Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2017
Operating Activities
Net Income	$ 1,809.4	$ 1,532.9	$ 3,021.2
Less: Net income attributable to noncontrolling interests of continuing operations	49.4	35.1	20.8
Net Income Attributable to Air Products	1,760.0	1,497.8	3,000.4
Income from discontinued operations	0.0	(42.2)	(1,866.0)
Income from continuing operations attributable to Air Products	1,760.0	1,455.6	1,134.4
Adjustments to reconcile income to cash provided by operating activities:
Depreciation and amortization	1,082.8	970.7	865.8
Deferred income taxes	57.6	(55.4)	(38.0)
Tax reform repatriation	49.4	240.6	0.0
Facility closure	29.0	0.0	0.0
Undistributed earnings of unconsolidated affiliates	(75.8)	(59.8)	(65.8)
Gain on sale of assets and investments	(24.2)	(6.9)	(24.3)
Share-based compensation	41.2	38.8	39.9
Noncurrent capital lease receivables	94.6	97.4	92.2
Goodwill and intangible asset impairment charge	0.0	0.0	162.1
Equity method investment impairment charge	0.0	0.0	79.5
Write-down of long-lived assets associated with cost reduction actions	0.0	0.0	69.2
Other adjustments	(19.4)	131.6	165.4
Working capital changes that provided (used) cash, excluding effects of acquisitions:
Trade receivables	(69.0)	(42.8)	(73.6)
Inventories	(3.0)	(64.2)	6.4
Other receivables	79.8	128.3	105.4
Payables and accrued liabilities	(41.8)	(277.7)	163.8
Other working capital	8.7	(9.0)	(154.0)
Cash Provided by Operating Activities	2,969.9	2,547.2	2,528.4
Investing Activities
Additions to plant and equipment	(1,989.7)	(1,568.4)	(1,039.7)
Acquisitions, less cash acquired	(123.2)	(345.4)	(8.2)
Investment in and advances to unconsolidated affiliates	(15.7)	0.0	(8.1)
Proceeds from sale of assets and investments	11.1	48.8	42.5
Purchases of investments	(172.1)	(530.3)	(2,692.6)
Proceeds from investments	190.5	748.2	2,290.7
Other investing activities	(14.3)	5.5	3.4
Cash Used for Investing Activities	(2,113.4)	(1,641.6)	(1,412.0)
Financing Activities
Long-term debt proceeds	0.0	0.5	2.4
Payments on long-term debt	(428.6)	(418.7)	(483.9)
Net increase (decrease) in commercial paper and short-term borrowings	3.9	(78.5)	(798.6)
Dividends paid to shareholders	(994.0)	(897.8)	(787.9)
Proceeds from stock option exercises	68.1	76.2	68.4
Other financing activities	(19.9)	(41.5)	(41.3)
Cash Used for Financing Activities	(1,370.5)	(1,359.8)	(2,040.9)
Discontinued Operations
Cash used for operating activities	0.0	(12.8)	(966.2)
Cash provided by investing activities	0.0	18.6	3,750.6
Cash provided by financing activities	0.0	0.0	69.5
Cash Provided by Discontinued Operations	0.0	5.8	2,853.9
Effect of Exchange Rate Changes on Cash	(28.6)	(33.9)	13.4
Increase (Decrease) in cash and cash items	(542.6)	(482.3)	1,942.8
Cash and Cash items – Beginning of Year	2,791.3	3,273.6	1,330.8
Cash and Cash Items – End of Period	$ 2,248.7	$ 2,791.3	$ 3,273.6