Consolidated Income Statements (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Consolidated Income Statements [Abstract]
Sales	$ 2,545.5	$ 2,562.4
Cost of sales	1,865.9	1,900.1
Selling and administrative	280.9	268.2
Research and development	33.5	33.3
Other income (expense), net	20.4	11.6
Operating Income	385.6	372.4
Equity affiliates' income	38.2	41.4
Interest expense	33.3	35.8
Income from Continuing Operations before Taxes	390.5	378.0
Income tax provision	94.5	92.2
Income from Continuing Operations	296.0	285.8
Income from Discontinued Operations, net of tax	3.1	1.4
Net Income	299.1	287.2
Less: Net Income Attributable to Noncontrolling Interests	8.9	8.9
Net Income Attributable to Air Products	290.2	278.3
Net Income Attributable to Air Products
Income from continuing operations	287.1	276.9
Income from discontinued operations	3.1	1.4
Net Income Attributable to Air Products	$ 290.2	$ 278.3
Basic Earnings Per Common Share Attributable to Air Products
Income from continuing operations	$ 1.36	$ 1.32
Income from discontinued operations	$ 0.01	$ 0.01
Net Income Attributable to Air Products	$ 1.37	$ 1.33
Diluted Earnings Per Common Share Attributable to Air Products
Income from continuing operations	$ 1.34	$ 1.30
Income from discontinued operations	$ 0.01	$ 0.01
Net Income Attributable to Air Products	$ 1.35	$ 1.31
Weighted Average Common Shares - Basic (in millions)	211.8	210.0
Weighted Average Common Shares - Diluted (in millions)	214.3	212.6
Dividends Declared Per Common Share - Cash	$ 0.71	$ 0.64