Basis of Presentation (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating revenues	$ 8,899	$ 4,008
Percentage of revenue recovered	84.00%
Decrease in flying in percentage	10.70%
Decrease in domestic capacity in percentage	7.50%
Decrease in international capacity in percentage	17.40%
American Airlines, Inc.
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating revenues	$ 8,896	$ 4,008
Decrease in flying in percentage	10.70%
Decrease in domestic capacity in percentage	7.50%
Decrease in international capacity in percentage	17.40%