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Transactions with Related Parties (Details) - USD ($) $ in Millions | Mar. 31, 2024 | Dec. 31, 2023
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Related Party Transaction [Line Items] |  |
AAG’s wholly-owned subsidiaries | $ (2,927) | $ (2,353)
American Airlines, Inc. |  |
Related Party Transaction [Line Items] |  |
AAG’s wholly-owned subsidiaries | (2,820) | (2,232)
Total | 7,238 | 7,070
American Airlines, Inc. | Total |  |
Related Party Transaction [Line Items] |  |
Total | 7,238 | 7,070
American Airlines, Inc. | AAG |  |
Related Party Transaction [Line Items] |  |
AAG | 9,388 | 9,144
American Airlines, Inc. | AAG's wholly-owned subsidiaries |  |
Related Party Transaction [Line Items] |  |
AAG’s wholly-owned subsidiaries | $ (2,150) | $ (2,074)

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