Asset-Backed Financing - Schedule of Transfer of Financial Assets Accounted for as Sales (Details) - Consolidated VIEs - Secured debt: - USD ($) $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2025	Sep. 30, 2024
U.S. Line of Credit | Asset-Backed Securitization VIE | SPE
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings
Transfers	$ 0.0	$ 584.4	$ 0.0	$ 663.1	$ 607.8	$ 0.0	$ 584.4	$ 1,270.9
Proceeds	0.0	500.0	0.0	600.0	550.0	0.0	500.0	1,150.0
Proceeds, net	0.0	497.8	0.0	597.6	547.6	0.0	497.8	1,145.2
U.S. Line of Credit | Asset-backed U.S. commercial paper conduit facility
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings
Transfers	0.0	0.0	179.5	0.0	0.0	334.8	179.5	334.8
Proceeds	$ 0.0	$ 0.0	$ 155.0	0.0	0.0	306.0	155.0	306.0
Foreign Line of Credit | Asset-backed Canadian commercial paper conduit facility
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings
Transfers				17.9	20.6	34.9	$ 0.0	73.4
Proceeds				$ 14.7	$ 16.9	$ 28.6		$ 60.2