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Other Current Liabilities (Tables)
 6 Months Ended
Jun. 30, 2023
Other Liabilities Disclosure [Abstract]  
Schedule of Other Current Liabilities Other current liabilities consist of the following (in millions):
June 30, 2023December 31, 2022
Passenger and other taxes and fees payable$128 $113 
Salaries, wages and benefits98 104 
Aircraft maintenance58 63 
Station obligations49 57 
Fuel liabilities33 34 
Leased aircraft return costs28 84 
Other current liabilities62 63 
Total other current liabilities$456 $518