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Credit Facilities and Short-Term Debt - Additional Information (Details) - USD ($) | Dec. 31, 2024 | Dec. 31, 2023
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Line of Credit Facility [Line Items] |  |  |
Short-term debt |  | $ 469,300,000 | $ 499,200,000
Acceleration of Indebtedness of Credit Facility |  | 100,000,000 |
Nonpayment of Uninsured Judgments |  | 100,000,000 |
Outstanding Intercompany Borrowings |  | 200,000 |
OGE Energy [Member] |  |  |
Line of Credit Facility [Line Items] |  |  |
Line of Credit Facility, Current Borrowing Capacity | [1] | $ 550,000,000 |
OGE Energy [Member] | Maximum [Member] |  |  |
Line of Credit Facility [Line Items] |  |  |
Ratio of Consolidated Debt to Consolidated Capitalization |  | 70.00% |
OG&E [Member] |  |  |
Line of Credit Facility [Line Items] |  |  |
Line of Credit Facility, Current Borrowing Capacity | [2],[3] | $ 550,000,000 |
Short Term Borrowing Capacity That Has Regulatory Approval |  | $ 1,000,000,000 |
Ratio of Consolidated Debt to Consolidated Capitalization |  | 65.00% |
[1] | This bank facility is available to back up OGE Energy's commercial paper borrowings and to provide revolving credit borrowings. This bank facility can also be used as a letter of credit facility.
[2] | OG&E has an intercompany borrowing agreement with OGE Energy whereby OG&E has access to up to $450.0 million of OGE Energy's revolving credit amount. This agreement has a termination date of December 18, 2029. At December 31, 2024, there was $0.2 million intercompany borrowings under this agreement.
[3] | This bank facility is available to back up OG&E's commercial paper borrowings and to provide revolving credit borrowings. This bank facility can also be used as a letter of credit facility.

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