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Short-term Borrowings and Long-term Debt (Tables)
 6 Months Ended
Jun. 30, 2024
Debt Disclosure [Abstract]  
Schedule of Line of Credit Facilities The Registrants had the following revolving credit facilities as of June 30, 2024:
Execution
 Date 		RegistrantSize 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
June 30, 2024 (2)
Termination Date
(in millions)
December 6, 2022CenterPoint Energy $2,400 1.500%65.0%(3)59.1%December 6, 2027
December 6, 2022CenterPoint Energy (4)250 1.125%65.0%47.6%December 6, 2027
December 6, 2022Houston Electric300 1.250%67.5%(3)53.0%December 6, 2027
December 6, 2022CERC 1,050 1.125%65.0%38.5%December 6, 2027
Total$4,000 

(1)Based on credit ratings as of June 30, 2024.
(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:

June 30, 2024December 31, 2023
RegistrantLoansLetters
of Credit		Commercial
Paper (2)		Weighted Average Interest RateLoansLetters
of Credit		Commercial
Paper (2)		Weighted Average Interest Rate
(in millions, except weighted average interest rate)
CenterPoint Energy $— $— $897 5.47 %$— $— $1,036 5.54 %
CenterPoint Energy (1)— — — — %— — — — %
Houston Electric— — — — %— — — — %
CERC — 1 — — %— 1 484 5.53 %
Total$— $1 $897 $— $1 $1,520 

(1)This credit facility was issued by SIGECO.
(2)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. Neither Houston Electric nor SIGECO has a commercial paper program.