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Long-Term Debt (Tables)
12 Months Ended
Dec. 31, 2011
Long-term Debt, Unclassified [Abstract]  
Schedule of Long-term Debt Instruments [Table Text Block]
OG&E has tax-exempt pollution control bonds with optional redemption provisions that allow the holders to request repayment of the bonds at various dates prior to the maturity.  The bonds, which can be tendered at the option of the holder during the next 12 months, are as follows:
SERIES
DATE DUE
AMOUNT
 
 
(In millions)
0.22% - 0.44%
Garfield Industrial Authority, January 1, 2025
$
47.0

0.20% - 0.44%
Muskogee Industrial Authority, January 1, 2025
32.4

0.24% - 0.50%
Muskogee Industrial Authority, June 1, 2027
56.0

Total (redeemable during next 12 months)
$
135.4