Revenue Recognition - Passenger Revenue by Geographic Region (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Airline Destination Disclosure [Line Items]
Operating revenues	$ 13,422	$ 7,478	$ 22,321	$ 11,486
Passenger
Airline Destination Disclosure [Line Items]
Operating revenues	12,223	6,545	20,041	9,724
Passenger | Domestic
Airline Destination Disclosure [Line Items]
Operating revenues	9,120	5,444	15,180	8,099
Passenger | Latin America
Airline Destination Disclosure [Line Items]
Operating revenues	1,534	936	2,761	1,417
Passenger | Atlantic
Airline Destination Disclosure [Line Items]
Operating revenues	1,481	125	1,947	147
Passenger | Pacific
Airline Destination Disclosure [Line Items]
Operating revenues	88	40	153	61
American Airlines, Inc.
Airline Destination Disclosure [Line Items]
Operating revenues	13,421	7,478	22,317	11,485
American Airlines, Inc. | Passenger
Airline Destination Disclosure [Line Items]
Operating revenues	12,223	6,545	20,041	9,724
American Airlines, Inc. | Passenger | Domestic
Airline Destination Disclosure [Line Items]
Operating revenues	9,120	5,444	15,180	8,099
American Airlines, Inc. | Passenger | Latin America
Airline Destination Disclosure [Line Items]
Operating revenues	1,534	936	2,761	1,417
American Airlines, Inc. | Passenger | Atlantic
Airline Destination Disclosure [Line Items]
Operating revenues	1,481	125	1,947	147
American Airlines, Inc. | Passenger | Pacific
Airline Destination Disclosure [Line Items]
Operating revenues	$ 88	$ 40	$ 153	$ 61