Segment Information Reconciliation of Income from Continuing Operations from Segments to Consolidated (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment Income (Loss)	$ 517.6	$ 516.3	$ 536.8
Restructuring costs	(14.1)	(14.0)	(40.6)
Impairment of trade names	0.0	(21.2)	(12.0)
Gain (Loss) on Disposition of Business	(0.1)	2.2	(7.3)
Loss on early extinguishment of debt	0.0	0.0	(17.1)
Income from continuing operations before income taxes	432.1	407.5	379.8
Segment Reconciling Items [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment Income (Loss)	517.6	516.3	536.8
Restructuring costs	(15.4)	(21.0)	(31.8)
Inventory Step Up Related To Merger	0.0	(2.2)	0.0
Amortization	(28.4)	(31.7)	(34.9)
Mark-to-market actuarial gains (losses) on pension and post-retirement benefit plans	(6.7)	3.4	(3.6)
Impairment of trade names	0.0	(21.2)	(12.0)
Gain (Loss) on Disposition of Business	(0.1)	2.2	(7.3)
Loss on early extinguishment of debt	0.0	0.0	(17.1)
Interest Revenue (Expense), Net	(23.9)	(30.1)	(32.6)
Corporate allocations	0.0	0.0	(11.0)
Deal related costs and expenses	(0.6)	(4.2)	(2.0)
Other Expenses	0.0	(4.0)	(4.7)
Income from continuing operations before income taxes	432.1	407.5	379.8
COVID-19 related costs and expenses	$ (10.4)	$ 0.0	$ 0.0