Basis of Presentation (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended
	Aug. 31, 2023	Sep. 30, 2023
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Collective bargaining agreement, one-time payment		$ 754
Adjustments to other benefit-related items		229
American Airlines, Inc.
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Collective bargaining agreement, term	4 years
Collective bargaining agreement, initial rate increase, percent	21.00%
Collective bargaining agreement, one-time payment		754
Adjustments to other benefit-related items		$ 229