Derivative Financial Instruments (Fair Value Of Derivative Instruments In Statement Of Financial Position) (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Derivatives, Fair Value [Line Items]
Derivative Assets	$ 372.0	$ 332.5
Derivative Liabilities	555.4	450.4
Derivatives Designated As Hedging Instruments
Derivatives, Fair Value [Line Items]
Derivative Assets	345.7	301.5
Derivative Liabilities	526.7	421.7
Derivatives Designated As Hedging Instruments | Foreign Exchange Contracts | Current – Derivative financial instruments
Derivatives, Fair Value [Line Items]
Derivative Assets	345.6	172.1
Derivative Liabilities	526.2	207.1
Derivatives Designated As Hedging Instruments | Foreign Exchange Contracts | Long-term – Derivative financial instruments
Derivatives, Fair Value [Line Items]
Derivative Assets	0.1	129.4
Derivative Liabilities	0.5	214.6
Derivatives Not Designated As Hedging Instruments
Derivatives, Fair Value [Line Items]
Derivative Assets	26.3	31.0
Derivative Liabilities	28.7	28.7
Derivatives Not Designated As Hedging Instruments | Foreign Exchange Contracts | Current – Derivative financial instruments
Derivatives, Fair Value [Line Items]
Derivative Assets	26.3	25.5
Derivative Liabilities	$ 28.7	23.1
Derivatives Not Designated As Hedging Instruments | Foreign Exchange Contracts | Long-term – Derivative financial instruments
Derivatives, Fair Value [Line Items]
Derivative Assets		5.5
Derivative Liabilities		$ 5.6