Earnings Per Share (CenterPoint Energy) (Details) - USD ($) $ / shares in Units, $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2025 |
Sep. 30, 2024 |
Sep. 30, 2025 |
Sep. 30, 2024 |
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| Numerator: | ||||
| Net income | $ 293 | $ 193 | $ 788 | $ 771 |
| Denominator: | ||||
| Weighted average common shares outstanding - basic (in shares) | 652,862,000 | 647,797,000 | 652,605,000 | 640,287,000 |
| Weighted average common shares outstanding - diluted (in shares) | 656,028,000 | 648,214,000 | 654,680,000 | 641,361,000 |
| Earnings Per Common Share [Abstract] | ||||
| Basic (in dollars per share) | $ 0.45 | $ 0.30 | $ 1.21 | $ 1.20 |
| Diluted (in dollars per share) | $ 0.45 | $ 0.30 | $ 1.20 | $ 1.20 |
| Restricted stock | ||||
| Denominator: | ||||
| Restricted stock (in shares) | 2,161,000 | 417,000 | 1,460,000 | 1,074,000 |
| Equity forwards | ||||
| Denominator: | ||||
| Equity forwards (in shares) | 981,000 | 0 | 591,000 | 0 |
| Convertible Notes | ||||
| Denominator: | ||||
| Convertible notes (in shares) | 24,000 | 0 | 24,000 | 0 |
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- Definition Earnings Per Common Share No definition available.
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- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount after tax of income (loss) from continuing operations attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of convertible debt securities using the if-converted method. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Additional shared included in the calculation of diluted EPS as a result of the potentially dilutive effect of equity forward arrangements using the reverse treasury stock method. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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