Accounting Policies (Equity Method Investments) (Details) - USD ($) $ in Millions		12 Months Ended
	Mar. 30, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Oct. 23, 2015
Entity Information [Line Items]
Reclassification of foreign currency translation gains to net income		$ 0.0	$ 0.0	$ (10.4)
Proceeds from disposal of equity method investment, net		0.0	0.0	14.6
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax		$ (2.6)	$ 5.2	$ 1.3
JHJ international Transportation Co. [Member] | Discontinued Operations, Disposed of by Sale [Member]
Entity Information [Line Items]
Ownership percentage					50.00%
Equity Method Investment Held For Sale Price	$ 16.3
Proceeds from disposal of equity method investment, net	16.3
Equity Method Investment, Transaction Fee	1.7
Equity Method Investment, Amount Sold	22.7
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	(10.4)
Gain (Loss) on Sale of Equity Investments	$ 2.3