Other Operating Income (Expense), net (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Restructuring Cost and Reserve [Line Items]
Other operating income (expense), net	$ (9.2)		$ 0.1	$ (25.1)	$ 6.4
Accelerated depreciation		$ 17.9
Employee-related charges
Restructuring Cost and Reserve [Line Items]
Other operating income (expense), net	(7.5)		0.2	(8.3)	1.1
Asset abandonment and other restructuring costs
Restructuring Cost and Reserve [Line Items]
Other operating income (expense), net	(1.1)		0.0	(19.7)	0.0
Gains (losses) on disposals and other
Restructuring Cost and Reserve [Line Items]
Other operating income (expense), net	$ (0.6)		$ (0.1)	$ 2.9	$ 5.3