Per Share (Schedule Of Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended								12 Months Ended
	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2009	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Earnings Per Share [Abstract]
Income from continuing operations	$ 324.8	$ 317.6	$ 304.3	$ 268.6					$ 1,215.3	$ 1,029.1	$ 639.9
Income (Loss) from discontinued operations		8.9							8.9		(8.6)
Net income attributable to Air Products	$ 324.8	$ 326.5	$ 304.3	$ 268.6	$ 272.1	$ 253.2	$ 252.0	$ 251.8	$ 1,224.2	$ 1,029.1	$ 631.3
Weighted average number of common shares outstanding									213.0	212.2	209.9
Employee stock options									3.7	3.9	2.6
Other award plans									0.9	1.0	1.0
Effect of dilutive securities									4.6	4.9	3.6
Weighted average number of common shares outstanding assuming dilution									217.6	217.1	213.5
Income from continuing operations, Basic	$ 1.54	$ 1.50	$ 1.42	$ 1.25					$ 5.71	$ 4.85	$ 3.05
Income (Loss) from discontinued operations, Basic		0.04							0.04		(0.04)
Net Income Attributable to Air Products	1.54	1.54	1.42	1.25	$ 1.28	$ 1.19	$ 1.19	$ 1.19	5.75	4.85	3.01
Income from continuing operations, Diluted	1.51	1.46	1.39	1.23					5.59	4.74	3.00
Income (Loss) from discontinued operations, Diluted		0.04							0.04		(0.04)
Net Income Attributable to Air Products	$ 1.51	$ 1.50	$ 1.39	$ 1.23	$ 1.25	$ 1.17	$ 1.16	$ 1.16	$ 5.63	$ 4.74	$ 2.96

Income Taxes (Narrative) (Details) $ / shares in Units, € in Millions, $ in Millions	1 Months Ended		3 Months Ended				12 Months Ended
	Nov. 30, 2011 EUR (€)	Nov. 30, 2011 USD ($)	Sep. 30, 2011 USD ($) $ / shares	Jun. 30, 2011 USD ($) $ / shares	Mar. 31, 2011 $ / shares	Dec. 31, 2010 $ / shares	Sep. 30, 2011 USD ($) $ / shares	Sep. 30, 2010 USD ($) $ / shares	Sep. 30, 2009 USD ($) $ / shares	Sep. 30, 2008 USD ($)
Operating loss expiration period							2012 and 2031
Change in valuation allowance							$ (26.8)	$ 23.5
Valuation allowance			$ 28.6				28.6
Income tax payments							162.5	192.0	$ 124.5
Undistributed earnings included in retained earnings			4,051.6				4,051.6
U.S. income and foreign withholding taxes			967.9				967.9
Unrecognized tax benefits			126.4				126.4	197.8	163.1	$ 154.7
Unrecognized tax benefit that if recognized would impact effective tax rate			$ 93.1				93.1	108.0
Interest and penalties recognized							(2.4)	5.5	2.5
Unrecognized tax benefits for payment of interest and penalties							33.3	$ 35.9
Decrease in unrecognized tax benefit				$ (36.0)			(60.0)
Favorable impact to current year earnings				23.9
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent				$ 8.9			$ 8.9		$ (8.6)
Income (Loss) from Discontinued Operations, Net of Tax, Per Diluted Share \| $ / shares				$ 0.04			$ 0.04		$ (0.04)
Income tax settlement	€ 40	$ 55.0
Foreign Country [Member]
Loss carryforward			$ 105.1				$ 105.1
State [Member]
Loss carryforward			$ 323.3				$ 323.3

Income Taxes (Components Of Provision For Income Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Income Taxes [Abstract]
Federal, Current	$ 14.7	$ 100.5	$ 88.1
Federal, Deferred	181.6	47.4	18.1
Federal provision for income taxes	196.3	147.9	106.2
State, Current	20.1	2.7	35.8
State, Deferred	2.6	4.3	(20.9)
State provision for income taxes	22.7	7.0	14.9
Foreign, Current	187.9	140.1	113.7
Foreign, Deferred	1.5	44.5	(49.5)
Foreign provision for income taxes	189.4	184.6	64.2
Provision for income taxes	$ 408.4	$ 339.5	$ 185.3

