Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	12 Months Ended
	Sep. 28, 2014	Sep. 29, 2013	Sep. 30, 2012
Statement of Comprehensive Income [Abstract]
Net income	$ 579	$ 551	$ 466
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	(8)	(4)	5
Other comprehensive income (loss), net of tax	(8)	(4)	5
Comprehensive income	$ 571	$ 547	$ 471