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Consolidated Statement of Comprehensive Income (Parenthetical) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Deferred taxes on postretirement | $ 4 | $ (5) | $ 24
Other deferred taxes | 3 | 8 | 6
Fuel derivative contracts |  |  |
Deferred taxes on unrealized gain (loss) on derivatives, tax effect | $ (14) | $ (103) | $ (44)

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