Balance Sheet Components - Revenue Remaining Performance Obligation (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 25, 2026	Jan. 26, 2025
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Deferred revenue	$ 974	$ 729
Remaining performance obligation	2,300
Remaining performance obligations from deferred revenue	1,900
Remaining performance obligations not yet billed nor recognized as revenue	$ 390
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-27
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation (as percent)	42.00%
Expected performance period	12 months