Derivative Financial Instruments (Fair Value Of Derivative Instruments In Statement Of Financial Position) (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Derivatives, Fair Value [Line Items]
Derivative assets	$ 191.4	$ 82.6
Derivative liabilities	181.4	61.5
Derivatives Designated As Hedging Instruments [Member] | Foreign Exchange Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	172.1	34.9
Derivative liabilities	159.5	31.5
Derivatives Designated As Hedging Instruments [Member] | Foreign Exchange Contract [Member] | Current - Derivative Financial Instruments [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	119.1	29.2
Derivative liabilities	115.3	23.2
Derivatives Designated As Hedging Instruments [Member] | Foreign Exchange Contract [Member] | Long-Term - Derivative Financial Instruments [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	53.0	5.7
Derivative liabilities	44.2	8.3
Derivatives Not Designated As Hedging Instruments [Member] | Foreign Exchange Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	19.3	47.7
Derivative liabilities	21.9	30.0
Derivatives Not Designated As Hedging Instruments [Member] | Foreign Exchange Contract [Member] | Current - Derivative Financial Instruments [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	17.2	44.2
Derivative liabilities	19.3	27.2
Derivatives Not Designated As Hedging Instruments [Member] | Foreign Exchange Contract [Member] | Long-Term - Derivative Financial Instruments [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	2.1	3.5
Derivative liabilities	$ 2.6	$ 2.8