Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Non-cash investing and financing activities:
ROU assets acquired through operating leases	$ 889	$ 637	$ 1,180
Operating leases converted to finance leases	269	293	5
Finance leases converted to operating leases	127	50	42
Property and equipment acquired through debt, finance leases and other	70	152	317
Supplemental information:
Interest paid, net	1,696	1,933	2,180
American Airlines, Inc.
Non-cash investing and financing activities:
ROU assets acquired through operating leases	884	614	1,172
Operating leases converted to finance leases	269	293	5
Finance leases converted to operating leases	127	50	42
Property and equipment acquired through debt, finance leases and other	70	151	317
Supplemental information:
Interest paid, net	$ 1,551	$ 1,806	$ 2,058