Income Taxes (Components Of Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Millions	Sep. 30, 2011	Sep. 30, 2010
Income Taxes [Abstract]
Retirement benefits and compensation accruals	$ 513.5	$ 491.0
Tax loss carryforwards	43.7	62.2
Tax credits	49.6	67.4
Reserves and accruals	95.8	75.4
Acquisition-related costs		35.9
Asset impairment	8.6	6.7
Currency losses	28.7	29.5
Other	58.9	153.2
Valuation allowance	(28.6)	(55.4)
Deferred Tax Assets	770.2	865.9
Plant and equipment	1,006.7	840.9
Investment in partnerships	7.3	5.6
Unrealized gain on cost investments		11.8
Unremitted earnings of foreign entities	37.9
Intangible assets	50.5	57.0
Other	15.5	76.5
Deferred Tax Liabilities	1,117.9	991.8
Net Deferred Income Tax Liability	$ 347.7	$ 125.9

Income Taxes (Deferred Tax Assets And Liabilities Included In Consolidated Financial) (Details) - USD ($) $ in Millions	Sep. 30, 2011	Sep. 30, 2010
Income Taxes [Abstract]
Other receivables and current assets	$ 104.0	$ 124.1
Other noncurrent assets	123.8	85.5
Total Deferred Tax Assets	227.8	209.6
Payables and accrued liabilities	5.4	0.4
Deferred income taxes	570.1	335.1
Total Deferred Tax Liabilities	575.5	335.5
Net Deferred Income Tax Liability	$ 347.7	$ 125.9

The tax effect as of the balance sheet date of the amount of the estimated future tax deductions attributable to income recognized only for tax purposes and which will reverse when recognized under generally accepted accounting principles.

The current portion of the aggregate tax effects as of the balance sheet date of all future tax deductions arising from temporary differences between tax basis and generally accepted accounting principles basis recognition of assets, liabilities, revenues and expenses, which can only be deducted for tax purposes when permitted under enacted tax laws; after deducting the allocated valuation allowance, if any, to reduce such amount to net realizable value. Deferred tax liabilities and assets are classified as current or noncurrent based on the classification of the related asset or liability for financial reporting. A deferred tax liability or asset that is not related to an asset or liability for financial reporting, including deferred tax assets related to carryforwards, are classified according to the expected reversal date of the temporary difference. An unrecognized tax benefit that is directly related to a position taken in a tax year that results in a net operating loss carryforward is presented as a reduction of the related deferred tax asset.

The noncurrent portion as of the balance sheet date of the aggregate carrying amount of all future tax deductions arising from temporary differences between tax basis and generally accepted accounting principles basis recognition of assets, liabilities, revenues and expenses, which can only be deducted for tax purposes when permitted under enacted tax laws; after the valuation allowance, if any, to reduce such amount to net realizable value. Deferred tax liabilities and assets are classified as current or noncurrent based on the classification of the related asset or liability for financial reporting. A deferred tax liability or asset that is not related to an asset or liability for financial reporting, including deferred tax assets related to carryforwards, is classified according to the expected reversal date of the temporary difference.

Represents the current portion of deferred tax liabilities, which result from applying the applicable tax rate to net taxable temporary differences pertaining to each jurisdiction to which the entity is obligated to pay income tax. A current taxable temporary difference is a difference between the tax basis and the carrying amount of a current asset or liability in the financial statements prepared in accordance with generally accepted accounting principles. In a classified statement of financial position, an enterprise separates deferred tax liabilities and assets into a current amount and a noncurrent amount. Deferred tax liabilities and assets are classified as current or noncurrent based on the classification of the related asset or liability for financial reporting. A deferred tax liability or asset that is not related to an asset or liability for financial reporting, including deferred tax assets related to carryforwards, is classified according to the expected reversal date of the temporary difference.

