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Revenues - Other Disclosures (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Revenues |  |  |
Total revenues | $ 20,443.9 | $ 23,179.4 | $ 22,785.1
Commercial Vehicle Distribution and Other |  |  |
Revenues |  |  |
Total revenues | $ 454.2 | 513.1 | $ 561.4
Vehicle Sales | Retail Automotive and Retail Commercial Truck Dealership |  |  |
Revenues |  |  |
Payment period | 30 days |  |
Service and parts | Retail Automotive and Retail Commercial Truck Dealership |  |  |
Revenues |  |  |
Payment period | 30 days |  |
Finance and insurance, net | Retail Automotive and Retail Commercial Truck Dealership |  |  |
Revenues |  |  |
Payment period | 30 days |  |
Aggregate reserves relating to chargeback activity | $ 28.7 | 26.6 |
Penske Australia | Commercial Vehicle Distribution and Other |  |  |
Revenues |  |  |
Payment period | 30 days |  |
Penske Australia | Service and parts | Commercial Vehicle Distribution and Other |  |  |
Revenues |  |  |
Total revenues | $ 220.3 | $ 265.1 |

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