Income Taxes - Components of Income Tax Provision (Benefit) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current income tax provision:
State and Local	$ 0	$ 0	$ 2
Foreign	0	0	8
Current income tax provision	0	0	10
Deferred income tax provision (benefit):
Federal	(508)	(2,335)	498
State and Local	(47)	(233)	62
Deferred income tax provision (benefit)	(555)	(2,568)	560
Total income tax provision (benefit)	(555)	(2,568)	570
American Airlines, Inc.
Current income tax provision:
State and Local	0	0	2
Foreign	0	0	8
Current income tax provision	0	0	10
Deferred income tax provision (benefit):
Federal	(453)	(2,224)	567
State and Local	(47)	(229)	56
Deferred income tax provision (benefit)	(500)	(2,453)	623
Total income tax provision (benefit)	$ (500)	$ (2,453)	$ 633