Segment Information Reconciliation of Operating Profit (Loss) from Segments to Consolidated (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment income	$ 100.7	$ 67.6
Restructuring and other	(2.7)	(1.1)
Intangible amortization	(7.6)	(8.2)
Asset Impairment	0.0	(15.3)
Gain on sale of businesses	0.0	3.5
Other expense	(1.2)	(0.6)
Income from continuing operations before income taxes	92.6	63.2
Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment income	111.5	98.7
Segment Reconciling Items [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Restructuring and other	(2.4)	(1.1)
Intangible amortization	(7.6)	(8.2)
Gain on sale of businesses	0.0	3.5
COVID-19 related costs and expenses	(0.9)	0.0
Net interest expense	(6.9)	(7.3)
Other expense	(0.7)	(1.2)
Segment Reconciling Items [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Deal-related costs and expenses	(0.4)	(4.2)
Inventory step-up	0.0	(1.7)
Asset Impairment	$ 0.0	$ (15.3)