Derivative Instruments and Hedging Activities (Fair Value and Presentation in the Balance Sheet) (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Fair value of derivative instruments
Asset Derivatives	$ 754.7	$ 651.2
Liability Derivatives	68.6	75.3
Designated as hedging instruments | Foreign exchange contracts | Other current assets
Fair value of derivative instruments
Asset Derivatives	356.2	264.9
Liability Derivatives	18.0	44.9
Designated as hedging instruments | Foreign exchange contracts | Other non-current assets
Fair value of derivative instruments
Asset Derivatives	287.8	322.3
Liability Derivatives	28.0	17.5
Designated as hedging instruments | Foreign exchange contracts | Other current liabilities
Fair value of derivative instruments
Asset Derivatives		0.1
Liability Derivatives		1.7
Designated as hedging instruments | Interest rate swaps | Other current assets
Fair value of derivative instruments
Asset Derivatives	30.7	17.9
Liability Derivatives	0.0	0.0
Designated as hedging instruments | Interest rate swaps | Other non-current assets
Fair value of derivative instruments
Asset Derivatives	26.1	4.8
Liability Derivatives	4.7	0.3
Designated as hedging instruments | Interest rate swaps | Other non-current liabilities
Fair value of derivative instruments
Asset Derivatives	0.2	0.0
Liability Derivatives	0.9	3.8
Not designated as hedging instruments | Foreign exchange contracts | Other current assets
Fair value of derivative instruments
Asset Derivatives	46.0	39.7
Liability Derivatives	5.9	6.0
Not designated as hedging instruments | Foreign exchange contracts | Other current liabilities
Fair value of derivative instruments
Asset Derivatives	2.9	0.1
Liability Derivatives	7.4	1.1
Not designated as hedging instruments | Interest rate swaps | Other current assets
Fair value of derivative instruments
Asset Derivatives	2.4	0.1
Liability Derivatives	2.3	0.0
Not designated as hedging instruments | Interest rate swaps | Other non-current assets
Fair value of derivative instruments
Asset Derivatives	2.4	1.3
Liability Derivatives	$ 1.4	$ 0.0