Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	6 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Operating Activities
Net Income	$ 634.4	$ 590.6
Less: Net income attributable to noncontrolling interests	19.8	16.9
Net Income Attributable to Air Products	614.6	573.7
(Income) loss from discontinued operations	0	(3.1)
Income from continuing operations attributable to Air Products	614.6	570.6
Adjustments to reconcile income to cash provided by operating activities:
Depreciation and amortization	468.8	463.3
Deferred income taxes	53.5	36.4
Gain on previously held equity interest	(17.9)	0
Undistributed earnings of unconsolidated affiliates	(58.0)	(19.2)
Share-based compensation	24.8	23.4
Noncurrent capital lease receivables	(8.7)	1.1
Other adjustments	(58.6)	75.0
Working capital changes that provided (used) cash, excluding effects of acquisitions and divestitures:
Trade receivables	23.6	(82.0)
Inventories	(14.0)	33.6
Contracts in progress, less progress billings	(16.2)	17.6
Other receivables	(75.2)	(3.7)
Payables and accrued liabilities	71.8	(130.0)
Other working capital	(41.3)	38.6
Cash Provided by Operating Activities	967.2	1,024.7
Investing Activities
Additions to plant and equipment	(817.6)	(802.2)
Acquisitions, less cash acquired	(34.5)	0
Proceeds from sale of assets and investments	10.8	11.2
Other investing activities	1.5	(0.4)
Cash Used for Investing Activities	(839.8)	(791.4)
Financing Activities
Long-term debt proceeds	337.3	39.2
Payments on long-term debt	(384.6)	(491.2)
Net increase (decrease) in commercial paper and short-term borrowings	54.3	370.9
Dividends paid to shareholders	(329.4)	(300.2)
Proceeds from stock option exercises	77.2	57.7
Excess tax benefit from share-based compensation	22.7	12.6
Other financing activities	(34.1)	(26.7)
Cash Provided By (Used for) Financing Activities	(256.6)	(337.7)
Discontinued Operations
Cash provided by operating activities	0	0.7
Cash provided by (used for) investing activities	0	9.8
Cash provided by (used for) financing activities	0	0
Cash Provided by (Used for) Discontinued Operations	0	10.5
Effect of Exchange Rate Changes on Cash	(11.7)	0.4
Increase (Decrease) in Cash and Cash Items	(140.9)	(93.5)
Cash and Cash Items - Beginning of Year	336.6	450.4
Cash and Cash Items - End of Period	195.7	356.9
Less: Cash and Cash Items - Discontinued Operations	0	0
Cash and Cash Items - Continuing Operations	195.7	356.9
Supplemental Cash Flow Information
Cash paid for taxes (net of cash refunds)	$ 155.8	$ 64.5