Financial Instruments and Risk Management (Effect of Derivative Instruments on the Condensed Consolidated Balance Sheets Fair Value of Derivative Instruments Derivatives Designated As Hedging Instruments) (Details) - Designated as Hedging Instrument - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Derivatives, Fair Value [Line Items]
Asset Derivatives, Fair Value	$ 80.3	$ 44.7
Liability Derivatives, Fair Value	69.9	10.5
Prepaid expenses and other current assets | Interest rate swaps
Derivatives, Fair Value [Line Items]
Asset Derivatives, Fair Value	65.8	36.3
Prepaid expenses and other current assets | Foreign exchange forward contracts
Derivatives, Fair Value [Line Items]
Asset Derivatives, Fair Value	14.5	8.4
Other current liabilities | Interest rate swaps
Derivatives, Fair Value [Line Items]
Liability Derivatives, Fair Value	$ 69.9	$ 10.5