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Revenue Recognition (Tables)
 12 Months Ended
Dec. 31, 2024
Revenue from Contract with Customer [Abstract]  
Disaggregation of revenue The following table provides revenue recognized by revenue source for the years ended December 31, 2024, 2023, and 2022 (in millions):
Twelve Months Ended December 31,
202420232022
Passenger revenue
Passenger travel$7,983 $8,403 $8,078 
Loyalty revenue - air transportation634 605 508 
Other revenue
Loyalty revenue464 422 391 
Other revenue198 185 181 
Total operating revenue$9,279 $9,615 $9,158 
Contract with customer, contract asset, contract liability, and receivable
Our contract liabilities primarily consist of ticket sales for which transportation has not yet been provided, unused credits available to customers, and outstanding loyalty points available for redemption (in millions):
December 31, 2024December 31, 2023
Air traffic liability - passenger travel$1,073 $1,099 
Air traffic liability - loyalty program (air transportation)1,125 1,072 
Deferred revenue - passenger travel and loyalty program travel (1)
389 455 
Deferred revenue - other (2)
27 32 
Total $2,614 $2,658 
(1) Included within other accrued liabilities and other liabilities on our consolidated balance sheets.
(2) Included within air traffic liability on our consolidated balance sheets.
The table below presents the activity of the current and non-current air traffic liability for our loyalty program, and includes points earned and sold to participating companies for the years ended December 31, 2024 and 2023 (in millions):
Balance at December 31, 2022$1,000 
TrueBlue® points redeemed passenger
(605)
TrueBlue® points redeemed other
(24)
TrueBlue® points earned and sold
701 
Balance at December 31, 20231,072 
TrueBlue® points redeemed passenger
(634)
TrueBlue® points redeemed other
(26)
TrueBlue® points earned and sold
713 
Balance at December 31, 2024$1,125