Cash, Cash Equivalents, Restricted Cash and Short-Term Investments (Restricted Cash) (Details) - USD ($) $ in Millions |
Apr. 30, 2021 |
Jan. 29, 2021 |
May 01, 2020 |
Jan. 31, 2020 |
|---|---|---|---|---|
| Investments, Debt and Equity Securities [Abstract] | ||||
| Cash and cash equivalents | $ 5,594 | $ 4,692 | ||
| Restricted cash within other current assets | 58 | 56 | ||
| Restricted cash within other assets | 15 | 22 | ||
| Total cash, cash equivalents and restricted cash | $ 5,667 | $ 4,770 | $ 6,071 | $ 3,031 |