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Long-Term Debt (Additional Information) (Details)
1 Months Ended 12 Months Ended
May 31, 2022
USD ($)
Dec. 31, 2022
USD ($)
Jan. 31, 2023
USD ($)
Dec. 31, 2021
USD ($)
Debt Instrument [Line Items]        
Percent of Principal Amount Subject to Optional Tender   100.00%    
Debt Instrument, Maturity Date   Dec. 31, 2027    
Line of Credit Facility, Maximum Borrowing Capacity   $ 1,150,000,000.0    
Long-term Debt, Weighted Average Interest Rate, at Point in Time 3.48%      
OG&E [Member]        
Debt Instrument [Line Items]        
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months   500,000,000.0    
Long-term Debt, Maturities, Repayments of Principal in Year Three   79,400,000    
Long-term Debt, Maturities, Repayments of Principal in Year Five   181,000,000.0    
Line of Credit Facility, Maximum Borrowing Capacity       $ 1,100,000,000
Line of Credit Facility, Current Borrowing Capacity [1],[2]   $ 550,000,000.0    
Maturity [1],[2],[3]   Dec. 17, 2027    
OGE Energy [Member]        
Debt Instrument [Line Items]        
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months   $ 1,000,000,000.0    
Long-term Debt, Maturities, Repayments of Principal in Year Three   129,400,000    
Long-term Debt, Maturities, Repayments of Principal in Year Five   181,000,000.0    
Line of Credit Facility, Current Borrowing Capacity $ 550,000,000.0 $ 550,000,000.0 [4]    
Maturity [3],[4]   Dec. 17, 2027    
OGE Energy [Member] | Series Due August 15, 2028 [Member]        
Debt Instrument [Line Items]        
Long term debt 100,000,000.0      
Line of Credit Facility, Maximum Borrowing Capacity $ 135,000,000.0      
Debt Instrument Maximum Leverage Ratio 0.65      
OGE Energy [Member] | Credit Facility [Member] | Series Due August 15, 2028 [Member]        
Debt Instrument [Line Items]        
Long term debt $ 50,000,000.0      
OGE Energy [Member] | Term Loan [Member]        
Debt Instrument [Line Items]        
Line of Credit Facility, Current Borrowing Capacity [5]   $ 50,000,000.0    
Maturity May 24, 2025 May 24, 2025 [5]    
OGE Energy [Member] | Term Loan [Member] | Series Due August 15, 2028 [Member]        
Debt Instrument [Line Items]        
Long term debt $ 50,000,000.0      
Senior Notes [Member] | OG&E [Member] | Series Due August 15, 2028 [Member]        
Debt Instrument [Line Items]        
Long term debt   $ 400,000,000.0   400,000,000.0
Senior Notes [Member] | OG&E [Member] | Senior Notes due January 15, 2033 [Member]        
Debt Instrument [Line Items]        
Long term debt     $ 450,000,000.0  
Debt Instrument, Interest Rate, Stated Percentage     5.40%  
Debt Instrument, Maturity Date   Jan. 15, 2033    
Senior Notes [Member] | OG&E [Member] | Series Due May 26, 2023 [Member]        
Debt Instrument [Line Items]        
Long term debt   $ 500,000,000.0   500,000,000.0
Debt Instrument, Interest Rate, Stated Percentage   0.553%    
Debt Instrument, Maturity Date   May 26, 2023    
Senior Notes [Member] | OGE Energy [Member] | Series Due May 26, 2023 [Member]        
Debt Instrument [Line Items]        
Long term debt   $ 500,000,000.0   $ 500,000,000.0
Debt Instrument, Interest Rate, Stated Percentage   0.703%    
Debt Instrument, Maturity Date   May 26, 2023    
[1] 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.
[2] 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.
[3] In December 2021, the Registrants entered into unsecured five-year revolving credit agreements totaling $1.1 billion. Each of the revolving credit facilities contained an option, which could be exercised up to two times, to extend the term of the respective facility for an additional year. In December 2022, the Registrants each entered into an amendment to their credit facility that extends the term of each credit facility for one year, until December 2027. Further, each credit facility amendment gives each of the Registrants the option of extending such commitments for up to two additional one-year periods.
[4] 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.
[5] See Note 9 for further information about this revolving credit facility.