Goodwill and Intangible Assets, net - Schedule of Intangible Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2025	Jan. 31, 2024
Finite-Lived Intangible Assets [Line Items]
Gross	$ 440	$ 409
Accumulated Amortization	(302)	(227)
Total	138	182
Purchased developed technology
Finite-Lived Intangible Assets [Line Items]
Gross	239	220
Accumulated Amortization	(179)	(134)
Total	$ 60	$ 86
Weighted average useful life	1 year 10 months 24 days	2 years 2 months 12 days
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross	$ 116	$ 116
Accumulated Amortization	(85)	(62)
Total	$ 31	$ 54
Weighted average useful life	1 year 7 months 6 days	2 years 6 months
Capitalized internal-use software costs
Finite-Lived Intangible Assets [Line Items]
Gross	$ 54	$ 48
Accumulated Amortization	(19)	(17)
Total	35	31
Trade name
Finite-Lived Intangible Assets [Line Items]
Gross	21	21
Accumulated Amortization	(16)	(12)
Total	$ 5	$ 9
Weighted average useful life	1 year 3 months 18 days	2 years 3 months 18 days
Other
Finite-Lived Intangible Assets [Line Items]
Gross	$ 10	$ 4
Accumulated Amortization	(3)	(2)
Total	$ 7	$ 2