Financial Instruments (Schedule Of Financial Instrument Assets And (Liabilities) Measured At Fair Value On A Recurring Basis) (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Greek Government Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instrument assets and (liabilities) measured at fair value on a recurring basis	$ 3.5	$ 3.6
Forward Currency Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instrument assets and (liabilities) measured at fair value on a recurring basis	(0.7)	(1.1)
Option Currency Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instrument assets and (liabilities) measured at fair value on a recurring basis	3.0	4.3
Interest Rate Swap Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instrument assets and (liabilities) measured at fair value on a recurring basis	$ 12.0	$ 12.1