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Commitment and Contingencies - Employees Under Collective Bargaining Agreements (Details)	12 Months Ended
	Dec. 31, 2022
Flight Attendants | Unionized Employees Concentration Risk
Other Commitments [Line Items]
Concentration risk, percentage	32.70%
Pilots | Unionized Employees Concentration Risk
Other Commitments [Line Items]
Concentration risk, percentage	20.90%
Maintenance Technicians | Unionized Employees Concentration Risk
Other Commitments [Line Items]
Concentration risk, percentage	10.10%
Flight Dispatchers | Unionized Employees Concentration Risk
Other Commitments [Line Items]
Concentration risk, percentage	0.90%
Total
Other Commitments [Line Items]
Concentration risk, percentage	53.60%
Total | Unionized Employees Concentration Risk
Other Commitments [Line Items]
Concentration risk, percentage	64.60%

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Concentration Risk, Percentage

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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