Leases - Narrative (Details) - USD ($)	12 Months Ended
	Jan. 31, 2023	Jan. 31, 2022	Jan. 31, 2021
Lessee, Lease, Description [Line Items]
Lease-related asset impairments	$ 29,000,000	$ 75,000,000	$ 0
Weighted average remaining lease term	6 years 6 months	6 years 10 months 24 days
Weighted average discount rate	2.60%	2.46%
Public income remaining lease term	9 years 1 month 6 days
Sublease income	$ 5,000,000	$ 0	$ 0
Sublease income payments	86,000,000
Sublease income payments, expect to receive, remaining fiscal 2024 through fiscal 2028	47,000,000
Sublease income payments, expect to receive, thereafter	39,000,000
operating lease minimum lease payments	$ 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	67 years
Lease renewal term	10 years
Optional termination period	7 years