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Commitment and Contingencies - Employees Under Collective Bargaining Agreements (Details)	12 Months Ended
	Dec. 31, 2025
Pilots | Unionized Employees Concentration Risk
Other Commitments [Line Items]
Concentration risk, percentage	23.60%
Flight Attendants | Unionized Employees Concentration Risk
Other Commitments [Line Items]
Concentration risk, percentage	31.80%
Maintenance Technicians | Unionized Employees Concentration Risk
Other Commitments [Line Items]
Concentration risk, percentage	14.60%
Flight Dispatchers | Unionized Employees Concentration Risk
Other Commitments [Line Items]
Concentration risk, percentage	1.20%
Total
Other Commitments [Line Items]
Concentration risk, percentage	23.60%
Total | Unionized Employees Concentration Risk
Other Commitments [Line Items]
Concentration risk, percentage	71.20%

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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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