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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2024
Accounting Policies [Abstract] |
Schedule of property, plant and equipment | Estimated useful lives and residual values for property and equipment are summarized as follows:
Property and Equipment Type |  | Estimated Useful Life |  | Residual Value
Aircraft (1) |  | 25 years |  | 20 | %
Inflight entertainment systems |  | 5-10 years |  | 0 | %
Aircraft parts |  | Fleet life |  | 10 | %
Flight equipment leasehold improvements |  | Lower of lease term or economic life |  | 0 | %
Ground property and equipment |  | 2-10 years |  | 0 | %
Leasehold improvements - other |  | Lower of lease term or economic life |  | 0 | %
Buildings on leased land |  | Lower of lease term or economic life |  | 0 | %
(1) The estimated remaining useful life of our Embraer E190 fleet is less than 1 year with an average residual value of 12%. In addition, the Company is pursuing capital-light growth and as a result certain Airbus A320 airframes were extended to an estimated useful life of between 33 to 35 years with an average residual value of $1.5 million.
Schedule of Amortization Expense | As of December 31, 2024, amortization expense related to computer software is expected to be as follows (in millions):
|  | Amortization Expense
2025 |  | $ | 54 |
2026 |  | 38 |
2027 |  | 29 |
2028 |  | 14 |
2029 |  | 3 |

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