Rate Matters and Regulation (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Section 206 Complaint [Member]
Reduction of Revenue	$ 1.0
Oklahoma Corporation Commission [Member]
OG&E's Jurisdictional Revenues	85.00%
Arkansas Public Service Commission [Member]
OG&E's Jurisdictional Revenues	8.00%
Federal Energy Regulatory Commission [Member]
OG&E's Jurisdictional Revenues	7.00%