Commitments and Contingencies (Marshalltown Tornado and Recovery) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Insurance recoveries received	$ 124.3	$ 0.0	$ 0.0
Site clean-up and remediation	50.9
Factory inefficiencies	7.4
Write-off of property, plant and equipment	4.2
Write-off of inventory	5.8
Other	17.7
Total expense due to natural disaster	86.0
Gains form Insurance recoveries	38.3
Loss(gain) from natural disaster, net of Insurance recoveries	10.9	0.0	0.0
Insurance proceeds for lost profits	$ 27.4	$ 0.0	$ 0.0