Other Liabilities (Details) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2015
Sep. 30, 2014
Mar. 31, 2014
Other Liabilities Disclosure [Abstract]      
Asbestos-related liabilities (see Note 19) $ 105 $ 105  
Restructuring (see Note 6) 2 2 3
Non-current deferred income tax liabilities 103 103  
Liabilities for uncertain tax positions 12 14  
Product warranties (see Note 14) 26 24 33
Environmental (see Note 19) 7 7  
Indemnity obligations (see Note 19) 14 17  
Other 32 37  
Other liabilities $ 301 $ 309