Fair Value Disclosure - Recurring and Nonrecurring (Details) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Millions		Jun. 30, 2018	Dec. 31, 2017
Designated as Hedging Instrument [Member]
Assets
Foreign Currency Cash Flow Hedge Asset at Fair Value	[1]	$ 2.7	$ 1.2
Liabilities
Interest rate derivatives	[2]	12.2	4.7
Foreign Currency Fair Value Hedge Liability at Fair Value	[1]	23.5
Foreign exchange rate derivatives	[1]		(27.7)
Not Designated as Hedging Instrument [Member]
Liabilities
Foreign exchange rate derivatives	[1]	(1.0)	(6.9)
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value	[1]	0.4
Fair Value, Inputs, Level 2 [Member] | Designated as Hedging Instrument [Member]
Assets
Foreign Currency Cash Flow Hedge Asset at Fair Value	[1]	2.7
Liabilities
Interest rate derivatives	[2]	12.2	4.7
Foreign Currency Fair Value Hedge Liability at Fair Value	[1]	$ 23.5
Foreign exchange rate derivatives	[1]		$ (27.7)

[1] (2) Not designated as hedges

[2] (1) Designated as hedges