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Accumulated Other Comprehensive Income (Loss) (Tables) | 3 Months Ended
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Mar. 31, 2025
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Schedule of Accumulated Other Comprehensive Income (Loss), Net of Tax | A rollforward of the amounts included in accumulated other comprehensive income (loss), net of taxes for the three months ended March 31, 2025 and 2024 is as follows (in millions):
| Aircraft fuel derivatives (1) |  | Available-for-sale securities |  | Total
Balance of accumulated income at December 31, 2024 | $ | — |  |  | $ | 2 |  |  | $ | 2 |
Reclassifications into earnings, net of taxes of $0 | — |  |  | — |  |  | — |
Change in fair value, net of taxes of $0 | — |  |  | 5 |  |  | 5 |
Balance of accumulated income, at March 31, 2025 | $ | — |  |  | $ | 7 |  |  | $ | 7 |
Balance of accumulated loss, at December 31, 2023 | $ | (3) |  |  | $ | (1) |  |  | $ | (4) |
Reclassifications into earnings, net of taxes of $0 | 2 |  |  | — |  |  | 2 |
Change in fair value, net of taxes of $0 | 1 |  |  | — |  |  | 1 |
Balance of accumulated loss, at March 31, 2024 | $ | — |  |  | $ | (1) |  |  | $ | (1) |
(1) Reclassified to aircraft fuel expense for the three months ended March 31, 2024. As of December 31, 2024 and March 31, 2025 there were no outstanding fuel derivative contracts.

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