v3.25.3
Fair Value Measurements (Tables)
 9 Months Ended
Sep. 30, 2025
Fair Value Disclosures [Abstract]  
Schedule of Fair Value, Assets and Liabilities Measured on a Recurring Basis
The following tables present information about the Registrants’ assets and liabilities measured at fair value on a recurring basis as of September 30, 2025 and December 31, 2024 and indicate the fair value hierarchy of the valuation techniques utilized by the Registrants to determine such fair value.

CenterPoint Energy
September 30, 2025December 31, 2024
Level 1
Level 2Level 3Total
Level 1
Level 2Level 3Total
Assets(in millions)
Equity securities$579 $— $— $579 $561 $— $— $561 
Investments, including money market funds (1)22 — — 22 22 — — 22 
Total assets$601 $— $— $601 $583 $— $— $583 
Liabilities    
Indexed debt securities derivative$— $635 $— $635 $— $619 $— $619 
Total liabilities$— $635 $— $635 $— $619 $— $619 

Houston Electric
September 30, 2025December 31, 2024
Level 1
Level 2Level 3Total
Level 1
Level 2Level 3Total
Assets(in millions)
Investments, including money market funds (1)$5 $— $— $5 $5 $— $— $5 
Total assets$5 $— $— $5 $5 $— $— $5 

CERC
September 30, 2025December 31, 2024
Level 1
Level 2Level 3Total
Level 1
Level 2Level 3Total
Assets(in millions)
Investments, including money market funds (1)$16 $— $— $16 $15 $— $— $15 
Total assets$16 $— $— $16 $15 $— $— $15 

(1)Included in Prepaid expenses and other current assets in the respective Condensed Consolidated Balance Sheets.
Schedule of Estimated Fair Value of Financial Instruments, Debt Instruments
The fair values of cash and cash equivalents and investments in equity securities measured at fair value are estimated to be approximately equivalent to carrying amounts and have been excluded from the table below. Additionally, CenterPoint Energy’s ZENS indexed debt securities derivative is stated at fair value and is excluded from the table below. The fair value of each debt instrument included below is determined by multiplying the principal amount of each debt instrument by a
combination of historical trading prices and comparable issue data. These liabilities, which are not measured at fair value in the Registrants’ Condensed Consolidated Balance Sheets, but for which the fair value is disclosed, would be classified as Level 2 in the fair value hierarchy.

 September 30, 2025December 31, 2024
CenterPoint Energy (1)
Houston Electric (1)
CERCCenterPoint Energy (1)
Houston Electric
CERC
Long-term debt, including current maturities(in millions)
Carrying amount$22,303 $10,311 $4,707 $20,961 $8,822 $5,184 
Fair value21,667 9,516 4,704 19,597 7,746 5,032 
(1)Includes Securitization Bonds, as applicable, and Short-term borrowings.