Segment Information Reconciliation of Income from Continuing Operations from Segments to Consolidated (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating Income (Loss)	$ 137.4	$ 192.2	$ 212.8	$ 138.4	$ 161.8	$ 182.8	$ 203.4	$ 152.7	$ 680.8	$ 700.7	$ 616.1
Segment Income (Loss)											755.2
Restructuring costs									(58.7)	(24.5)	(41.3)
Mark-to-market actuarial gains (losses) on pension and post-retirement benefit plans					$ 4.2
Impairment of trade names									32.0	13.3	0.0
Gain (Loss) on Disposition of Business									(4.2)	(3.9)	(3.2)
Gain (Loss) on Extinguishment of Debt									(101.4)	0.0	0.0
Income from continuing operations before income taxes									489.2	561.0	512.5
Segment Reconciling Items [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment Income (Loss)											755.2
Payments for Merger Related Costs									0.0	0.0	14.3
Inventory Step Up Related To Merger									0.0	0.0	35.7
Restructuring costs											(42.5)
Separation Costs of Proposed Spin-Off									(53.1)	0.0	0.0
Amortization											(68.1)
Mark-to-market actuarial gains (losses) on pension and post-retirement benefit plans									1.6	4.2	(23.0)
Impairment of trade names									(32.0)	(13.3)	0.0
Gain (Loss) on Disposition of Business											(3.2)
Gain (Loss) on Extinguishment of Debt											0.0
Interest Revenue (Expense), Net											$ (101.9)
Segment Reconciling Items [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Restructuring costs									(30.7)	(20.6)
Amortization									(97.7)	(96.4)
Gain (Loss) on Disposition of Business									(4.2)	(3.9)
Gain (Loss) on Extinguishment of Debt									(101.4)	0.0
Interest Revenue (Expense), Net									(87.3)	(140.1)
Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating Income (Loss)									$ 897.2	$ 839.5