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Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Deferred tax assets: |  |
Net operating loss and other carryforwards | $ 4,238 | $ 4,679
Loyalty program liability | 1,774 | 1,809
Leases | 1,758 | 1,819
Pension benefits | 434 | 474
Postretirement benefits other than pension benefits | 274 | 179
Rent expense | 84 | 130
Other | 902 | 742
Total deferred tax assets | 9,464 | 9,832
Valuation allowance | (22) | (19)
Net deferred tax assets | 9,442 | 9,813
Deferred tax liabilities: |  |
Accelerated depreciation and amortization | (4,503) | (4,630)
Leases | (1,798) | (1,832)
Other | (262) | (262)
Total deferred tax liabilities | (6,563) | (6,724)
Net deferred tax asset | 2,879 | 3,089
American Airlines, Inc. |  |
Deferred tax assets: |  |
Net operating loss and other carryforwards | 3,960 | 4,492
Loyalty program liability | 1,774 | 1,809
Leases | 1,746 | 1,804
Pension benefits | 428 | 467
Postretirement benefits other than pension benefits | 273 | 179
Rent expense | 84 | 130
Other | 846 | 689
Total deferred tax assets | 9,111 | 9,570
Valuation allowance | (12) | (9)
Net deferred tax assets | 9,099 | 9,561
Deferred tax liabilities: |  |
Accelerated depreciation and amortization | (4,479) | (4,603)
Leases | (1,786) | (1,817)
Other | (254) | (256)
Total deferred tax liabilities | (6,519) | (6,676)
Net deferred tax asset | $ 2,580 | $ 2,885

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