Financial Instruments Schedule of Gains and Losses of Derivative Financial Instruments Not Designated as Hedges (Details) - Undesignated Hedges [Member] - Foreign Exchange [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Derivative instruments, gain (loss) recognized in Income, net	$ (29.6)	$ 58.0	$ (39.2)
Other, net [Member]
Derivative instruments, gain (loss) recognized in Income, net	$ (29.6)	$ 58.0	$ (39.2)