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Taxes Other Than Income Taxes (Tables)
9 Months Ended
Sep. 30, 2011
Taxes Other Than Income Taxes 
Taxes other than income taxes included in revenues

 
  Quarter
Ended
September 30,

  Nine Months
Ended
September 30,

 
 
  2011
  2010
  2011
  2010
 
   
 
  (In millions)
 

Constellation Energy (including BGE)

  $ 36.4   $ 31.6   $ 106.6   $ 93.1  

BGE

    20.2     20.4     62.8     61.6