Financial Instruments Schedule of Gains and Losses of Derivative Financial Instruments Not Designated as Hedges (Details) - Other Income [Member] - Nondesignated [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments	$ 1.6	$ (0.5)	$ 8.4	$ (4.0)
Derivative, Gain (Loss) on Derivative, Net	$ 1.6	$ (0.5)	$ 8.4	$ (4.0)