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INCOME TAXES
6 Months Ended
Jun. 30, 2011
Income Taxes [Abstract]  
INCOME TAXES

 

9)       INCOME TAXES

 

Income taxes for interim periods ended June 30, 2011 and 2010 have been computed using an estimated annual effective tax rate. This rate is revised, if necessary, at the end of each successive interim period to reflect the current estimate of the annual effective tax rate. The tax benefit for the six months ended June 30, 2011 reflected a benefit in the amount of $19 million related to the determination that the valuation allowance previously established on deferred tax assets related to net operating loss carry forwards was no longer necessary.