Balance Sheet Components - Narrative (Details) - USD ($)	12 Months Ended
	Jan. 31, 2026	Jan. 31, 2025	Jan. 31, 2024
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Amortization of purchased intangibles	$ 53,000,000	$ 49,000,000	$ 42,000,000
Depreciation	43,000,000	43,000,000	47,000,000
Impairment losses	0	0	0
Capitalized software development costs	0	0
Goodwill, impairment losses	$ 0	0	0
Software and Software Development Costs
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Useful life	3 years
Customer Relationships, Trade Names, Patents, and User List
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Amortization of purchased intangibles	$ 150,000,000	$ 134,000,000	$ 89,000,000
Minimum | Customer Relationships, Trade Names, Patents, and User List
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Finite-lived intangible asset, useful life	3 years
Maximum | Customer Relationships, Trade Names, Patents, and User List
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Finite-lived intangible asset, useful life	15 years