Condensed Consolidated Statements of Stockholder's Equity - American Airlines, Inc. - USD ($) $ in Millions	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Loss	Retained Deficit	American Airlines, Inc.	American Airlines, Inc. Common Stock	American Airlines, Inc. Additional Paid-in Capital	American Airlines, Inc. Accumulated Other Comprehensive Loss	American Airlines, Inc. Retained Deficit
Beginning balance at Dec. 31, 2021	$ (7,340)	$ 6	$ 7,234	$ (5,942)	$ (8,638)	$ 3,826	$ 0	$ 17,152	$ (6,041)	$ (7,285)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(1,635)				(1,635)	(1,578)				(1,578)
Other comprehensive income (loss), net	26			26		26			26
Share-based compensation expense	23		23			23		23
Ending balance at Mar. 31, 2022	(8,940)	6	7,243	(5,916)	(10,273)	2,297	0	17,175	(6,015)	(8,863)
Beginning balance at Dec. 31, 2021	(7,340)	6	7,234	(5,942)	(8,638)	3,826	0	17,152	(6,041)	(7,285)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(676)					(517)
Other comprehensive income (loss), net	80					80
Ending balance at Sep. 30, 2022	(7,893)	6	7,277	(5,862)	(9,314)	3,448	0	17,211	(5,961)	(7,802)
Beginning balance at Mar. 31, 2022	(8,940)	6	7,243	(5,916)	(10,273)	2,297	0	17,175	(6,015)	(8,863)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	476				476	521				521
Other comprehensive income (loss), net	26			26		26			26
Share-based compensation expense	18		18			18		18
Ending balance at Jun. 30, 2022	(8,422)	6	7,259	(5,890)	(9,797)	2,862	0	17,193	(5,989)	(8,342)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	483				483	540				540
Other comprehensive income (loss), net	28			28		28			28
Share-based compensation expense	18		18			18		18
Ending balance at Sep. 30, 2022	(7,893)	6	7,277	(5,862)	(9,314)	3,448	0	17,211	(5,961)	(7,802)
Beginning balance at Dec. 31, 2022	(5,799)	6	7,291	(4,585)	(8,511)	5,593	0	17,230	(4,690)	(6,947)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	10				10	85				85
Other comprehensive income (loss), net	18			18		18			18
Share-based compensation expense	15		15			14		14
Ending balance at Mar. 31, 2023	(5,771)	7	7,290	(4,567)	(8,501)	5,710	0	17,244	(4,672)	(6,862)
Beginning balance at Dec. 31, 2022	(5,799)	6	7,291	(4,585)	(8,511)	5,593	0	17,230	(4,690)	(6,947)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	803					1,056
Other comprehensive income (loss), net	(203)					(203)
Ending balance at Sep. 30, 2023	(5,136)	7	7,353	(4,788)	(7,708)	6,525	0	17,309	(4,893)	(5,891)
Beginning balance at Mar. 31, 2023	(5,771)	7	7,290	(4,567)	(8,501)	5,710	0	17,244	(4,672)	(6,862)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	1,338				1,338	1,423				1,423
Other comprehensive income (loss), net	17			17		17			17
Share-based compensation expense	32		32			32		32
Ending balance at Jun. 30, 2023	(4,385)	7	7,321	(4,550)	(7,163)	7,182	0	17,276	(4,655)	(5,439)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(545)				(545)	(452)				(452)
Other comprehensive income (loss), net	(238)			(238)		(238)			(238)
Share-based compensation expense	29		29			28		28
Intercompany equity transfer						5		5
Ending balance at Sep. 30, 2023	$ (5,136)	$ 7	$ 7,353	$ (4,788)	$ (7,708)	$ 6,525	$ 0	$ 17,309	$ (4,893)	$ (5,891)