Derivative Instruments - Schedule of Derivative Instruments Measured at Fair Value in Statement of Financial Position (Details) - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Derivatives, Fair Value [Line Items]
Derivative Assets	$ 40.2	$ 57.5
Derivative Liabilities	(14.2)	(16.0)
Level 2 | Derivatives designated as hedges: | Cross-currency swap agreements | Other Long Term Assets and Other Long Term Liabilities
Derivatives, Fair Value [Line Items]
Notional Amount	730.9	730.9
Level 2 | Derivatives designated as hedges: | Cross-currency swap agreements | Other long-term assets
Derivatives, Fair Value [Line Items]
Derivative Assets	9.4	11.9
Level 2 | Derivatives designated as hedges: | Cross-currency swap agreements | Other long-term liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(8.5)	(6.9)
Level 2 | Derivatives designated as hedges: | Cross-currency swap agreements | Other Current Assets and Other Current Liabilities
Derivatives, Fair Value [Line Items]
Notional Amount	2.0	3.3
Level 2 | Derivatives designated as hedges: | Cross-currency swap agreements | Other current assets
Derivatives, Fair Value [Line Items]
Derivative Assets	0.1	0.1
Level 2 | Derivatives designated as hedges: | Cross-currency swap agreements | Other current liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	0.0	0.0
Level 2 | Derivatives designated as hedges: | Interest rate swaps | Other Current Assets and Other Current Liabilities
Derivatives, Fair Value [Line Items]
Notional Amount	106.9	105.4
Level 2 | Derivatives designated as hedges: | Interest rate swaps | Other current assets
Derivatives, Fair Value [Line Items]
Derivative Assets	0.0	0.0
Level 2 | Derivatives designated as hedges: | Interest rate swaps | Other current liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(1.7)	(2.3)
Level 2 | Derivatives not designated as hedges: | Foreign currency option and forward contracts | Other Long Term Assets and Other Long Term Liabilities
Derivatives, Fair Value [Line Items]
Notional Amount	588.6	742.6
Level 2 | Derivatives not designated as hedges: | Foreign currency option and forward contracts | Other long-term assets
Derivatives, Fair Value [Line Items]
Derivative Assets	16.1	26.7
Level 2 | Derivatives not designated as hedges: | Foreign currency option and forward contracts | Other long-term liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(3.1)	(5.8)
Level 2 | Derivatives not designated as hedges: | Foreign currency option and forward contracts | Other Current Assets and Other Current Liabilities
Derivatives, Fair Value [Line Items]
Notional Amount	614.3	552.2
Level 2 | Derivatives not designated as hedges: | Foreign currency option and forward contracts | Other current assets
Derivatives, Fair Value [Line Items]
Derivative Assets	14.6	18.8
Level 2 | Derivatives not designated as hedges: | Foreign currency option and forward contracts | Other current liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	$ (0.9)	$ (1.0)