Other Long-Term Liabilities (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014		Sep. 30, 2013
Other Liabilities Disclosure [Abstract]
Accrued income Taxes	$ 741	[1]	$ 453	[1]
Employee benefits	87		86
Other	33		63
Total	$ 861		$ 602

[1] e increase in non-current accrued income taxes is due to an increase in liabilities for uncertain tax positions.