Other Expense Other Items (Textuals) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Feb. 17, 2016	Dec. 31, 2015
Summary of Investment Holdings [Line Items]
Argentina currency devaluation	$ 0.0	$ 0.0	$ 2.7
Venezuela currency devaluation	1.1	0.0	0.0
Venezuela deconsolidation	0.0	(11.1)	$ 0.0
Foreign Currency Transaction Gain	5.5
Foreign Currency Transaction (Loss)		$ (2.1)
Gain (Loss) on Sale of Assets and Asset Impairment Charges	$ 1.1
VENEZUELA
Summary of Investment Holdings [Line Items]
Foreign currency exchange rate, remeasurement				10.0	6.3