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Share Based Compensation - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation costs	$ 78	$ 98	$ 91
Common stock withheld or sold related to tax obligations (in shares)	1,200,000	1,000,000	700,000
Payment of certain tax withholding obligations associated with employee equity awards	$ 21	$ 18	$ 15
AAG Incentive Award Plan 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for grant (in shares)				40,000,000
American Airlines, Inc.
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation costs	$ 75	$ 95	$ 91
Common stock withheld or sold related to tax obligations (in shares)	1,200,000	1,000,000	700,000
Payment of certain tax withholding obligations associated with employee equity awards	$ 21	$ 18	$ 15
American Airlines, Inc. \| AAG Incentive Award Plan 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for grant (in shares)				40,000,000