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Goodwill, Intangible Assets & Impairments
6 Months Ended
Jun. 30, 2013
Goodwill [Abstract]  
Goodwill

7. GOODWILL

GOODWILL           
             
The following tables present goodwill by reportable operating segment for Duke Energy and Duke Energy Ohio.
             
Duke Energy           
             
(in millions)USFE&G Commercial Power International Energy Total
Balance at December 31, 2012           
Goodwill$ 15,950 $ 933 $ 353 $ 17,236
Accumulated impairment charges    (871)     (871)
Balance at December 31, 2012, as adjusted for accumulated impairment charges  15,950   62   353   16,365
Acquisitions (a)  2   2   (5)   (1)
Foreign exchange and other changes  (2)     (17)   (19)
Balance at June 30, 2013           
Goodwill  15,950   935   331   17,216
Accumulated impairment charges    (871)     (871)
Balance at June 30, 2013, as adjusted for accumulated impairment charges$ 15,950 $ 64 $ 331 $ 16,345
             
(a)Amounts represent purchase price adjustments related to the Progress Energy merger at USFE&G, a minor renewables acquisition at Commercial Power and the Ibener acquisition at International Energy. See Note 2 for further information on purchase price adjustments related to the Progress Energy Merger.

Duke Energy Ohio        
          
(in millions)Franchised Electric & Gas Commercial Power Total
Balance at December 31, 2012        
Goodwill$ 1,137 $ 1,188 $ 2,325
Accumulated impairment charges  (216)   (1,188)   (1,404)
Balance at December 31, 2012, as adjusted for accumulated impairment charges  921     921
Foreign exchange and other changes  (1)     (1)
Balance at June 30, 2013        
Goodwill  1,136   1,188   2,324
Accumulated impairment charges  (216)   (1,188)   (1,404)
Balance at June 30, 2013, as adjusted for accumulated impairment charges$ 920 $ $ 920
          

Progress Energy

Progress Energy had Goodwill of $3,655 million within the Franchised Electric operating segment as of June 30, 2013 and December 31, 2012, for which there were no accumulated impairment charges.