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Derivatives - Derivatives by Balance Sheet Location (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Derivatives, Fair Value [Line Items]
Asset Derivatives	$ 7.4		$ 7.4		$ 6.8
Liability Derivatives	14.7		14.7		14.4
Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives	7.1		7.1		6.7
Liability Derivatives	14.7		14.7		14.4
Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives	0.3		0.3		0.1
Liability Derivatives	0.0		0.0		0.0
Foreign exchange contracts [Member] \| Designated as Hedging Instrument [Member] \| Accounts receivable, net [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives	2.7		2.7		4.7
Foreign exchange contracts [Member] \| Designated as Hedging Instrument [Member] \| Other assets [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives	0.0		0.0		0.0
Foreign exchange contracts [Member] \| Designated as Hedging Instrument [Member] \| Accrued expenses [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives	2.5		2.5		0.2
Foreign exchange contracts [Member] \| Designated as Hedging Instrument [Member] \| Other liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives	12.2		12.2		14.2
Foreign exchange contracts [Member] \| Not Designated as Hedging Instrument [Member] \| Accounts receivable, net [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives	0.3		0.3		0.1
Foreign exchange contracts [Member] \| Not Designated as Hedging Instrument [Member] \| Accounts Payable [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives	0.0		0.0		0.0
Interest rate contracts [Member] \| Designated as Hedging Instrument [Member] \| Other assets [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives	4.4		4.4		2.0
Interest rate contracts [Member] \| Designated as Hedging Instrument [Member] \| Other liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives	0.0		0.0		$ 0.0
Cash Flow Hedging [Member]
Derivatives, Fair Value [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	(2.2)	$ (3.7)	0.3	$ (2.6)
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	0.8	0.6	1.6	0.4
Cash Flow Hedging [Member] \| Interest rate contracts [Member]
Derivatives, Fair Value [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	0.8	(0.5)	3.0	(0.8)
Cash Flow Hedging [Member] \| Sales [Member] \| Foreign exchange contracts [Member]
Derivatives, Fair Value [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	(3.1)	(0.4)	(2.7)	1.5
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	0.1	(0.1)	0.7	(0.1)
Cash Flow Hedging [Member] \| Other Income Expense [Member] \| Foreign exchange contracts [Member]
Derivatives, Fair Value [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	0.1	(2.8)	0.0	(3.3)
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	0.2	1.0	0.0	1.2
Cash Flow Hedging [Member] \| Interest Expense [Member] \| Interest rate contracts [Member]
Derivatives, Fair Value [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	$ 0.5	$ (0.3)	$ 0.9	$ (0.7)