Common Equity - Dividends Restriction (Additional Information) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Preferred Stock, Shares Outstanding	0
Stock Issued During Period, Shares, New Issues	82,321	27,278
OGE Energy [Member]
Retained Earnings, Restricted	$ 930.9
Retained Earnings, Unrestricted	$ 2,400.0
OGE Energy [Member] | Maximum [Member]
Ratio of Consolidated Debt to Consolidated Capitalization	70.00%
Og and E [Member]
Ratio of Consolidated Debt to Consolidated Capitalization	65.00%
Retained Earnings, Restricted	$ 733.3
Retained Earnings, Unrestricted	$ 2,700.0
Stock Issued During Period, Shares, New Issues	0	0	0