Other Liabilities (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Sep. 30, 2013	Mar. 31, 2013
Other Liabilities Disclosure [Abstract]
Asbestos-related liabilities (see Note 19)	$ 96	$ 96
Restructuring (see Note 6)	3	3	3
Non-current deferred income tax liabilities	102	100
Liabilities for uncertain tax positions	11	17
Product warranties (see Note 14)	33	37	29
Environmental	10	11
Indemnity obligations	20	26
Other	41	45
Other liabilities	$ 316	$ 335