Derivative Financial Instruments (Fair Value Of Derivative Instruments In Statement Of Financial Position) (Details) - USD ($) $ in Millions	Jun. 30, 2016	Dec. 31, 2015
Derivatives, Fair Value
Derivative assets	$ 154.4	$ 334.0
Derivative liabilities	223.5	517.4
Derivatives Designated As Hedging Instruments | Foreign Exchange Contract
Derivatives, Fair Value
Derivative assets	116.5	307.7
Derivative liabilities	190.6	488.7
Derivatives Designated As Hedging Instruments | Foreign Exchange Contract | Current - Derivative Financial Instruments
Derivatives, Fair Value
Derivative assets	116.0	307.6
Derivative liabilities	189.0	488.2
Derivatives Designated As Hedging Instruments | Foreign Exchange Contract | Long-Term - Derivative Financial Instruments
Derivatives, Fair Value
Derivative assets	0.5	0.1
Derivative liabilities	1.6	0.5
Derivatives Not Designated As Hedging Instruments | Foreign Exchange Contract
Derivatives, Fair Value
Derivative assets	37.9	26.3
Derivative liabilities	32.9	28.7
Derivatives Not Designated As Hedging Instruments | Foreign Exchange Contract | Current - Derivative Financial Instruments
Derivatives, Fair Value
Derivative assets	35.8	26.3
Derivative liabilities	27.5	$ 28.7
Derivatives Not Designated As Hedging Instruments | Foreign Exchange Contract | Long-Term - Derivative Financial Instruments
Derivatives, Fair Value
Derivative assets	2.1
Derivative liabilities	$ 5.4