Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2017		Sep. 30, 2016		Sep. 30, 2015
Operating Activities
Net Income	$ 3,021.2		$ 661.5		$ 1,317.6
Less: Net income attributable to noncontrolling interests of continuing operations	20.8		22.5		32.6
Less: Net income attributable to noncontrolling interests of discontinued operations	0.0		7.9		7.1
Net Income Attributable to Air Products	3,000.4		631.1		1,277.9
(Income) Loss from discontinued operations attributable to Air Products	(1,866.0)	[1]	468.4		(344.6)
Income from continuing operations attributable to Air Products	1,134.4		1,099.5		933.3
Adjustments to reconcile income to cash provided by operating activities:
Depreciation and amortization	865.8		854.6		858.5
Deferred income taxes	(38.0)		61.8		9.4
Loss on extinguishment of debt	0.0		6.9	[2]	16.6
Gain on previously held equity interest	0.0		0.0		(17.9)
Undistributed earnings of unconsolidated affiliates	(60.1)		(51.1)		(101.8)
Gain on sale of assets and investments	(24.3)		(7.3)		(29.7)
Share-based compensation	39.9		31.0		39.5
Noncurrent capital lease receivables	92.2		85.5		(10.1)
Goodwill and intangible asset impairment charge	162.1	[3]	0.0		0.0
Equity method investment impairment charge	79.5		0.0		0.0
Write-down of long-lived assets associated with restructuring	69.2		0.0		40.2
Other adjustments	165.4		156.7		53.0
Working capital changes that provided (used) cash, excluding effects of acquisitions and divestitures:
Trade receivables	(73.6)		(44.8)		(40.7)
Inventories	6.4		32.2		38.0
Contracts in progress, less progress billings	(19.3)		28.2		16.9
Other receivables	124.7		(6.7)		48.9
Payables and accrued liabilities	163.8		60.1		134.9
Other working capital	(154.0)		(47.8)		58.0
Cash Provided by Operating Activities	2,534.1		2,258.8		2,047.0
Investing Activities
Additions to plant and equipment	(1,039.7)		(907.7)		(1,162.4)
Acquisitions, less cash acquired	(8.2)		0.0		(34.5)
Investment in and advances to unconsolidated affiliates	(8.1)		0.0		(4.3)
Proceeds from sale of assets and investments	42.5		44.6		55.3
Purchases of investments	(2,692.6)		0.0		0.0
Proceeds from investments	2,290.7		0.0		0.0
Other investing activities	(2.3)		(1.7)		(0.8)
Cash Used for Investing Activities	(1,417.7)		(864.8)		(1,146.7)
Financing Activities
Long-term debt proceeds	2.4		386.9		340.3
Payments on long-term debt	(483.9)		(480.4)		(699.4)
Net (decrease) increase in commercial paper and short-term borrowings	(798.6)		(144.2)		285.2
Dividends paid to shareholders	(787.9)		(721.2)		(677.5)
Proceeds from stock option exercises	68.4		141.3		121.3
Payment for subsidiary shares to noncontrolling interests	0.0		0.0		(278.4)
Other financing activities	(41.3)		(42.6)		(51.9)
Cash Used for Financing Activities	(2,040.9)		(860.2)		(960.4)
Discontinued Operations
Cash (used for) provided by operating activities	(966.2)		401.9		422.7
Cash provided by (used for) investing activities	3,750.6		(204.2)		(453.0)
Cash provided by (used for) financing activities	69.5		555.9		(16.9)
Cash (Used for) Provided by Discontinued Operations	2,853.9		753.6		(47.2)
Effect of Exchange Rate Changes on Cash	13.4		7.5		(22.9)
Increase (Decrease) in cash and cash items	1,942.8		1,294.9		(130.2)
Cash and Cash items – Beginning of Year	1,330.8		206.4		336.6
Cash and Cash Items – End of Period	3,273.6		1,330.8		206.4
Cash and Cash Items – End of Period			1,501.3
Less: Cash and Cash Items – Discontinued Operations	0.0		208.1		23.3
Cash and Cash Items – Continuing Operations	$ 3,273.6		$ 1,293.2		$ 183.1

[1] Includes the after-tax gain on the sale of PMD. For additional information, see Note 3, Discontinued Operations.

[2] For additional information, see Note 15, Debt.

[3] For additional information, see Note 10, Goodwill, and Note 11, Intangible Assets.