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Business Combinations - Schedule of Pro Forma Supplementary Data (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Asset Acquisition [Line Items] |  |
Historic/pro forma total revenues | $ 3,609 | $ 3,355
Historic/combined pretax income | 295 | 457
Impact of fair value adjustments/useful life changes on depreciation | 3 | 3
Intangible asset amortization | (5) | (8)
Interest expense | (10) | (18)
Elimination of historic interest | 3 | 5
Elimination of merger related costs | 2 | 0
Pro forma pretax income | 288 | 439
Herc |  |
Asset Acquisition [Line Items] |  |
Historic/pro forma total revenues | 3,568 | 3,282
Historic/combined pretax income | 291 | 447
Otay |  |
Asset Acquisition [Line Items] |  |
Historic/pro forma total revenues | 41 | 73
Historic/combined pretax income | 4 | 10
Impact of fair value adjustments/useful life changes on depreciation | 3 | 3
Intangible asset amortization | (5) | (8)
Interest expense | (10) | (18)
Elimination of historic interest | 3 | 5
Elimination of merger related costs | $ 2 | $ 0

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