Restructuring and Other Costs (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Restructuring Cost and Reserve [Line Items]
Restructuring Costs	$ 21.1	$ 47.4	$ 22.5
Other Restructuring Costs	26.5	10.0	0.0
Settlement loss (gain)		10.6	6.1
Other Costs	14.3	2.7	6.1
Restructuring and other costs	61.9	60.4	$ 28.6
Pension Plans, Defined Benefit [Member]
Restructuring Cost and Reserve [Line Items]
Settlement loss (gain)	$ 0.0	$ 10.6