v3.24.0.1
Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2023
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 TypeEstimated Useful LifeResidual Value
Aircraft (1)
25 years20 %
Inflight entertainment systems
5-10 years
%
Aircraft partsFleet life10 %
Flight equipment leasehold improvementsLower of lease term or economic life%
Ground property and equipment
2-10 years
%
Leasehold improvements - otherLower of lease term or economic life%
Buildings on leased landLease term%
(1) The estimated remaining useful life of our Embraer E190 fleet ranges from 0-2 years with an average residual value of 12%. In addition, five Airbus A320 airframe were extended to an estimated useful life of between 26 to 27 years with an average residual value of $1.5 million.
Schedule of Amortization Expense As of December 31, 2023, amortization expense related to computer software is expected to be as follows (in millions):
Amortization Expense
2024$57 
202543 
202630 
202721 
2028