Leases (Lease Cost) (Details) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Apr. 30, 2021 |
May 01, 2020 |
|
| Leases [Abstract] | ||
| Operating lease expense | $ 49 | $ 46 |
| Finance lease expense: | ||
| Amortization of right-of-use (“ROU”) assets | 2 | 2 |
| Short-term lease expense | 0 | 1 |
| Variable lease expense | 7 | 8 |
| Total lease expense | $ 58 | $ 57 |