Consolidated Balance Sheets - American Airlines Group Inc. (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Accumulated amortization of intangibles	$ 834	$ 827
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	1,750,000,000	1,750,000,000
Common stock, shares issued (in shares)	654,273,192	650,642,461
Common stock, shares outstanding (in shares)	654,273,192	650,642,461