Leases - Narrative (Details) - USD ($)	12 Months Ended
	Jan. 31, 2026	Jan. 31, 2025	Jan. 31, 2024
Lessee, Lease, Description [Line Items]
Lease-related asset impairments	$ 12,000,000	$ 0	$ 9,000,000
Weighted average remaining lease term	5 years 3 months 18 days	5 years 9 months 18 days
Weighted average discount rate	3.42%	2.90%
Sublease income payments	$ 55,000,000
Sublease income payments, expect to receive, for fiscal 2026 through fiscal 2029	45,000,000
Sublease income payments, expect to receive, thereafter	10,000,000
Operating Lease, Lease Not yet Commenced
Lessee, Lease, Description [Line Items]
Aggregate purchase commitments	$ 0
Minimum
Lessee, Lease, Description [Line Items]
Operating lease remaining lease term	1 year
Lease renewal term	1 year
Optional termination period	1 year
Maximum
Lessee, Lease, Description [Line Items]
Operating lease remaining lease term	64 years
Lease renewal term	5 years
Optional termination period	4 years