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Equity (Tables) | 9 Months Ended
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Sep. 30, 2024
Equity [Abstract] |
Schedule of Dividends Declared | Dividends Declared and Paid (CenterPoint Energy) CenterPoint Energy declared and paid dividends on its Common Stock as follows during the periods indicated 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,
|  | 2024 |  | 2023 |  | 2024 |  | 2023 |  | 2024 |  | 2023 |  | 2024 |  | 2023
Common Stock |  | $ | 0.410 |  |  | $ | 0.390 |  |  | $ | 0.610 |  |  | $ | 0.580 |  |  | $ | 0.200 |  |  | $ | 0.190 |  |  | $ | 0.600 |  |  | $ | 0.570 |
Series A Preferred Stock (1) |  | — |  |  | 30.625 |  |  | — |  |  | 30.625 |  |  | — |  |  | 30.625 |  |  | — |  |  | 61.250 |
(1)On September 1, 2023, CenterPoint Energy redeemed all 800,000 outstanding shares of its Series A Preferred Stock, in whole for cash at a redemption price of $1,000 per share, plus any accumulated and unpaid dividends thereon to, but excluding, the redemption date.
Schedule of Dividend Requirement on Preferred Stock | Income Allocated to Series A Preferred Shareholders (CenterPoint Energy)
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2024 |  | 2023 |  | 2024 |  | 2023
| (in millions)
Series A Preferred Stock (1) | $ | — |  |  | $ | 26 |  |  | $ | — |  |  | $ | 50 |
Total income allocated to preferred shareholders | $ | — |  |  | $ | 26 |  |  | $ | — |  |  | $ | 50 |
(1)On September 1, 2023, CenterPoint Energy redeemed all 800,000 outstanding shares of its Series A Preferred Stock, in whole for cash at a redemption price of $1,000 per share, plus any accumulated and unpaid dividends thereon to, but excluding, the redemption date.
Schedule of Accumulated Other Comprehensive Income (Loss) | Changes in accumulated comprehensive income (loss) are as follows:
| Three Months Ended September 30,
| 2024 |  | 2023
| CenterPoint Energy |  |  |  | CERC |  | CenterPoint Energy |  |  |  | CERC
| (in millions)
Beginning Balance | $ | (30) |  |  |  |  | $ | 15 |  |  | $ | (32) |  |  |  |  | $ | 15 |
Other comprehensive income before reclassifications: |  |  |  |  |  |  |  |  |  |  |
Net deferred gain from cash flow hedges | — |  |  |  |  | — |  |  | 2 |  |  |  |  | — |
Amounts reclassified from accumulated other comprehensive income (loss): |  |  |  |  |  |  |  |  |  |  |
Prior service cost (1) | — |  |  |  |  | — |  |  | 1 |  |  |  |  | — |
Actuarial losses (1) | 1 |  |  |  |  | — |  |  | — |  |  |  |  | — |
Reclassification of deferred loss from cash flow hedges realized in net income | (1) |  |  |  |  | — |  |  | — |  |  |  |  | — |
Other comprehensive income | — |  |  |  |  | — |  |  | 3 |  |  |  |  | — |
Ending Balance | $ | (30) |  |  |  |  | $ | 15 |  |  | $ | (29) |  |  |  |  | $ | 15 |
| Nine Months Ended September 30,
| 2024 |  | 2023
| CenterPoint Energy |  |  |  | CERC |  | CenterPoint Energy |  |  |  | CERC
| (in millions)
Beginning Balance | $ | (35) |  |  |  |  | $ | 16 |  |  | $ | (31) |  |  |  |  | $ | 16 |
Other comprehensive income (loss) before reclassifications: |  |  |  |  |  |  |  |  |  |  |
Remeasurement of pension and other postretirement plans | (2) |  |  |  |  | — |  |  | — |  |  |  |  | — |
Net deferred gain from cash flow hedges | 4 |  |  |  |  | — |  |  | 2 |  |  |  |  | — |
Amounts reclassified from accumulated other comprehensive income (loss): |  |  |  |  |  |  |  |  |  |  |
Prior service cost (benefit) (1) | 2 |  |  |  |  | — |  |  | — |  |  |  |  | (1) |
Actuarial losses (gain) (1) | 2 |  |  |  |  | (1) |  |  | — |  |  |  |  | — |
Reclassification of deferred loss from cash flow hedges realized in net income | (1) |  |  |  |  | — |  |  | — |  |  |  |  | — |
Other comprehensive income (loss) | 5 |  |  |  |  | (1) |  |  | 2 |  |  |  |  | (1) |
Ending Balance | $ | (30) |  |  |  |  | $ | 15 |  |  | $ | (29) |  |  |  |  | $ | 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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