Income Taxes - Components of Income Tax Provision (Benefit) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Current income tax benefit:
State, local and foreign	$ (6)	$ 0	$ 0
Deferred income tax provision (benefit):
Federal	59	(508)	(2,335)
State and local	6	(47)	(233)
Deferred income tax provision (benefit)	65	(555)	(2,568)
Total income tax provision (benefit)	59	(555)	(2,568)
American Airlines, Inc.
Current income tax benefit:
State, local and foreign	(6)	0	0
Deferred income tax provision (benefit):
Federal	112	(453)	(2,224)
State and local	10	(47)	(229)
Deferred income tax provision (benefit)	122	(500)	(2,453)
Total income tax provision (benefit)	$ 116	$ (500)	$ (2,453)