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Equity (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2023
Equity [Abstract] |
Schedule of Dividends Declared | Dividends Declared and Paid (CenterPoint Energy)
|  |  |  |  |  | Dividends Declared Per Share |  |  |  |  | Dividends Paid Per Share
|  |  |  | Three Months Ended March 31, |  |  |  | Three Months Ended March 31,
|  |  |  |  |  | 2023 |  | 2022 |  |  |  |  |  | 2023 |  | 2022
Common Stock |  |  |  |  |  | $ | — |  |  | $ | — |  |  |  |  |  |  | $ | 0.190 |  |  | $ | 0.170 |
Series A Preferred Stock |  |  |  |  |  | — |  |  | — |  |  |  |  |  |  | 30.625 |  |  | 30.625 |
Equity Instrument |  | Declaration Date |  | Record Date |  | Payment Date |  | Per Share
Common Stock |  | April 20, 2023 |  | May 18, 2023 |  | June 8, 2023 |  | $ | 0.1900 |
Schedule of Preferred Stock | Preferred Stock (CenterPoint Energy)
|  | Liquidation Preference Per Share |  | Shares Outstanding as of |  | Outstanding Value as of
|  |  | March 31, 2023 |  | December 31, 2022 |  | March 31, 2023 |  | December 31, 2022
|  | (in millions, except shares and per share amounts)
Series A Preferred Stock |  | $ | 1,000 |  |  | 800,000 |  |  | 800,000 |  |  | $ | 790 |  |  | $ | 790 |
|  |  |  | 800,000 |  |  | 800,000 |  |  | $ | 790 |  |  | $ | 790 |
Schedule of Dividend Requirement on Preferred Stock | Income Allocated to Preferred Shareholders (CenterPoint Energy)
|  |  | Three Months Ended March 31,
|  |  |  |  | 2023 |  | 2022
|  |  |  | (in millions)
Series A Preferred Stock |  |  |  |  | $ | 12 |  |  | $ | 13 |
Total income allocated to preferred shareholders |  |  |  |  | $ | 12 |  |  | $ | 13 |
Schedule of Accumulated Other Comprehensive Income (Loss) | Changes in accumulated comprehensive income (loss) are as follows:
| Three Months Ended March 31,
| 2023 |  | 2022
| CenterPoint Energy |  | Houston Electric |  | CERC |  | CenterPoint Energy |  | Houston Electric |  | CERC
| (in millions)
Beginning Balance | $ | (31) |  |  | $ | — |  |  | $ | 16 |  |  | $ | (64) |  |  | $ | — |  |  | $ | 10 |
Amounts reclassified from accumulated other comprehensive income (loss): |  |  |  |  |  |  |  |  |  |  |
Prior service cost (1) | (1) |  |  | — |  |  | (1) |  |  | — |  |  | — |  |  | — |
Actuarial losses (1) | — |  |  | — |  |  | — |  |  | 1 |  |  | — |  |  | — |
Reclassification of deferred loss from cash flow hedges realized in net income | — |  |  | — |  |  | — |  |  | 1 |  |  | — |  |  | — |
Net current period other comprehensive income (loss) | (1) |  |  | — |  |  | (1) |  |  | 2 |  |  | — |  |  | — |
Ending Balance | $ | (32) |  |  | $ | — |  |  | $ | 15 |  |  | $ | (62) |  |  | $ | — |  |  | $ | 10 |
(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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