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)

Amount, after reclassification adjustment, of tax (expense) benefit for (increase) decrease in accumulated other comprehensive income of defined benefit plan.

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