Summary of Non-Accrual Loans and Finance Leases with Specific Reserve and No Specific Reserve (Details) - Financial Services - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Past Due [Line Items]
Amortized cost basis with a specific reserve	$ 74.1	$ 37.5
Amortized cost basis with no specific reserve	23.6	16.9
Total	97.7	54.4
Dealer | Retail
Financing Receivable, Past Due [Line Items]
Amortized cost basis with no specific reserve		0.7
Total		0.7
Customer Retail | Fleet
Financing Receivable, Past Due [Line Items]
Amortized cost basis with a specific reserve	69.8	33.9
Amortized cost basis with no specific reserve	22.8	16.2
Total	92.6	50.1
Customer Retail | Owner/Operator
Financing Receivable, Past Due [Line Items]
Amortized cost basis with a specific reserve	4.3	3.6
Amortized cost basis with no specific reserve	0.8
Total	$ 5.1	$ 3.6