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COMMITMENTS (Tables) | 9 Months Ended
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Sep. 30, 2024
Commitments and Contingencies Disclosure [Abstract] |
Schedule of Future Minimum Rental Payments for Operating Leases and Unrecorded Unconditional Purchase Obligtaions | as of September 30, 2024.
(in millions) |  | Aircraft-Related Commitments |  | Capacity Purchase Agreements |  |
Remainder of 2024 |  | $ | 337 |  |  | $ | 49 |  |  |
2025 |  | 1,380 |  |  | 204 |  |  |
2026 |  | 1,620 |  |  | 207 |  |  |
2027 |  | 1,180 |  |  | 213 |  |  |
2028 |  | — |  |  | 219 |  |  |
Thereafter |  | — |  |  | 507 |  |  |
Total |  | $ | 4,517 |  |  | $ | 1,399 |  |  |

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