CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 26, 2020	Jul. 28, 2019	Jul. 26, 2020	Jul. 28, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 622	$ 552	$ 1,539	$ 947
Available-for-sale securities:
Net change in unrealized gain	3	1	3	9
Reclassification adjustments for net realized gain (loss) included in net income	(2)	0	(2)	0
Net change in unrealized gain	1	1	1	9
Cash flow hedges:
Net unrealized gain	16	0	6	4
Reclassification adjustments for net realized gain (loss) included in net income	(3)	0	(4)	(2)
Net change in unrealized gain	13	0	2	2
Other comprehensive income, net of tax	14	1	3	11
Total comprehensive income	$ 636	$ 553	$ 1,542	$ 958