Commitments and Contingencies - Collective Bargaining Agreements (Details)	9 Months Ended
	Sep. 30, 2022
Multiemployer Plan [Line Items]
Amount of employees represented by unions	87.00%
Pilots
Multiemployer Plan [Line Items]
Amount of employees represented by unions	31.00%
Flight Attendants
Multiemployer Plan [Line Items]
Amount of employees represented by unions	51.00%
Aircraft Technicians
Multiemployer Plan [Line Items]
Amount of employees represented by unions	3.00%
Aircraft Appearance Agents
Multiemployer Plan [Line Items]
Amount of employees represented by unions	1.00%
Dispatchers
Multiemployer Plan [Line Items]
Amount of employees represented by unions	1.00%
Material Specialists
Multiemployer Plan [Line Items]
Amount of employees represented by unions	1.00%
Maintenance Controllers
Multiemployer Plan [Line Items]
Amount of employees represented by unions	1.00%