0000002969-22-000010 | 10-Q | XBRL Viewer | AIR Products Chemicals INC DE

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Cover	3 Months Ended
Cover	Dec. 31, 2021 shares
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Dec. 31, 2021
Document Transition Report	false
Entity File Number	001-04534
Entity Registrant Name	AIR PRODUCTS AND CHEMICALS, INC.
Entity Central Index Key	0000002969
Current Fiscal Year End Date	--09-30
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	23-1274455
Entity Address, Address Line One	1940 Air Products Boulevard
Entity Address, City or Town	Allentown
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	18106-5500
City Area Code	610
Local Phone Number	481-4911
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding	221,717,387
Common Stock, par value $1.00 per share
Entity Information [Line Items]
Title of 12(b) Security	Common Stock, par value $1.00 per share
Trading Symbol	APD
Security Exchange Name	NYSE
1.000% Euro Notes due 2025
Entity Information [Line Items]
Title of 12(b) Security	1.000% Euro Notes due 2025
Trading Symbol	APD25
Security Exchange Name	NYSE
0.500% Euro Notes due 2028
Entity Information [Line Items]
Title of 12(b) Security	0.500% Euro Notes due 2028
Trading Symbol	APD28
Security Exchange Name	NYSE
0.800% Euro Notes due 2032
Entity Information [Line Items]
Title of 12(b) Security	0.800% Euro Notes due 2032
Trading Symbol	APD32
Security Exchange Name	NYSE

Consolidated Income Statements (Unaudited) - USD ($)
shares in Millions, $ in Millions

3 Months Ended

Dec. 31, 2021

Dec. 31, 2020

Income Statement [Abstract]

Sales

$ 2,994.2

$ 2,375.2

Cost of sales

2,223.6

1,632.4

Selling and administrative

232.8

202.7

Research and development

23.3

23.5

Other income (expense), net

8.5

22.5

Operating Income

523.0

539.1

Equity affiliates' income

147.8

69.3

Interest expense

30.5

36.7

Other non-operating income (expense), net

22.6

18.6

Income From Continuing Operations Before Taxes

662.9

590.3

Income tax provision

113.3

113.9

Income From Continuing Operations

549.6

476.4

Income from discontinued operations, net of tax

0.0

10.3

Net Income

549.6

486.7

Net (loss) income attributable to noncontrolling interests of continuing operations

(10.8)

4.7

Net Income Attributable to Air Products

560.4

482.0

Net Income Attributable to Air Products

Net income from continuing operations

560.4

471.7

Net income from discontinued operations

0.0

10.3

Net Income Attributable to Air Products

$ 560.4

$ 482.0

Per Share Data

Basic EPS from continuing operations (in dollars per share)

^[1]

$ 2.53

$ 2.13

Basic EPS from discontinued operations (in dollars per share)

^[1]

0.05

Basic EPS Attributable to Air Products (in dollars per share)

^[1]

2.53

2.18

Diluted EPS from continuing operations (in dollars per share)

^[1]

2.52

2.12

Diluted EPS from discontinued operations (in dollars per share)

^[1]

0.05

Diluted EPS Attributable to Air Products (in dollars per share)

^[1]

$ 2.52

$ 2.17

Weighted Average Common Shares (in millions)

Basic

221.9

221.5

Diluted

222.6

[1]	*Earnings per share ("EPS") is calculated independently for each component and may not sum to total EPS due to rounding.

Consolidated Comprehensive Income Statements (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net Income	$ 549.6	$ 486.7
Other Comprehensive Income (Loss), net of tax
Translation adjustments, net of tax	40.6	415.7
Net gain (loss) on derivatives, net of tax	(0.5)	13.8
Reclassification adjustments:
Derivatives, net of tax	18.7	(1.3)
Pension and postretirement benefits, net of tax	16.0	18.3
Total Other Comprehensive Income	74.8	446.5
Comprehensive Income	624.4	933.2
Net (Loss) Income Attributable to Noncontrolling Interests	(10.8)	4.7
Other Comprehensive Income Attributable to Noncontrolling Interests	11.2	19.7
Comprehensive Income Attributable to Air Products	$ 624.0	$ 908.8

Consolidated Comprehensive Income Statements (Unaudited) (Parenthetical) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Tax effect on translation adjustments	$ 7.6	$ (24.2)
Tax effect on net gain (loss) on derivatives	(11.1)	2.7
Tax effect on derivatives reclassification adjustments	6.1	(0.8)
Tax effect on pension and postretirement benefits reclassification adjustments	$ 5.4	$ 5.9

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Dec. 31, 2021	Sep. 30, 2021
Current Assets
Cash and cash items	$ 2,953.7	$ 4,468.9
Short-term investments	728.6	1,331.9
Trade receivables, net	1,693.8	1,451.3
Inventories	487.2	453.9
Prepaid expenses	135.3	119.4
Other receivables and current assets	484.9	550.9
Total Current Assets	6,483.5	8,376.3
Investment in net assets of and advances to equity affiliates	3,329.2	1,649.3
Plant and equipment, at cost	28,101.0	27,488.8
Less: accumulated depreciation	14,476.3	14,234.2
Plant and equipment, net	13,624.7	13,254.6
Goodwill, net	923.3	911.5
Intangible assets, net	418.8	420.7
Noncurrent lease receivables	724.3	740.3
Other noncurrent assets	1,621.5	1,506.5
Total Noncurrent Assets	20,641.8	18,482.9
Total Assets	27,125.3	26,859.2
Current Liabilities
Payables and accrued liabilities	2,310.6	2,218.3
Accrued income taxes	119.8	93.9
Short-term borrowings	112.9	2.4
Current portion of long-term debt	86.8	484.5
Total Current Liabilities	2,630.1	2,799.1
Long-term debt	6,893.1	6,875.7
Long-term debt – related party	285.2	274.6
Other noncurrent liabilities	1,731.7	1,640.9
Deferred income taxes	1,209.6	1,180.9
Total Noncurrent Liabilities	10,119.6	9,972.1
Total Liabilities	12,749.7	12,771.2
Commitments and Contingencies - See Note 11
Air Products Shareholders’ Equity
Common stock (par value $1 per share; issued 2022 and 2021 - 249,455,584 shares)	249.4	249.4
Capital in excess of par value	1,112.0	1,115.8
Retained earnings	15,905.2	15,678.3
Accumulated other comprehensive loss	(1,452.3)	(1,515.9)
Treasury stock, at cost (2022 - 27,738,197 shares; 2021 - 28,058,829 shares)	(1,989.2)	(1,987.9)
Total Air Products Shareholders’ Equity	13,825.1	13,539.7
Noncontrolling Interests	550.5	548.3
Total Equity	14,375.6	14,088.0
Total Liabilities and Equity	$ 27,125.3	$ 26,859.2

Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Dec. 31, 2021	Sep. 30, 2021
Air Products Shareholders’ Equity
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, issued shares	249,455,584	249,455,584
Treasury stock at cost, shares	27,738,197	28,058,829

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Operating Activities
Net Income	$ 549.6	$ 486.7
Less: Net (loss) income attributable to noncontrolling interests of continuing operations	(10.8)	4.7
Net income attributable to Air Products	560.4	482.0
Income from discontinued operations	0.0	(10.3)
Income from continuing operations attributable to Air Products	560.4	471.7
Adjustments to reconcile income to cash provided by operating activities:
Depreciation and amortization	332.3	323.7
Deferred income taxes	15.7	47.6
Undistributed earnings of equity method investments	(117.3)	(10.8)
Gain on sale of assets and investments	(0.8)	(1.1)
Share-based compensation	15.8	9.8
Noncurrent lease receivables	21.8	21.9
Other adjustments	(49.4)	19.3
Working capital changes that provided (used) cash, excluding effects of acquisitions:
Trade receivables	(132.7)	(44.1)
Inventories	(33.7)	(9.9)
Other receivables	14.0	(30.1)
Payables and accrued liabilities	167.6	24.2
Other working capital	(8.5)	(47.5)
Cash Provided by Operating Activities	785.2	774.7
Investing Activities
Additions to plant and equipment, including long-term deposits	(663.8)	(664.2)
Acquisitions, less cash acquired	(34.6)	0.0
Investment in and advances to unconsolidated affiliates	(1,632.7)	(20.0)
Proceeds from sale of assets and investments	1.1	2.6
Purchases of investments	(727.4)	(158.5)
Proceeds from investments	1,331.9	855.0
Other investing activities	6.4	3.3
Cash (Used for) Provided by Investing Activities	(1,719.1)	18.2
Financing Activities
Long-term debt proceeds	51.6	0.0
Payments on long-term debt	(400.0)	(1.1)
Net increase in commercial paper and short-term borrowings	113.1	4.5
Dividends paid to shareholders	(332.1)	(296.2)
Proceeds from stock option exercises	13.3	1.6
Other financing activities	(31.0)	(15.9)
Cash Used for Financing Activities	(585.1)	(307.1)
Effect of Exchange Rate Changes on Cash	3.8	49.2
(Decrease) Increase in cash and cash items	(1,515.2)	535.0
Cash and Cash items – Beginning of year	4,468.9	5,253.0
Cash and Cash Items – End of Period	$ 2,953.7	$ 5,788.0

Consolidated Statements of Equity (Unaudited) - USD ($) $ in Millions	Total	Common Stock	Capital in Excess of Par Value	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Air Products Shareholders' Equity	Non-controlling Interests
Beginning balance at Sep. 30, 2020	$ 12,443.1	$ 249.4	$ 1,094.8	$ 14,875.7	$ (2,140.1)	$ (2,000.0)	$ 12,079.8	$ 363.3
Stockholders' Equity [Roll Forward]
Net income	486.7			482.0			482.0	4.7
Other comprehensive income (loss)	446.5				426.8		426.8	19.7
Dividends on common stock	(296.5)			(296.5)			(296.5)
Share-based compensation	10.3		10.3				10.3
Issuance of treasury shares for stock option and award plans	(17.0)		(21.0)			4.0	(17.0)
Investments by noncontrolling interests	0.6							0.6
Other equity transactions	(1.8)		(1.1)	(0.7)			(1.8)	0.0
Ending balance at Dec. 31, 2020	13,071.9	249.4	1,083.0	15,060.5	(1,713.3)	(1,996.0)	12,683.6	388.3
Beginning balance at Sep. 30, 2021	14,088.0	249.4	1,115.8	15,678.3	(1,515.9)	(1,987.9)	13,539.7	548.3
Stockholders' Equity [Roll Forward]
Net income	549.6			560.4			560.4	(10.8)
Other comprehensive income (loss)	74.8				63.6		63.6	11.2
Dividends on common stock	(332.6)			(332.6)			(332.6)
Share-based compensation	14.1		14.1				14.1
Issuance of treasury shares for stock option and award plans	(19.4)		(18.1)			(1.3)	(19.4)
Investments by noncontrolling interests	3.6							3.6
Purchase of noncontrolling interests	(1.9)		0.0				0.0	(1.9)
Other equity transactions	(0.6)		0.2	(0.9)			(0.7)	0.1
Ending balance at Dec. 31, 2021	$ 14,375.6	$ 249.4	$ 1,112.0	$ 15,905.2	$ (1,452.3)	$ (1,989.2)	$ 13,825.1	$ 550.5

Consolidated Statements of Equity (Unaudited) (Parenthetical) - $ / shares	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Statement of Stockholders' Equity [Abstract]
Dividends per share (in dollars per share)	$ 1.50	$ 1.34

Basis of Presentation and Major Accounting Policies	3 Months Ended
Basis of Presentation and Major Accounting Policies	Dec. 31, 2021
Accounting Policies [Abstract]
Basis of Presentation and Major Accounting Policies	BASIS OF PRESENTATION AND MAJOR ACCOUNTING POLICIES Basis of Presentation The interim consolidated financial statements of Air Products and Chemicals, Inc. and its subsidiaries (“we,” “our,” “us,” the “Company,” “Air Products,” or “registrant”) included herein have been prepared by us, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (the "SEC"). Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles ("GAAP") have been condensed or omitted pursuant to such rules and regulations. In our opinion, the accompanying statements reflect adjustments necessary to present fairly the financial position, results of operations, and cash flows for those periods indicated and contain adequate disclosures to make the information presented not misleading. Adjustments included herein are of a normal, recurring nature unless otherwise disclosed in the notes to the interim consolidated financial statements. These notes, unless otherwise indicated, are presented on a continuing operations basis. To fully understand the basis of presentation, the interim consolidated financial statements and related notes included herein should be read in conjunction with the consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the fiscal year ended 30 September 2021 (the "2021 Form 10-K"). Results of operations for interim periods are not necessarily indicative of the results of operations for a full year. COVID-19 Risks and Uncertainties There continue to be many unknowns regarding COVID-19, which was declared a global pandemic by the World Health Organization in March 2020, including the ongoing spread and severity of the virus and the pace of vaccine rollouts globally. Given the dynamic nature of these circumstances, uncertainty remains related to how the pandemic may affect our business, results of operations, and overall financial performance. Major Accounting Policies Refer to our 2021 Form 10-K for a description of major accounting policies. There have been no significant changes to these accounting policies during the first three months of fiscal year 2022. Segment Reorganization We reorganized our reporting segments effective 1 October 2021. Prior year segment information presented has been updated to conform with the fiscal year 2022 presentation. Refer to Note 17, Business Segment Information, for additional information.

