Condensed Consolidated Statements of Comprehensive Income (Loss) - American Airlines Group Inc. - USD ($) $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (545)	$ 1,338	$ 10	$ 483	$ 476	$ (1,635)	$ 803	$ (676)
Other comprehensive income (loss), net of tax:
Pension, retiree medical and other postretirement benefits	(237)			29			(203)	85
Investments	(1)			(1)			0	(5)
Total other comprehensive income (loss), net of tax	(238)	$ 17	$ 18	28	$ 26	$ 26	(203)	80
Total comprehensive income (loss)	$ (783)			$ 511			$ 600	$ (596)