Short-Term Debt and Credit Facilities - Additional Information (Details) - USD ($)		Dec. 31, 2022		May 31, 2022	Dec. 31, 2021
Line of Credit Facility [Line Items]
Short-term debt		$ 0			$ 486,900,000
Acceleration of Indebtedness of Credit Facility		100,000,000.0
Nonpayment of Uninsured Judgments		100,000,000.0
Outstanding Intercompany Borrowings		84,100,000
OGE Energy [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Current Borrowing Capacity		$ 550,000,000.0	[1]	$ 550,000,000.0
Ratio of Consolidated Debt to Consolidated Capitalization		65.00%
OGE Energy [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Ratio of Consolidated Debt to Consolidated Capitalization		65.00%
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]	$ 550,000,000.0
Short Term Borrowing Capacity That Has Regulatory Approval		$ 1,000,000,000.0
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 17, 2027. At December 31, 2022, there were $84.1 million in 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.