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Revenues - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Revenues |  |  |
Total revenues | $ 30,455.2 | $ 29,527.4 | $ 27,814.8
Revenue recognized from unearned revenue | $ 199.4 |  |
Commercial vehicle distribution and other |  |  |
Revenues |  |  |
Payment period | 45 days |  |
Total revenues | $ 777.9 | 634.0 | 578.8
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 |  |
Finance and insurance, net | Retail Automotive and Retail Commercial Truck Dealership |  |  |
Revenues |  |  |
Aggregate reserves relating to chargeback activity | $ 48.2 | 42.7 |
Service and parts | Commercial vehicle distribution and other |  |  |
Revenues |  |  |
Total revenues | $ 274.1 | $ 265.2 | $ 241.0

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