Represents the noncurrent portion of deferred tax liabilities, which result from applying the applicable tax rate to net taxable temporary differences pertaining to each jurisdiction to which the entity is obligated to pay income tax. A noncurrent taxable temporary difference is a difference between the tax basis and the carrying amount of a noncurrent asset or liability in the financial statements prepared in accordance with generally accepted accounting principles. In a classified statement of financial position, an enterprise separates deferred tax liabilities and assets into a current amount and a noncurrent amount. Deferred tax liabilities and assets are classified as current or noncurrent based on the classification of the related asset or liability for financial reporting. A deferred tax liability or asset that is not related to an asset or liability for financial reporting, including deferred tax assets related to carryforwards, are classified according to the expected reversal date of the temporary difference.

Income Taxes (Effective Tax Rate Reconciliation) (Details)	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Income Taxes [Abstract]
U.S. federal statutory tax rate	35.00%	35.00%	35.00%
State taxes, net of federal benefit	0.90%	0.30%	1.10%
Income from equity affiliates	(3.10%)	(3.00%)	(4.70%)
Foreign taxes and credits	(7.00%)	(8.30%)	(7.30%)
Domestic production activities	(0.50%)	(0.60%)	(1.10%)
Tax audit settlements and adjustments	(1.00%)		(0.80%)
Donation of investments		(0.40%)
Other	0.30%	1.40%	(0.10%)
Effective Tax Rate	24.60%	24.40%	22.10%

Income Taxes (Income Of U.S And Foreign Operations Before Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Income Taxes [Abstract]
Income from Continuing Operations before Taxes, United States	$ 625.5	$ 464.5	$ 374.3
Income from Continuing Operations before Taxes, Foreign	881.2	802.6	350.1
Income from Continuing Operations before Taxes, Income from equity affiliates	154.3	126.9	112.2
Income from Continuing Operations before Taxes	$ 1,661.0	$ 1,394.0	$ 836.6

Income Taxes (Reconciliation Of Unrecognized Tax Benefits) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Income Taxes [Abstract]
Balance at beginning of year	$ 197.8	$ 163.1	$ 154.7
Additions for tax positions of the current year	16.3	31.8	23.6
Additions for tax positions of prior years	5.7	12.9	36.3
Reductions for tax positions of prior years	(72.4)	(1.0)	(43.5)
Settlements	(15.6)		(4.9)
Statute of limitations expiration	(4.8)	(6.1)	(5.4)
Foreign currency translation	(0.6)	(2.9)	2.3
Balance at End of Year	$ 126.4	$ 197.8	$ 163.1

Income Taxes (Summary Of Income Tax Examinations) (Details)	12 Months Ended
	Sep. 30, 2011
United States [Member]
Open Tax Years	2009–2011
Canada [Member]
Open Tax Years	2007–2011
United Kingdom [Member]
Open Tax Years	2008–2011
Germany [Member]
Open Tax Years	2006–2011
Netherlands [Member]
Open Tax Years	2005–2011
Poland [Member]
Open Tax Years	2005–2011
Spain [Member]
Open Tax Years	2009–2011
China [Member]
Open Tax Years	2006–2011
Taiwan [Member]
Open Tax Years	2006–2011
Korea [Member]
Open Tax Years	2006–2011

Supplemental Information (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended	3 Months Ended	12 Months Ended
	Apr. 30, 2010	Jun. 30, 2009	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Write-off of certain receivables, pre-tax			$ 23.4	$ 29.5	$ 37.8
Facility closing costs		$ 9.9
Facility closing costs, after-tax		$ 7.1
Facility closing costs, per share		$ 0.03
Allowance for Certain Notes Receivable [Member]
Write-off of certain receivables, pre-tax		$ 22.2
Write-off of certain receivables, after-tax		$ 13.9
Write-off of certain receivables, per share		$ 0.07
Final settlement received	$ 22.4
Recovery of certain receivables	16.0
Income from previous written off receivables, pre-tax	6.4
Income from previous written off receivables, after-tax	$ 4.0
Income from previous written off receivables, per share	$ 0.02

Supplemental Information (Other Receivables And Current Assets) (Details) - USD ($) $ in Millions	Sep. 30, 2011	Sep. 30, 2010
Supplemental Information [Abstract]
Deferred tax assets	$ 104.0	$ 124.1
Derivative instruments	30.8	42.6
Other receivables	103.3	120.7
Current capital lease receivables	47.1	39.1
Other	1.1	45.6
Other receivables and current assets	$ 286.3	$ 372.1

Fair values as of the balance sheet date for all assets resulting from contracts that meet the criteria of being accounted for as derivative instruments and which are expected to be converted into cash or otherwise disposed of within a year or the normal operating cycle, if longer, net of the effects of master netting arrangements.