New Accounting Guidance	3 Months Ended
New Accounting Guidance	Dec. 31, 2021
Accounting Standards Update and Change in Accounting Principle [Abstract]
New Accounting Guidance	NEW ACCOUNTING GUIDANCE New Accounting Guidance to be Implemented Government Assistance In November 2021, the Financial Accounting Standards Board ("FASB") issued disclosure guidance to increase the transparency of transactions an entity has with a government that are accounted for by applying a grant or contribution accounting model. This guidance is effective beginning in fiscal year 2023, with early adoption permitted. We are evaluating the impact this guidance will have on our consolidated financial statements. Acquired Revenue Contracts in a Business Combination In October 2021, the FASB issued an update for the recognition of contract assets and liabilities acquired in a business combination. Rather than recognizing such items at fair value on the acquisition date, the acquirer would measure and recognize contract assets and liabilities in accordance with ASC 606, Revenue from Contracts with Customers, as if it had originated the contract. This guidance is effective beginning in fiscal year 2024, with early adoption permitted. We are evaluating the impact this guidance will have on our consolidated financial statements. Reference Rate Reform In March 2020, the FASB issued an update to provide practical expedients and exceptions for applying GAAP to contracts, hedging relationships and other transactions affected by reference rate reform if certain criteria are met. This update is primarily applicable to our contracts and hedging relationships that reference the London Inter-Bank Offered Rate ("LIBOR"). The amendments may be applied to impacted contracts and hedges prospectively through 31 December 2022. To date, we have had no impacts on our hedging relationships related to reference rate reform. We will continue to evaluate the impact this guidance could have on our consolidated financial statements.

- Definition

The entire disclosure for change in accounting principle. Includes, but is not limited to, nature, reason, and method of adopting amendment to accounting standards or other change in accounting principle.

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Reference 31: http://www.xbrl.org/2003/role/disclosureRef
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Reference 33: http://www.xbrl.org/2003/role/disclosureRef
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Reference 34: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
-Subparagraph (c)

+ Details

Revenue Recognition

3 Months Ended

Dec. 31, 2021

Revenue from Contract with Customer [Abstract]

Revenue Recognition

REVENUE RECOGNITION

The majority of our revenue is generated from our sale of gas customers within the regional industrial gases segments. We distribute gases through either our on-site or merchant supply mode depending on various factors, including the customer's volume requirements and location. The Corporate and other segment serves our sale of equipment customers.

Disaggregation of Revenue

The tables below present our consolidated sales disaggregated by supply mode for each of our reporting segments for the three months ended 31 December 2021 and 2020. We believe this presentation best depicts the nature, timing, type of customer, and contract terms for our sales.


	Americas	Asia	Europe	Middle East and India	Corporate and other	Total	%
Three Months Ended 31 December 2021
On-site	$797.6	$451.6	$325.6	$16.3	$—	$1,591.1	53	%
Merchant	426.5	328.8	418.6	7.4	—	1,181.3	40	%
Sale of Equipment	—	—	—	—	221.8	221.8	7	%
Total	$1,224.1	$780.4	$744.2	$23.7	$221.8	$2,994.2	100	%

Three Months Ended 31 December 2020
On-site	$541.3	$414.9	$176.5	$12.2	$—	$1,144.9	48	%
Merchant	391.7	302.6	367.0	7.3	—	1,068.6	45	%
Sale of Equipment	—	—	—	—	161.7	161.7	7	%
Total	$933.0	$717.5	$543.5	$19.5	$161.7	$2,375.2	100	%

Remaining Performance Obligations

As of 31 December 2021, the transaction price allocated to remaining performance obligations is estimated to be approximately $24 billion. This amount includes fixed-charge contract provisions associated with our on-site and sale of equipment supply modes. We estimate that approximately half of this revenue will be recognized over approximately the next five years and the balance thereafter.

Expected revenue associated with new on-site plants that are not yet on stream is excluded from this amount. In addition, this amount excludes consideration associated with contracts having an expected duration of less than one year and variable consideration for which we recognize revenue at the amount to which we have the right to invoice, including pass-through costs related to energy and natural gas.

In the future, actual amounts will differ due to events outside of our control, including, but not limited to, inflationary price escalations; currency exchange rates; and amended, terminated, or renewed contracts.

Contract Balances

The table below details balances arising from contracts with customers:


		31 December	30 September
	Balance Sheet Location	2021	2021
Assets
Contract assets – current	Other receivables and current assets	$34.1	$119.4
Contract fulfillment costs – current	Other receivables and current assets	150.3	125.5
Liabilities
Contract liabilities – current	Payables and accrued liabilities	519.4	366.8
Contract liabilities – noncurrent	Other noncurrent liabilities	59.2	58.4

Changes to our contract balances primarily relate to our sale of equipment contracts. During the three months ended 31 December 2021, we recognized approximately $90 in revenue associated with sale of equipment contracts that was included within our contract liabilities as of 30 September 2021.

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-URI http://asc.fasb.org/topic&trid=49130388

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
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-Section 50
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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-Topic 606
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
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+ Details

Discontinued Operations	3 Months Ended
Discontinued Operations	Dec. 31, 2021
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	DISCONTINUED OPERATIONS In the first quarter of fiscal year 2021, we recorded a tax benefit of $10.3 primarily from the settlement of a state tax appeal related to the gain on the sale of our former Performance Materials Division in fiscal year 2017. The benefit is reflected within "Income from discontinued operations, net of tax" on our consolidated income statement for the three months ended 31 December 2020. The settlement did not have an impact on our statement of cash flows for the first three months of fiscal year 2021.

Inventories

3 Months Ended

Dec. 31, 2021

Inventory Disclosure [Abstract]

Inventories

INVENTORIES

The components of inventories are as follows:


	31 December	30 September
	2021	2021
Finished goods	$158.5	$150.7
Work in process	25.7	24.0
Raw materials, supplies and other	303.0	279.2
Inventories	$487.2	$453.9

Equity Affiliates	3 Months Ended
Equity Affiliates	Dec. 31, 2021
Equity Method Investments and Joint Ventures [Abstract]
Equity Affiliates	EQUITY AFFILIATES Equity Affiliate Investment in Jazan Integrated Gasification and Power Company (“JIGPC”) On 27 October 2021, we made an initial investment of $1.6 billion in Jazan Integrated Gasification and Power Company ("JIGPC"). JIGPC is a joint venture with Saudi Aramco Power Company (a subsidiary of Aramco), ACWA Power, and Air Products Qudra in the Jazan Economic City, Saudi Arabia. Our investment, which was made primarily in the form of shareholder loans, represents a 55% interest in the joint venture, of which 4% is attributable to the non-controlling partner of Air Products Qudra. Our $1.6 billion investment includes approximately $130 from the non-controlling partner. We expect to make an additional investment in JIGPC of approximately $1 billion in 2023. We determined JIGPC is a variable interest entity for which we are not the primary beneficiary as we do not have the power to direct the activities that are most significant to the economic performance of the joint venture. Instead, these activities, including plant dispatch, operating and maintenance decisions, budgeting, capital expenditures, and financing, require unanimous approval of the owners or are controlled by the customer. Therefore, our investment in JIGPC has been accounted for under the equity method within the Middle East and India segment. Pursuant to the joint venture agreement, cash distributions will include preferred distributions to some shareholders. We record our share of income considering current distributions and projections of cash available to Air Products over the life of the venture. As of 31 December 2021, the carrying value of our investment totaled $1,696.1 and is presented as “Investments in and advances to equity affiliates” on our consolidated balance sheet. Our loss exposure is limited to our investment in the joint venture. JIGPC Joint Venture On 27 September 2021, JIGPC signed definitive agreements for the acquisition of project assets from Aramco for $12 billion and entered into related project financing for the purchase. JIGPC will complete the acquisition of the project assets, which include power blocks, gasifiers, air separation units, syngas cleanup assets, and utilities, in two phases. The first phase was completed on 27 October 2021 for $7 billion. The second phase is expected to be completed in 2023. JIGPC will commission, operate, and maintain the project assets to supply electricity, steam, hydrogen and utilities to Aramco’s refinery and terminal complex under a 25-year agreement, which commenced in the first quarter of fiscal year 2022. JIGPC accounted for the asset transfer as a financing. Accordingly, the joint venture recorded a financing receivable upon acquisition and will recognize financing income over the supply term. Jazan Gas Project Company Jazan Gas Project Company (“JGPC”), a joint venture between Air Products and ACWA Holding, entered into a 20-year oxygen and nitrogen supply agreement in 2015 to supply Aramco’s oil refinery and power plant in Jazan, Saudi Arabia. We own 26% of the joint venture. In October 2021, the supply agreement between JGPC and Aramco was terminated, and JGPC sold its air separation units to Aramco. We initially sold these assets to JGPC and deferred revenue and profit equal to our ownership percentage in the joint venture. With the termination of the supply agreement and sale of the air separation units complete, we recognized the remaining deferred profit, net of other project finalization costs, in equity affiliates’ income in the first quarter of fiscal year 2022. As of 30 September 2021, our consolidated balance sheets included $94.4 reflected within "Payables and accrued liabilities" for our obligation to make equity contributions based on our proportionate share of advances received by the joint venture under an equity bridge loan. The joint venture utilized a portion of the proceeds from the sale of the air separation units to repay its outstanding debt, including the equity bridge loan. Accordingly, we recorded a noncash adjustment of $94.4 in the first quarter of fiscal year 2022 to reduce our obligation to zero with a corresponding reduction to the carrying value of our investment in the joint venture.

Goodwill

3 Months Ended

Dec. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill

GOODWILL

Changes to the carrying amount of consolidated goodwill by segment for the three months ended 31 December 2021 are as follows:


	Americas	Asia	Europe	Middle East and India	Corporate and other	Total
Goodwill, net at 30 September 2021	$151.0	$184.3	$533.5	$8.0	$34.7	$911.5

Acquisitions(A)	—	—	17.0	—	—	17.0
Currency translation and other	(2.3)	0.8	(3.7)	—	—	(5.2)
Goodwill, net at 31 December 2021	$148.7	$185.1	$546.8	$8.0	$34.7	$923.3

(A)We recognized goodwill in the first quarter of fiscal year 2022 for expected cost synergies associated with a small business combination in Europe. The goodwill, which we do not expect to be deductible for tax purposes, is based on a preliminary purchase price allocation as of 31 December 2021.


	31 December	30 September
	2021	2021
Goodwill, gross	$1,234.6	$1,239.2
Accumulated impairment losses(A)	(311.3)	(327.7)
Goodwill, net	$923.3	$911.5

(A)Accumulated impairment losses include the impacts of currency translation. These losses are attributable to our Latin America reporting unit ("LASA") within the Americas segment.

We review goodwill for impairment annually in the fourth quarter of the fiscal year and whenever events or changes in circumstances indicate that the carrying value of goodwill might not be recoverable.

Financial Instruments

3 Months Ended

Dec. 31, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Financial Instruments

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 seek to minimize our cash flow volatility from 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 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. We also enter into forward exchange contracts to hedge the cash flow exposure on intercompany loans and third-party debt. This portfolio of forward exchange contracts consists primarily of Euros and U.S. Dollars. The maximum remaining term of any forward exchange contract currently outstanding and designated as a cash flow hedge at 31 December 2021 is 3.7 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 exchange contracts is Euros and U.S. Dollars.

We also 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 exchange 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 consists of many different foreign currency pairs, with a profile that changes from time to time depending on our business activity and sourcing decisions.

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


	31 December 2021		30 September 2021
	US$ Notional	Years Average Maturity	US$ Notional	Years Average Maturity
Forward Exchange Contracts:
Cash flow hedges	$3,601.8	0.5	$3,465.2	0.6
Net investment hedges	619.4	2.8	638.0	3.0
Not designated	319.7	0.1	692.6	0.1
Total Forward Exchange Contracts	$4,540.9	0.8	$4,795.8	0.8

We also use foreign currency-denominated debt to hedge the foreign currency exposures of our net investment in certain foreign subsidiaries. The designated foreign currency-denominated debt and related accrued interest was €1,306.9 million ($1,485.9) at 31 December 2021 and €1,297.5 million ($1,502.6) at 30 September 2021. The designated foreign currency-denominated debt is presented within "Long-term debt" on the consolidated balance sheets.

Debt Portfolio Management

It is our policy to identify, on a continuing basis, the need for debt capital and to evaluate the financial risks inherent in funding the Company with debt capital. Reflecting the result of this ongoing review, our debt portfolio and hedging program are managed with the 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 Management Contracts

We enter into interest rate swaps 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 manage interest rate risks and costs inherent in our debt portfolio. Our interest rate management portfolio generally consists of fixed-to-floating interest rate swaps (which are designated as fair value hedges), pre-issuance interest rate swaps and treasury locks (which hedge the interest rate risk associated with anticipated fixed-rate debt issuances and are designated as cash flow hedges), and floating-to-fixed interest rate swaps (which are designated as cash flow hedges). As of 31 December 2021, the outstanding interest rate swaps were denominated in U.S. Dollars. The notional amount of the interest rate swap agreements is equal to or less than the designated debt being hedged. When interest rate swaps are used to hedge variable-rate debt, the indices of the swaps and the debt to which they are designated are the same. It is our policy not to enter into any interest rate management 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 our risk management function 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. The contracts are used to hedge either certain net investments in foreign operations or non-functional currency cash flows related to intercompany loans. The current cross currency interest rate swap portfolio consists of fixed-to-fixed swaps primarily between U.S. Dollars and Chinese Renminbi, U.S. Dollars and Indian Rupee, and U.S. Dollars and Chilean Pesos.

