Fair Value Disclosure (Details) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2017 USD ($) Instrument	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($) Instrument	Sep. 30, 2016 USD ($)	Dec. 31, 2016 USD ($) Instrument
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months				$ (3.3)
Derivative, Net Liability Position, Aggregate Fair Value		$ 23.7		23.7
Derivative Asset, Notional Amount		450.0		450.0		$ 550.0
Asset Impairment Charges				1.9	$ 1.8
Liabilities
Derivative, Notional Amount		290.2		290.2		412.1
Cash Flow Hedge Pre Tax Gain Loss to be Reclassified within Twelve Months				(5.2)
Fair Value, Measurements, Recurring [Member] | Designated as Hedging Instrument [Member]
Assets
Interest rate derivatives	[1]	0.1		0.1		2.9
Foreign Currency Cash Flow Hedge Asset at Fair Value	[2]	2.6		2.6		12.2
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value	[2]					1.3
Liabilities
Interest rate derivatives	[1]	0.9		0.9		0.1
Foreign Currency Fair Value Hedge Liability at Fair Value	[2]	22.8		22.8
Fair Value, Measurements, Recurring [Member] | Not Designated as Hedging Instrument [Member]
Assets
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value	[2]	0.3		0.3
Liabilities
Foreign exchange rate derivatives	[2]	(2.9)		(2.9)
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Designated as Hedging Instrument [Member]
Assets
Interest rate derivatives	[1]	0.1		0.1		2.9
Foreign Currency Cash Flow Hedge Asset at Fair Value	[2]	2.6		2.6
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value	[2]					1.3
Liabilities
Interest rate derivatives	[1]	0.9		0.9		$ 0.1
Foreign Currency Fair Value Hedge Liability at Fair Value	[2]	$ 22.8		$ 22.8
Cash Flow Hedging [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative, Number of Instruments Held | Instrument		11		11		9
Other Nonoperating Income (Expense) [Member] | Cash Flow Hedging [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Effective portion reclassified from accumulated other comprehensive loss		$ 10.1	$ 3.3	$ 33.8	13.6
Other Expense [Member] | Not Designated as Hedging Instrument [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net		$ (2.0)	$ 2.2	4.1	(0.1)
Portfolio Management [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset Impairment Charges				$ 0.0	$ (1.8)

[1] (1) Designated as hedges

[2] (2) Not designated as hedges