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Related Party Transactions (Details) - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2021 | Dec. 31, 2023 | Oct. 31, 2023 | Aug. 31, 2023 | Sep. 01, 2022
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Non-controlling interests | $ 8.0 | $ 8.0 |  | $ 8.0 |  |  | $ 6.0 |  |  |
Assets | 33,882.0 | 33,882.0 |  | 33,882.0 |  |  | 32,569.0 |  |  |
Other (income) expense, net |  | (2.0) | $ (4.0) | (3.0) | $ (2.0) |  |  |  |  |
Vehicles, net | 22,474.0 | 22,474.0 |  | 22,474.0 |  |  | 21,240.0 |  |  |
Vehicle, net investment in lease receivables | 80.0 | 80.0 |  | 80.0 |  |  | 31.0 |  |  |
Other non-current assets | 445.0 | 445.0 |  | 445.0 |  |  | 441.0 |  |  |
Avis Mobility Ventures LLC (AMV) | Receivables From Related Party | Related Party |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Vehicles, net | 3.0 | 3.0 |  | 3.0 |  |  | 2.0 |  |  |
Avis Mobility Ventures LLC (AMV) | Avis Mobility Ventures LLC (AMV) | Related Party |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Other non-current assets | 31.0 | 31.0 |  | 31.0 |  |  | $ 24.0 |  |  |
Avis Mobility Ventures LLC (AMV) | Avis Mobility Ventures LLC (AMV) | Administrative Services | Related Party |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Other (income) expense, net |  | 0.0 | 6.0 | 2.0 | 14.0 |  |  |  |  |
Avis Mobility Ventures LLC (AMV) | Avis Mobility Ventures LLC (AMV) | Equipment Investment | Related Party |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Other (income) expense, net |  | 2.0 | $ 10.0 | 5.0 | $ 16.0 |  |  |  |  |
Subsidiary Equity |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Assets | 49.0 | $ 49.0 |  | 49.0 |  |  |  |  |  |
Gain on deconsolidation |  |  |  | $ 10.0 |  |  |  |  |  |
Subsidiary Equity | SRS Mobility Ventures, LLC |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Contributions from non-controlling interests |  |  |  |  |  | $ 37.5 |  |  |  |
Non-controlling interests |  |  |  |  |  |  |  |  |  | $ 62.0
Capital contribution made | 22.2 |  |  |  |  |  |  |  |  |
Decrease from receivables forgiveness | $ 11.7 |  |  |  |  |  |  |  |  |
Subsidiary Equity | SRS Mobility Ventures, LLC | Company Subsidiary |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Ownership acquired percentage |  |  |  |  |  | 33.34% |  |  |  |
Subsidiary Equity | SRS Mobility Ventures, LLC | Maximum | Company Subsidiary |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Ownership interest | 65.00% | 65.00% |  | 65.00% |  |  |  | 65.00% | 65.00% | 51.00%

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