Stock-Based Compensation - Narrative (Details) shares in Millions, $ in Billions	12 Months Ended
	Jan. 25, 2026 USD ($) period shares	Jan. 26, 2025 USD ($) shares	Jan. 28, 2024 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unearned stock-based compensation expense | $	$ 14.8
Number of shares may be issued under the Restated 2007 Plan (in shares)	192
Number of shares available for grant (in shares)		1,400
Employee stock purchase plan, offering period duration	24 months
Employee stock purchase plan, number of purchase periods in offering period | period	4
Employee stock purchase plan, purchase period duration	6 months
RSUs, PSUs and Market-based PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Estimated weighted average amortization period	2 years 3 months 18 days
Number of shares available for grant (in shares)	1,300
Total fair value of units as of respective vesting dates | $	$ 22.2	$ 15.1	$ 8.2
Performance Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	4 years
Market-based PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Estimated weighted average amortization period	10 months 24 days
Maximum employee subscription rate (as percent)	25.00%
Purchase price of ESPP (as percent)	85.00%
Shares reserved for future issuance (in shares)	2,200