Supplemental Information (Other Noncurrent Assets) (Details) - USD ($) $ in Millions	Sep. 30, 2011	Sep. 30, 2010
Supplemental Information [Abstract]
Restricted cash	$ 77.2	$ 95.7
Derivative instruments	87.4	71.8
Other long-term receivables	43.7	61.6
Airgas investment		102.5
Deferred tax assets	123.8	85.5
Other	149.3	120.2
Other noncurrent assets	$ 481.4	$ 537.3

For entities that net deferred tax assets and tax liabilities, represents the net amount of deferred tax assets (after reduction for valuation allowance) and liabilities as of the balance sheet date, which result from applying the applicable enacted tax rate to net temporary differences and carryforwards pertaining to assets or liabilities that are classified as noncurrent in the financial statements, or that are expected to reverse after the next twelve months (or beyond the normal operating cycle, if longer). A temporary difference is a difference between the tax basis of an asset or liability and its carrying amount in the financial statements prepared in accordance with generally accepted accounting principles that will reverse in ensuing periods. In a classified statement of financial position, an enterprise separates deferred tax liabilities and assets into a current amount and a noncurrent amount. Deferred tax liabilities and assets are classified as current or noncurrent based on the classification of the related asset or liability for financial reporting. A deferred tax liability or asset that is not related to an asset or liability for financial reporting, including deferred tax assets related to carryforwards, are classified according to the expected reversal date of the temporary difference.

Fair values as of the balance sheet date of all assets resulting from contracts that meet the criteria of being accounted for as derivative instruments which are expected to exist longer than one year or beyond the normal operating cycle, if longer, net of the effects of master netting arrangements.

Supplemental Information (Payables And Accrued Liabilities) (Details) - USD ($) $ in Millions	Sep. 30, 2011	Sep. 30, 2010
Supplemental Information [Abstract]
Trade creditors	$ 800.0	$ 662.2
Customer advances	136.0	80.7
Accrued payroll and employee benefits	204.6	207.5
Pension benefits	33.8	238.8
Dividends payable	121.9	104.8
Outstanding payments in excess of certain cash balances	36.8	31.4
Accrued interest expense	51.3	52.9
Derivative instruments	40.6	31.9
Acquisition-related accrual		117.7
Liability related to purchase of shares from noncontrolling interests	51.0
Other	165.8	174.1
Total payables and accrued liabilities	$ 1,641.8	$ 1,702.0

Supplemental Information (Other Noncurrent Liabilities) - USD ($) $ in Millions	Sep. 30, 2011	Sep. 30, 2010
Supplemental Information [Abstract]
Pension benefits	$ 914.8	$ 803.2
Postretirement benefits	101.0	107.2
Other employee benefits	100.5	103.5
Contingencies related to uncertain tax positions	154.1	228.8
Advance payments	46.2	69.6
Environmental liabilities	75.1	79.9
Liability related to purchase of shares from noncontrolling interests		42.0
Derivative instruments	3.2	22.3
Other	117.5	112.8
Other noncurrent liabilities	$ 1,512.4	$ 1,569.3

Supplemental Information (Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Supplemental Information [Abstract]
Net unrealized holding gain on investments		$ 20.7	$ 10.5
Net unrecognized (loss) on derivatives qualifying as hedges	$ (9.5)	(21.9)	(25.1)
Foreign currency translation adjustments	(130.9)	(44.1)	(179.8)
Pension and postretirement benefits	(1,113.0)	(1,114.1)	(967.4)
Total accumulated other comprehensive income (loss)	$ (1,253.4)	$ (1,159.4)	$ (1,161.8)

The total of net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 26
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph i
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 158
-Paragraph 7
-Subparagraph c
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e637-108580

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14
-URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e681-108580

