Business and Summary of Significant Accounting Policies - Intangible Assets, Net (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2025	Jan. 31, 2024	Jan. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Amortization of purchased intangibles	$ 49	$ 42	$ 40
Weighted average useful life	7 years 2 months 12 days
Customer Relationships, Trade Names, Patents, and User List
Finite-Lived Intangible Assets [Line Items]
Amortization of purchased intangibles	$ 134	$ 89	$ 98
Minimum | Customer Relationships, Trade Names, Patents, and User List
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	3 years
Maximum | Customer Relationships, Trade Names, Patents, and User List
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	15 years