The table below summarizes our outstanding interest rate management contracts and cross currency interest rate swaps:


	31 December 2021						30 September 2021
	US$ Notional	Average Pay %		Average Receive %		Years Average Maturity	US$ Notional	Average Pay %		Average Receive %		Years Average Maturity
Interest rate swaps (fair value hedge)	$400.0	LIBOR		1.23	%	4.6	$200.0	LIBOR		2.76	%	0.1
Cross currency interest rate swaps (net investment hedge)	$214.4	4.34	%	3.15	%	2.0	$210.2	4.32	%	3.14	%	2.2
Cross currency interest rate swaps (cash flow hedge)	$1,032.8	4.97	%	2.93	%	2.5	$1,005.7	4.98	%	2.93	%	2.7
Cross currency interest rate swaps (not designated)	$—	—	%	—	%	0.0	$4.2	5.39	%	3.54	%	2.2

The table below provides the amounts recorded on the consolidated balance sheet related to cumulative basis adjustments for fair value hedges:


	Carrying amounts of hedged item		Cumulative hedging adjustment, included in carrying amount
	31 December	30 September	31 December	30 September
Balance Sheet Location	2021	2021	2021	2021
Current portion of long-term debt	$—	$400.5	$—	$0.5
Long-term debt	1,192.9	—	(2.0)	—

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


	Balance Sheet	31 December	30 September	Balance Sheet	31 December	30 September
	Location	2021	2021	Location	2021	2021
Derivatives Designated as Hedging Instruments:
Forward exchange contracts	Other receivables and current assets	$40.4	$35.1	Payables and accrued liabilities	$52.0	$57.2
Interest rate management contracts	Other receivables and current assets	16.5	16.0	Payables and accrued liabilities	8.6	5.2
Forward exchange contracts	Other noncurrent assets	4.7	5.5	Other noncurrent liabilities	18.2	25.2
Interest rate management contracts	Other noncurrent assets	21.2	18.1	Other noncurrent liabilities	47.4	27.5
Total Derivatives Designated as Hedging Instruments		$82.8	$74.7		$126.2	$115.1
Derivatives Not Designated as Hedging Instruments:
Forward exchange contracts	Other receivables and current assets	2.3	8.7	Payables and accrued liabilities	1.6	6.4



Total Derivatives Not Designated as Hedging Instruments		$2.3	$8.7		$1.6	$6.4
Total Derivatives		$85.1	$83.4		$127.8	$121.5

Refer to Note 9, Fair Value Measurements, which defines fair value, describes the method for measuring fair value, and provides additional disclosures regarding fair value measurements.

The tables below summarize gains (losses) recognized in other comprehensive income during the period related to our net investment and cash flow hedging relationships:


	Three Months Ended
	31 December
	2021	2020
Net Investment Hedging Relationships
Forward exchange contracts	$14.5	($35.9)
Foreign currency debt	27.6	(64.2)
Cross currency interest rate swaps	(2.3)	(14.2)
Total Amount Recognized in OCI	39.8	(114.3)
Tax effects	(9.8)	28.6
Net Amount Recognized in OCI	$30.0	($85.7)


	Three Months Ended
	31 December
	2021	2020
Derivatives in Cash Flow Hedging Relationships
Forward exchange contracts	($23.4)	$64.7
Forward exchange contracts, excluded components	(2.7)	(2.7)
Other(A)	14.5	(45.5)
Total Amount Recognized in OCI	(11.6)	16.5
Tax effects	11.1	(2.7)
Net Amount Recognized in OCI	($0.5)	$13.8

(A)Other primarily includes interest rate and cross currency interest rate swaps for which excluded components are recognized in “Payables and accrued liabilities” and “Other receivables and current assets” as a component of accrued interest payable and accrued interest receivable, respectively. These excluded components are recorded in “Other non-operating income (expense), net” over the life of the cross currency interest rate swap. Other also includes the recognition of our share of gains and losses, net of tax, related to interest rate swaps held by our equity affiliates.

The tables below summarize the location and amounts recognized in income related to our cash flow and fair value hedging relationships by contract type:


	Three Months Ended 31 December
	Sales		Cost of Sales		Interest Expense			Other Non-Operating Income (Expense), Net
	2021	2020	2021	2020		2021	2020		2021	2020
Total presented in consolidated income statements that includes effects of hedging below	$2,994.2	$2,375.2	$2,223.6	$1,632.4		$30.5	$36.7		$22.6	$18.6

(Gain) Loss Effects of Cash Flow Hedging:

Forward Exchange Contracts:
Amount reclassified from OCI into income	$0.4	$0.1	($0.1)	($0.1)		$—	$—		$14.5	($51.6)

Amount excluded from effectiveness testing recognized in earnings based on amortization approach	—	—	—	—		—	—		1.3	2.8
Other:
Amount reclassified from OCI into income	—	—	—	—		1.4	1.4		7.3	45.3

Total (Gain) Loss Reclassified from OCI to Income	0.4	0.1	(0.1)	(0.1)		1.4	1.4		23.1	(3.5)
Tax effects	(0.1)	—	—	0.2		(0.5)	(0.5)		(5.5)	1.1
Net (Gain) Loss Reclassified from OCI to Income	$0.3	$0.1	($0.1)	$0.1		$0.9	$0.9		$17.6	($2.4)

(Gain) Loss Effects of Fair Value Hedging:

Other:
Hedged items	$—	$—	$—	$—		($2.5)	($1.3)		$—	$—
Derivatives designated as hedging instruments	—	—	—	—		2.5	1.3		—	—
Total (Gain) Loss Recognized in Income	$—	$—	$—	$—		$—	$—		$—	$—

The tables below summarize the location and amounts recognized in income related to our derivatives not designated as hedging instruments by contract type:


	Three Months Ended 31 December
	Other Income (Expense), Net		Other Non-Operating Income (Expense), Net
	2021	2020	2021	2020
The Effects of Derivatives Not Designated as Hedging Instruments:
Forward Exchange Contracts	$1.1	$2.8	($0.6)	($1.3)
Other	—	—	0.1	0.5
Total (Gain) Loss Recognized in Income	$1.1	$2.8	($0.5)	($0.8)

The amount of unrealized gains and losses related to cash flow hedges as of 31 December 2021 that are expected to be reclassified to earnings in the next twelve months is 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 $71.5 and $53.4 as of 31 December 2021 and 30 September 2021, respectively. 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 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. The collateral that the counterparties would be required to post was $48.0 and $38.1 as of 31 December 2021 and 30 September 2021, respectively. No financial institution is required to post collateral at this time as all have credit ratings at or above threshold.

Fair Value Measurements

3 Months Ended

Dec. 31, 2021

Fair Value Disclosures [Abstract]

Fair Value Measurements

FAIR VALUE MEASUREMENTS

Fair value is defined as an exit price, or 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 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 methods and assumptions used to measure the fair value of financial instruments are as follows:

Short-term Investments

Short-term investments primarily include time deposits with original maturities greater than three months and less than one year. We estimated the fair value of our short-term investments, which approximates carrying value as of the balance sheet date, using Level 2 inputs within the fair value hierarchy. Level 2 measurements were based on current interest rates for similar investments with comparable credit risk and time to maturity.

Derivatives

The fair value of our interest rate management contracts and forward exchange contracts are quantified using the income approach and are based on estimates using standard pricing models. These models consider 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 pricing models utilize inputs that are derived from or corroborated by observable market data such as interest rate yield curves as well as currency spot and forward rates; therefore, the fair value of our derivatives is classified as a Level 2 measurement. 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 8, Financial Instruments, for a description of derivative instruments, including details related to the balance sheet line classifications.

Long-term Debt, Including Related Party

The fair value of our debt is based on estimates using standard pricing models that consider 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; therefore, the fair value of our debt is classified as a Level 2 measurement. We generally perform the computation of the fair value of these instruments.

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


	31 December 2021		30 September 2021
	Carrying Value	Fair Value	Carrying Value	Fair Value
Assets
Derivatives
Forward exchange contracts	$47.4	$47.4	$49.3	$49.3
Interest rate management contracts	37.7	37.7	34.1	34.1
Liabilities
Derivatives
Forward exchange contracts	$71.8	$71.8	$88.8	$88.8
Interest rate management contracts	56.0	56.0	32.7	32.7
Long-term debt, including current portion and related party	7,265.1	7,421.1	7,634.8	7,812.2

The carrying amounts reported on the consolidated balance sheets for cash and cash items, short-term investments, 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 table below summarizes assets and liabilities on the consolidated balance sheets that are measured at fair value on a recurring basis:


	31 December 2021				30 September 2021
	Total	Level 1	Level 2	Level 3	Total	Level 1	Level 2	Level 3
Assets at Fair Value



Derivatives
Forward exchange contracts	$47.4	$—	$47.4	$—	$49.3	$—	$49.3	$—
Interest rate management contracts	37.7	—	37.7	—	34.1	—	34.1	—
Total Assets at Fair Value	$85.1	$—	$85.1	$—	$83.4	$—	$83.4	$—
Liabilities at Fair Value
Derivatives
Forward exchange contracts	$71.8	$—	$71.8	$—	$88.8	$—	$88.8	$—
Interest rate management contracts	56.0	—	56.0	—	32.7	—	32.7	—
Total Liabilities at Fair Value	$127.8	$—	$127.8	$—	$121.5	$—	$121.5	$—

- Definition

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.

+ References + Details

Retirement Benefits

3 Months Ended

Dec. 31, 2021

Retirement Benefits [Abstract]

Retirement Benefits

RETIREMENT BENEFITS

The components of net periodic (benefit) cost for our defined benefit pension plans for the three months ended 31 December 2021 and 2020 were as follows:


	Pension Benefits
	2021		2020
Three Months Ended 31 December	U.S.	International	U.S.	International
Service cost	$4.6	$5.6	$5.4	$5.7
Interest cost	18.4	7.6	17.2	6.1
Expected return on plan assets	(42.1)	(17.7)	(48.6)	(20.2)
Prior service cost amortization	0.3	—	0.3	—
Actuarial loss amortization	16.7	3.9	19.7	4.6

Settlements	0.9	—	—	—


Other	—	0.8	—	0.3
Net Periodic (Benefit) Cost	($1.2)	$0.2	($6.0)	($3.5)

Our service costs are primarily included within "Cost of sales" and "Selling and administrative" on our consolidated income statements. The amount of service costs capitalized in the first three months of fiscal years 2022 and 2021 were not material. The non-service related impacts, including pension settlement losses, are presented outside operating income within "Other non-operating income (expense), net."

For the three months ended 31 December 2021 and 2020, our cash contributions to funded pension plans and benefit payments under unfunded pension plans were $9.1 and $21.2, respectively. Total contributions for fiscal year 2022 are expected to be approximately $40 to $50. During fiscal year 2021, total contributions were $44.6.

During the three months ended 31 December 2021 and 2020, we recognized actuarial gain amortization of $0.4 for our other postretirement benefits plan.

- Definition

The entire disclosure for retirement benefits.

