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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - SCEG (USD $)
In Millions
9 Months Ended
Sep. 30, 2010
Sep. 30, 2011
Dec. 31, 2010
Amortization of deferred employee benefit plan costs, tax$ 1  
Accumulated other comprehensive loss 84.646.6
SOUTH CAROLINA ELECTRIC & GAS COMPANY
   
Amortization of deferred employee benefit plan costs, tax1  
Accumulated other comprehensive loss $ 2.5$ 2.7