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Short-Term Debt and Credit Facilities | 3 Months Ended
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Mar. 31, 2022
Short-term Debt [Abstract] |
Short-Term Debt and Credit Facilities | Short-Term Debt and Credit Facilities The Registrants borrow on a short-term basis, as necessary, by the issuance of commercial paper and by borrowings under their revolving credit agreements. OGE Energy also borrows under term credit agreements maturing in one year or less, as necessary. OGE Energy had $731.5 million and $486.9 million of short-term debt at March 31, 2022 and December 31, 2021, respectively. OG&E had $90.3 million and $101.3 million in advances from OGE Energy at March 31, 2022 and December 31, 2021, respectively. The following table presents information regarding the Registrants' revolving credit agreements at March 31, 2022.
| Aggregate | Amount | Weighted-Average |  |  |
Entity | Commitment | Outstanding (A) | Interest Rate |  | Expiration |
| (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. The Registrants' ability to access the commercial paper market could be adversely impacted by a credit ratings downgrade or major market disruptions. Pricing grids associated with the Registrants' credit facilities could cause annual fees and borrowing rates to increase if an adverse rating impact occurs. The impact of any future downgrade could include an increase in the costs of the Registrants' short-term borrowings, but a reduction in the Registrants' credit ratings would not result in any defaults or accelerations. Any future downgrade could also lead to higher long-term borrowing costs and, if below investment grade, would require the Registrants to post collateral or letters of credit. OG&E must obtain regulatory approval from the FERC in order to borrow on a short-term basis. OG&E has the necessary regulatory approvals to incur up to $800.0 million in short-term borrowings at any one time for a two-year period beginning January 1, 2021 and ending December 31, 2022.

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- Definition The entire disclosure for short-term debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -URI http://asc.fasb.org/topic&trid=2208564 + Details
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