v3.25.4

Level 3 plan assets roll forward (Details) - Buy-in annuity insurance contract - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024
Defined Benefit Plan, Plan Assets, Level 3 Reconciliation [Line Items] |  |
Balance at the beginning of the year | $ 565 | $ 2
Purchase of insurance contract | 0 | 590
Return on assets | 23 | (18)
Payment from the insurance policy | (27) | (9)
Balance at the end of the year | $ 561 | $ 565

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