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Financial Information by Business Segment (Tables)
3 Months Ended
Mar. 31, 2012
Segment Reporting [Abstract]  
Segment [Tables]
(in millions)PEC PEF Corporate and Other Eliminations Totals
At and for the three months ended March 31, 2012
Revenues              
 Unaffiliated$ 1,085 $ 1,005 $ 2 $ - $ 2,092
 Intersegment  -   -   59   (59)   -
 Total revenues  1,085   1,005   61   (59)   2,092
Ongoing Earnings  60   130   (47)   -   143
Total assets  16,424   14,732   21,248   (16,429)   35,975
                
For the three months ended March 31, 2011
Revenues              
 Unaffiliated$ 1,133 $ 1,032 $ 2 $ - $ 2,167
 Intersegment  -   -   74   (74)   -
 Total revenues  1,133   1,032   76   (74)   2,167
Ongoing Earnings  139   111   (48)   -   202
               
Ongoing to Net Income Attributable to Controlling Interests [Tables]
(in millions)2012 2011
Ongoing Earnings$ 143 $ 202
Tax levelization  (7)   (2)
CVO mark-to-market  8   -
Merger and integration costs, net of tax benefit of $2 and $- (Note 2)  (5)   (14)
Continuing income attributable to noncontrolling interests, net of tax  2   1
Income from continuing operations  141   187
Discontinued operations, net of tax  11   (2)
Net income attributable to noncontrolling interests, net of tax  (2)   (1)
 Net income attributable to controlling interests$ 150 $ 184