Income Taxes - Schedule of Unrecognized Tax Benefits Reconciliation (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2025	Jan. 31, 2024	Jan. 31, 2023
Unrecognized Tax Benefits [Roll Forward]
Gross unrecognized tax benefits at the beginning of the fiscal year	$ 261	$ 238	$ 217
Increases for tax positions of prior years	31	23	9
Decreases for tax positions of prior years	0	(11)	(3)
Increases for tax positions related to the current year	29	13	21
Decreases relating to settlements with taxing authorities	(9)	0	(5)
Reductions as a result of lapse of the statute of limitations	0	(2)	(1)
Gross unrecognized tax benefits at the end of the fiscal year	$ 312	$ 261	238
Increase of unrecognized tax benefits related to transfer pricing matters			$ 15