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Earnings Per Share (CenterPoint Energy) (Tables) | 12 Months Ended
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Dec. 31, 2023
Earnings Per Share [Abstract] |
Basic and Diluted Earnings Per Share | The following table reconciles numerators and denominators of CenterPoint Energy’s basic and diluted earnings per common share. Basic earnings per common share is determined by dividing Income available to common shareholders - basic by the Weighted average common shares outstanding - basic for the applicable period. Diluted earnings per common share is determined by the inclusion of potentially dilutive common stock equivalent shares that may occur if securities to issue Common Stock were exercised or converted into Common Stock.
| For the Year Ended December 31,
| 2023 |  | 2022 |  | 2021
| (in millions, except per share and share amounts)
Numerator: |  |  |  |  |
Income from continuing operations | $ | 917 |  |  | $ | 1,057 |  |  | $ | 668 |
Less: Preferred stock dividend requirement (Note 12) | 50 |  |  | 49 |  |  | 95 |
Income available to common shareholders from continuing operations - basic and diluted | 867 |  |  | 1,008 |  |  | 573 |
Income available to common shareholders from discontinued operations - basic and diluted | — |  |  | — |  |  | 818 |
Income available to common shareholders - basic and diluted | $ | 867 |  |  | $ | 1,008 |  |  | $ | 1,391 |
Denominator: |  |  |  |  |
Weighted average common shares outstanding - basic | 630,947,000 |  |  | 629,415,000 |  |  | 592,933,000 |
Plus: Incremental shares from assumed conversions: |  |  |  |  |
Restricted stock | 2,232,000 |  |  | 2,931,000 |  |  | 5,181,000 |
Series C Preferred Stock (1) | — |  |  | — |  |  | 11,824,000 |
Weighted average common shares outstanding - diluted | 633,179,000 |  |  | 632,346,000 |  |  | 609,938,000 |
Anti-dilutive Incremental Shares Excluded from Denominator for Diluted Earnings Computation: |  |  |  |  |
Series B Preferred Stock (2) | — |  |  | — |  |  | 23,906,000 |
Earnings per common share: |  |  |  |  |
Basic earnings per common share - continuing operations | $ | 1.37 |  |  | $ | 1.60 |  |  | $ | 0.97 |
Basic earnings per common share - discontinued operations | — |  |  | — |  |  | 1.38 |
Basic Earnings Per Common Share | $ | 1.37 |  |  | $ | 1.60 |  |  | $ | 2.35 |
Diluted earnings per common share - continuing operations | $ | 1.37 |  |  | $ | 1.59 |  |  | $ | 0.94 |
Diluted earnings per common share - discontinued operations | — |  |  | — |  |  | 1.34 |
Diluted Earnings Per Common Share | $ | 1.37 |  |  | $ | 1.59 |  |  | $ | 2.28 |
(1)As of December 31, 2021, all of the outstanding Series C Preferred Stock has been converted into Common Stock. For further information, see Note 12. (2)As of December 31, 2021, all of the outstanding Series B Preferred Stock has been converted into Common Stock. For further information, see Note 12.

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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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