Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Non-cash investing and financing activities:
Equity investments	$ 12	$ 88	$ 0
Settlement of bankruptcy obligations	0	(1)	56
Deferred financing costs paid through issuance of debt	0	0	17
Supplemental information:
Interest paid, net	1,852	1,632	944
Income taxes paid	2	3	6
American Airlines, Inc.
Non-cash investing and financing activities:
Equity investments	12	88	0
Settlement of bankruptcy obligations	0	4	56
Deferred financing costs paid through issuance of debt	0	0	17
Supplemental information:
Interest paid, net	1,716	1,481	877
Income taxes paid	$ 2	$ 2	$ 6