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Short-term Borrowings and Long-term Debt (Tables) | 9 Months Ended
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Sep. 30, 2025
Debt Disclosure [Abstract] |
Schedule of Line of Credit Facilities | The Registrants had the following revolving credit facilities as of September 30, 2025:
Registrant |  | Execution Date |  | Size of Facility |  | Draw Rate of SOFR plus (1) |  | Financial Covenant Limit on Debt for Borrowed Money to Capital Ratio |  | Debt for Borrowed Money to Capital Ratio as of September 30, 2025 (2) |  | Termination Date
|  |  |  | (in millions) |  |  |  |  |  |  |  |
CenterPoint Energy |  | December 6, 2022 |  | $ | 2,400 |  |  | 1.500% |  | 65.0% | (3) | 59.8% |  | December 6, 2028
CenterPoint Energy (4) |  | December 6, 2022 |  | 250 |  |  | 1.125% |  | 65.0% |  | 44.9% |  | December 6, 2028
Houston Electric |  | December 6, 2022 |  | 300 |  |  | 1.250% |  | 67.5% | (3) | 55.1% |  | December 6, 2028
CERC |  | December 6, 2022 |  | 1,050 |  |  | 1.125% |  | 65.0% |  | 39.8% |  | December 6, 2028
Total |  |  |  | $ | 4,000 |  |  |  |  |  |  |  |  |
(1)Based on credit ratings as of September 30, 2025. (2)As defined in the revolving credit facility agreements, excluding Securitization Bonds. (3)For CenterPoint Energy and Houston Electric, the financial covenant limit will temporarily increase to 70% if Houston Electric experiences damage from a natural disaster in its service territory and CenterPoint Energy certifies to the administrative agent that Houston Electric has incurred system restoration costs reasonably likely to exceed $100 million in a consecutive 12-month period, all or part of which Houston Electric intends to seek to recover through securitization financing. Such temporary increase in the financial covenant would be in effect from the date CenterPoint Energy delivers its certification until the earliest to occur of (i) the completion of the securitization financing, (ii) the first anniversary of CenterPoint Energy’s certification or (iii) the revocation of such certification. (4)This credit facility was issued by SIGECO. The table below reflects the utilization of the Registrants’ respective revolving credit facilities:
|  | September 30, 2025 |  |  | December 31, 2024
Registrant |  | Loans |  | Letters of Credit |  | Commercial Paper |  | Weighted Average Interest Rate |  |  | Loans |  | Letters of Credit |  | Commercial Paper |  | Weighted Average Interest Rate
|  | (in millions, except weighted average interest rate)
CenterPoint Energy (1) |  | $ | — |  |  | $ | — |  |  | $ | 25 |  |  | 4.19 | % |  |  | $ | — |  |  | $ | — |  |  | $ | 382 |  |  | 4.59 | %
CenterPoint Energy (2) |  | — |  |  | — |  |  | — |  |  | — | % |  |  | — |  |  | — |  |  | — |  |  | — | %
Houston Electric |  | — |  |  | — |  |  | — |  |  | — | % |  |  | — |  |  | — |  |  | — |  |  | — | %
CERC (1) |  | — |  |  | — |  |  | 550 |  |  | 4.19 | % |  |  | — |  |  | — |  |  | 599 |  |  | 4.62 | %
Total |  | $ | — |  |  | $ | — |  |  | $ | 575 |  |  |  |  |  | $ | — |  |  | $ | — |  |  | $ | 981 |  |  |
(1)CenterPoint Energy’s and CERC’s outstanding commercial paper generally have maturities of up to 60 days and 30 days, respectively, and are backstopped by the respective issuer’s long-term revolving credit facility. As of September 30, 2025, CERC had outstanding balances of $280 million in commercial paper included in Current portion of long- term debt on its Consolidated Balance Sheet, as management expects to utilize current assets to repay these obligations. (2)This credit facility was issued by SIGECO.

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- Definition Tabular disclosure of short-term or long-term contractual arrangements with lenders, including letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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