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e653-108580

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920

Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 12
-Paragraph 10
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 17, 18, 19, 22, 23, 24, 25, 26
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 45
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 52
-Paragraph 12, 13
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 52
-Paragraph 31
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e637-108580

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=6915805&loc=d3e32022-110900

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14
-URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e681-108580

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e653-108580

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

Supplemental Information (Other Income (Expense), Net) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Supplemental Information [Abstract]
Technology and royalty income	$ 24.3	$ 19.0	$ 19.5
Interest income	5.7	3.4	7.4
Foreign exchange	(8.6)	4.0	(3.8)
Sale of assets and investments	12.8	13.2	(3.0)
Amortization of intangibles	(5.5)	(8.4)	(10.1)
Government Grants	9.5
Other	(1.0)	7.5	13.0
Other income (expense), net	$ 37.2	$ 38.7	$ 23.0

The aggregate foreign currency transaction gain (loss) (both realized and unrealized) included in determining net income for the reporting period. Excludes foreign currency transactions designated as hedges of net investment in a foreign entity and intercompany foreign currency transactions that are of a long-term nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements. For certain enterprises, primarily banks, that are dealers in foreign exchange, foreign currency transaction gains (losses) may be disclosed as dealer gains (losses).

Summary By Quarter (Summary Of Quarterly Operating Results) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2009	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Summary By Quarter [Abstract]
Sales	$ 2,611.2	$ 2,577.8	$ 2,501.3	$ 2,391.7	$ 2,351.2	$ 2,252.3	$ 2,249.0	$ 2,173.5	$ 10,082.0	$ 9,026.0	$ 8,256.2
Gross profit	701.0	695.7	698.8	671.2	656.6	641.2	620.3	604.9	2,766.7	2,523.0
Net loss on Airgas transaction			5.0	43.5	34.7	37.9	23.4		48.5	96.0
Customer bankruptcy					(4.6)	(1.8)				(6.4)	22.2
Pension settlement					5.2	6.3				11.5	10.7
Operating income	425.3	416.8	419.5	360.6	367.0	336.4	340.6	345.0	1,622.2	1,389.0	846.3
Income from continuing operations-attributable to Air Products	324.8	317.6	304.3	268.6					1,215.3	1,029.1	639.9
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest		8.9							8.9		(8.6)
Net Income	339.1	335.0	311.5	275.9	278.0	261.3	258.4	256.8	1,261.5	1,054.5	642.7
Net Income attributable to Air Products	$ 324.8	$ 326.5	$ 304.3	$ 268.6	$ 272.1	$ 253.2	$ 252.0	$ 251.8	$ 1,224.2	$ 1,029.1	$ 631.3
Basic EPS attributable to Air Products, Income from continuing operations	$ 1.54	$ 1.50	$ 1.42	$ 1.25					$ 5.71	$ 4.85	$ 3.05
Basic EPS attributable to Air Products, Income from discontinued operations		0.04							0.04		(0.04)
Basic EPS attributable to Air Products, Net income per common share	1.54	1.54	1.42	1.25	$ 1.28	$ 1.19	$ 1.19	$ 1.19	5.75	4.85	3.01
Diluted EPS attributable to Air Products, Income from continuing operations	1.51	1.46	1.39	1.23					5.59	4.74	3.00
Income (Loss) from discontinued operations		0.04							0.04		(0.04)
Diluted EPS attributable to Air Products, Net income per common share	1.51	1.50	1.39	1.23	1.25	1.17	1.16	1.16	5.63	4.74	2.96
Dividends declared per common share	0.58	0.58	0.58	0.49	0.49	0.49	0.49	0.45	$ 2.23	$ 1.92	$ 1.79
Market price per common share, High	98.00	96.00	95.00	91.39	84.43	80.24	83.80	85.44
Market price per common share, Low	$ 74.58	$ 89.18	$ 83.22	$ 80.90	$ 64.13	$ 64.47	$ 65.05	$ 73.76

Business Segment And Geographic Information (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Business Segment And Geographic Information [Abstract]
Export sales to unconsolidated customers	$ 589.7	$ 570.5	$ 510.2

