Consolidated Statements of Stockholders' Equity (Deficit) - American Airlines Group Inc. - USD ($) $ in Millions	Total	Public Stock Offering	At-the-market Offering	PSP1 Warrant	Treasury Loan Warrants	Cumulative Effect, Period of Adoption, Adjustment	Common Stock	Common Stock Public Stock Offering	Common Stock At-the-market Offering	Additional Paid-in Capital	Additional Paid-in Capital Public Stock Offering	Additional Paid-in Capital At-the-market Offering	Additional Paid-in Capital PSP1 Warrant	Additional Paid-in Capital Treasury Loan Warrants	Additional Paid-in Capital Cumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive Loss	Retained Earnings (Deficit)	Retained Earnings (Deficit) Cumulative Effect, Period of Adoption, Adjustment
Beginning Balance at Dec. 31, 2018	$ (169)						$ 5			$ 4,964						$ (5,896)	$ 758
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	1,686																1,686
Other comprehensive loss, net	(435)															(435)
Issuance of shares of AAG common stock pursuant to employee stock plans net of shares withheld for cash taxes	(25)									(25)
Purchase and retirement of AAG common stock	(1,096)						(1)			(1,095)
Dividends declared on AAG common stock	(180)																(180)
Settlement of single-dip unsecured claims held in Disputed Claims Reserve (DCR)	7									7
Share-based compensation expense	94									94
Ending Balance at Dec. 31, 2019	(118)						4			3,945						(6,331)	2,264
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(8,885)																(8,885)
Other comprehensive loss, net	(772)															(772)
Issuance of warrants				$ 63	$ 25								$ 63	$ 25
Issuance of shares of AAG common stock pursuant to employee stock plans net of shares withheld for cash taxes	(15)									(15)
Issuance of AAG common stock, net of offering costs		$ 1,687	$ 869					$ 1	$ 1		$ 1,686	$ 868
Equity component of convertible debt issued, net of tax and offering costs	320									320
Purchase and retirement of AAG common stock	(145)						0			(145)
Dividends declared on AAG common stock	(43)																(43)
Settlement of single-dip unsecured claims held in Disputed Claims Reserve (DCR)	56									56
Share-based compensation expense	91									91
Ending 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 loss, net	1,161															1,161
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)
Issuance of AAG common stock, net of offering costs			$ 460						$ 0			$ 460
Accounting Standards Update [Extensible List]	Accounting Standards Update 2020-06 [Member]
Settlement of single-dip unsecured claims held in DCR and retirement of 259,878 shares of AAG common stock	$ (1)									(1)
Share-based compensation expense	98									98
Ending Balance at Dec. 31, 2021	$ (7,340)						$ 6			$ 7,234						$ (5,942)	$ (8,638)