Discontinued Operations - Operating Results (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operations, net of tax	$ 2.2	$ 26.1	$ 278.7	$ 63.8
Discontinued Operations, Held-for-Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales	0.0	157.1	40.5	440.1
Cost of goods sold	0.0	81.5	20.9	239.3
Gross profit	0.0	75.6	19.6	200.8
Selling, general and administrative	0.2	39.8	16.9	105.9
Research and development	0.0	4.6	1.3	13.5
Operating income (loss)	(0.2)	31.2	1.4	81.4
Other expense (income)	0.0	(0.1)
Income (loss) from discontinued operations before gain from sale and income taxes	(0.2)	31.3	1.4	81.5
Loss (gain) from sale of discontinued operations before income taxes	0.1	0.0	(435.3)	0.0
Provision for (benefit from) income taxes	(2.5)	5.2	158.0	17.7
Income from discontinued operations, net of tax	$ 2.2	$ 26.1	$ 278.7	$ 63.8

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Amount before tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

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