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Related Party Transactions (Houston Electric and CERC) (Tables) | 9 Months Ended
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Sep. 30, 2024
Related Party Transactions [Abstract] |
Schedule of Money Pool Investment and Borrowing | The table below summarizes CenterPoint Energy money pool activity:
| September 30, 2024 |  | December 31, 2023
| Houston Electric |  | CERC |  | Houston Electric |  | CERC
| (in millions, except interest rates)
Money pool investments (borrowings), net (1) | $ | (71) |  |  | $ | — |  |  | $ | 238 |  |  | $ | 1 |
Weighted average interest rate | 4.98 | % |  | 4.98 | % |  | 5.59 | % |  | 5.59 | %
(1)Included in Accounts and notes payable–affiliated companies on Houston Electric’s Condensed Consolidated Balance Sheets as of September 30, 2024 and Accounts and notes receivable–affiliated companies on Houston Electric’s and CERC’s respective Condensed Consolidated Balance Sheets as of December 31, 2023, as applicable.
Schedule of Related Party Transactions | Amounts charged for these services were as follows and are included primarily in Operation and maintenance expenses on the Condensed Statements of Consolidated Income:
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2024 |  | 2023 |  | 2024 |  | 2023
| Houston Electric |  | CERC |  | Houston Electric |  | CERC |  | Houston Electric |  | CERC |  | Houston Electric |  | CERC
| (in millions)
Corporate service charges | $ | 45 |  |  | $ | 50 |  |  | $ | 40 |  |  | $ | 56 |  |  | $ | 124 |  |  | $ | 156 |  |  | $ | 115 |  |  | $ | 162 |
Net affiliate service charges (billings) | (1) |  |  | 1 |  |  | (1) |  |  | 1 |  |  | (4) |  |  | 4 |  |  | (7) |  |  | 7 |
The table below presents transactions among Houston Electric, CERC and their parent, Utility Holding:
|  | Three Months Ended September 30, |  | Nine Months Ended September 30,
|  | 2024 |  | 2023 |  | 2024 |  | 2023
|  | Houston Electric |  | CERC |  | Houston Electric |  | CERC |  | Houston Electric |  | CERC |  | Houston Electric |  | CERC
|  | (in millions)
Cash dividends paid to parent |  | $ | 94 |  |  | $ | 24 |  |  | $ | 79 |  |  | $ | 36 |  |  | $ | 249 |  |  | $ | 270 |  |  | $ | 239 |  |  | $ | 347 |
Cash contribution from parent |  | 94 |  |  | — |  |  | 235 |  |  | — |  |  | 324 |  |  | 290 |  |  | 885 |  |  | 500 |

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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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