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Supplemental Financial Information (Tables) | 3 Months Ended
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Mar. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Accounts and Other Receivables |
(in millions) | March 31, 2024 |  | December 31, 2023 |
Trade receivables | $ | 58 |  |  | $ | 104 |  |
Credit card receivables | 280 |  |  | 200 |  |
Business partners and other suppliers | 612 |  |  | 501 |  |
Taxes receivable | 13 |  |  | 35 |  |
Fuel hedging and receivables | 8 |  |  | 12 |  |
Reinsurance receivable | 251 |  |  | 145 |  |
Other | 132 |  |  | 157 |  |
Accounts and other receivables | $ | 1,354 |  |  | $ | 1,154 |  |
Other Assets |
(in millions) | March 31, 2024 |  | December 31, 2023 |
Derivative contracts | $ | 116 |  |  | $ | 102 |  |
Intangible assets, net | 295 |  |  | 296 |  |
Equity securities | 286 |  |  | 280 |  |
Prepaid maintenance | 264 |  |  | 258 |  |
Other | 63 |  |  | 28 |  |
Other assets | $ | 1,024 |  |  | $ | 964 |  |
Schedule of Accounts Payable |
(in millions) | March 31, 2024 |  | December 31, 2023 |
Accounts payable trade | $ | 281 |  |  | $ | 265 |  |
Salaries, withholdings and payroll taxes | 446 |  |  | 400 |  |
Ticket taxes and fees | 443 |  |  | 302 |  |
Aircraft maintenance payable | 151 |  |  | 140 |  |
Fuel payable | 144 |  |  | 161 |  |
Dividends payable | — |  |  | 107 |  |
Accrued third party services | 229 |  |  | 269 |  |
Other payable | 255 |  |  | 218 |  |
Accounts payable | $ | 1,949 |  |  | $ | 1,862 |  |
Accrued Liabilities |
(in millions) | March 31, 2024 |  | December 31, 2023 |
Voluntary Separation Program | $ | 64 |  |  | $ | 65 |  |
Profitsharing and savings plans | 41 |  |  | 141 |  |
Vacation pay | 541 |  |  | 516 |  |
Health | 174 |  |  | 163 |  |
Workers compensation | 137 |  |  | 133 |  |
Property and income taxes | 56 |  |  | 63 |  |
Interest | 73 |  |  | 34 |  |
Bonus and incentive pay (a) | 736 |  |  | 2,022 |  |
Reinsurance payable | 300 |  |  | 190 |  |
Other | 278 |  |  | 279 |  |
Accrued liabilities | $ | 2,400 |  |  | $ | 3,606 |  |
Other Noncurrent Liabilities |
(in millions) | March 31, 2024 |  | December 31, 2023 |
Voluntary Separation Program | $ | 40 |  |  | $ | 61 |  |
Postretirement obligation | 273 |  |  | 269 |  |
Other deferred compensation | 358 |  |  | 358 |  |
Other | 266 |  |  | 293 |  |
Other noncurrent liabilities | $ | 937 |  |  | $ | 981 |  |
(a) Primarily consists of anticipated contract labor ratification bonuses and/or accruals. Also includes non-contract incentive pay. Approximately $1.35 billion was paid in first quarter 2024 to Pilots as a ratification bonus upon the ratification of the labor contract agreement with the Southwest Airlines Pilots Association ("SWAPA").

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