Financial Instruments - Income Statement (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 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	$ 30.9		$ 30.9		$ 10.1
Gain (loss) expected to be reclassified in one year or less			0.3
Interest rate swaps | Interest expense and finance charges
Derivatives Designated As Net Investment Hedges Under Topic 815 Abstract
Gain (loss) recognized in net income	(2.8)		8.5
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	0.4		0.4		(0.1)
Gain (loss) expected to be reclassified in one year or less			0.5
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	0.7	$ (1.3)	0.9	$ (1.6)
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	(0.4)	1.8	(0.6)	5.6
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	0.1		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				(0.4)
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	(0.2)		(0.2)		(2.1)
Gain (loss) expected to be reclassified in one year or less			(0.2)
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	(0.4)	(0.1)	(1.5)	(0.1)
Currency Swap [Member] | Interest expense and finance charges
Derivatives Designated As Net Investment Hedges Under Topic 815 Abstract
Gain (loss) reclassified from accumulated OCI into net income, effective portion, net		$ 0.4		$ 0.4
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	11.7		11.7		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	19.0		19.0		$ 0.1
Fixed rate debt swapped to floating [Member] | Interest expense and finance charges
Derivatives Designated As Net Investment Hedges Under Topic 815 Abstract
Gain (loss) recognized in net income	$ 2.8		$ (8.5)