Leases - Maturities of Lease Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Operating Leases
2024	$ 1,809
2025	1,510
2026	1,289
2027	1,120
2028	988
2029 and thereafter	3,708
Total lease payments	10,424
Less: Imputed interest	(2,663)
Total operating lease liabilities	7,761	$ 8,024
Less: Current obligations	(1,309)	(1,465)
Long-term lease obligations	6,452	6,559
Finance Leases
2024	166
2025	140
2026	114
2027	71
2028	30
2029 and thereafter	89
Total lease payments	610
Less: Imputed interest	(104)
Total finance lease liabilities	506	761
Less: Current obligations	(131)	(216)
Long-term lease obligations	375	545
American Airlines, Inc.
Operating Leases
2024	1,789
2025	1,498
2026	1,280
2027	1,115
2028	985
2029 and thereafter	3,682
Total lease payments	10,349
Less: Imputed interest	(2,641)
Total operating lease liabilities	7,708	7,961
Less: Current obligations	(1,292)	(1,449)
Long-term lease obligations	6,416	6,512
Finance Leases
2024	156
2025	140
2026	114
2027	71
2028	30
2029 and thereafter	89
Total lease payments	600
Less: Imputed interest	(102)
Total finance lease liabilities	498	744
Less: Current obligations	(124)	(209)
Long-term lease obligations	$ 374	$ 535