Consolidated Statements of Comprehensive Income - American Airlines Group Inc. - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 111	$ 846	$ 822
Other comprehensive income (loss), net of tax:
Pension, retiree medical and other postretirement benefits	176	327	(312)
Investments	0	2	3
Total other comprehensive income (loss), net of tax	176	329	(309)
Total comprehensive income	$ 287	$ 1,175	$ 513