+ References

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+ Details

Commitments and Contingencies	3 Months Ended
Commitments and Contingencies	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	COMMITMENTS AND CONTINGENCIES Litigation We are involved in various legal proceedings, including commercial, competition, environmental, intellectual property, regulatory, product liability, and insurance matters. We do not currently believe there are any legal proceedings, individually or in the aggregate, that are reasonably possible to have a material impact on our financial condition, results of operations, or cash flows. 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 $32 at 31 December 2021) on Air Products Brasil Ltda. This fine was based on a recommendation by a unit of the Brazilian Ministry of Justice, following an investigation beginning in 2003, which alleged 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. On 6 May 2014, our appeal was granted and the fine against Air Products Brasil Ltda. was dismissed. CADE has appealed that ruling and the matter remains pending. 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 possible, such a judgment is not probable. As a result, no provision has been made in the consolidated financial statements. In the event of an adverse final judgment, we estimate the maximum possible loss to be the full amount of the fine of R$179.2 million (approximately $32 at 31 December 2021) plus interest accrued thereon until final disposition of the proceedings. Additionally, Winter Storm Uri, a severe winter weather storm in the U.S. Gulf Coast in February 2021, disrupted our operations and caused power and natural gas prices to spike significantly in Texas. We remain in litigation of a dispute regarding energy management services related to the impact of this event, and other disputes may arise from such power price increases. In addition, legislative action may affect power supply and energy management charges. While it is reasonably possible that we could incur additional costs related to power supply and energy management services in Texas related to the winter storm, it is too early to estimate potential losses, if any, given significant unknowns resulting from the unusual nature of this event. Environmental In the normal course of business, we are involved in legal proceedings under the Comprehensive Environmental Response, Compensation, and Liability Act ("CERCLA," the federal Superfund law), Resource Conservation and Recovery Act ("RCRA"), and similar state and foreign environmental laws relating to the designation of certain sites for investigation or remediation. Presently, there are 32 sites on which a final settlement has not been reached where we, along with others, have been designated a potentially responsible party by environmental authorities 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. The consolidated balance sheets at 31 December 2021 and 30 September 2021 included an accrual of $75.6 and $76.7, 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 $74 to a reasonably possible upper exposure of $88 as of 31 December 2021. 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 31 December 2021, $39.2 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 recognized a before-tax expense of $42 in fiscal year 2006 in results from discontinued operations and recorded an environmental accrual of $42 in continuing operations on the consolidated balance sheets. During the second quarter of fiscal year 2020, we completed an updated cost review of the environmental remediation status at the Pace facility. The review was completed in conjunction with requirements to maintain financial assurance per the Consent Order issued by the FDEP discussed below. Based on our review, we expect ongoing activities to continue for 30 years. Additionally, we will require near-term spending to install new groundwater recovery wells and ancillary equipment, in addition to future capital to consider the extended time horizon for remediation at the site. As a result of these changes, we increased our environmental accrual for this site by $19 in continuing operations on the consolidated balance sheets and recognized a before-tax expense of $19 in results from discontinued operations in the second quarter of fiscal year 2020. There has been no change to the estimated exposure range related to the Pace facility since the second quarter of fiscal year 2020. We have implemented many of the remedial corrective measures at the Pace 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 corrective action management unit. Several groundwater recovery systems have been installed to contain and remove contamination from groundwater. We completed an extensive assessment of the site to determine the efficacy of existing measures, 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 remediate groundwater. Based on assessment results, we completed a focused feasibility study that has identified alternative approaches that may more effectively remove contaminants. We continue to review alternative remedial approaches with the FDEP and have started additional field work to support the design of an improved groundwater recovery network with the objective of targeting areas of higher contaminant concentration and avoiding areas of high groundwater iron which has proven to be a significant operability issue for the project. In the first quarter of 2015, we entered into a new Consent Order with the FDEP requiring us to continue our remediation efforts at the Pace facility, along with the completion of a cost review every 5 years. Piedmont At 31 December 2021, $9.3 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. We are required by the South Carolina Department of Health and Environmental Control ("SCDHEC") to address both contaminated soil and groundwater. Numerous areas of soil contamination have been addressed, and contaminated groundwater is being recovered and treated. The SCDHEC issued its final approval to the site-wide feasibility study on 13 June 2017 and the Record of Decision for the site on 27 June 2018, after which we signed a Consent Agreement Amendment memorializing our obligations to complete the cleanup of the site. Remediation has started in accordance with the design, which includes in-situ chemical oxidation treatment, as well as the installation of a soil vapor extraction system to remove volatile organic compounds from the unsaturated soils beneath the impacted areas of the plant. We estimate that source area remediation and groundwater recovery and treatment will continue through 2029. Thereafter, we expect this site to go into a state of monitored natural attenuation through 2047. We recognized a before-tax expense of $24 in 2008 as a component of income from discontinued operations and recorded an environmental liability of $24 in continuing operations on the consolidated balance sheets. There have been no significant changes to the estimated exposure. Pasadena At 31 December 2021, $11.2 of the environmental accrual was related to the Pasadena site. During the fourth quarter of 2012, management committed to permanently shutting down our polyurethane intermediates ("PUI") production facility in Pasadena, Texas. In shutting down and dismantling the facility, we have undertaken certain obligations related to soil and groundwater contaminants. We have been pumping and treating groundwater to control off-site contaminant migration in compliance with regulatory requirements and under the approval of the Texas Commission on Environmental Quality ("TCEQ"). We estimate that the pump and treat system will continue to operate until 2042. We plan to perform additional work to address other environmental obligations at the site. This additional work includes remediating, as required, impacted soils, investigating groundwater west of the former PUI facility, performing post closure care for two closed RCRA surface impoundment units, establishing engineering controls, and performing a pilot study to treat impacted soils. In 2012, we estimated the total exposure at this site to be $13. There have been no significant changes to the estimated exposure.

Share-Based Compensation

3 Months Ended

Dec. 31, 2021

Share-based Payment Arrangement [Abstract]

Share-Based Compensation

SHARE-BASED COMPENSATION

We have various share-based compensation programs, which include deferred stock units, stock options, and restricted stock. During the three months ended 31 December 2021, we granted market-based and time-based deferred stock units. Under all programs, the terms of the awards are fixed at the grant date. We issue shares from treasury stock upon the payout of deferred stock units, the exercise of stock options, and the issuance of restricted stock awards. As of 31 December 2021, there were 1.3 million shares available for future grant under our Long-Term Incentive Plan ("LTIP").

Share-based compensation cost recognized on the consolidated income statements is summarized below:


	Three Months Ended
	31 December
	2021	2020
Before-tax share-based compensation cost	$16.8	$9.5
Income tax benefit	(4.1)	(2.3)
After-tax share-based compensation cost	$12.7	$7.2

Before-tax share-based compensation cost is primarily included in "Selling and administrative" on our consolidated income statements. The amount of share-based compensation cost capitalized in the first three months of fiscal years 2022 and 2021 was not material.

Deferred Stock Units

During the three months ended 31 December 2021, we granted 74,079 market-based deferred stock units. The market-based deferred stock units are earned over the performance period beginning 1 October 2021 and ending 30 September 2024, conditioned on the level of our total shareholder return in relation to a defined peer group over the three-year performance period.

The market-based deferred stock units had an estimated grant-date fair value of $427.23 per unit, which was estimated using a Monte Carlo simulation model. The model utilizes multiple input variables that determine the probability of satisfying the market condition stipulated in the grant and calculates the fair value of the awards. We generally expense the grant-date fair value of these awards on a straight-line basis over the vesting period. The calculation of the fair value of market-based deferred stock units used the following assumptions:


Expected volatility	30.5	%
Risk-free interest rate	0.8	%
Expected dividend yield	2.1	%

In addition, during the three months ended 31 December 2021, we granted 94,892 time-based deferred stock units at a weighted average grant-date fair value of $285.92.

Accumulated Other Comprehensive Loss

3 Months Ended

Dec. 31, 2021

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Accumulated Other Comprehensive Loss

ACCUMULATED OTHER COMPREHENSIVE LOSS

The table below summarizes changes in accumulated other comprehensive loss ("AOCL"), net of tax, attributable to Air Products for the three months ended 31 December 2021:



	Derivatives qualifying as hedges	Foreign currency translation adjustments	Pension and postretirement benefits	Total
Balance at 30 September 2021	($28.3)	($893.8)	($593.8)	($1,515.9)
Other comprehensive (loss) income before reclassifications	(0.5)	40.6	—	40.1
Amounts reclassified from AOCL	18.7	—	16.0	34.7
Net current period other comprehensive income	18.2	40.6	16.0	74.8

Amount attributable to noncontrolling interests	7.4	3.8	—	11.2
Balance at 31 December 2021	($17.5)	($857.0)	($577.8)	($1,452.3)

The table below summarizes the reclassifications out of AOCL and the affected line item on the consolidated income statements:


	Three Months Ended
	31 December
	2021	2020
Loss (Gain) on Cash Flow Hedges, net of tax
Sales	$0.3	$0.1
Cost of sales	(0.1)	0.1

Interest expense	0.9	0.9
Other non-operating income (expense), net	17.6	(2.4)
Total Loss (Gain) on Cash Flow Hedges, net of tax	$18.7	($1.3)










Pension and Postretirement Benefits, net of tax(A)	$16.0	$18.3

(A)The components of net periodic benefit cost reclassified out of AOCL include items such as prior service cost amortization, actuarial loss amortization, and settlements and are included in “Other non-operating income (expense), net” on the consolidated income statements. Refer to Note 10, Retirement Benefits, for additional information.

Earnings Per Share

3 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Earnings Per Share

EARNINGS PER SHARE

The table below details the computation of basic and diluted earnings per share ("EPS"):


	Three Months Ended
	31 December
	2021	2020
Numerator
Net income from continuing operations	$560.4	$471.7
Net income from discontinued operations	—	10.3
Net Income Attributable to Air Products	$560.4	$482.0

Denominator (in millions)
Weighted average common shares — Basic	221.9	221.5
Effect of dilutive securities
Employee stock option and other award plans	0.7	1.1
Weighted average common shares — Diluted	222.6	222.6

Per Share Data*
Basic EPS from continuing operations	$2.53	$2.13
Basic EPS from discontinued operations	—	0.05
Basic EPS Attributable to Air Products	$2.53	$2.18

Diluted EPS from continuing operations	$2.52	$2.12
Diluted EPS from discontinued operations	—	0.05
Diluted EPS Attributable to Air Products	$2.52	$2.17

*EPS is calculated independently for each component and may not sum to total EPS due to rounding.

For the three months ended 31 December 2021 and 2020, there were no antidilutive outstanding share-based awards.

Income Taxes	3 Months Ended
Income Taxes	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES Effective Tax Rate Our effective tax rate was 17.1% and 19.3% for the three months ended 31 December 2021 and 2020, respectively. Cash Paid for Taxes (Net of Cash Refunds) Income tax payments, net of refunds, were $50.3 and $73.4 for the three months ended 31 December 2021 and 2020, respectively.

- Definition

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.

+ References

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+ Details

Supplemental Information	3 Months Ended
Supplemental Information	Dec. 31, 2021
Disclosure Text Block Supplement [Abstract]
Supplemental Information	SUPPLEMENTAL INFORMATION Related Party Transactions We have related party sales to some of our equity affiliates and joint venture partners as well as other income primarily from fees charged for use of Air Products' patents and technology as well as interest income on advances to unconsolidated affiliates. Sales to and other income from related parties totaled approximately $80 and $50 for the three months ended 31 December 2021 and 2020, respectively. Sales agreements with related parties include terms that are consistent with those that we believe would have been negotiated at an arm’s length with an independent party. As of 31 December 2021 and 30 September 2021, our consolidated balance sheets included related party trade receivables of approximately $130 and $90, respectively. We also have related party debt primarily for a loan with our joint venture partner, Lu’An Clean Energy Company, which partially funded the acquisition of their assets by a consolidated joint venture in 2018. Total related party debt, including the current portion, was $370.1 and $358.4 as of 31 December 2021 and 30 September 2021, respectively. Changes in Estimates Changes in estimates on projects accounted for under the cost incurred input method are recognized as a cumulative adjustment for the inception-to-date effect of such change. We recorded changes to project cost estimates during the first three months of fiscal year 2022 for which the impact to operating income was not material. Our changes in estimates would not have significantly impacted amounts recorded in prior years. Debt Repayment In November 2021, we repaid a 3.0% Senior Note of $400, plus interest, on its maturity date. Lessee Accounting During the three months ended 31 December 2021, we recorded noncash right-of-use asset additions of approximately $115, primarily for operating leases that had not yet commenced as of 30 September 2021.

Business Segment Information

3 Months Ended

Dec. 31, 2021

Segment Reporting [Abstract]

Business Segment Information

BUSINESS SEGMENT INFORMATION

Our reporting segments reflect the manner in which our chief operating decision maker reviews results and allocates resources. Effective 1 October 2021, we report our results under the following five reporting segments:

•Americas;

•Asia;

•Europe;

•Middle East and India; and

•Corporate and other

Except for the Corporate and other segment, each reporting segment meets the definition of an operating segment and does not include the aggregation of multiple operating segments. Our Corporate and other segment includes the aggregation of three operating segments that meet the aggregation criteria under GAAP.

Segment Reorganization

The segment results presented below reflect the segment reorganization announced on 4 November 2021. The reorganization included the separation of our former Industrial Gases – EMEA (Europe, Middle East, and Africa) segment into two separate reporting segments: (1) Europe and (2) Middle East and India. The results of an affiliate formerly reflected in the Asia segment are now reported in the Middle East and India segment. Additionally, the results of our Industrial Gases – Global operating segment are reflected in the Corporate and other segment. The prior year information presented below has been updated to conform with the fiscal year 2022 presentation.

Summary by Business Segment


	Americas	Asia	Europe	Middle East and India	Corporate and other	Total
Three Months Ended 31 December 2021
Sales	$1,224.1	$780.4	$744.2	$23.7	$221.8	$2,994.2	(A)
Operating income (loss)	267.2	221.1	99.2	4.8	(69.3)	523.0
Depreciation and amortization	155.3	110.8	49.8	6.1	10.3	332.3
Equity affiliates' income	34.2	6.6	13.9	92.3	0.8	147.8
Three Months Ended 31 December 2020
Sales	$933.0	$717.5	$543.5	$19.5	$161.7	$2,375.2	(A)
Operating income (loss)	225.8	214.8	137.5	4.0	(43.0)	539.1
Depreciation and amortization	151.8	107.9	49.3	6.1	8.6	323.7
Equity affiliates' income	22.3	8.8	14.9	21.2	2.1	69.3
Total Assets
31 December 2021	$7,381.5	$7,619.0	$3,951.7	$2,482.4	$5,690.7	$27,125.3
30 September 2021	7,092.5	7,349.4	3,830.3	800.6	7,786.4	26,859.2

(A)Sales relate to external customers only. All intersegment sales are eliminated in consolidation.

- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8924-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8981-108599

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8721-108599

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
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-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9031-108599

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 26
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8844-108599

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
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-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9054-108599

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8657-108599

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8721-108599

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-URI http://asc.fasb.org/topic&trid=2134510

+ Details

Basis of Presentation and Major Accounting Policies (Policies)	3 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The interim consolidated financial statements of Air Products and Chemicals, Inc. and its subsidiaries (“we,” “our,” “us,” the “Company,” “Air Products,” or “registrant”) included herein have been prepared by us, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (the "SEC"). Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles ("GAAP") have been condensed or omitted pursuant to such rules and regulations. In our opinion, the accompanying statements reflect adjustments necessary to present fairly the financial position, results of operations, and cash flows for those periods indicated and contain adequate disclosures to make the information presented not misleading. Adjustments included herein are of a normal, recurring nature unless otherwise disclosed in the notes to the interim consolidated financial statements. These notes, unless otherwise indicated, are presented on a continuing operations basis. To fully understand the basis of presentation, the interim consolidated financial statements and related notes included herein should be read in conjunction with the consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the fiscal year ended 30 September 2021 (the "2021 Form 10-K"). Results of operations for interim periods are not necessarily indicative of the results of operations for a full year.

Revenue Recognition (Tables)

3 Months Ended

Dec. 31, 2021

Revenue from Contract with Customer [Abstract]

Schedule of Consolidated Sales Disaggregated by Supply Mode


	Americas	Asia	Europe	Middle East and India	Corporate and other	Total	%
Three Months Ended 31 December 2021
On-site	$797.6	$451.6	$325.6	$16.3	$—	$1,591.1	53	%
Merchant	426.5	328.8	418.6	7.4	—	1,181.3	40	%
Sale of Equipment	—	—	—	—	221.8	221.8	7	%
Total	$1,224.1	$780.4	$744.2	$23.7	$221.8	$2,994.2	100	%

Three Months Ended 31 December 2020
On-site	$541.3	$414.9	$176.5	$12.2	$—	$1,144.9	48	%
Merchant	391.7	302.6	367.0	7.3	—	1,068.6	45	%
Sale of Equipment	—	—	—	—	161.7	161.7	7	%
Total	$933.0	$717.5	$543.5	$19.5	$161.7	$2,375.2	100	%

Schedule of Contract Assets and Liabilities

The table below details balances arising from contracts with customers:


		31 December	30 September
	Balance Sheet Location	2021	2021
Assets
Contract assets – current	Other receivables and current assets	$34.1	$119.4
Contract fulfillment costs – current	Other receivables and current assets	150.3	125.5
Liabilities
Contract liabilities – current	Payables and accrued liabilities	519.4	366.8
Contract liabilities – noncurrent	Other noncurrent liabilities	59.2	58.4

Inventories (Tables)

3 Months Ended

Dec. 31, 2021

Inventory Disclosure [Abstract]

Schedule of Inventory

The components of inventories are as follows:


	31 December	30 September
	2021	2021
Finished goods	$158.5	$150.7
Work in process	25.7	24.0
Raw materials, supplies and other	303.0	279.2
Inventories	$487.2	$453.9

Goodwill (Tables)

3 Months Ended

Dec. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

Changes to the carrying amount of consolidated goodwill by segment for the three months ended 31 December 2021 are as follows:


	Americas	Asia	Europe	Middle East and India	Corporate and other	Total
Goodwill, net at 30 September 2021	$151.0	$184.3	$533.5	$8.0	$34.7	$911.5

Acquisitions(A)	—	—	17.0	—	—	17.0
Currency translation and other	(2.3)	0.8	(3.7)	—	—	(5.2)
Goodwill, net at 31 December 2021	$148.7	$185.1	$546.8	$8.0	$34.7	$923.3


	31 December	30 September
	2021	2021
Goodwill, gross	$1,234.6	$1,239.2
Accumulated impairment losses(A)	(311.3)	(327.7)
Goodwill, net	$923.3	$911.5

(A)Accumulated impairment losses include the impacts of currency translation. These losses are attributable to our Latin America reporting unit ("LASA") within the Americas segment.

Financial Instruments (Tables)

3 Months Ended

Dec. 31, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Notional Amounts of Outstanding Derivative Instruments

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


	31 December 2021		30 September 2021
	US$ Notional	Years Average Maturity	US$ Notional	Years Average Maturity
Forward Exchange Contracts:
Cash flow hedges	$3,601.8	0.5	$3,465.2	0.6
Net investment hedges	619.4	2.8	638.0	3.0
Not designated	319.7	0.1	692.6	0.1
Total Forward Exchange Contracts	$4,540.9	0.8	$4,795.8	0.8

The table below summarizes our outstanding interest rate management contracts and cross currency interest rate swaps:


	31 December 2021						30 September 2021
	US$ Notional	Average Pay %		Average Receive %		Years Average Maturity	US$ Notional	Average Pay %		Average Receive %		Years Average Maturity
Interest rate swaps (fair value hedge)	$400.0	LIBOR		1.23	%	4.6	$200.0	LIBOR		2.76	%	0.1
Cross currency interest rate swaps (net investment hedge)	$214.4	4.34	%	3.15	%	2.0	$210.2	4.32	%	3.14	%	2.2
Cross currency interest rate swaps (cash flow hedge)	$1,032.8	4.97	%	2.93	%	2.5	$1,005.7	4.98	%	2.93	%	2.7
Cross currency interest rate swaps (not designated)	$—	—	%	—	%	0.0	$4.2	5.39	%	3.54	%	2.2

Schedule of Cumulative Basis Adjustments for Fair Value Hedges

The table below provides the amounts recorded on the consolidated balance sheet related to cumulative basis adjustments for fair value hedges:


	Carrying amounts of hedged item		Cumulative hedging adjustment, included in carrying amount
	31 December	30 September	31 December	30 September
Balance Sheet Location	2021	2021	2021	2021
Current portion of long-term debt	$—	$400.5	$—	$0.5
Long-term debt	1,192.9	—	(2.0)	—

Schedule of Fair Value and Balance Sheet Location of Derivative Instruments

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


	Balance Sheet	31 December	30 September	Balance Sheet	31 December	30 September
	Location	2021	2021	Location	2021	2021
Derivatives Designated as Hedging Instruments:
Forward exchange contracts	Other receivables and current assets	$40.4	$35.1	Payables and accrued liabilities	$52.0	$57.2
Interest rate management contracts	Other receivables and current assets	16.5	16.0	Payables and accrued liabilities	8.6	5.2
Forward exchange contracts	Other noncurrent assets	4.7	5.5	Other noncurrent liabilities	18.2	25.2
Interest rate management contracts	Other noncurrent assets	21.2	18.1	Other noncurrent liabilities	47.4	27.5
Total Derivatives Designated as Hedging Instruments		$82.8	$74.7		$126.2	$115.1
Derivatives Not Designated as Hedging Instruments:
Forward exchange contracts	Other receivables and current assets	2.3	8.7	Payables and accrued liabilities	1.6	6.4



Total Derivatives Not Designated as Hedging Instruments		$2.3	$8.7		$1.6	$6.4
Total Derivatives		$85.1	$83.4		$127.8	$121.5

Schedule of Gains and Losses Recognized in Other Comprehensive Income Related Net Investment and Cash Flow Hedges

The tables below summarize gains (losses) recognized in other comprehensive income during the period related to our net investment and cash flow hedging relationships:


	Three Months Ended
	31 December
	2021	2020
Net Investment Hedging Relationships
Forward exchange contracts	$14.5	($35.9)
Foreign currency debt	27.6	(64.2)
Cross currency interest rate swaps	(2.3)	(14.2)
Total Amount Recognized in OCI	39.8	(114.3)
Tax effects	(9.8)	28.6
Net Amount Recognized in OCI	$30.0	($85.7)


	Three Months Ended
	31 December
	2021	2020
Derivatives in Cash Flow Hedging Relationships
Forward exchange contracts	($23.4)	$64.7
Forward exchange contracts, excluded components	(2.7)	(2.7)
Other(A)	14.5	(45.5)
Total Amount Recognized in OCI	(11.6)	16.5
Tax effects	11.1	(2.7)
Net Amount Recognized in OCI	($0.5)	$13.8

Schedule of Amounts Recognized in Income Related to Cash Flow and Fair Value Hedges

The tables below summarize the location and amounts recognized in income related to our cash flow and fair value hedging relationships by contract type:


	Three Months Ended 31 December
	Sales		Cost of Sales		Interest Expense			Other Non-Operating Income (Expense), Net
	2021	2020	2021	2020		2021	2020		2021	2020
Total presented in consolidated income statements that includes effects of hedging below	$2,994.2	$2,375.2	$2,223.6	$1,632.4		$30.5	$36.7		$22.6	$18.6

(Gain) Loss Effects of Cash Flow Hedging:

Forward Exchange Contracts:
Amount reclassified from OCI into income	$0.4	$0.1	($0.1)	($0.1)		$—	$—		$14.5	($51.6)

Amount excluded from effectiveness testing recognized in earnings based on amortization approach	—	—	—	—		—	—		1.3	2.8
Other:
Amount reclassified from OCI into income	—	—	—	—		1.4	1.4		7.3	45.3

Total (Gain) Loss Reclassified from OCI to Income	0.4	0.1	(0.1)	(0.1)		1.4	1.4		23.1	(3.5)
Tax effects	(0.1)	—	—	0.2		(0.5)	(0.5)		(5.5)	1.1
Net (Gain) Loss Reclassified from OCI to Income	$0.3	$0.1	($0.1)	$0.1		$0.9	$0.9		$17.6	($2.4)

(Gain) Loss Effects of Fair Value Hedging:

Other:
Hedged items	$—	$—	$—	$—		($2.5)	($1.3)		$—	$—
Derivatives designated as hedging instruments	—	—	—	—		2.5	1.3		—	—
Total (Gain) Loss Recognized in Income	$—	$—	$—	$—		$—	$—		$—	$—

Schedule of Effects of Derivatives Not Designated as a Hedging Instrument

The tables below summarize the location and amounts recognized in income related to our derivatives not designated as hedging instruments by contract type:


	Three Months Ended 31 December
	Other Income (Expense), Net		Other Non-Operating Income (Expense), Net
	2021	2020	2021	2020
The Effects of Derivatives Not Designated as Hedging Instruments:
Forward Exchange Contracts	$1.1	$2.8	($0.6)	($1.3)
Other	—	—	0.1	0.5
Total (Gain) Loss Recognized in Income	$1.1	$2.8	($0.5)	($0.8)

Fair Value Measurements (Tables)

3 Months Ended

Dec. 31, 2021

Fair Value Disclosures [Abstract]

Schedule of Carrying Value and Fair Value of Financial Instruments

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


	31 December 2021		30 September 2021
	Carrying Value	Fair Value	Carrying Value	Fair Value
Assets
Derivatives
Forward exchange contracts	$47.4	$47.4	$49.3	$49.3
Interest rate management contracts	37.7	37.7	34.1	34.1
Liabilities
Derivatives
Forward exchange contracts	$71.8	$71.8	$88.8	$88.8
Interest rate management contracts	56.0	56.0	32.7	32.7
Long-term debt, including current portion and related party	7,265.1	7,421.1	7,634.8	7,812.2

Schedule of Fair Value Assets and Liabilities Measured On Recurring Basis

The table below summarizes assets and liabilities on the consolidated balance sheets that are measured at fair value on a recurring basis:


	31 December 2021				30 September 2021
	Total	Level 1	Level 2	Level 3	Total	Level 1	Level 2	Level 3
Assets at Fair Value



Derivatives
Forward exchange contracts	$47.4	$—	$47.4	$—	$49.3	$—	$49.3	$—
Interest rate management contracts	37.7	—	37.7	—	34.1	—	34.1	—
Total Assets at Fair Value	$85.1	$—	$85.1	$—	$83.4	$—	$83.4	$—
Liabilities at Fair Value
Derivatives
Forward exchange contracts	$71.8	$—	$71.8	$—	$88.8	$—	$88.8	$—
Interest rate management contracts	56.0	—	56.0	—	32.7	—	32.7	—
Total Liabilities at Fair Value	$127.8	$—	$127.8	$—	$121.5	$—	$121.5	$—

Retirement Benefits (Tables)

3 Months Ended

Dec. 31, 2021

Retirement Benefits [Abstract]

Schedule of Net Periodic Benefit Cost

The components of net periodic (benefit) cost for our defined benefit pension plans for the three months ended 31 December 2021 and 2020 were as follows:


	Pension Benefits
	2021		2020
Three Months Ended 31 December	U.S.	International	U.S.	International
Service cost	$4.6	$5.6	$5.4	$5.7
Interest cost	18.4	7.6	17.2	6.1
Expected return on plan assets	(42.1)	(17.7)	(48.6)	(20.2)
Prior service cost amortization	0.3	—	0.3	—
Actuarial loss amortization	16.7	3.9	19.7	4.6

Settlements	0.9	—	—	—


Other	—	0.8	—	0.3
Net Periodic (Benefit) Cost	($1.2)	$0.2	($6.0)	($3.5)

Share-Based Compensation (Tables)

3 Months Ended

Dec. 31, 2021

Share-based Payment Arrangement [Abstract]

Schedule of Recognized Share-Based Compensation Cost

Share-based compensation cost recognized on the consolidated income statements is summarized below:


	Three Months Ended
	31 December
	2021	2020
Before-tax share-based compensation cost	$16.8	$9.5
Income tax benefit	(4.1)	(2.3)
After-tax share-based compensation cost	$12.7	$7.2

Schedule of Assumptions for Fair Value of Market-Based Deferred Stock Units

The calculation of the fair value of market-based deferred stock units used the following assumptions:


Expected volatility	30.5	%
Risk-free interest rate	0.8	%
Expected dividend yield	2.1	%

