Accounting Standards and Significant Accounting Policies - Narrative (Detail) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Jan. 31, 2026 |
Jan. 31, 2025 |
Jan. 31, 2024 |
|
| Accounting Policies [Line Items] | |||
| Amortization period, deferred commissions (years) | 5 years | ||
| Advertising expense | $ 181 | $ 204 | $ 194 |
| Minimum | Subscription services | |||
| Accounting Policies [Line Items] | |||
| Subscriptions contract period, years | 3 years | ||