Summary of Non-Accrual Loans and Finance Leases with Specific Reserve and No Specific Reserve (Details) - Financial Services - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Financing Receivable, Recorded Investment, Past Due [Line Items]
Amortized cost basis with a specific reserve	$ 355.5	$ 74.1
Amortized cost basis with no specific reserve	28.1	23.6
Total	383.6	97.7
Dealer | Wholesale
Financing Receivable, Recorded Investment, Past Due [Line Items]
Amortized cost basis with no specific reserve	0.9
Total	0.9
Customer Retail | Fleet
Financing Receivable, Recorded Investment, Past Due [Line Items]
Amortized cost basis with a specific reserve	350.0	69.8
Amortized cost basis with no specific reserve	25.8	22.8
Total	375.8	92.6
Customer Retail | Owner/Operator
Financing Receivable, Recorded Investment, Past Due [Line Items]
Amortized cost basis with a specific reserve	5.5	4.3
Amortized cost basis with no specific reserve	1.4	0.8
Total	$ 6.9	$ 5.1