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Earnings Per Share (CenterPoint Energy) (Tables) | 9 Months Ended
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Sep. 30, 2025
Earnings Per Share [Abstract] |
Schedule of Basic and Diluted Earnings Per Share | The following table reconciles numerators and denominators of CenterPoint Energy’s basic and diluted earnings per common share:
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2025 |  | 2024 |  | 2025 |  | 2024
| (in millions, except per share and share amounts)
Numerator: |  |  |  |  |  |  |
Net income | $ | 293 |  |  | $ | 193 |  |  | $ | 788 |  |  | $ | 771 |
Denominator: |  |  |  |  |  |  |
Weighted average common shares outstanding – basic | 652,862,000 |  |  | 647,797,000 |  |  | 652,605,000 |  |  | 640,287,000 |
Plus: |  |  |  |  |  |  |
Restricted stock | 2,161,000 |  |  | 417,000 |  |  | 1,460,000 |  |  | 1,074,000 |
Equity forwards | 981,000 |  | — |  |  | 591,000 |  | — |
Convertible notes (1) | 24,000 |  |  | — |  |  | 24,000 |  |  | — |
Weighted average common shares outstanding – diluted | 656,028,000 |  |  | 648,214,000 |  |  | 654,680,000 |  |  | 641,361,000 |
Earnings Per Common Share: |  |  |  |  |  |  |
Basic | $ | 0.45 |  |  | $ | 0.30 |  |  | $ | 1.21 |  |  | $ | 1.20 |
Diluted | $ | 0.45 |  |  | $ | 0.30 |  |  | $ | 1.20 |  |  | $ | 1.20 |
(1)Related to the 2026 Convertible Notes.

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
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