Summary of Non-Accrual Loans and Finance Leases with Specific Reserve and No Specific Reserve (Details) - Financial Services - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Financing Receivable, Recorded Investment, Past Due [Line Items]
Amortized cost basis with a specific reserve	$ 249.9	$ 74.1
Amortized cost basis with no specific reserve	7.1	23.6
Total	257.0	97.7
Customer Retail | Fleet
Financing Receivable, Recorded Investment, Past Due [Line Items]
Amortized cost basis with a specific reserve	244.8	69.8
Amortized cost basis with no specific reserve	5.7	22.8
Total	250.5	92.6
Customer Retail | Owner/Operator
Financing Receivable, Recorded Investment, Past Due [Line Items]
Amortized cost basis with a specific reserve	5.1	4.3
Amortized cost basis with no specific reserve	1.4	0.8
Total	$ 6.5	$ 5.1