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Capitalization (Tables)
9 Months Ended
Sep. 30, 2014
Text Block [Abstract]  
Carrying Amounts and Fair Values of Long-Term Debt

The carrying amounts and fair values of long-term debt are:

 

(Millions of Dollars)   September 30, 2014     December 31, 2013  
Long-Term Debt (including current portion)  

Carrying

Amount

    Fair
Value
   

Carrying

Amount

    Fair
Value
 

Con Edison

  $ 11,195      $ 12,696      $ 10,974      $ 12,082   

CECONY

  $ 10,216      $ 11,537      $ 9,841      $ 10,797