Business Segment And Geographic Information (Segment Revenue From External Customers) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Sales to External Customers	$ 10,082.0	$ 9,026.0	$ 8,256.2
Merchant Gases [Member]
Sales to External Customers	4,073.2	3,718.3	3,610.6
Tonnage Gases [Member]
Sales to External Customers	3,316.7	2,930.8	2,573.6
Electronics And Performance Materials [Member]
Sales to External Customers	2,291.5	1,904.7	1,582.2
Equipment And Energy [Member]
Sales to External Customers	$ 400.6	$ 472.2	$ 489.8

Business Segment And Geographic Information (Segment Operating Income) (Details) - USD ($)
$ in Millions

3 Months Ended

12 Months Ended

Sep. 30, 2011

Jun. 30, 2011

Mar. 31, 2011

Dec. 31, 2010

Sep. 30, 2010

Jun. 30, 2010

Mar. 31, 2010

Dec. 31, 2009

Jun. 30, 2009

Dec. 31, 2008

Sep. 30, 2011

Sep. 30, 2010

Sep. 30, 2009

$ 425.3

$ 416.8

$ 419.5

$ 360.6

$ 367.0

$ 336.4

$ 340.6

$ 345.0

$ 1,622.2

$ 1,389.0

$ 846.3

Net Loss on Airgas transaction

$ (124.0)

$ (174.2)

(298.2)

^[1]

$ (5.0)

$ (43.5)

(34.7)

$ (37.9)

$ (23.4)

(48.5)

(96.0)

Customer bankruptcy and asset actions

6.4

(32.1)

Pension settlement

$ (11.5)

(11.5)

(10.7)

(16.1)

(2.6)

(17.3)

Merchant Gases [Member]

759.8

729.4

661.2

(134.7)

Tonnage Gases [Member]

503.1

444.2

399.6

Electronics And Performance Materials [Member]

(14.2)

361.1

251.8

101.6

Equipment And Energy [Member]

(89.5)

62.8

67.3

42.2

(59.8)

Segment Total [Member]

$ 1,686.8

$ 1,492.7

$ 1,204.6

[1]	Information about how this charge related to the businesses at the segment level is discussed in Note 5, Global Cost Reduction Plan.

Business Segment And Geographic Information (Segment Reporting Depreciation And Amortization) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Depreciation and Amortization	$ 873.9	$ 863.4	$ 840.3
Merchant Gases [Member]
Depreciation and Amortization	396.6	377.9	372.3
Tonnage Gases [Member]
Depreciation and Amortization	310.9	303.0	272.2
Electronics And Performance Materials [Member]
Depreciation and Amortization	154.9	169.0	178.2
Equipment And Energy [Member]
Depreciation and Amortization	11.0	12.7	15.9
Segment Total [Member]
Depreciation and Amortization	873.4	862.6	838.6
Other Segments [Member]
Depreciation and Amortization	$ 0.5	$ 0.8	$ 1.7

Business Segment And Geographic Information (Segment Reporting Equity Affiliates' Income) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Equity Affiliates' Income	$ 154.3	$ 126.9	$ 112.2
Merchant Gases [Member]
Equity Affiliates' Income	134.6	104.3	98.3
Other Segments [Member]
Equity Affiliates' Income	$ 19.7	$ 22.6	$ 13.9

This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 28
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 18
-Paragraph 19
-Subparagraph c
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 18
-Paragraph 6
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 5
-Section 03
-Paragraph 9

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.12)
-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6382870&loc=d3e33749-111570

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 11
-Article 7

Business Segment And Geographic Information (Segment Reporting Total Assets) (Details) - USD ($) $ in Millions	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Other	$ 898.6	$ 1,024.3	$ 1,093.4
Assets	14,290.7	13,505.9	13,029.1
Merchant Gases [Member]
Assets	5,892.1	5,824.7	5,630.8
Tonnage Gases [Member]
Assets	4,581.8	3,958.1	3,672.0
Electronics And Performance Materials [Member]
Assets	2,560.7	2,336.1	2,299.1
Equipment And Energy [Member]
Assets	357.5	362.7	333.8
Segment Total [Member]
Assets	$ 13,392.1	$ 12,481.6	$ 11,935.7

