Consolidated Statements of Stockholders' Equity (Deficit) - American Airlines Group Inc. - USD ($) $ in Millions	Total	Cumulative Effect, Period of Adoption, Adjustment	At-the-market Offering	PSP2 and PSP3 Warrants	Common Stock	Additional Paid-in Capital	Additional Paid-in Capital Cumulative Effect, Period of Adoption, Adjustment	Additional Paid-in Capital At-the-market Offering	Additional Paid-in Capital PSP2 and PSP3 Warrants	Accumulated Other Comprehensive Loss	Retained Earnings (Deficit)	Retained Earnings (Deficit) Cumulative Effect, Period of Adoption, Adjustment
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Impact of adoption of Accounting Standards Update (ASU) 2020-06 related to convertible instruments	$ (6,867)	$ (301)			$ 6	$ 6,894	$ (320)			$ (7,103)	$ (6,664)	$ 19
Beginning Balance at Dec. 31, 2020	(6,867)	$ (301)			6	6,894	$ (320)			(7,103)	(6,664)	$ 19
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(1,993)										(1,993)
Other comprehensive income (loss), net	1,161									1,161
Issuance of 24,150,764 shares of AAG common stock pursuant to an at-the-market offering, net of offering costs			$ 460					$ 460
Issuance of warrants				$ 121					$ 121
Issuance of shares of AAG common stock pursuant to employee stock plans net of shares withheld for cash taxes	(18)					(18)
Share-based compensation expense	98					98
Settlement of single-dip unsecured claims held in DCR	(1)					(1)
Ending Balance at Dec. 31, 2021	(7,340)				6	7,234				(5,942)	(8,638)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Impact of adoption of Accounting Standards Update (ASU) 2020-06 related to convertible instruments	(7,340)				6	7,234				(5,942)	(8,638)
Net income (loss)	127										127
Other comprehensive income (loss), net	1,357									1,357
Issuance of shares of AAG common stock pursuant to employee stock plans net of shares withheld for cash taxes	(21)					(21)
Share-based compensation expense	78					78
Ending Balance at Dec. 31, 2022	(5,799)				6	7,291				(4,585)	(8,511)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Impact of adoption of Accounting Standards Update (ASU) 2020-06 related to convertible instruments	(5,799)				6	7,291				(4,585)	(8,511)
Net income (loss)	822										822
Other comprehensive income (loss), net	(309)									(309)
Issuance of shares of AAG common stock pursuant to employee stock plans net of shares withheld for cash taxes	(22)				1	(23)
Share-based compensation expense	102					102
Settlement of single-dip unsecured claims held in DCR	4					4
Ending Balance at Dec. 31, 2023	(5,202)				7	7,374				(4,894)	(7,689)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Impact of adoption of Accounting Standards Update (ASU) 2020-06 related to convertible instruments	$ (5,202)				$ 7	$ 7,374				$ (4,894)	$ (7,689)