Cash, Cash Equivalents and Investments - Gain (Loss) on Equity Investments (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 26, 2025	Jan. 28, 2024
Publicly traded equity securities
Unrealized gain	$ 3	$ 287
Unrealized loss	(111)	(2)
Realized gain on sales and dividends	3	0
Realized loss on sales or impairment	0	(1)
Equity investments in privately held companies
Unrealized gain	7	1
Unrealized loss	(5)	(6)
Realized gain on sales and dividends	6	2
Total gain (loss) on equity investments, net	$ (97)	$ 281