Business Segment And Geographic Information (Segment Investment In And Advances To Equity Affiliates) (Details) - USD ($) $ in Millions	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Segment and Consolidated Totals	$ 1,011.6	$ 912.8	$ 868.1
Merchant Gases [Member]
Segment and Consolidated Totals	800.4	749.4	713.8
Other Segments [Member]
Segment and Consolidated Totals	$ 211.2	$ 163.4	$ 154.3

Business Segment And Geographic Information (Segment Identifiable Assets Information) (Details) - USD ($) $ in Millions	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Identifiable Assets	$ 12,380.5	$ 11,568.8	$ 11,067.6
Other	898.6	1,024.3	1,093.4
Consolidated Identifiable Assets Total	13,279.1	12,593.1	12,161.0
Merchant Gases [Member]
Identifiable Assets	5,091.7	5,075.3	4,917.0
Tonnage Gases [Member]
Identifiable Assets	4,464.3	3,876.4	3,597.8
Electronics And Performance Materials [Member]
Identifiable Assets	2,488.9	2,275.8	2,249.5
Equipment And Energy [Member]
Identifiable Assets	$ 335.6	$ 341.3	$ 303.3

Business Segment And Geographic Information (Segment Expenditures For Long-Lived Assets) (Details) - USD ($)
$ in Millions

12 Months Ended

Sep. 30, 2011

Sep. 30, 2010

Sep. 30, 2009

^[1]

$ 1,344.7

$ 1,030.1

$ 1,178.1

Consolidated Expenditures for Long-Lived Assets Total

^[1]

7.0

0.8

1.0

^[1]

1,351.7

1,030.9

1,179.1

Merchant Gases [Member]

^[1]

432.9

311.5

510.8

Tonnage Gases [Member]

Electronics And Performance Materials [Member]

^[1]

669.9

557.2

532.1

Equipment And Energy [Member]

^[1]

196.0

139.0

125.4

^[1]

$ 45.9

$ 22.4

$ 9.8

[1]	Includes plant and equipment

Business Segment And Geographic Information (Geographic Information - Revenue From External Customers) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Sales to External Customers	$ 10,082.0	$ 9,026.0	$ 8,256.2
United States [Member]
Sales to External Customers	4,423.8	4,110.2	3,779.8
Canada [Member]
Sales to External Customers	297.0	260.3	238.6
Europe [Member]
Sales to External Customers	3,002.1	2,819.7	2,765.1
Asia [Member]
Sales to External Customers	2,122.1	1,621.0	1,294.2
Latin America / Other [Member]
Sales to External Customers	$ 237.0	$ 214.8	$ 178.5

Business Segment And Geographic Information (Geographic Information - Long-Lived Assets) (Details) - USD ($)
$ in Millions

Sep. 30, 2011

Sep. 30, 2010

Sep. 30, 2009

^[1]

$ 7,412.0

$ 7,051.3

$ 6,859.6

United States [Member]

^[1]

3,099.2

2,968.0

2,987.1

Canada [Member]

^[1]

566.1

608.8

535.2

Europe [Member]

^[1]

1,833.7

1,711.1

1,766.8

Asia [Member]

Latin America / Other [Member]

^[1]

1,786.2

1,658.4

1,462.3

Allowance For Doubtful Accounts [Member]

^[1]

$ 126.8

$ 105.0

$ 108.2

[1]	Long lived assets include plant and equipment, net.

Schedule II - Valuation And Qualifying Accounts (Schedule Of Valuation And Qualifying Accounts) (Details) - USD ($)
$ in Millions

12 Months Ended

Sep. 30, 2011

Sep. 30, 2010

Sep. 30, 2009

Balance at Beginning of Period

$ 99

$ 65

$ 36

Charged to Expense

Charged to Other Accounts

Cumulative Translation Adjustment

(1)

Allowance Of Deferred Tax Assets [Member]

^[1]

(23)

(10)

Balance at End of Period

Balance at Beginning of Period

Charged to Expense

(27)

(30)

Charged to Other Accounts

(2)

Cumulative Translation Adjustment

(1)