Condensed Consolidated Balance Sheets - American Airlines, Inc. (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Accumulated amortization of intangibles	$ 843	$ 841
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 outstanding (in shares)	659,481,003	657,566,166
Common stock, shares issued (in shares)	659,481,003	657,566,166
American Airlines, Inc.
Accumulated amortization of intangibles	$ 843	$ 841
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 outstanding (in shares)	1,000	1,000
Common stock, shares issued (in shares)	1,000	1,000