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Component: (Network and Table)
Network
402106 - Disclosure - Income Taxes (Reconciliation Of Unrecognized Tax Benefits) (Details)
(http://www.airproducts.com/role/DisclosureIncomeTaxesReconciliationOfUnrecognizedTaxBenefitsDetails)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000002969 (http://www.sec.gov/CIK)
Income Tax Disclosure [Abstract]Period [Axis]
2011-10-01 - 2012-09-30
2010-10-01 - 2011-09-30
2009-10-01 - 2010-09-30
Income Tax Disclosure [Abstract]
 
 
 
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
 
 
 
Balance at beginning of year
126,400,000  
197,800,000  
163,100,000  
Additions for tax positions of the current year
44,500,000  
16,300,000  
31,800,000  
Additions for tax positions of prior years
2,300,000  
5,700,000  
12,900,000  
Reductions for tax positions of prior years
(46,900,000) 
(72,400,000) 
(1,000,000) 
Settlements
(11,000,000) 
(15,600,000) 
0  
Statute of limitations expiration
(3,700,000) 
(4,800,000) 
(6,100,000) 
Foreign currency translation
(800,000) 
(600,000) 
(2,900,000) 
Balance at End of Year
110,800,000  
 
126,400,000  
 
197,800,000