Valuation and Qualifying Accounts and Reserves (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Reserves against accounts receivable:
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	$ (12.6)	$ (14.4)	$ (12.2)
(Charges) Income	(0.8)	(0.1)	(3.2)
Deductions from (increase to) reserves and other	3.1	1.9	1.0
Balance at end of period	(10.3)	(12.6)	(14.4)
Reserves against accounts receivable transferred to held for sale	1.0
Valuation allowances against deferred tax assets:
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	(143.6)	(153.2)	(151.4)
(Charges) Income	78.3	21.8	5.1
Deductions from (increase to) reserves and other	(4.2)	(12.2)	(6.9)
Balance at end of period	$ (69.5)	$ (143.6)	$ (153.2)