Income Taxes - Reconciliation of Income Tax Provision (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Line Items]
Statutory income tax provision (benefit)	$ 39	$ (535)	$ (2,405)
State, local and foreign income tax benefit, net of federal tax effect	0	(37)	(183)
Book expenses not deductible for tax purposes	22	23	22
Other, net	(2)	(6)	(2)
Total income tax provision (benefit)	59	(555)	(2,568)
American Airlines, Inc.
Income Tax Disclosure [Line Items]
Statutory income tax provision (benefit)	95	(478)	(2,290)
State, local and foreign income tax benefit, net of federal tax effect	3	(37)	(181)
Book expenses not deductible for tax purposes	20	21	20
Other, net	(2)	(6)	(2)
Total income tax provision (benefit)	$ 116	$ (500)	$ (2,453)