Revenue Recognition - Passenger Revenue by Geographic Region (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Airline Destination Disclosure [Line Items]
Operating revenues	$ 12,189	$ 8,899
Passenger
Airline Destination Disclosure [Line Items]
Operating revenues	11,103	7,818
Passenger | Domestic
Airline Destination Disclosure [Line Items]
Operating revenues	8,037	6,060
Passenger | Latin America
Airline Destination Disclosure [Line Items]
Operating revenues	1,915	1,227
Passenger | Atlantic
Airline Destination Disclosure [Line Items]
Operating revenues	931	466
Passenger | Pacific
Airline Destination Disclosure [Line Items]
Operating revenues	220	65
American Airlines, Inc.
Airline Destination Disclosure [Line Items]
Operating revenues	12,188	8,896
American Airlines, Inc. | Passenger
Airline Destination Disclosure [Line Items]
Operating revenues	11,103	7,818
American Airlines, Inc. | Passenger | Domestic
Airline Destination Disclosure [Line Items]
Operating revenues	8,037	6,060
American Airlines, Inc. | Passenger | Latin America
Airline Destination Disclosure [Line Items]
Operating revenues	1,915	1,227
American Airlines, Inc. | Passenger | Atlantic
Airline Destination Disclosure [Line Items]
Operating revenues	931	466
American Airlines, Inc. | Passenger | Pacific
Airline Destination Disclosure [Line Items]
Operating revenues	$ 220	$ 65