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Equity (Tables) | 9 Months Ended
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Sep. 30, 2025
Equity [Abstract] |
Schedule of Dividends Declared And Paid | Dividends Declared and Paid (CenterPoint Energy) CenterPoint Energy’s dividends declared and dividends paid are presented below:
|  | Dividends Declared Per Share |  | Dividends Paid Per Share
|  | Three Months Ended September 30, |  | Nine Months Ended September 30, |  | Three Months Ended September 30, |  | Nine Months Ended September 30,
|  | 2025 |  | 2024 |  | 2025 |  | 2024 |  | 2025 |  | 2024 |  | 2025 |  | 2024
Common Stock |  | $ | 0.440 |  |  | $ | 0.410 |  |  | $ | 0.660 |  |  | $ | 0.610 |  |  | $ | 0.220 |  |  | $ | 0.200 |  |  | $ | 0.660 |  |  | $ | 0.600 |
Schedule of Accumulated Other Comprehensive Income (Loss) | Changes in accumulated comprehensive income (loss) are as follows:
| Three Months Ended September 30,
| 2025 |  | 2024
| CenterPoint Energy |  |  |  | CERC |  | CenterPoint Energy |  |  |  | CERC
| (in millions)
Beginning Balance | $ | (17) |  |  |  |  | $ | 17 |  |  | $ | (30) |  |  |  |  | $ | 15 |
Other comprehensive income (loss) before reclassifications: |  |  |  |  |  |  |  |  |  |  |
Amounts reclassified from accumulated other comprehensive income (loss): |  |  |  |  |  |  |  |  |  |  |
Actuarial losses (1) | (2) |  |  |  |  | (2) |  |  | 1 |  |  |  |  | — |
Reclassification of deferred gain from cash flow hedges realized in net income | — |  |  |  |  | — |  |  | (1) |  |  |  |  | — |
Other comprehensive income | (2) |  |  |  |  | (2) |  |  | — |  |  |  |  | — |
Ending Balance | $ | (19) |  |  |  |  | $ | 15 |  |  | $ | (30) |  |  |  |  | $ | 15 |
| Nine Months Ended September 30,
| 2025 |  | 2024
| CenterPoint Energy |  |  |  | CERC |  | CenterPoint Energy |  |  |  | CERC
| (in millions)
Beginning Balance | $ | (17) |  |  |  |  | $ | 17 |  |  | $ | (35) |  |  |  |  | $ | 16 |
Other comprehensive income (loss) before reclassifications: |  |  |  |  |  |  |  |  |  |  |
Remeasurement of pension and other postretirement plans | — |  |  |  |  | — |  |  | (2) |  |  |  |  | — |
Net deferred gain from cash flow hedges | — |  |  |  |  | — |  |  | 4 |  |  |  |  | — |
Amounts reclassified from accumulated other comprehensive income (loss): |  |  |  |  |  |  |  |  |  |  |
Prior service cost (1) | 1 |  |  |  |  | 1 |  |  | 2 |  |  |  |  | — |
Actuarial losses (gain) (1) | (2) |  |  |  |  | (3) |  |  | 2 |  |  |  |  | (1) |
Reclassification of deferred gain from cash flow hedges realized in net income | (1) |  |  |  |  | — |  |  | (1) |  |  |  |  | — |
Other comprehensive income (loss) | (2) |  |  |  |  | (2) |  |  | 5 |  |  |  |  | (1) |
Ending Balance | $ | (19) |  |  |  |  | $ | 15 |  |  | $ | (30) |  |  |  |  | $ | 15 |
(1)Amounts are included in the computation of net periodic cost and are reflected in Other income, net in each of the Registrants’ respective Condensed Statements of Consolidated Income.

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