Contingencies and Commitments - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Mar. 08, 2024
Loss Contingencies [Line Items]
Loss contingency, estimate	$ 150.0
Loss contingency accrual	147.5			$ 147.5
Guaranty liabilities	63.0	$ 32.0
Premium expected to be collected	99.0	32.0
Estimated insurance recoveries	36.0	1.0
Operating lease ROU asset	85.0	118.0
Present value of minimum lease payments	$ 89.0	$ 129.0
Weighted average discount rate, operating lease	4.00%	4.40%
Weighted average remaining operating lease term	4 years	4 years
Operating lease expense	$ 36.0	$ 42.0	$ 45.0
Certain Financing Arrangments
Loss Contingencies [Line Items]
Present value of minimum lease payments	$ 511.0	$ 595.0