Derivative Financial Instruments (Derivative Instrument Gains And Losses) (Details) (USD $) In Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Derivative instrument - income statement impact	$ (34.6)	$ 177.1	$ (132.7)	$ 237.1
Qualifying Hedges [Member]
Derivative instrument - income statement impact	(4.1)	9.3	(13.7)	9.3
Qualifying Hedges [Member] | Foreign Currency Forward Exchange - Cash Flow Hedges [Member] | Other Income [Member]
Derivative instrument - income statement impact	(4.1)	9.3	(13.7)	9.3
Non-Qualifying Hedges [Member]
Derivative instrument - income statement impact	(30.5)	167.8	(119.0)	227.8
Non-Qualifying Hedges [Member] | Cross Currency Swaps [Member] | Other Income [Member]
Derivative instrument - income statement impact	(4.0)	103.8	(45.0)	113.1
Non-Qualifying Hedges [Member] | Interest Rate Swaps [Member] | Other Income [Member]
Derivative instrument - income statement impact	(11.1)	(30.7)	(5.2)	(50.1)
Non-Qualifying Hedges [Member] | Foreign Currency Forward Exchange Contracts [Member] | Other Income [Member]
Derivative instrument - income statement impact	$ (15.4)	$ 94.7	$ (68.8)	$ 164.8