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v3.25.4

Investments - Narrative (Detail) - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2025 | Sep. 30, 2025 | Dec. 31, 2024
Debt Securities, Available-for-sale [Line Items] |  |  |
Contractual maturities term (maximum) | 37 months |  |
Continuous loss position, 12 months or greater, fair value | $ 14 |  | $ 18
Unrealized loss | 171 |  | 2,419
Strategic investments | $ 1,542 |  | $ 472
Genesys |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Equity securities without readily determinable fair value, amount |  | $ 750 |

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