Deferred Costs (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jul. 31, 2023 |
Jul. 31, 2022 |
Jul. 31, 2023 |
Jul. 31, 2022 |
Jan. 31, 2023 |
|
| Revenue from Contract with Customer [Abstract] | |||||
| Deferred sales commission | $ 614 | $ 614 | $ 612 | ||
| Amortization of deferred costs | 52 | $ 43 | 101 | $ 82 | |
| Capitalized contract cost, impairment loss | $ 0 | $ 0 | $ 0 | $ 0 | |