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Related Party Transactions (Houston Electric and CERC) (Tables) | 12 Months Ended
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Dec. 31, 2024
Related Party Transactions [Abstract] |
Schedule of Money Pool Activity | The table below summarizes CenterPoint Energy money pool activity for the periods presented:
| December 31, 2024 |  | December 31, 2023
| Houston Electric |  | CERC |  | Houston Electric |  | CERC
| (in millions, except interest rates)
Money pool investments (1) | $ | 368 |  |  | $ | — |  |  | $ | 238 |  |  | $ | 1 |
Weighted average interest rate | 4.65 | % |  | — | % |  | 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.
Schedule of Related Party Transactions | Houston Electric and CERC affiliate-related transactions were as follows:
| Year Ended December 31,
| 2024 |  | 2023 |  | 2022
| Houston Electric |  | CERC |  | Houston Electric |  | CERC |  | Houston Electric |  | CERC (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. 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,
| 2024 |  | 2023 |  | 2022
| Houston Electric |  | CERC |  | Houston Electric |  | CERC |  | Houston Electric |  | CERC
| (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,
| 2024 |  | 2023 |  | 2022
| Houston Electric |  | CERC |  | Houston Electric |  | CERC |  | Houston Electric |  | CERC
| (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.

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- Definition Tabular disclosure of related party transactions. Examples of related party transactions include, but are not limited to, transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners and (d) affiliates. + References No definition available. + Details
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