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Short-Term Debt and Credit Facilities (Tables)
3 Months Ended
Mar. 31, 2022
Short-term Debt [Abstract]  
Schedule of Line of Credit Facilities [Table Text Block]
The following table presents information regarding the Registrants' revolving credit agreements at March 31, 2022.
 AggregateAmountWeighted-Average 
EntityCommitment Outstanding (A)Interest RateExpiration
(In millions)  
OGE Energy (B)$550.0 $549.0 1.14 %(E)December 17, 2026
OG&E (C)(D)550.0 182.9 1.11 %(E)December 17, 2026
Total$1,100.0 $731.9 1.14 %
(A)Includes direct borrowings under the revolving credit agreements, commercial paper borrowings and letters of credit at March 31, 2022.
(B)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.
(C)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.  
(D)OG&E has an intercompany borrowing agreement with OGE Energy whereby OG&E has access to up to $350.0 million of OGE Energy's revolving credit amount. This agreement has a termination date of December 17, 2026. At March 31, 2022, there were $48.7 million in intercompany borrowings under this agreement.
(E)Represents the weighted-average interest rate for the outstanding borrowings under the revolving credit agreements, commercial paper borrowings and letters of credit.