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Stockholders' Equity (Tables) | 3 Months Ended
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Mar. 31, 2019
Equity [Abstract] |
Schedule Of Earnings Per Share | The following table presents Duke Energy’s basic and diluted EPS calculations, the weighted average number of common shares outstanding and common share dividends declared.
| Three Months Ended March 31,
(in millions, except per-share amounts) | 2019 |  |  | 2018 |
Income from continuing operations attributable to Duke Energy common stockholders excluding impact of participating securities | $ | 898 |  |  | $ | 619 |
Weighted average shares outstanding – basic and diluted | 727 |  |  | 701 |
Earnings per share from continuing operations attributable to Duke Energy common stockholders |  |  |
Basic and Diluted | $ | 1.24 |  |  | $ | 0.88 |
Potentially dilutive items excluded from the calculation(a) | 2 |  |  | 2 |
Dividends declared per common share | $ | 0.9275 |  |  | $ | 0.89 |
(a) | Performance stock awards were not included in the dilutive securities calculation because the performance measures related to the awards had not been met.

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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