Accumulated Other Comprehensive Loss (Tables)

3 Months Ended

Dec. 31, 2021

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss)

The table below summarizes changes in accumulated other comprehensive loss ("AOCL"), net of tax, attributable to Air Products for the three months ended 31 December 2021:



	Derivatives qualifying as hedges	Foreign currency translation adjustments	Pension and postretirement benefits	Total
Balance at 30 September 2021	($28.3)	($893.8)	($593.8)	($1,515.9)
Other comprehensive (loss) income before reclassifications	(0.5)	40.6	—	40.1
Amounts reclassified from AOCL	18.7	—	16.0	34.7
Net current period other comprehensive income	18.2	40.6	16.0	74.8

Amount attributable to noncontrolling interests	7.4	3.8	—	11.2
Balance at 31 December 2021	($17.5)	($857.0)	($577.8)	($1,452.3)

Schedule of Reclassification out of Accumulated Other Comprehensive Income (Loss)

The table below summarizes the reclassifications out of AOCL and the affected line item on the consolidated income statements:


	Three Months Ended
	31 December
	2021	2020
Loss (Gain) on Cash Flow Hedges, net of tax
Sales	$0.3	$0.1
Cost of sales	(0.1)	0.1

Interest expense	0.9	0.9
Other non-operating income (expense), net	17.6	(2.4)
Total Loss (Gain) on Cash Flow Hedges, net of tax	$18.7	($1.3)










Pension and Postretirement Benefits, net of tax(A)	$16.0	$18.3

Earnings Per Share (Tables)

3 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Schedule of Computation of Basic and Diluted Earnings Per Share

The table below details the computation of basic and diluted earnings per share ("EPS"):


	Three Months Ended
	31 December
	2021	2020
Numerator
Net income from continuing operations	$560.4	$471.7
Net income from discontinued operations	—	10.3
Net Income Attributable to Air Products	$560.4	$482.0

Denominator (in millions)
Weighted average common shares — Basic	221.9	221.5
Effect of dilutive securities
Employee stock option and other award plans	0.7	1.1
Weighted average common shares — Diluted	222.6	222.6

Per Share Data*
Basic EPS from continuing operations	$2.53	$2.13
Basic EPS from discontinued operations	—	0.05
Basic EPS Attributable to Air Products	$2.53	$2.18

Diluted EPS from continuing operations	$2.52	$2.12
Diluted EPS from discontinued operations	—	0.05
Diluted EPS Attributable to Air Products	$2.52	$2.17

Business Segment Information (Tables)

3 Months Ended

Dec. 31, 2021

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment


	Americas	Asia	Europe	Middle East and India	Corporate and other	Total
Three Months Ended 31 December 2021
Sales	$1,224.1	$780.4	$744.2	$23.7	$221.8	$2,994.2	(A)
Operating income (loss)	267.2	221.1	99.2	4.8	(69.3)	523.0
Depreciation and amortization	155.3	110.8	49.8	6.1	10.3	332.3
Equity affiliates' income	34.2	6.6	13.9	92.3	0.8	147.8
Three Months Ended 31 December 2020
Sales	$933.0	$717.5	$543.5	$19.5	$161.7	$2,375.2	(A)
Operating income (loss)	225.8	214.8	137.5	4.0	(43.0)	539.1
Depreciation and amortization	151.8	107.9	49.3	6.1	8.6	323.7
Equity affiliates' income	22.3	8.8	14.9	21.2	2.1	69.3
Total Assets
31 December 2021	$7,381.5	$7,619.0	$3,951.7	$2,482.4	$5,690.7	$27,125.3
30 September 2021	7,092.5	7,349.4	3,830.3	800.6	7,786.4	26,859.2

(A)Sales relate to external customers only. All intersegment sales are eliminated in consolidation.

Revenue Recognition (Disaggregation of Revenue) (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Sales	$ 2,994.2	$ 2,375.2
Operating Segments
Disaggregation of Revenue [Line Items]
Sales	$ 2,994.2	$ 2,375.2
Percent sales by supply mode	100.00%	100.00%
Americas \| Operating Segments
Disaggregation of Revenue [Line Items]
Sales	$ 1,224.1	$ 933.0
Asia \| Operating Segments
Disaggregation of Revenue [Line Items]
Sales	780.4	717.5
Europe \| Operating Segments
Disaggregation of Revenue [Line Items]
Sales	744.2	543.5
Middle East and India \| Operating Segments
Disaggregation of Revenue [Line Items]
Sales	23.7	19.5
Corporate and other \| Operating Segments
Disaggregation of Revenue [Line Items]
Sales	221.8	161.7
On-site \| Operating Segments
Disaggregation of Revenue [Line Items]
Sales	$ 1,591.1	$ 1,144.9
Percent sales by supply mode	53.00%	48.00%
On-site \| Americas \| Operating Segments
Disaggregation of Revenue [Line Items]
Sales	$ 797.6	$ 541.3
On-site \| Asia \| Operating Segments
Disaggregation of Revenue [Line Items]
Sales	451.6	414.9
On-site \| Europe \| Operating Segments
Disaggregation of Revenue [Line Items]
Sales	325.6	176.5
On-site \| Middle East and India \| Operating Segments
Disaggregation of Revenue [Line Items]
Sales	16.3	12.2
On-site \| Corporate and other \| Operating Segments
Disaggregation of Revenue [Line Items]
Sales	0.0	0.0
Merchant \| Operating Segments
Disaggregation of Revenue [Line Items]
Sales	$ 1,181.3	$ 1,068.6
Percent sales by supply mode	40.00%	45.00%
Merchant \| Americas \| Operating Segments
Disaggregation of Revenue [Line Items]
Sales	$ 426.5	$ 391.7
Merchant \| Asia \| Operating Segments
Disaggregation of Revenue [Line Items]
Sales	328.8	302.6
Merchant \| Europe \| Operating Segments
Disaggregation of Revenue [Line Items]
Sales	418.6	367.0
Merchant \| Middle East and India \| Operating Segments
Disaggregation of Revenue [Line Items]
Sales	7.4	7.3
Merchant \| Corporate and other \| Operating Segments
Disaggregation of Revenue [Line Items]
Sales	0.0	0.0
Sale of Equipment \| Operating Segments
Disaggregation of Revenue [Line Items]
Sales	$ 221.8	$ 161.7
Percent sales by supply mode	7.00%	7.00%
Sale of Equipment \| Americas \| Operating Segments
Disaggregation of Revenue [Line Items]
Sales	$ 0.0	$ 0.0
Sale of Equipment \| Asia \| Operating Segments
Disaggregation of Revenue [Line Items]
Sales	0.0	0.0
Sale of Equipment \| Europe \| Operating Segments
Disaggregation of Revenue [Line Items]
Sales	0.0	0.0
Sale of Equipment \| Middle East and India \| Operating Segments
Disaggregation of Revenue [Line Items]
Sales	0.0	0.0
Sale of Equipment \| Corporate and other \| Operating Segments
Disaggregation of Revenue [Line Items]
Sales	$ 221.8	$ 161.7

Revenue Recognition (Remaining Performance Obligations) (Details) $ in Billions	Dec. 31, 2021 USD ($)
Revenue from Contract with Customer [Abstract]
Transaction price allocated to remaining performance obligations	$ 24
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Percentage of remaining performance obligation	50.00%
Estimated timing of recognition of performance obligation	5 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Percentage of remaining performance obligation	50.00%
Estimated timing of recognition of performance obligation

Revenue Recognition (Contract Assets and Liabilities) (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2021	Sep. 30, 2021
Contract Assets and Liabilities
Contract assets - current	$ 34.1	$ 119.4
Contract fulfillment costs - current	150.3	125.5
Contract liabilities - current	519.4	366.8
Contract liabilities - noncurrent	59.2	$ 58.4
Revenue recognized that was previously included in current contract liabilities	$ 90.0

Discontinued Operations (Narrative) (Details) $ in Millions	3 Months Ended
Discontinued Operations (Narrative) (Details) $ in Millions	Dec. 31, 2020 USD ($)
PMD \| Discontinued operations
Discontinued Operations [Line Items]
Tax benefit related to settlement	$ (10.3)

- Definition

Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 3B
-URI http://asc.fasb.org/extlink&oid=109222160&loc=SL51721525-107759

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 20
-Section 45
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123586238&loc=d3e38679-109324

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=109222160&loc=d3e1012-107759

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109222650&loc=d3e1361-107760

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 3A
-URI http://asc.fasb.org/extlink&oid=109222160&loc=SL51721523-107759

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 6.I.7)
-URI http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817

Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5C
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721675-107760

Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5B
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721673-107760

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32672-109319

+ Details

Inventories (Schedule of Inventory) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Sep. 30, 2021
Inventory Disclosure [Abstract]
Finished goods	$ 158.5	$ 150.7
Work in process	25.7	24.0
Raw materials, supplies and other	303.0	279.2
Inventories	$ 487.2	$ 453.9

Equity Affiliates (Details) - USD ($) $ in Millions			3 Months Ended		12 Months Ended
Equity Affiliates (Details) - USD ($) $ in Millions	Oct. 27, 2021	Sep. 27, 2021	Dec. 31, 2021	Dec. 31, 2015	Sep. 30, 2023	Sep. 30, 2021
JIGPC
Schedule of Equity Method Investments [Line Items]
Payments for equity investment	$ 1,600.0
Ownership interest percentage	55.00%		55.00%
Ownership percentage attributable to noncontrolling partner	4.00%
Investment balance			$ 1,696.1
JIGPC \| Non-controlling Interests
Schedule of Equity Method Investments [Line Items]
Payments for equity investment	$ 130.0
JIGPC \| Forecast
Schedule of Equity Method Investments [Line Items]
Payments for equity investment					$ 1,000.0
JGPC
Schedule of Equity Method Investments [Line Items]
Ownership interest percentage			26.00%
JIGPC \| Aramco
Schedule of Equity Method Investments [Line Items]
Definitive agreement for acquisition of assets, value		$ 12,000.0
Acquisition of assets	$ 7,000.0
Term of agreement to commission, operate, and maintain the project assets		25 years
JGPC \| Aramco
Schedule of Equity Method Investments [Line Items]
Term of oxygen and nitrogen supply agreement				20 years
Obligation for equity contributions based on share of advances received by joint venture under bridge loan
Schedule of Equity Method Investments [Line Items]
Obligation for future contribution to an equity affiliate			$ 0.0			$ 94.4
Noncash adjustment for reduction of contractual obligation			$ 94.4

Goodwill (Schedule of Goodwill by Segment) (Details) $ in Millions	3 Months Ended
	Dec. 31, 2021 USD ($)
Goodwill [Roll Forward]
Goodwill, net, beginning balance	$ 911.5
Acquisitions	17.0
Currency translation and other	(5.2)
Goodwill, net, ending balance	923.3
Americas
Goodwill [Roll Forward]
Goodwill, net, beginning balance	151.0
Acquisitions	0.0
Currency translation and other	(2.3)
Goodwill, net, ending balance	148.7
Asia
Goodwill [Roll Forward]
Goodwill, net, beginning balance	184.3
Acquisitions	0.0
Currency translation and other	0.8
Goodwill, net, ending balance	185.1
Europe
Goodwill [Roll Forward]
Goodwill, net, beginning balance	533.5
Acquisitions	17.0
Currency translation and other	(3.7)
Goodwill, net, ending balance	546.8
Middle East and India
Goodwill [Roll Forward]
Goodwill, net, beginning balance	8.0
Acquisitions	0.0
Currency translation and other	0.0
Goodwill, net, ending balance	8.0
Corporate and other
Goodwill [Roll Forward]
Goodwill, net, beginning balance	34.7
Acquisitions	0.0
Currency translation and other	0.0
Goodwill, net, ending balance	$ 34.7

Goodwill (Schedule of Accumulated Impairment Losses) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Sep. 30, 2021
Goodwill [Line Items]
Goodwill, gross	$ 1,234.6	$ 1,239.2
Goodwill, net	923.3	911.5
Americas
Goodwill [Line Items]
Goodwill, accumulated impairment losses	(311.3)	(327.7)
Goodwill, net	$ 148.7	$ 151.0

Financial Instruments (Narrative) (Details) € in Millions	3 Months Ended		12 Months Ended
Financial Instruments (Narrative) (Details) € in Millions	Dec. 31, 2021 USD ($)	Dec. 31, 2021 EUR (€)	Sep. 30, 2021 USD ($)	Sep. 30, 2021 EUR (€)
Derivative [Line Items]
Net liability position of derivatives with credit risk-related contingent features	$ 71,500,000		$ 53,400,000
Collateral posted on liability positions with credit risk-related contingent features	0
Collateral amount that counterparties would be required to post	$ 48,000,000.0		38,100,000
Forward exchange contracts \| Cash Flow Hedges
Derivative [Line Items]
Maximum remaining maturity of foreign currency derivatives	3 years 8 months 12 days	3 years 8 months 12 days
Foreign currency debt \| Euro Denominated
Derivative [Line Items]
Notional amount included in designated foreign currency denominated debt	$ 1,485,900,000	€ 1,306.9	$ 1,502,600,000	€ 1,297.5

