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Vehicle Rental Activities (Components of the Company's Vehicles) (Details) - USD ($) $ in Millions | Mar. 31, 2024 | Dec. 31, 2023 | Mar. 31, 2023
--- | --- | --- | ---
Property, Plant and Equipment [Abstract] |  |  |
Rental vehicles | $ 24,110 | $ 23,114 |
Less: Accumulated depreciation | (2,647) | (2,639) |
Rental Vehicles Net, Total | 21,463 | 20,475 |
Vehicles held for sale | 521 | 734 |
Vehicle, net investment in lease | 36 | 31 |
Vehicles, net | 22,020 | $ 21,240 |
Liabilities under vehicle programs | 483 |  | $ 314
Other receivables | $ 239 |  | $ 137

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