Financial Instruments - Income Statement (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income, Effective Portion, Net [Abstract]
Accumulated other comprehensive income (loss), cumulative changes in net gain (loss) from cash flow hedges, before tax	$ (13.9)		$ 10.1
Gain (loss) expected to be reclassified in one year or less	(0.2)
Foreign currency
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income, Effective Portion, Net [Abstract]
Accumulated other comprehensive income (loss), cumulative changes in net gain (loss) from cash flow hedges, before tax	0.6		(0.1)
Gain (loss) expected to be reclassified in one year or less	0.6
Foreign currency | Sales
Derivatives Designated As Net Investment Hedges Under Topic 815 Abstract
Gain (loss) reclassified from accumulated OCI into net income, effective portion, net		$ (0.3)
Foreign currency | Cost of goods sold
Derivatives Designated As Net Investment Hedges Under Topic 815 Abstract
Gain (loss) reclassified from accumulated OCI into net income, effective portion, net	(0.5)	1.5
Foreign currency | SG&A expense
Derivatives Designated As Net Investment Hedges Under Topic 815 Abstract
Gain (loss) recognized in net income, ineffective portion and amount excluded from effectiveness testing, net	0.2	0.1
Foreign currency | SG&A expense
Derivatives Designated As Net Investment Hedges Under Topic 815 Abstract
Gain (loss) recognized in net income, ineffective portion and amount excluded from effectiveness testing, net		$ (0.3)
Commodity contracts
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income, Effective Portion, Net [Abstract]
Accumulated other comprehensive income (loss), cumulative changes in net gain (loss) from cash flow hedges, before tax	(0.8)		(2.1)
Gain (loss) expected to be reclassified in one year or less	(0.8)
Commodity contracts | Cost of goods sold
Derivatives Designated As Net Investment Hedges Under Topic 815 Abstract
Gain (loss) reclassified from accumulated OCI into net income, effective portion, net	(0.1)
Net investment hedge
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income, Effective Portion, Net [Abstract]
Accumulated other comprehensive income (loss), cumulative changes in net gain (loss) from cash flow hedges, before tax	12.3		12.2
Gain (loss) expected to be reclassified in one year or less	0.0
Foreign currency denominated debt designated as a net investment hedge [Member]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income, Effective Portion, Net [Abstract]
Accumulated other comprehensive income (loss), cumulative change in foreign currency denominated debt, before tax	$ (26.0)		$ 0.1