Financial Instruments (Currency Price Risk Management Instruments) (Details) - Forward exchange contracts - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021
Derivative [Line Items]
US$ Notional	$ 4,540.9	$ 4,795.8
Years Average Maturity	9 months 18 days	9 months 18 days
Designated as Hedging Instrument \| Cash Flow Hedges
Derivative [Line Items]
US$ Notional	$ 3,601.8	$ 3,465.2
Years Average Maturity	6 months	7 months 6 days
Designated as Hedging Instrument \| Net Investment Hedges
Derivative [Line Items]
US$ Notional	$ 619.4	$ 638.0
Years Average Maturity	2 years 9 months 18 days	3 years
Not Designated as Hedging Instrument
Derivative [Line Items]
US$ Notional	$ 319.7	$ 692.6
Years Average Maturity	1 month 6 days	1 month 6 days

Financial Instruments (Interest Rate Management Contracts and Cross Currency Interest Rate Swaps) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021
Interest Rate Swaps Contracts \| Designated as Hedging Instrument \| Fair Value Hedges
Derivative [Line Items]
US$ Notional	$ 400.0	$ 200.0
Average Pay %	LIBOR	LIBOR
Average Receive %	1.23%	2.76%
Years Average Maturity	4 years 7 months 6 days	1 month 6 days
Cross currency interest rate swaps \| Designated as Hedging Instrument \| Net Investment Hedges
Derivative [Line Items]
US$ Notional	$ 214.4	$ 210.2
Average Pay %	4.34%	4.32%
Average Receive %	3.15%	3.14%
Years Average Maturity	2 years	2 years 2 months 12 days
Cross currency interest rate swaps \| Designated as Hedging Instrument \| Cash Flow Hedges
Derivative [Line Items]
US$ Notional	$ 1,032.8	$ 1,005.7
Average Pay %	4.97%	4.98%
Average Receive %	2.93%	2.93%
Years Average Maturity	2 years 6 months	2 years 8 months 12 days
Cross currency interest rate swaps \| Not Designated as Hedging Instrument
Derivative [Line Items]
US$ Notional	$ 0.0	$ 4.2
Average Pay %	0.00%	5.39%
Average Receive %	0.00%	3.54%
Years Average Maturity	0 years	2 years 2 months 12 days

Financial Instruments (Carrying Amount and Cumulative Hedging Adjustment) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Sep. 30, 2021
Current portion of long-term debt
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Carrying amounts of hedged item	$ 0.0	$ 400.5
Cumulative hedging adjustment, included in carrying amount	0.0	0.5
Long-term debt
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Carrying amounts of hedged item	1,192.9	0.0
Cumulative hedging adjustment, included in carrying amount	$ (2.0)	$ 0.0

Financial Instruments (Fair Value and Balance Sheet Location of Derivatives) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Sep. 30, 2021
Derivative [Line Items]
Total Derivatives, Assets	$ 85.1	$ 83.4
Total Derivatives, Liabilities	127.8	121.5
Designated as Hedging Instrument
Derivative [Line Items]
Total Derivatives, Assets	82.8	74.7
Total Derivatives, Liabilities	126.2	115.1
Designated as Hedging Instrument \| Other Receivables and Current Assets \| Forward exchange contracts
Derivative [Line Items]
Total Derivatives, Assets	40.4	35.1
Designated as Hedging Instrument \| Other Receivables and Current Assets \| Interest Rate Management Contracts
Derivative [Line Items]
Total Derivatives, Assets	16.5	16.0
Designated as Hedging Instrument \| Other Noncurrent Assets \| Forward exchange contracts
Derivative [Line Items]
Total Derivatives, Assets	4.7	5.5
Designated as Hedging Instrument \| Other Noncurrent Assets \| Interest Rate Management Contracts
Derivative [Line Items]
Total Derivatives, Assets	21.2	18.1
Designated as Hedging Instrument \| Accrued Liabilities \| Forward exchange contracts
Derivative [Line Items]
Total Derivatives, Liabilities	52.0	57.2
Designated as Hedging Instrument \| Accrued Liabilities \| Interest Rate Management Contracts
Derivative [Line Items]
Total Derivatives, Liabilities	8.6	5.2
Designated as Hedging Instrument \| Other Noncurrent Liabilities \| Forward exchange contracts
Derivative [Line Items]
Total Derivatives, Liabilities	18.2	25.2
Designated as Hedging Instrument \| Other Noncurrent Liabilities \| Interest Rate Management Contracts
Derivative [Line Items]
Total Derivatives, Liabilities	47.4	27.5
Not Designated as Hedging Instrument
Derivative [Line Items]
Total Derivatives, Assets	2.3	8.7
Total Derivatives, Liabilities	1.6	6.4
Not Designated as Hedging Instrument \| Other Receivables and Current Assets \| Forward exchange contracts
Derivative [Line Items]
Total Derivatives, Assets	2.3	8.7
Not Designated as Hedging Instrument \| Accrued Liabilities \| Forward exchange contracts
Derivative [Line Items]
Total Derivatives, Liabilities	$ 1.6	$ 6.4

Financial Instruments (Gains and Losses Recognized In Other Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Net Investment Hedging Relationships
Tax effects	$ (7.6)	$ 24.2
Net Amount Recognized in OCI	40.6	415.7
Derivatives in Cash Flow Hedging Relationships
Tax effects	11.1	(2.7)
Net Amount Recognized in OCI	(0.5)	13.8
Net Investment Hedges
Net Investment Hedging Relationships
Total Amount Recognized in OCI	39.8	(114.3)
Tax effects	(9.8)	28.6
Net Amount Recognized in OCI	30.0	(85.7)
Net Investment Hedges \| Forward exchange contracts
Net Investment Hedging Relationships
Total Amount Recognized in OCI	14.5	(35.9)
Net Investment Hedges \| Foreign currency debt
Net Investment Hedging Relationships
Total Amount Recognized in OCI	27.6	(64.2)
Net Investment Hedges \| Cross currency interest rate swaps
Net Investment Hedging Relationships
Total Amount Recognized in OCI	(2.3)	(14.2)
Cash Flow Hedges
Derivatives in Cash Flow Hedging Relationships
Total Amount Recognized in OCI	(11.6)	16.5
Tax effects	11.1	(2.7)
Net Amount Recognized in OCI	(0.5)	13.8
Cash Flow Hedges \| Forward exchange contracts
Derivatives in Cash Flow Hedging Relationships
Total Amount Recognized in OCI	(23.4)	64.7
Cash Flow Hedges \| Forward exchange contracts, excluded components
Derivatives in Cash Flow Hedging Relationships
Total Amount Recognized in OCI	(2.7)	(2.7)
Cash Flow Hedges \| Other
Derivatives in Cash Flow Hedging Relationships
Total Amount Recognized in OCI	$ 14.5	$ (45.5)

Financial Instruments (Cash Flow and Fair Value Hedges Location and Amounts Recognized) (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Total presented in consolidated income statements that includes effects of hedging below
Sales	$ 2,994.2	$ 2,375.2
Cost of sales	2,223.6	1,632.4
Other income (expense), net	8.5	22.5
Interest expense	30.5	36.7
Other non-operating income (expense), net	22.6	18.6
(Gain) Loss Effects of Cash Flow Hedging:
Tax effects	(6.1)	0.8
Net (Gain) Loss Reclassified from OCI to Income	18.7	(1.3)
Cash Flow Hedges \| Sales
(Gain) Loss Effects of Cash Flow Hedging:
Amount reclassified from OCI into income	0.4	0.1
Tax effects	(0.1)	0.0
Net (Gain) Loss Reclassified from OCI to Income	0.3	0.1
Cash Flow Hedges \| Cost of Sales
(Gain) Loss Effects of Cash Flow Hedging:
Amount reclassified from OCI into income	(0.1)	(0.1)
Tax effects	0.0	0.2
Net (Gain) Loss Reclassified from OCI to Income	(0.1)	0.1
Cash Flow Hedges \| Interest Expense
(Gain) Loss Effects of Cash Flow Hedging:
Amount reclassified from OCI into income	1.4	1.4
Tax effects	(0.5)	(0.5)
Net (Gain) Loss Reclassified from OCI to Income	0.9	0.9
Cash Flow Hedges \| Other Non-Operating Income (Expense), Net
(Gain) Loss Effects of Cash Flow Hedging:
Amount reclassified from OCI into income	23.1	(3.5)
Tax effects	(5.5)	1.1
Net (Gain) Loss Reclassified from OCI to Income	17.6	(2.4)
Cash Flow Hedges \| Forward exchange contracts \| Sales
(Gain) Loss Effects of Cash Flow Hedging:
Amount reclassified from OCI into income	0.4	0.1
Cash Flow Hedges \| Forward exchange contracts \| Cost of Sales
(Gain) Loss Effects of Cash Flow Hedging:
Amount reclassified from OCI into income	(0.1)	(0.1)
Cash Flow Hedges \| Forward exchange contracts \| Interest Expense
(Gain) Loss Effects of Cash Flow Hedging:
Amount reclassified from OCI into income	0.0	0.0
Cash Flow Hedges \| Forward exchange contracts \| Other Non-Operating Income (Expense), Net
(Gain) Loss Effects of Cash Flow Hedging:
Amount reclassified from OCI into income	14.5	(51.6)
Cash Flow Hedges \| Forward exchange contracts, excluded components \| Sales
(Gain) Loss Effects of Cash Flow Hedging:
Amount excluded from effectiveness testing recognized in earnings based on amortization approach	0.0	0.0
Cash Flow Hedges \| Forward exchange contracts, excluded components \| Cost of Sales
(Gain) Loss Effects of Cash Flow Hedging:
Amount excluded from effectiveness testing recognized in earnings based on amortization approach	0.0	0.0
Cash Flow Hedges \| Forward exchange contracts, excluded components \| Interest Expense
(Gain) Loss Effects of Cash Flow Hedging:
Amount excluded from effectiveness testing recognized in earnings based on amortization approach	0.0	0.0
Cash Flow Hedges \| Forward exchange contracts, excluded components \| Other Non-Operating Income (Expense), Net
(Gain) Loss Effects of Cash Flow Hedging:
Amount excluded from effectiveness testing recognized in earnings based on amortization approach	1.3	2.8
Cash Flow Hedges \| Other \| Sales
(Gain) Loss Effects of Cash Flow Hedging:
Amount reclassified from OCI into income	0.0	0.0
Cash Flow Hedges \| Other \| Cost of Sales
(Gain) Loss Effects of Cash Flow Hedging:
Amount reclassified from OCI into income	0.0	0.0
Cash Flow Hedges \| Other \| Interest Expense
(Gain) Loss Effects of Cash Flow Hedging:
Amount reclassified from OCI into income	1.4	1.4
Cash Flow Hedges \| Other \| Other Non-Operating Income (Expense), Net
(Gain) Loss Effects of Cash Flow Hedging:
Amount reclassified from OCI into income	7.3	45.3
Fair Value Hedges \| Sales
(Gain) Loss Effects of Fair Value Hedging:
Total (Gain) Loss Recognized in Income	0.0	0.0
Fair Value Hedges \| Cost of Sales
(Gain) Loss Effects of Fair Value Hedging:
Total (Gain) Loss Recognized in Income	0.0	0.0
Fair Value Hedges \| Interest Expense
(Gain) Loss Effects of Fair Value Hedging:
Total (Gain) Loss Recognized in Income	0.0	0.0
Fair Value Hedges \| Other Non-Operating Income (Expense), Net
(Gain) Loss Effects of Fair Value Hedging:
Total (Gain) Loss Recognized in Income	0.0	0.0
Fair Value Hedges \| Other \| Sales
(Gain) Loss Effects of Fair Value Hedging:
Hedged items	0.0	0.0
Derivatives designated as hedging instruments	0.0	0.0
Fair Value Hedges \| Other \| Cost of Sales
(Gain) Loss Effects of Fair Value Hedging:
Hedged items	0.0	0.0
Derivatives designated as hedging instruments	0.0	0.0
Fair Value Hedges \| Other \| Interest Expense
(Gain) Loss Effects of Fair Value Hedging:
Hedged items	(2.5)	(1.3)
Derivatives designated as hedging instruments	2.5	1.3
Fair Value Hedges \| Other \| Other Non-Operating Income (Expense), Net
(Gain) Loss Effects of Fair Value Hedging:
Hedged items	0.0	0.0
Derivatives designated as hedging instruments	$ 0.0	$ 0.0

Financial Instruments (Effects of Derivatives Not Designated as a Hedging Instrument) (Details) - Not Designated as Hedging Instrument - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Other Income (Expense), Net
Derivative Instruments, Gain (Loss) [Line Items]
Total (Gain) Loss Recognized in Income	$ 1.1	$ 2.8
Other Income (Expense), Net \| Forward exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Total (Gain) Loss Recognized in Income	1.1	2.8
Other Income (Expense), Net \| Other
Derivative Instruments, Gain (Loss) [Line Items]
Total (Gain) Loss Recognized in Income	0.0	0.0
Other Non-Operating Income (Expense), Net
Derivative Instruments, Gain (Loss) [Line Items]
Total (Gain) Loss Recognized in Income	(0.5)	(0.8)
Other Non-Operating Income (Expense), Net \| Forward exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Total (Gain) Loss Recognized in Income	(0.6)	(1.3)
Other Non-Operating Income (Expense), Net \| Other
Derivative Instruments, Gain (Loss) [Line Items]
Total (Gain) Loss Recognized in Income	$ 0.1	$ 0.5

