Revenue Recognition - Passenger Revenue by Geographic Region (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Airline Destination Disclosure [Line Items]
Operating revenues	$ 14,055	$ 13,422	$ 26,244	$ 22,321
Passenger
Airline Destination Disclosure [Line Items]
Operating revenues	12,978	12,223	24,081	20,041
Passenger | Domestic
Airline Destination Disclosure [Line Items]
Operating revenues	9,195	9,120	17,232	15,180
Passenger | Latin America
Airline Destination Disclosure [Line Items]
Operating revenues	1,640	1,534	3,555	2,761
Passenger | Atlantic
Airline Destination Disclosure [Line Items]
Operating revenues	1,888	1,481	2,819	1,947
Passenger | Pacific
Airline Destination Disclosure [Line Items]
Operating revenues	255	88	475	153
American Airlines, Inc.
Airline Destination Disclosure [Line Items]
Operating revenues	14,054	13,421	26,242	22,317
American Airlines, Inc. | Passenger
Airline Destination Disclosure [Line Items]
Operating revenues	12,978	12,223	24,081	20,041
American Airlines, Inc. | Passenger | Domestic
Airline Destination Disclosure [Line Items]
Operating revenues	9,195	9,120	17,232	15,180
American Airlines, Inc. | Passenger | Latin America
Airline Destination Disclosure [Line Items]
Operating revenues	1,640	1,534	3,555	2,761
American Airlines, Inc. | Passenger | Atlantic
Airline Destination Disclosure [Line Items]
Operating revenues	1,888	1,481	2,819	1,947
American Airlines, Inc. | Passenger | Pacific
Airline Destination Disclosure [Line Items]
Operating revenues	$ 255	$ 88	$ 475	$ 153