Derivative Financial Instruments (Fair Value Of Derivative Instruments In Statement Of Financial Position) (Details) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Derivatives, Fair Value
Derivative assets	$ 134.8	$ 334.0
Derivative liabilities	216.3	517.4
Derivatives Designated As Hedging Instruments | Foreign Exchange Contract
Derivatives, Fair Value
Derivative assets	103.7	307.7
Derivative liabilities	174.1	488.7
Derivatives Designated As Hedging Instruments | Foreign Exchange Contract | Current - Derivative Financial Instruments
Derivatives, Fair Value
Derivative assets	98.6	307.6
Derivative liabilities	168.5	488.2
Derivatives Designated As Hedging Instruments | Foreign Exchange Contract | Long-Term - Derivative Financial Instruments
Derivatives, Fair Value
Derivative assets	5.1	0.1
Derivative liabilities	5.6	0.5
Derivatives Not Designated As Hedging Instruments | Foreign Exchange Contract
Derivatives, Fair Value
Derivative assets	31.1	26.3
Derivative liabilities	42.2	28.7
Derivatives Not Designated As Hedging Instruments | Foreign Exchange Contract | Current - Derivative Financial Instruments
Derivatives, Fair Value
Derivative assets	29.7	26.3
Derivative liabilities	37.1	$ 28.7
Derivatives Not Designated As Hedging Instruments | Foreign Exchange Contract | Long-Term - Derivative Financial Instruments
Derivatives, Fair Value
Derivative assets	1.4
Derivative liabilities	$ 5.1