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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

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