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Changes in Capital Structure (Tables) | 9 Months Ended
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Sep. 30, 2021
Equity [Abstract] |
Changes in NRG's common shares issued and outstanding | As of September 30, 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 | 487,413 |  |  | — |  |  | 487,413 |
Shares issued under ESPP | — |  |  | 59,967 |  |  | 59,967 |
Balance as of September 30, 2021 | 423,545,261 |  |  | (178,765,948) |  |  | 244,779,313 |
Shares issued under LTIPs | 1,913 |  |  | — |  |  | 1,913 |
Shares issued under ESPP | — |  |  | 57,425 |  |  | 57,425 |
Balance as of November 4, 2021 | 423,547,174 |  |  | (178,708,523) |  |  | 244,838,651 |

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