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Changes in Capital Structure (Tables) | 3 Months Ended
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Mar. 31, 2021
Equity [Abstract] |
Changes in NRG's common shares issued and outstanding | As of March 31, 2021 and December 31, 2020, the Company had 500,000,000 shares of common stock authorized. The following table reflects the changes in NRG's common stock issued and outstanding:
| Issued |  | Treasury |  | Outstanding
Balance as of December 31, 2020 | 423,057,848 |  |  | (178,825,915) |  |  | 244,231,933 |
Shares issued under LTIPs | 461,273 |  |  | — |  |  | 461,273 |
Balance as of March 31, 2021 | 423,519,121 |  |  | (178,825,915) |  |  | 244,693,206 |
Shares issued under LTIPs | 790 |  |  | — |  |  | 790 |
Shares issued under ESPP | — |  |  | 59,967 |  |  | 59,967 |
Balance as of May 6, 2021 | 423,519,911 |  |  | (178,765,948) |  |  | 244,753,963 |

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- Definition Tabular disclosure of the change in common stock outstanding. + References No definition available. + Details
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