Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	12 Months Ended
	Oct. 26, 2014	Oct. 27, 2013	Oct. 28, 2012
Statement of Comprehensive Income [Abstract]
Net income	$ 1,072	$ 256	$ 109
Other comprehensive income (loss), net of tax:
Change in unrealized net gain on investments	(1)	9	(1)
Change in unrealized net gain on derivative investments	(2)	1	1
Change in defined and postretirement benefit plans	(33)	18	(65)
Change in cumulative translation adjustments	(2)	(5)	(2)
Other comprehensive income (loss), net of tax	(38)	23	(67)
Comprehensive income	$ 1,034	$ 279	$ 42