Acquisitions and Discontinued Operations Income Statement (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Discontinued Operations and Disposal Groups [Abstract]
Net sales	$ 0.0	$ 155.0	$ 0.0	$ 693.9
Cost of goods sold	0.0	93.8	0.0	424.0
Gross profit	0.0	61.2	0.0	269.9
Selling, general and administrative expenses	0.5	93.1	0.8	231.0
Research and development expenses	0.0	3.4	0.0	14.6
Operating (loss) income	(0.5)	(35.3)	(0.8)	24.3
(Loss) income from discontinued operations before income taxes	(0.4)	(37.9)	(1.2)	19.8
Income tax provision (benefit)	0.4	(1.5)	0.7	11.7
(Loss) income from discontinued operations, net of tax	(0.8)	(36.4)	(1.9)	8.1
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax	$ (0.8)	$ (36.4)	$ (1.9)	$ 8.1