Consolidated Balance Sheets - American Airlines, Inc. (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Accumulated amortization of intangibles	$ 841	$ 834
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)	657,566,166	654,273,192
Common stock, shares outstanding (in shares)	657,566,166	654,273,192
American Airlines, Inc.
Accumulated amortization of intangibles	$ 841	$ 834
Common stock, par value (in dollars per share)	$ 1.00	$ 1.00
Common stock, shares authorized (in shares)	1,000	1,000
Common stock, shares issued (in shares)	1,000	1,000
Common stock, shares outstanding (in shares)	1,000	1,000