Discontinued Operations - Results from Discontinued Operations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income before income taxes	$ 0.3	$ 480.3	$ 21.7
Income (loss) from discontinued operations	(1.8)	446.7	48.5
Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues		328.6	1,113.2
Cost of goods sold		237.5	796.1
Impairment			24.8
Other operating expenses, net		34.4	175.5
Operating income		56.7	116.8
Other non-operating (income) expense, net		30.8	1.3
Income (loss) from discontinued operations before income taxes and (loss) gain on sale		25.9	115.5
Pre-close transaction expenses			11.3
Loss (gain) on sale of discontinued operations		(454.4)	82.5
Income before income taxes	0.3	480.3	21.7
Provision for (benefit from) income taxes	$ 2.1	33.6	(26.8)
Income (loss) from discontinued operations		446.7	48.5
CIT | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues		328.6	886.1
Cost of goods sold		237.5	666.9
Impairment			0.0
Other operating expenses, net		34.4	119.7
Operating income		56.7	99.5
Other non-operating (income) expense, net		0.5	(0.5)
Income (loss) from discontinued operations before income taxes and (loss) gain on sale		56.2	100.0
Pre-close transaction expenses			11.3
Loss (gain) on sale of discontinued operations		(457.3)	0.0
Income before income taxes		513.5	88.7
Provision for (benefit from) income taxes		49.0	1.3
Income (loss) from discontinued operations		464.5	87.4
CFT | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues		0.0	227.1
Cost of goods sold		0.0	129.2
Impairment			24.8
Other operating expenses, net		0.0	55.8
Operating income		0.0	17.3
Other non-operating (income) expense, net		24.9	0.0
Income (loss) from discontinued operations before income taxes and (loss) gain on sale		(24.9)	17.3
Pre-close transaction expenses			0.0
Loss (gain) on sale of discontinued operations		2.9	82.5
Income before income taxes		(27.8)	(65.2)
Provision for (benefit from) income taxes		(9.5)	(26.2)
Income (loss) from discontinued operations		(18.3)	(39.0)
Other | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues		0.0	0.0
Cost of goods sold		0.0	0.0
Impairment			0.0
Other operating expenses, net		0.0	0.0
Operating income		0.0	0.0
Other non-operating (income) expense, net		5.4	1.8
Income (loss) from discontinued operations before income taxes and (loss) gain on sale		(5.4)	(1.8)
Pre-close transaction expenses			0.0
Loss (gain) on sale of discontinued operations		0.0	0.0
Income before income taxes		(5.4)	(1.8)
Provision for (benefit from) income taxes		(5.9)	(1.9)
Income (loss) from discontinued operations		$ 0.5	$ 0.1