Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Oct. 25, 2020	Oct. 27, 2019	Oct. 28, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 3,619	$ 2,706	$ 3,038
Other comprehensive income (loss), net of tax:
Change in unrealized gain (loss) on available-for-sale investments	9	21	(51)
Change in unrealized net loss on derivative instruments	(117)
Change in unrealized net loss on derivative instruments		(7)	4
Change in defined and postretirement benefit plans	(11)	(51)	(17)
Change in cumulative translation adjustments	0	(1)	0
Other comprehensive loss, net of tax	(119)	(38)	(64)
Comprehensive income	$ 3,500	$ 2,668	$ 2,974