Income Taxes (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Sep. 26, 2014	Sep. 27, 2013	Sep. 28, 2012
Current:
Federal	$ 10	$ 14	$ (4)
State	18	8	6
Non U.S.	95	81	147
Current income tax provision	123	103	149
Deferred:
Federal	(79)	(12)	(10)
State	(24)	5	(2)
Non U.S.	4	12	183
Deferred income tax provision	(99)	5	171
Total income tax provision	24	108	320
Non-U.S. income from continuing operations before income taxes	$ 1,100	$ 844	$ 87