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(Loss)/Income Per Share (Tables) | 6 Months Ended
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Jun. 30, 2025
Earnings Per Share [Abstract] |
NRG's basic and diluted (loss)/ income per share | NRG's basic and diluted (loss)/income per share is shown in the following table:
| Three months ended June 30, |  | Six months ended June 30,
(In millions, except per share data) | 2025 |  | 2024 |  | 2025 |  | 2024
Basic (loss)/income per share: |  |  |  |
Net (loss)/income | $ | (104) |  |  | $ | 738 |  |  | $ | 646 |  |  | $ | 1,249 |
Less: Cumulative dividends attributable to Series A Preferred Stock | 17 |  |  | 17 |  |  | 34 |  |  | 34 |
Net (loss)/income available for common stockholders | $ | (121) |  |  | $ | 721 |  |  | $ | 612 |  |  | $ | 1,215 |
Weighted average number of common shares outstanding - basic | 196 |  |  | 208 |  |  | 197 |  |  | 209 |
(Loss)/Income per weighted average common share — basic | $ | (0.62) |  |  | $ | 3.47 |  |  | $ | 3.11 |  |  | $ | 5.81 |
Diluted (loss)/income per share: |  |  |  |
Net (loss)/income | $ | (104) |  |  | $ | 738 |  |  | $ | 646 |  |  | $ | 1,249 |
Less: Cumulative dividends attributable to Series A Preferred Stock | 17 |  |  | 17 |  |  | 34 |  |  | 34 |
Net (loss)/income available for common stockholders | $ | (121) |  |  | $ | 721 |  |  | $ | 612 |  |  | $ | 1,215 |
Weighted average number of common shares outstanding - basic | 196 |  |  | 208 |  |  | 197 |  |  | 209 |
Incremental shares attributable to the issuance of equity compensation (treasury stock method) | — |  |  | 3 |  |  | 2 |  |  | 2 |
Incremental shares attributable to the potential share settlements of the Convertible Senior Notes (if converted method) | — |  |  | 3 |  |  | 4 |  |  | 3 |
Weighted average number of common shares outstanding - dilutive | 196 |  |  | 214 |  |  | 203 |  |  | 214 |
(Loss)/Income per weighted average common share — diluted | $ | (0.62) |  |  | $ | 3.37 |  |  | $ | 3.01 |  |  | $ | 5.68 |

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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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