Legal Matters and Contingencies (Details) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2011 USD ($)	Jun. 30, 2011 EUR (€)	Jun. 30, 2011
Legal Matters and Contingencies (Textuals) [Abstract]
Number of participants in U.N Oil-for-Food Program			93
Penalty charges by Spanish Regulatory Commission	$ 3.9	€ 2.7