Net Income Per Share - Shares Excluded from Diluted Earnings Per Share (Details) - shares shares in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jul. 31, 2026 |
Jul. 31, 2025 |
Jul. 31, 2026 |
Jul. 31, 2025 |
|
| Employee stock awards | ||||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||||
| Anti-dilutive securities excluded (in shares) | 40 | 9 | 35 | 5 |
| Unsettled component of ASR Agreements | ||||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||||
| Anti-dilutive securities excluded (in shares) | 42 | 0 | 39 | 0 |