Revenue, Unearned Revenue and Remaining Performance Obligations (Narrative) (Details) - USD ($) $ in Millions |
3 Months Ended | ||
|---|---|---|---|
Apr. 30, 2021 |
May 01, 2020 |
Jan. 29, 2021 |
|
| Revenue from Contract with Customer [Abstract] | |||
| Contract assets | $ 40 | $ 43 | |
| Customer deposits included in accrued expenses and other | 283 | 294 | |
| Customer deposits included in other liabilities | 155 | 163 | |
| Deferred commissions, current | 20 | 31 | |
| Deferred commissions, non-current | 1,100 | $ 1,100 | |
| Amortization of deferred commissions | $ 125 | $ 100 | |
| Remaining weighted average contractual duration | 2 years | ||
| Current period billings | $ 1,900 | ||
| Revenue recognized from amounts previously classified as unearned revenue | $ 2,000 | $ 1,800 | |