Revenues - Commercial Vehicle Distribution (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenues
Total revenues	$ 7,447.8	$ 6,920.7	$ 22,255.3	$ 20,803.0
Commercial vehicle distribution and other
Revenues
Total revenues	157.7	143.4	444.6	438.2
Commercial vehicle distribution and other | Service and parts
Revenues
Total revenues	$ 68.4	$ 62.7	$ 197.7	$ 178.3