Fair Value Measurements (Schedule of the Carrying Values and Fair Values of Financial Instruments) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Sep. 30, 2021
Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, including current portion and related party, carrying value	$ 7,265.1	$ 7,634.8
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, including current portion and related party, fair value	7,421.1	7,812.2
Forward exchange contracts \| Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets	47.4	49.3
Derivative liabilities	71.8	88.8
Forward exchange contracts \| Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets	47.4	49.3
Derivative liabilities	71.8	88.8
Interest Rate Management Contracts \| Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets	37.7	34.1
Derivative liabilities	56.0	32.7
Interest Rate Management Contracts \| Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets	37.7	34.1
Derivative liabilities	$ 56.0	$ 32.7

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References + Details

Fair Value Measurements (Schedule of Recurring Fair Value Measurements) (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Millions	Dec. 31, 2021	Sep. 30, 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets at Fair Value	$ 85.1	$ 83.4
Total Liabilities at Fair Value	127.8	121.5
Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets at Fair Value	0.0	0.0
Total Liabilities at Fair Value	0.0	0.0
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets at Fair Value	85.1	83.4
Total Liabilities at Fair Value	127.8	121.5
Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets at Fair Value	0.0	0.0
Total Liabilities at Fair Value	0.0	0.0
Forward exchange contracts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets	47.4	49.3
Derivative liabilities	71.8	88.8
Forward exchange contracts \| Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets	0.0	0.0
Derivative liabilities	0.0	0.0
Forward exchange contracts \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets	47.4	49.3
Derivative liabilities	71.8	88.8
Forward exchange contracts \| Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets	0.0	0.0
Derivative liabilities	0.0	0.0
Interest Rate Management Contracts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets	37.7	34.1
Derivative liabilities	56.0	32.7
Interest Rate Management Contracts \| Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets	0.0	0.0
Derivative liabilities	0.0	0.0
Interest Rate Management Contracts \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets	37.7	34.1
Derivative liabilities	56.0	32.7
Interest Rate Management Contracts \| Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets	0.0	0.0
Derivative liabilities	$ 0.0	$ 0.0

Retirement Benefits (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Sep. 30, 2021
Defined Benefit Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Company contributions	$ 9.1	$ 21.2	$ 44.6
Defined Benefit Pension Plan \| Minimum
Defined Benefit Plan Disclosure [Line Items]
Total expected contributions for current fiscal year	40.0
Defined Benefit Pension Plan \| Maximum
Defined Benefit Plan Disclosure [Line Items]
Total expected contributions for current fiscal year	50.0
Other Postretirement Benefits Plan
Defined Benefit Plan Disclosure [Line Items]
Amortization of actuarial gain	$ 0.4	$ 0.4

- Definition

Amount of contribution received by defined benefit plan from employer which increases plan assets.

+ References + Details

Retirement Benefits (Schedule of Net Periodic Benefit Cost) (Details) - Defined Benefit Pension Plan - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
U.S.
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 4.6	$ 5.4
Interest cost	18.4	17.2
Expected return on plan assets	(42.1)	(48.6)
Prior service cost amortization	0.3	0.3
Actuarial loss amortization	16.7	19.7
Settlements	0.9	0.0
Other	0.0	0.0
Net periodic benefit cost	(1.2)	(6.0)
International
Defined Benefit Plan Disclosure [Line Items]
Service cost	5.6	5.7
Interest cost	7.6	6.1
Expected return on plan assets	(17.7)	(20.2)
Prior service cost amortization	0.0	0.0
Actuarial loss amortization	3.9	4.6
Settlements	0.0	0.0
Other	0.8	0.3
Net periodic benefit cost	$ 0.2	$ (3.5)

Commitments and Contingencies (Litigation and Environmental - Narrative) (Details) R$ in Millions	1 Months Ended	3 Months Ended
	Sep. 30, 2010 BRL (R$)	Dec. 31, 2021 USD ($) site	Dec. 31, 2021 BRL (R$) site	Sep. 30, 2021 USD ($)
Alleged Anticompete Litigation
Loss Contingencies [Line Items]
Civil fines imposed	R$ 179.2	$ 32,000,000
Provision for litigation		0
Maximum of loss contingency range subject to interest		$ 32,000,000	R$ 179.2
Environmental
Loss Contingencies [Line Items]
Approximate number of sites on which settlement has not been reached \| site		32	32
Accrual for environmental loss contingencies		$ 75,600,000		$ 76,700,000
Accrual for environmental loss contingencies, maximum payout period		30 years
Environmental \| Minimum
Loss Contingencies [Line Items]
Estimate of possible exposure from environmental loss contingencies		$ 74,000,000
Environmental \| Maximum
Loss Contingencies [Line Items]
Estimate of possible exposure from environmental loss contingencies		$ 88,000,000

Commitments and Contingencies (Pace, Piedmont, Pasadena - Narrative) (Details) - USD ($)	3 Months Ended		12 Months Ended
	Dec. 31, 2021	Mar. 31, 2020	Sep. 30, 2012	Sep. 30, 2008	Sep. 30, 2006
Pace, Florida
Loss Contingencies [Line Items]
Accrual for environmental loss contingencies	$ 39,200,000				$ 42,000,000
Change in estimated exposure	0	$ 19,000,000
Pace, Florida \| Discontinued operations
Loss Contingencies [Line Items]
Pretax environmental expense		$ 19,000,000			$ 42,000,000
Piedmont, South Carolina
Loss Contingencies [Line Items]
Accrual for environmental loss contingencies	9,300,000			$ 24,000,000
Piedmont, South Carolina \| Discontinued operations
Loss Contingencies [Line Items]
Pretax environmental expense				$ 24,000,000
Pasadena, Texas
Loss Contingencies [Line Items]
Accrual for environmental loss contingencies	$ 11,200,000
Total anticipated exposure			$ 13,000,000

Share-Based Compensation (Narrative) (Details)	3 Months Ended
Share-Based Compensation (Narrative) (Details)	Dec. 31, 2021 $ / shares shares
Market-Based Deferred Stock Unit
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of units/shares granted	74,079
Performance period	3 years
Weighted average grant date fair value (in dollars per unit/share) \| $ / shares	$ 427.23
Time-Based Deferred Stock Unit
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of units/shares granted	94,892
Weighted average grant date fair value (in dollars per unit/share) \| $ / shares	$ 285.92
LTIP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future grant	1,300,000

Share-Based Compensation (Compensation Cost Recognized in Income Statement) (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Share-based Payment Arrangement, Additional Disclosure [Abstract]
Before-tax share-based compensation cost	$ 16.8	$ 9.5
Income tax benefit	(4.1)	(2.3)
After-tax share-based compensation cost	$ 12.7	$ 7.2

Share-Based Compensation (Market-Based Deferred Stock Unit Valuation Assumptions) (Details) - Market-Based Deferred Stock Unit	3 Months Ended
	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility	30.50%
Risk-free interest rate	0.80%
Expected dividend yield	2.10%

Accumulated Other Comprehensive Loss (Rollforward) (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	$ 14,088.0	$ 12,443.1
Other comprehensive (loss) income before reclassifications	40.1
Amounts reclassified from AOCL	34.7
Total Other Comprehensive Income	74.8	446.5
Amount attributable to noncontrolling interests	11.2	19.7
Ending balance	14,375.6	13,071.9
Derivatives qualifying as hedges
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(28.3)
Other comprehensive (loss) income before reclassifications	(0.5)
Amounts reclassified from AOCL	18.7
Total Other Comprehensive Income	18.2
Amount attributable to noncontrolling interests	7.4
Ending balance	(17.5)
Foreign currency translation adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(893.8)
Other comprehensive (loss) income before reclassifications	40.6
Amounts reclassified from AOCL	0.0
Total Other Comprehensive Income	40.6
Amount attributable to noncontrolling interests	3.8
Ending balance	(857.0)
Pension and postretirement benefits
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(593.8)
Other comprehensive (loss) income before reclassifications	0.0
Amounts reclassified from AOCL	16.0
Total Other Comprehensive Income	16.0
Amount attributable to noncontrolling interests	0.0
Ending balance	(577.8)
AOCL attributable to Air Products
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(1,515.9)	(2,140.1)
Total Other Comprehensive Income	63.6	426.8
Ending balance	$ (1,452.3)	$ (1,713.3)

Accumulated Other Comprehensive Loss (Reclassification) (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Sales	$ (2,994.2)	$ (2,375.2)
Cost of sales	(2,223.6)	(1,632.4)
Interest expense	(30.5)	(36.7)
Other non-operating income (expense), net	(22.6)	(18.6)
Net Income Attributable to Air Products	(560.4)	(482.0)
Reclassification out of Accumulated Other Comprehensive Income \| (Gain) Loss on Cash Flow Hedges, net of tax
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Sales	0.3	0.1
Cost of sales	(0.1)	0.1
Interest expense	0.9	0.9
Other non-operating income (expense), net	17.6	(2.4)
Net Income Attributable to Air Products	18.7	(1.3)
Reclassification out of Accumulated Other Comprehensive Income \| Pension and Postretirement Benefits, net of tax
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net Income Attributable to Air Products	$ 16.0	$ 18.3

- Definition

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

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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+ Details

Earnings Per Share (Schedule of Earnings Per Share) (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions

3 Months Ended

Dec. 31, 2021

Dec. 31, 2020

Earnings Per Share [Abstract]

Net income from continuing operations

$ 560.4

$ 471.7

Net income from discontinued operations

0.0

10.3

Net Income Attributable to Air Products

$ 560.4

$ 482.0

Weighted average common shares — Basic

221.9

221.5

Employee stock option and other award plans

0.7

1.1

Weighted average common shares — Diluted

222.6

Per Share Data

Basic EPS from continuing operations (in dollars per share)

^[1]

$ 2.53

$ 2.13

Basic EPS from discontinued operations (in dollars per share)

^[1]

0.05

Basic EPS Attributable to Air Products (in dollars per share)

^[1]

2.53

2.18

Diluted EPS from continuing operations (in dollars per share)

^[1]

2.52

2.12

Diluted EPS from discontinued operations (in dollars per share)

^[1]

0.05

Diluted EPS Attributable to Air Products (in dollars per share)

^[1]

$ 2.52

$ 2.17

[1]	*Earnings per share ("EPS") is calculated independently for each component and may not sum to total EPS due to rounding.

Earnings Per Share (Narrative) (Details) - shares shares in Millions	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Earnings Per Share [Abstract]
Antidilutive share-based awards excluded from computation of diluted earnings per share (in shares)	0.0	0.0

Income Taxes (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
Income Taxes (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Effective tax rate (percent)	17.10%	19.30%
Income tax payments, net of refunds	$ 50.3	$ 73.4

Supplemental Information (Narrative) (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended
	Nov. 30, 2021	Dec. 31, 2021	Dec. 31, 2020	Sep. 30, 2021
Related Party Transaction [Line Items]
Trade receivables, net		$ 130.0		$ 90.0
Related party debt, including current portion		370.1		$ 358.4
Debt Instrument [Line Items]
Repayment of debt		400.0	$ 1.1
Noncash ROU asset additions		115.0
Equity affiliate and joint venture partner
Related Party Transaction [Line Items]
Sales to and other income from related parties		$ 80.0	$ 50.0
Senior Notes \| Senior Note Three Percent
Debt Instrument [Line Items]
Interest rate (percent)	3.00%
Repayment of debt	$ 400.0

Business Segment Information (Schedule of Segment Reporting Information) (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Sep. 30, 2021
Segment Reporting Information [Line Items]
Sales	$ 2,994.2	$ 2,375.2
Operating income (loss)	523.0	539.1
Depreciation and amortization	332.3	323.7
Equity affiliates' income	147.8	69.3
Total assets	27,125.3		$ 26,859.2
Operating Segments
Segment Reporting Information [Line Items]
Sales	2,994.2	2,375.2
Operating income (loss)	523.0	539.1
Depreciation and amortization	332.3	323.7
Equity affiliates' income	147.8	69.3
Total assets	27,125.3		26,859.2
Americas \| Operating Segments
Segment Reporting Information [Line Items]
Sales	1,224.1	933.0
Operating income (loss)	267.2	225.8
Depreciation and amortization	155.3	151.8
Equity affiliates' income	34.2	22.3
Total assets	7,381.5		7,092.5
Asia \| Operating Segments
Segment Reporting Information [Line Items]
Sales	780.4	717.5
Operating income (loss)	221.1	214.8
Depreciation and amortization	110.8	107.9
Equity affiliates' income	6.6	8.8
Total assets	7,619.0		7,349.4
Europe \| Operating Segments
Segment Reporting Information [Line Items]
Sales	744.2	543.5
Operating income (loss)	99.2	137.5
Depreciation and amortization	49.8	49.3
Equity affiliates' income	13.9	14.9
Total assets	3,951.7		3,830.3
Middle East and India \| Operating Segments
Segment Reporting Information [Line Items]
Sales	23.7	19.5
Operating income (loss)	4.8	4.0
Depreciation and amortization	6.1	6.1
Equity affiliates' income	92.3	21.2
Total assets	2,482.4		800.6
Corporate and other \| Operating Segments
Segment Reporting Information [Line Items]
Sales	221.8	161.7
Operating income (loss)	(69.3)	(43.0)
Depreciation and amortization	10.3	8.6
Equity affiliates' income	0.8	$ 2.1
Total assets	$ 5,690.7		$ 7,786.4