Revenue Recognition - Significant Categories of Reported Operating Revenues (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenue from External Customer [Line Items]
Operating revenues	$ 13,462	$ 8,969	$ 35,783	$ 20,455
Passenger
Revenue from External Customer [Line Items]
Operating revenues	12,396	7,957	32,438	17,682
Passenger travel
Revenue from External Customer [Line Items]
Operating revenues	11,536	7,287	30,150	16,177
Loyalty revenue - travel
Revenue from External Customer [Line Items]
Operating revenues	860	670	2,288	1,505
Cargo
Revenue from External Customer [Line Items]
Operating revenues	279	332	970	973
Other
Revenue from External Customer [Line Items]
Operating revenues	787	680	2,375	1,800
Loyalty revenue - marketing services
Revenue from External Customer [Line Items]
Operating revenues	655	585	1,991	1,571
Co-branded credit card and other partners
Revenue from External Customer [Line Items]
Operating revenues	1,000	835	3,400	2,600
Other revenue
Revenue from External Customer [Line Items]
Operating revenues	132	95	384	229
American Airlines, Inc.
Revenue from External Customer [Line Items]
Operating revenues	13,461	8,968	35,778	20,454
American Airlines, Inc. | Passenger
Revenue from External Customer [Line Items]
Operating revenues	12,396	7,957	32,438	17,682
American Airlines, Inc. | Passenger travel
Revenue from External Customer [Line Items]
Operating revenues	11,536	7,287	30,150	16,177
American Airlines, Inc. | Loyalty revenue - travel
Revenue from External Customer [Line Items]
Operating revenues	860	670	2,288	1,505
American Airlines, Inc. | Cargo
Revenue from External Customer [Line Items]
Operating revenues	279	332	970	973
American Airlines, Inc. | Other
Revenue from External Customer [Line Items]
Operating revenues	786	679	2,370	1,799
American Airlines, Inc. | Loyalty revenue - marketing services
Revenue from External Customer [Line Items]
Operating revenues	655	585	1,991	1,571
American Airlines, Inc. | Co-branded credit card and other partners
Revenue from External Customer [Line Items]
Operating revenues	1,000	835	3,400	2,600
American Airlines, Inc. | Other revenue
Revenue from External Customer [Line Items]
Operating revenues	$ 131	$ 94	$ 379	$ 228