Revenue Recognition - Changes in Loyalty Program Liability (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Movement In Contract With Customer, Liability [Roll Forward]
Beginning balance	$ 15,222
Ending balance	17,308
Loyalty program liability
Movement In Contract With Customer, Liability [Roll Forward]
Beginning balance	9,135
Deferral of revenue	2,367
Recognition of revenue	(2,355)
Ending balance	$ 9,147
Inactive period before expiration of mileage credits	24 months
Deferred revenue, current	$ 3,006	$ 2,896
Revenue recognition term	12 months
American Airlines, Inc.
Movement In Contract With Customer, Liability [Roll Forward]
Beginning balance	$ 15,222
Ending balance	17,308
American Airlines, Inc. | Loyalty program liability
Movement In Contract With Customer, Liability [Roll Forward]
Beginning balance	9,135
Deferral of revenue	2,367
Recognition of revenue	(2,355)
Ending balance	9,147
Deferred revenue, current	$ 3,006	$ 2,896