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Revenue Recognition (Tables)
 9 Months Ended
Sep. 30, 2024
Revenue from Contract with Customer [Abstract]  
Schedule of Revenue Recognized By Revenue The following table provides revenue recognized by revenue source for the three and nine months ended September 30, 2024 and 2023 (in millions):
Three Months Ended September 30,Nine Months Ended September 30,
2024202320242023
Passenger revenue
Passenger travel$2,069 $2,087 $6,042 $6,402 
Loyalty revenue - air transportation129 114 476 440 
Other revenue
Loyalty revenue116 104 336 308 
Other revenue51 48 148 140 
Total operating revenue$2,365 $2,353 $7,002 $7,290 
Schedule of 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):
September 30, 2024December 31, 2023
Air traffic liability - passenger travel$1,137 $1,099 
Air traffic liability - loyalty program (air transportation)1,101 1,072 
Deferred revenue (1)
427 487 
Total$2,665 $2,658 
    
(1) Deferred revenue is included within other accrued liabilities and other liabilities 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 nine months ended September 30, 2024 and 2023 (in millions):
Balance at December 31, 2023$1,072 
TrueBlue® points redeemed passenger
(476)
TrueBlue® points redeemed other
(18)
TrueBlue® points earned and sold
523 
Balance at September 30, 2024$1,101 
Balance at December 31, 2022$1,000 
TrueBlue® points redeemed passenger
(423)
TrueBlue® points redeemed other
(17)
TrueBlue® points earned and sold
485 
Balance at September 30, 2023$1,045