Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	9 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Operating Activities
Net Income	$ 1,051.0	$ 922.4
Less: Net income attributable to noncontrolling interests	22.4	23.0
Net Income Attributable to Air Products	1,028.6	899.4
Income from discontinued operations	(166.5)	(69.3)
Income from continuing operations attributable to Air Products	862.1	830.1
Adjustments to reconcile income to cash provided by operating activities:
Depreciation and amortization	620.5	627.6
Deferred income taxes	113.1	75.4
Benefit from Spanish tax ruling	(58.3)	0
Gain on previously held equity interest	(85.9)	0
Undistributed earnings of unconsolidated affiliates	(42.8)	(18.4)
Gain on sale of assets and investments	(5.8)	(7.7)
Share-based compensation	36.2	33.1
Noncurrent capital lease receivables	(204.1)	(155.7)
Net loss on Airgas transaction		48.5
Payment of acquisition-related costs		(156.2)
Other adjustments	48.6	66.3
Working capital changes that provided (used) cash, excluding effects of acquisitions and divestitures:
Trade receivables	(71.9)	(79.7)
Inventories	(18.8)	(48.2)
Contracts in progress, less progress billings	(16.7)	20.9
Other receivables	8.6	(5.8)
Payables and accrued liabilities	30.0	(161.4)
Other working capital	29.8	28.3
Cash Provided by Operating Activities	1,244.6	1,097.1
Investing Activities
Additions to plant and equipment	(1,166.5)	(933.5)
Acquisitions, less cash acquired	(173.8)	(9.9)
Investment in and advances to unconsolidated affiliates	(175.4)	(46.0)
Proceeds from sale of Airgas stock		94.7
Proceeds from sale of assets and investments	13.5	62.3
Change in restricted cash	60.9	13.0
Cash Used for Investing Activities	(1,441.3)	(819.4)
Financing Activities
Long-term debt proceeds	409.6	59.2
Payments on long-term debt	(477.6)	(182.4)
Net (decrease) increase in commercial paper and short-term borrowings	(171.5)	410.6
Dividends paid to shareholders	(379.4)	(333.0)
Purchase of treasury shares	(53.1)	(350.0)
Proceeds from stock option exercises	88.7	124.4
Excess tax benefit from share-based compensation	20.2	40.3
Payment for subsidiary shares from noncontrolling interests	(58.4)	0
Other financing activities	(16.1)	(2.8)
Cash Used for Financing Activities	(637.6)	(233.7)
Discontinued Operations
Cash provided by operating activities	32.1	31.6
Cash provided by (used for) investing activities	766.4	(31.8)
Cash provided by financing activities	0	1.3
Cash Provided by Discontinued Operations	798.5	1.1
Effect of Exchange Rate Changes on Cash	(25.5)	10.7
(Decrease) Increase in Cash and Cash Items	(61.3)	55.8
Cash and Cash Items - Beginning of Year	422.5	374.3
Cash and Cash Items - End of Period	361.2	430.1
Less: Cash and Cash Items - Discontinued Operations	0	1.9
Cash and Cash Items - Continuing Operations	$ 361.2	$ 428.2