Summary of Non-Accrual Loans and Finance Leases with Specific Reserve and No Specific Reserve (Details) - Financial Services - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Financing Receivable, Recorded Investment, Past Due [Line Items]
Amortized cost basis with a specific reserve	$ 117.8	$ 74.1
Amortized cost basis with no specific reserve	17.6	23.6
Total	135.4	97.7
Customer Retail | Fleet
Financing Receivable, Recorded Investment, Past Due [Line Items]
Amortized cost basis with a specific reserve	113.0	69.8
Amortized cost basis with no specific reserve	15.4	22.8
Total	128.4	92.6
Customer Retail | Owner/Operator
Financing Receivable, Recorded Investment, Past Due [Line Items]
Amortized cost basis with a specific reserve	4.8	4.3
Amortized cost basis with no specific reserve	2.2	0.8
Total	$ 7.0	$ 5.1