Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2020
Operating Activities
Net Income	$ 2,266.5	$ 2,114.9	$ 1,931.1
Less: Net income attributable to noncontrolling interests of continuing operations	10.4	15.8	44.4
Net Income Attributable to Air Products	2,256.1	2,099.1	1,886.7
Net (income) loss from discontinued operations	(12.6)	(70.3)	14.3
Net income from continuing operations attributable to Air Products	2,243.5	2,028.8	1,901.0
Adjustments to reconcile income to cash provided by operating activities:
Depreciation and amortization	1,338.2	1,321.3	1,185.0
Deferred income taxes	32.3	94.0	165.0
Facility closure	0.0	23.2	0.0
Business and asset actions	73.7	0.0	0.0
Undistributed earnings of equity method investments	(214.7)	(138.2)	(161.9)
Gain on sale of assets and investments	(24.1)	(37.2)	(45.8)
Share-based compensation	48.4	44.5	53.5
Noncurrent lease receivables	94.0	98.8	91.6
Other adjustments	(304.9)	(116.7)	116.4
Working capital changes that provided (used) cash, excluding effects of acquisitions:
Trade receivables	(475.2)	(130.5)	43.2
Inventories	(94.3)	(47.2)	(5.2)
Other receivables	(1.8)	75.5	84.4
Payables and accrued liabilities	532.5	187.9	(31.9)
Other working capital	(77.0)	(69.0)	(130.6)
Cash Provided by Operating Activities	3,170.6	3,335.2	3,264.7
Investing Activities
Additions to plant and equipment, including long-term deposits	(2,926.5)	(2,464.2)	(2,509.0)
Acquisitions, less cash acquired	(65.1)	(10.5)	(183.3)
Investment in and advances to unconsolidated affiliates	(1,658.4)	(76.0)	(24.4)
Proceeds from sale of assets and investments	46.2	37.5	80.3
Purchases of investments	(1,637.8)	(2,100.7)	(2,865.5)
Proceeds from investments	2,377.4	1,875.2	1,938.0
Other investing activities	7.0	5.8	3.9
Cash Used for Investing Activities	(3,857.2)	(2,732.9)	(3,560.0)
Financing Activities
Long-term debt proceeds	766.2	178.9	4,895.8
Payments on long-term debt	(400.0)	(462.9)	(406.6)
Net increase (decrease) in commercial paper and short-term borrowings	17.9	1.0	(54.9)
Dividends paid to shareholders	(1,383.3)	(1,256.7)	(1,103.6)
Proceeds from stock option exercises	19.3	10.6	34.1
Investments by noncontrolling interests	21.0	136.6	17.1
Other financing activities	(41.7)	(28.4)	(97.2)
Cash Provided by (Used for) Financing Activities	(1,000.6)	(1,420.9)	3,284.7
Discontinued Operations
Cash provided by operating activities	59.6	6.7	0.0
Cash provided by investing activities	0.0	0.0	0.0
Cash provided by financing activities	0.0	0.0	0.0
Cash Provided by Discontinued Operations	59.6	6.7	0.0
Effect of Exchange Rate Changes on Cash	(130.3)	27.8	14.9
Increase (Decrease) in cash and cash items	(1,757.9)	(784.1)	3,004.3
Cash and Cash items – Beginning of Year	4,468.9	5,253.0	2,248.7
Cash and Cash Items – End of Period	$ 2,711.0	$ 4,468.9	$ 5,253.0