Leases - Maturities of Lease Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Operating Leases
2026	$ 1,501
2027	1,367
2028	1,246
2029	1,138
2030	954
2031 and thereafter	3,022
Total lease payments	9,228
Less: Imputed interest	(2,265)
Total operating lease liabilities	6,963	$ 7,068
Less: Current obligations	(1,058)	(1,092)
Long-term lease obligations	5,905	5,976
Finance Leases
2026	164
2027	152
2028	110
2029	102
2030	100
2031 and thereafter	310
Total lease payments	938
Less: Imputed interest	(211)
Total finance lease liabilities	727	663
Less: Current obligations	(117)	(132)
Long-term lease obligations	610	531
American Airlines, Inc.
Operating Leases
2026	1,487
2027	1,358
2028	1,238
2029	1,131
2030	948
2031 and thereafter	2,987
Total lease payments	9,149
Less: Imputed interest	(2,241)
Total operating lease liabilities	6,908	7,008
Less: Current obligations	(1,048)	(1,082)
Long-term lease obligations	5,860	5,926
Finance Leases
2026	161
2027	152
2028	110
2029	102
2030	100
2031 and thereafter	310
Total lease payments	935
Less: Imputed interest	(211)
Total finance lease liabilities	724	663
Less: Current obligations	(114)	(132)
Long-term lease obligations	$ 610	$ 531