CONSOLIDATED STATEMENTS OF CAPITALIZATION (Parenthetical) (USD $) In Millions, except Per Share data, unless otherwise specified			12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Senior Notes [Member] Series Due November 15, 2014 [Member] OGE Energy [Member]	Dec. 31, 2013 Senior Notes [Member] Series Due January 15, 2016 [Member] OG&E [Member]	Dec. 31, 2013 Senior Notes [Member] Series Due July 15, 2017 [Member] OG&E [Member]	Dec. 31, 2013 Senior Notes [Member] Series Due September 1, 2018 [Member] OG&E [Member]	Dec. 31, 2013 Senior Notes [Member] Series Due January 15, 2019 [Member] OG&E [Member]	Dec. 31, 2013 Senior Notes [Member] Series Due July 15, 2027 [Member] OG&E [Member]	Dec. 31, 2013 Senior Notes [Member] Series Due April 15, 2028 [Member] OG&E [Member]	Dec. 31, 2013 Senior Notes [Member] Series Due August 1, 2034 [Member] OG&E [Member]	Dec. 31, 2013 Senior Notes [Member] Series Due January 15, 2036 [Member] OG&E [Member]	Dec. 31, 2013 Senior Notes [Member] Series Due February 1, 2038 [Member] OG&E [Member]	Dec. 31, 2013 Senior Notes [Member] Series Due June 1, 2040 [Member] OG&E [Member]	Dec. 31, 2013 Senior Notes [Member] Senior Notes due May 15, 2041 [Member] OG&E [Member]	Dec. 31, 2013 Senior Notes [Member] Due August 31, 2062 [Member] OG&E [Member]	Dec. 31, 2013 Long-term Debt [Member] OG and E Tinker Debt [Member] OG&E [Member]
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	450	225
Common Stock, Shares, Outstanding	198.5	197.6
Treasury Stock, Shares	0.1	0.1
Debt Instrument, Maturity Date			Nov. 15, 2014	Jan. 15, 2016	Jul. 15, 2017	Sep. 01, 2018	Jan. 15, 2019	Jul. 15, 2027	Apr. 15, 2028	Aug. 01, 2034	Jan. 15, 2036	Feb. 01, 2038	Jun. 01, 2040	May 15, 2041	May 01, 2043	Aug. 31, 2062