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Supplemental Financial Information - Accounts Payable (Details) - USD ($)
$ in Millions
Mar. 31, 2023
Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Accounts payable trade $ 272 $ 277
Salaries, withholdings and payroll taxes 368 456
Ticket taxes and fees 434 242
Aircraft maintenance payable 91 65
Fuel payable 113 188
Dividends payable 0 107
Customer reimbursements and refunds 17 311
Accrued third party services 240 196
Other payable 194 162
Accounts payable $ 1,729 $ 2,004