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Cash Equivalents and Investments (Tables) | 3 Months Ended
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Apr. 30, 2026
Investments, Debt and Equity Securities [Abstract] |
Schedule of Amortized Costs, Unrealized Gains and Losses and Estimated Fair Value of Cash Equivalents and Short-term Investments | The following tables present the estimated fair value of cash equivalents and short-term investments:
| As of April 30, 2026 |  | As of January 31, 2026
| (dollars in millions)
Cash equivalents: |  |  |
Money market funds (Level 1) | $ | 505 |  |  | $ | 654 |
Certificates of deposit (Level 2) | 19 |  |  | — |
U.S. government securities (Level 2) | — |  |  | 16 |
Corporate debt securities (Level 2) | 10 |  |  | — |
Total cash equivalents | 534 |  |  | 670 |
Short-term investments (Available-for-sale): |  |  |
U.S. government securities (Level 2) | 1,626 |  |  | 1,459 |
Corporate debt securities (Level 2) | 155 |  |  | 180 |
Certificates of deposit (Level 2) | 46 |  |  | 56 |
Total short-term investments | 1,827 |  |  | 1,695 |
Total | $ | 2,361 |  |  | $ | 2,365 |
Schedule of Contractual Maturities of Short-term Investments | The following table presents the contractual maturities of the Company’s short-term investments:
| As of April 30, 2026 |  |
| Estimated Fair Value |  |  |  |
| (dollars in millions) |  |  |  |
Due within one year | $ | 1,517 |  |  |  |  |
Due between one to five years | 310 |  |  |  |  |
Total | $ | 1,827 |  |  |  |  |

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- Definition Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments. + References No definition available. + Details
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