Discontinued Operations - Narrative (Details) - Performance Products and Solutions - Discontinued Operations, Disposed of by Sale - USD ($) $ in Millions	Oct. 25, 2019	Mar. 31, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash consideration	$ 768.9
Consideration, working capital adjustment		$ 7.1
Gain on disposal, net of tax	$ 457.7

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

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