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Other Current Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2025 | Dec. 31, 2024
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Other Liabilities Disclosure [Abstract] |  |
Passenger and other taxes and fees payable | $ 148 | $ 141
Salaries, wages and benefits | 143 | 120
Station obligations | 78 | 80
Aircraft maintenance | 65 | 51
Fuel liabilities | 36 | 39
Leased aircraft return costs | 7 | 20
Other current liabilities | 48 | 49
Total other current liabilities | $ 525 | $ 500

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