Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Tax Credit Carryforward [Line Items]
Other carryforwards					$ 3,000
Deferred tax assets, valuation allowance	$ 34		$ 34
Income tax provision (benefit)	175	$ 37	(148)	$ (296)
Federal
Tax Credit Carryforward [Line Items]
NOL carryforwards					17,200
Operating loss carryforwards and other carryforwards, subject to expiration					6,900
Operating loss carryforwards and other carryforwards, not subject to expiration					13,300
State
Tax Credit Carryforward [Line Items]
NOL carryforward subject to expiration					6,000
American Airlines, Inc.
Tax Credit Carryforward [Line Items]
Other carryforwards					2,400
Deferred tax assets, valuation allowance	24		24
Income tax provision (benefit)	$ 180	$ 68	$ (115)	$ (247)
American Airlines, Inc. | Federal
Tax Credit Carryforward [Line Items]
NOL carryforwards					17,100
Operating loss carryforwards and other carryforwards, subject to expiration					7,300
Operating loss carryforwards and other carryforwards, not subject to expiration					12,200
American Airlines, Inc. | State
Tax Credit Carryforward [Line Items]
NOL carryforward subject to expiration					$ 6,000