Share Based Compensation - Restricted Stock Unit Awards (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Weighted Average Grant Date Fair Value [Abstract]
Modification of share-based awards	$ 20
Restricted Stock Units (RSUs), Stock Settled
Number of Shares [Roll Forward]
Number of Shares, Beginning Balance (in shares)	14,235	10,263	9,401
Number of Shares, Granted (in shares)	2,580	9,834	5,882
Number of Shares, Modified (in shares)	(2,809)
Number of Shares, Vested and released (in shares)	(4,833)	(5,161)	(4,131)
Number of Shares, Forfeited (in shares)	(827)	(701)	(889)
Number of Shares, Ending balance (in shares)	8,346	14,235	10,263
Weighted Average Grant Date Fair Value [Abstract]
Weighted Average Grant Date Fair Value, Beginning Balance (in dollars per share)	$ 15.18	$ 17.51	$ 20.17
Weighted Average Grant Date Fair Value, Granted (in dollars per share)	15.76	14.54	15.93
Weighted Average Grant Date Fair Value, Modified (in dollars per share)	16.18
Weighted Average Grant Date Fair Value, Vested and released (in dollars per share)	15.91	17.81	21.04
Weighted Average Grant Date Fair Value, Forfeited (in dollars per share)	15.83	20.49	18.04
Weighted Average Grant Date Fair Value, Ending balance (in dollars per share)	$ 15.59	$ 15.18	$ 17.51
Number of Shares, Modified (in shares)	2,809
CRSU
Number of Shares [Roll Forward]
Number of Shares, Beginning Balance (in shares)	37
Number of Shares, Granted (in shares)	5,634
Number of Shares, Modified (in shares)	(2,809)
Number of Shares, Vested and released (in shares)	(1,337)
Number of Shares, Forfeited (in shares)	(136)
Number of Shares, Ending balance (in shares)	7,007	37
Weighted Average Grant Date Fair Value [Abstract]
Weighted Average Grant Date Fair Value, Beginning Balance (in dollars per share)	$ 13.74
Weighted Average Grant Date Fair Value, Granted (in dollars per share)	17.43
Weighted Average Grant Date Fair Value, Modified (in dollars per share)	16.18
Weighted Average Grant Date Fair Value, Vested and released (in dollars per share)	14.75
Weighted Average Grant Date Fair Value, Forfeited (in dollars per share)	17.42
Weighted Average Grant Date Fair Value, Ending balance (in dollars per share)	$ 17.43	$ 13.74
Number of Shares, Modified (in shares)	2,809
American Airlines, Inc.
Weighted Average Grant Date Fair Value [Abstract]
Modification of share-based awards	$ 20
American Airlines, Inc. | Restricted Stock Units (RSUs), Stock Settled
Number of Shares [Roll Forward]
Number of Shares, Beginning Balance (in shares)	14,235	10,263	9,401
Number of Shares, Granted (in shares)	2,580	9,834	5,882
Number of Shares, Modified (in shares)	(2,809)
Number of Shares, Vested and released (in shares)	(4,833)	(5,161)	(4,131)
Number of Shares, Forfeited (in shares)	(827)	(701)	(889)
Number of Shares, Ending balance (in shares)	8,346	14,235	10,263
Weighted Average Grant Date Fair Value [Abstract]
Weighted Average Grant Date Fair Value, Beginning Balance (in dollars per share)	$ 15.18	$ 17.51	$ 20.17
Weighted Average Grant Date Fair Value, Granted (in dollars per share)	15.76	14.54	15.93
Weighted Average Grant Date Fair Value, Modified (in dollars per share)	16.18
Weighted Average Grant Date Fair Value, Vested and released (in dollars per share)	15.91	17.81	21.04
Weighted Average Grant Date Fair Value, Forfeited (in dollars per share)	15.83	20.49	18.04
Weighted Average Grant Date Fair Value, Ending balance (in dollars per share)	$ 15.59	$ 15.18	$ 17.51
Number of Shares, Modified (in shares)	2,809
American Airlines, Inc. | CRSU
Number of Shares [Roll Forward]
Number of Shares, Beginning Balance (in shares)	37
Number of Shares, Granted (in shares)	5,634
Number of Shares, Modified (in shares)	(2,809)
Number of Shares, Vested and released (in shares)	(1,337)
Number of Shares, Forfeited (in shares)	(136)
Number of Shares, Ending balance (in shares)	7,007	37
Weighted Average Grant Date Fair Value [Abstract]
Weighted Average Grant Date Fair Value, Beginning Balance (in dollars per share)	$ 13.74
Weighted Average Grant Date Fair Value, Granted (in dollars per share)	17.43
Weighted Average Grant Date Fair Value, Modified (in dollars per share)	16.18
Weighted Average Grant Date Fair Value, Vested and released (in dollars per share)	14.75
Weighted Average Grant Date Fair Value, Forfeited (in dollars per share)	17.42
Weighted Average Grant Date Fair Value, Ending balance (in dollars per share)	$ 17.43	$ 13.74
Number of Shares, Modified (in shares)	2,809