Segment Information - Financial Information, Including Significant Expenses, by Reportable Segment (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2025 USD ($) segment	Jun. 30, 2024 USD ($)
Segment Information
Number of reportable segments | segment			2
Revenue	$ 1,449.5	$ 1,450.6	$ 2,545.3	$ 2,547.1
Selling and administrative expenses	196.9	189.3	390.9	356.1
Research and development expenses	11.1	9.3	21.8	18.5
Other operating expense (income), net	(1.9)	(7.2)	(4.5)	(9.5)
Operating income	335.0	377.5	518.6	602.7
Interest expense	14.7	18.8	29.5	37.4
Interest income	(1.4)	(13.8)	(7.8)	(21.7)
Other non-operating expense (income), net	(1.9)	(0.1)	(1.7)	(0.4)
Income from continuing operations before income taxes	323.6	372.6	498.6	587.4
Operating Segments
Segment Information
Revenue	1,449.5	1,450.6	2,545.3	2,547.1
Cost of goods sold	906.7	881.1	1,616.8	1,577.7
Selling and administrative expenses	164.7	158.7	328.4	296.0
Research and development expenses	11.1	9.3	21.8	18.5
Other operating expense (income), net	0.7	(4.5)	1.0	(4.5)
Operating income	366.3	406.0	577.3	659.4
Corporate
Segment Information
Operating income	31.3	28.5	58.7	56.7
CCM
Segment Information
Revenue	1,095.6	1,088.9	1,894.1	1,872.5
CCM | Operating Segments
Segment Information
Revenue	1,095.6	1,088.9	1,894.1	1,872.5
Cost of goods sold	665.1	643.1	1,166.0	1,131.6
Selling and administrative expenses	100.0	97.7	195.0	175.0
Research and development expenses	7.1	6.5	15.2	13.2
Other operating expense (income), net	(0.4)	(5.2)	(0.7)	(5.3)
Operating income	323.8	346.8	518.6	558.0
CWT
Segment Information
Revenue	353.9	361.7	651.2	674.6
CWT | Operating Segments
Segment Information
Revenue	353.9	361.7	651.2	674.6
Cost of goods sold	241.6	238.0	450.8	446.1
Selling and administrative expenses	64.7	61.0	133.4	121.0
Research and development expenses	4.0	2.8	6.6	5.3
Other operating expense (income), net	1.1	0.7	1.7	0.8
Operating income	$ 42.5	$ 59.2	$ 58.7	$ 101.4