Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 25, 2020	Oct. 27, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 5,888	$ 3,619	$ 2,706
Other comprehensive income (loss), net of tax:
Change in unrealized gain (loss) on available-for-sale investments	(21)	9	21
Change in unrealized net loss on derivative instruments	30	(117)
Change in unrealized net loss on derivative instruments			(7)
Change in defined and postretirement benefit plans	30	(11)	(51)
Change in cumulative translation adjustments	0	0	(1)
Other comprehensive income (loss), net of tax	39	(119)	(38)
Comprehensive income	$ 5,927	$ 3,500	$ 2,668