Summary of Non-Accrual Loans and Finance Leases with Specific Reserve and No Specific Reserve (Details) - Financial Services - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Financing Receivable, Recorded Investment, Past Due [Line Items]
Amortized cost basis with a specific reserve	$ 202.4	$ 355.5
Amortized cost basis with no specific reserve	96.1	28.1
Total	298.5	383.6
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	196.2	350.0
Amortized cost basis with no specific reserve	95.1	25.8
Total	291.3	375.8
Customer Retail | Owner/Operator
Financing Receivable, Recorded Investment, Past Due [Line Items]
Amortized cost basis with a specific reserve	6.2	5.5
Amortized cost basis with no specific reserve	1.0	1.4
Total	$ 7.2	$ 6.9