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