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Short-Term Debt and Credit Facilities - Additional Information (Details) - USD ($)
Sep. 30, 2023
Dec. 31, 2022
Line of Credit Facility [Line Items]    
Short-term debt $ 411,400,000 $ 0
OG&E [Member]    
Line of Credit Facility [Line Items]    
Short-term debt 0 $ 0
Short Term Borrowing Capacity That Has Regulatory Approval $ 1,000,000,000