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Fair Value Measurements (Tables) | 3 Months Ended
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Mar. 31, 2026
Fair Value Disclosures [Abstract] |
Summary of Assets and Liabilities Measured at Fair Value on Recurring Basis | The following tables summarize the types of assets and liabilities measured at fair value on a recurring basis by level within the fair value hierarchy (in millions):
Fair value measurement as of March 31, 2026 |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
Assets |  |  |  |  |  |  |  |
Money market funds |  | $ | 171 |  |  | $ | — |  |  | $ | — |  |  | $ | 171 |
U.S. treasury securities |  | — |  |  | 305 |  |  | — |  |  | 305 |
Corporate securities and commercial paper |  | — |  |  | 394 |  |  | — |  |  | 394 |
Certificate of deposit |  | — |  |  | 6 |  |  | — |  |  | 6 |
Total assets measured at fair value |  | $ | 171 |  |  | $ | 705 |  |  | $ | — |  |  | $ | 876 |
Fair value measurement as of December 31, 2025 |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
Assets |  |  |  |  |  |  |  |
Money market funds |  | $ | 155 |  |  | $ | — |  |  | $ | — |  |  | $ | 155 |
U.S. treasury securities |  | — |  |  | 359 |  |  | — |  |  | 359 |
Corporate securities and commercial paper |  | — |  |  | 487 |  |  | — |  |  | 487 |
Certificate of deposit |  | — |  |  | 9 |  |  | — |  |  | 9 |
Total assets measured at fair value |  | $ | 155 |  |  | $ | 855 |  |  | $ | — |  |  | $ | 1,010 |

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