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Related Party Transactions (Houston Electric and CERC)
 12 Months Ended
Dec. 31, 2024
Related Party Transactions [Abstract]  
Related Party Transactions (Houston Electric and CERC) Related Party Transactions (Houston Electric and CERC)
Houston Electric and CERC participate in CenterPoint Energy’s money pool through which they can borrow or invest on a short-term basis. Funding needs are aggregated and external borrowing or investing is based on the net cash position. The net funding requirements of the CenterPoint Energy money pool are expected to be met with borrowings under CenterPoint Energy’s revolving credit facility or the sale of CenterPoint Energy’s commercial paper. 

The table below summarizes CenterPoint Energy money pool activity for the periods presented:
December 31, 2024December 31, 2023
Houston ElectricCERCHouston ElectricCERC
 (in millions, except interest rates)
Money pool investments (1)
$368 $— $238 $1 
Weighted average interest rate4.65 %— %5.59 %5.59 %

(1)Included in Accounts and notes receivable–affiliated companies in Houston Electric’s and CERC’s respective Consolidated Balance Sheets as of December 31, 2024 and 2023, as applicable.

Houston Electric and CERC affiliate-related transactions were as follows:
Year Ended December 31,
202420232022
Houston ElectricCERCHouston ElectricCERC Houston ElectricCERC (1)
(in millions)
Interest income (expense), net (2)$9 $2 $2 $10 $— $(18)

(1)Includes affiliate-related net interest expense of Indiana Gas and CEOH to reflect the Restructuring.
(2)Interest income is included in Other, net and interest expense is included in Interest expense and other finance charges on Houston Electric’s and CERC’s respective Statements of Consolidated Income.

CenterPoint Energy provides some corporate services to Houston Electric and CERC. The costs of services have been charged directly to Houston Electric and CERC using methods that management believes are reasonable. These methods include usage rates, dedicated asset assignment and proportionate corporate formulas based on operating expenses, assets, gross margin, employees and a composite of assets, gross margin and employees. Houston Electric provides certain services to CERC. These services are billed at actual cost, either directly or as an allocation and include fleet services, shop services, geographic services, surveying and right-of-way services, radio communications, data circuit management and field operations. Additionally, CERC provides certain services to Houston Electric. These services are billed at actual cost, either directly or as an allocation and include line locating and other miscellaneous services. These charges are not necessarily indicative of what would have been incurred had Houston Electric and CERC not been affiliates.
The table below presents amounts charged for these services, which are included primarily in Operation and maintenance expenses on Houston Electric’s and CERC’s respective Statements of Consolidated Income, for the periods presented:
Year Ended December 31,
202420232022
Houston ElectricCERCHouston ElectricCERCHouston ElectricCERC
(in millions)
Corporate service charges$173 $213 $173 $236 $167 $237 
Net affiliate service charges (billings)(5)5 (10)10 15 (15)

The table below presents transactions among Houston Electric, CERC and their parent, Utility Holding, for the periods presented:
Year Ended December 31,
202420232022
Houston ElectricCERCHouston ElectricCERCHouston ElectricCERC
(in millions)
Cash dividends paid to parent$339 $442 $367 $496 $316 $124 
Cash dividend paid to parent related to the sale of the Arkansas and Oklahoma Natural Gas businesses— — — — — 720 
Cash contribution from parent 844 290 885 500 1,143 289 
Net assets acquired in the Restructuring (1)— — — — — 2,345 
Non-cash capital contribution from parent in payment for property, plant and equipment below— — — — 38 54 
Cash paid to parent for property, plant and equipment below— — — — 65 61 
Property, plant and equipment from parent (2)— — — — 103 115 

(1)The Restructuring was a common control transaction that required the recasting of financial information to the earliest period presented. Therefore, the net asset transfer was not reflected during the year ended December 31, 2022 on CERC’s Statements of Consolidated Changes in Equity.
(2)Property, plant and equipment purchased from CenterPoint Energy at its net carrying value on the date of purchase.