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Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2017
Earnings Per Share [Abstract] |
Earnings Per Share Computation | The following table presents the calculation of Dominion Energy’s basic and diluted EPS:
|  | 2017 |  |  | 2016 |  |  | 2015 |
(millions, except EPS) |  |  |  |  |  |  |  |  |
Net income attributable to Dominion Energy |  | $ | 2,999 |  |  | $ | 2,123 |  |  | $ | 1,899 |
Average shares of common stock outstanding – Basic |  |  | 636.0 |  |  |  | 616.4 |  |  |  | 592.4 |
Net effect of dilutive securities(1) |  |  | — |  |  |  | 0.7 |  |  |  | 1.3 |
Average shares of common stock outstanding – Diluted |  |  | 636.0 |  |  |  | 617.1 |  |  |  | 593.7 |
Earnings Per Common Share – Basic |  | $ | 4.72 |  |  | $ | 3.44 |  |  | $ | 3.21 |
Earnings Per Common Share – Diluted |  | $ | 4.72 |  |  | $ | 3.44 |  |  | $ | 3.20 |
(1) | Dilutive securities consist primarily of the 2013 Equity Units for 2016 and 2015. See Note 17 for more information.

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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/2003/role/presentationRef -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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