Income Taxes - Additional Disclosures (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Taxes [Line Items]
Other carryforwards	$ 4,300
Income tax provision (benefit)	$ 59	$ (555)	$ (2,568)
Income tax expense, effective rate	32.00%
Federal
Income Taxes [Line Items]
Gross NOL carryforwards	$ 16,200
Operating loss carryforwards and other carryforwards, subject to expiration	5,900
Operating loss carryforwards and other carryforwards, not subject to expiration	14,600
State
Income Taxes [Line Items]
Operating loss carryforwards, subject to expiration	6,000
American Airlines, Inc.
Income Taxes [Line Items]
Other carryforwards	3,500
Income tax provision (benefit)	$ 116	$ (500)	$ (2,453)
Income tax expense, effective rate	26.00%
American Airlines, Inc. | Federal
Income Taxes [Line Items]
Gross NOL carryforwards	$ 16,100
Operating loss carryforwards and other carryforwards, subject to expiration	6,200
Operating loss carryforwards and other carryforwards, not subject to expiration	13,400
American Airlines, Inc. | State
Income Taxes [Line Items]
Operating loss carryforwards, subject to expiration	$ 5,900