Derivative Financial Instruments (Fair Value Of Derivative Instruments In Statement Of Financial Position) (Details) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Derivatives, Fair Value
Derivative assets	$ 277.8	$ 334.0
Derivative liabilities	429.1	517.4
Derivatives Designated As Hedging Instruments | Foreign Exchange Contract
Derivatives, Fair Value
Derivative assets	235.1	307.7
Derivative liabilities	382.4	488.7
Derivatives Designated As Hedging Instruments | Foreign Exchange Contract | Current - Derivative Financial Instruments
Derivatives, Fair Value
Derivative assets	232.0	307.6
Derivative liabilities	381.3	488.2
Derivatives Designated As Hedging Instruments | Foreign Exchange Contract | Long-Term - Derivative Financial Instruments
Derivatives, Fair Value
Derivative assets	3.1	0.1
Derivative liabilities	1.1	0.5
Derivatives Not Designated As Hedging Instruments | Foreign Exchange Contract
Derivatives, Fair Value
Derivative assets	42.7	26.3
Derivative liabilities	46.7	28.7
Derivatives Not Designated As Hedging Instruments | Foreign Exchange Contract | Current - Derivative Financial Instruments
Derivatives, Fair Value
Derivative assets	42.1	26.3
Derivative liabilities	46.7	$ 28.7
Derivatives Not Designated As Hedging Instruments | Foreign Exchange Contract | Long-Term - Derivative Financial Instruments
Derivatives, Fair Value
Derivative assets	$ 0.6