Derivative Financial Instruments (Schedule Of Notional Amounts Of Outstanding Derivative Positions) (Details) In Millions, unless otherwise specified	Dec. 31, 2012 Brazilian real Foreign exchange rate forward contracts USD ($)	Dec. 31, 2012 Brazilian real Foreign exchange rate forward contracts BRL	Dec. 31, 2012 British pound Foreign exchange rate forward contracts USD ($)	Dec. 31, 2012 British pound Foreign exchange rate forward contracts GBP (£)	Dec. 31, 2012 British pound Foreign exchange instruments embedded in purchase and sale contracts USD ($)	Dec. 31, 2012 British pound Foreign exchange instruments embedded in purchase and sale contracts GBP (£)	Dec. 31, 2012 Canadian dollar Foreign exchange rate forward contracts USD ($)	Dec. 31, 2012 Canadian dollar Foreign exchange rate forward contracts CAD	Dec. 31, 2012 Australian dollar Foreign exchange instruments embedded in purchase and sale contracts USD ($)	Dec. 31, 2012 Australian dollar Foreign exchange instruments embedded in purchase and sale contracts AUD	Dec. 31, 2012 Chinese renminbi Foreign exchange rate forward contracts USD ($)	Dec. 31, 2012 Chinese renminbi Foreign exchange rate forward contracts CNY	Dec. 31, 2012 Euro Foreign exchange rate forward contracts USD ($)	Dec. 31, 2012 Euro Foreign exchange rate forward contracts EUR (€)	Dec. 31, 2012 Euro Foreign exchange instruments embedded in purchase and sale contracts USD ($)	Dec. 31, 2012 Euro Foreign exchange instruments embedded in purchase and sale contracts EUR (€)	Dec. 31, 2012 Kuwaiti dinar Foreign exchange rate forward contracts USD ($)	Dec. 31, 2012 Kuwaiti dinar Foreign exchange rate forward contracts KWD	Dec. 31, 2012 Malaysian ringgit Foreign exchange rate forward contracts USD ($)	Dec. 31, 2012 Malaysian ringgit Foreign exchange rate forward contracts MYR	Dec. 31, 2012 Norwegian krone Foreign exchange rate forward contracts USD ($)	Dec. 31, 2012 Norwegian krone Foreign exchange rate forward contracts NOK	Dec. 31, 2012 Norwegian krone Foreign exchange instruments embedded in purchase and sale contracts USD ($)	Dec. 31, 2012 Norwegian krone Foreign exchange instruments embedded in purchase and sale contracts NOK	Dec. 31, 2012 Russian ruble Foreign exchange rate forward contracts USD ($)	Dec. 31, 2012 Russian ruble Foreign exchange rate forward contracts RUB	Dec. 31, 2012 Singapore dollar Foreign exchange rate forward contracts USD ($)	Dec. 31, 2012 Singapore dollar Foreign exchange rate forward contracts SGD	Dec. 31, 2012 Swiss franc Foreign exchange rate forward contracts USD ($)	Dec. 31, 2012 Swiss franc Foreign exchange rate forward contracts CHF	Dec. 31, 2012 U.S. dollar Foreign exchange rate forward contracts USD ($)
Derivative [Line Items]
Notional amount bought	$ 13.4	27.3			$ 29.7	£ 18.3	$ 32.4	32.1			$ 18.8	117.4	$ 14.5	€ 11.0	$ 32.1	€ 24.4			$ 47.2	144.2	$ 323.4	1,799.8					$ 184.9	225.9	$ 26.6	24.4
Notional amount sold			$ (48.3)	£ (29.7)					$ (26.5)	(25.5)							$ (37.3)	(10.5)					$ (50.7)	(282.0)	$ (16.3)	(497.8)					$ (548.3)