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v3.25.1

Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Beginning balance | $ 2,641 | $ 3,337
Reclassifications into earnings, net of taxes | 0 | 2
Change in fair value, net of taxes | 5 | 1
Ending balance | 2,445 | 2,633
Reclassification into earnings, tax | 0 | 0
Change in fair value, tax | 0 | 0
Accumulated Other Comprehensive Income (Loss) |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Beginning balance | 2 | (4)
Ending balance | 7 | (1)
Aircraft fuel derivatives |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Beginning balance | 0 | (3)
Reclassifications into earnings, net of taxes | 0 | 2
Change in fair value, net of taxes | 0 | 1
Ending balance | 0 | 0
Available-for-sale securities |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Beginning balance | 2 | (1)
Reclassifications into earnings, net of taxes | 0 | 0
Change in fair value, net of taxes | 5 | 0
Ending balance | $ 7 | $ (1)

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