Cash, Cash Equivalents and Investments - Gain (Loss) on Equity Investments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2022	Aug. 01, 2021	Jul. 31, 2022	Aug. 01, 2021
Gain (Loss) on Securities [Line Items]
Total gain (loss) on equity investments, net	$ (17)	$ 19	$ 16	$ 47
Publicly traded equity securities
Gain (Loss) on Securities [Line Items]
Unrealized gain	3	1	21	12
Unrealized loss	(23)	(4)	(33)	(6)
Realized gain on sales	3	0	5	0
Equity investments in privately-held companies
Gain (Loss) on Securities [Line Items]
Unrealized gain	7	19	32	50
Unrealized loss	(5)	(3)	(5)	(11)
Realized gain on sales	0	6	2	9
Realized loss on sales or impairment	$ (2)	$ 0	$ (6)	$ (7)