Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Operating Activities
Net Income	$ 963.8	$ 979.3
Less: Net income attributable to noncontrolling interest of continuing operations	8.7	25.9
Net income attributable to Air Products	955.1	953.4
(Income) Loss from discontinued operations	(10.3)	14.3
Income from continuing operations attributable to Air Products	944.8	967.7
Adjustments to reconcile income to cash provided by operating activities:
Depreciation and amortization	653.0	583.9
Deferred income taxes	76.1	55.0
Facility closure	23.2	0.0
Undistributed earnings of equity method investments	(58.7)	(101.6)
Gain on sale of assets and investments	(26.2)	(40.5)
Share-based compensation	22.4	26.9
Noncurrent lease receivables	43.4	47.1
Other adjustments	(6.5)	54.0
Working capital changes that provided (used) cash, excluding effects of acquisitions:
Trade receivables	(74.8)	(111.9)
Inventories	(25.4)	(16.5)
Other receivables	15.7	(0.7)
Payables and accrued liabilities	135.7	(111.8)
Other working capital	(142.4)	(113.1)
Cash Provided by Operating Activities	1,580.3	1,238.5
Investing Activities
Additions to plant and equipment, including long-term deposits	(1,227.8)	(930.6)
Investment in and advances to unconsolidated affiliates	(69.8)	(22.7)
Proceeds from sale of assets and investments	14.8	68.0
Purchases of investments	(569.0)	0.0
Proceeds from investments	1,265.5	177.0
Other investing activities	3.1	1.9
Cash Used for Investing Activities	(583.2)	(706.4)
Financing Activities
Long-term debt proceeds	92.8	0.0
Payments on long-term debt	(15.9)	(3.4)
Net increase (decrease) in commercial paper and short-term borrowings	33.6	(33.3)
Dividends paid to shareholders	(592.7)	(511.7)
Proceeds from stock option exercises	4.7	20.2
Other financing activities	(25.7)	(9.6)
Cash Used for Financing Activities	(503.2)	(537.8)
Discontinued Operations
Cash provided by operating activities	6.7	0.0
Cash provided by investing activities	0.0	0.0
Cash provided by financing activities	0.0	0.0
Cash Provided by Discontinued Operations	6.7	0.0
Effect of Exchange Rate Changes on Cash	32.7	(22.9)
Increase (Decrease) in cash and cash items	533.3	(28.6)
Cash and Cash items – Beginning of Year	5,253.0	2,248.7
Cash and Cash Items – End of Period	$ 5,786.3	$ 2,220.1