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Operating Segments (Tables) | 3 Months Ended
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Mar. 31, 2017
Segment Reporting Information [Line Items] |
Segment Reporting Disclosure Other Information | A description of the operations included in the Companies’ primary operating segments is as follows:
Primary Operating Segment | Description of Operations | Dominion | Virginia Power | Dominion Gas
DVP | Regulated electric distribution | X | X |
| Regulated electric transmission | X | X |
Dominion Generation | Regulated electric fleet | X | X |
| Merchant electric fleet | X |  |
Dominion Energy | Gas transmission and storage | X |  | X
| Gas distribution and storage | X |  | X
| Gas gathering and processing | X |  | X
| LNG import and storage | X |  |
| Nonregulated retail energy marketing | X |  |
Schedule of Segment Reporting Information, by Segment | The following table presents segment information pertaining to Dominion’s operations:
| DVP | Dominion Generation | Dominion Energy | Corporate and Other | Adjustments/Eliminations | Consolidated Total
(millions) |  |  |  |  |  |
Three Months Ended March 31, 2017 |  |  |  |  |  |
Total revenue from external customers | $ | 554 |  | $ | 1,653 |  | $ | 901 |  | $ | 3 |  | $ | 273 |  | $ | 3,384 |
Intersegment revenue | 5 |  | 3 |  | 266 |  | 152 |  | (426 | ) | — |
Total operating revenue | 559 |  | 1,656 |  | 1,167 |  | 155 |  | (153 | ) | 3,384 |
Net income (loss) attributable to Dominion | 125 |  | 261 |  | 263 |  | (17 | ) | — |  | 632 |
Three Months Ended March 31, 2016 |  |  |  |  |  |
Total revenue from external customers | $ | 556 |  | $ | 1,693 |  | $ | 485 |  | $ | 3 |  | $ | 184 |  | $ | 2,921 |
Intersegment revenue | 5 |  | 3 |  | 178 |  | 192 |  | (378 | ) | — |
Total operating revenue | 561 |  | 1,696 |  | 663 |  | 195 |  | (194 | ) | 2,921 |
Net income (loss) attributable to Dominion | 120 |  | 245 |  | 186 |  | (27 | ) | — |  | 524 |
Virginia Electric and Power Company |
Segment Reporting Information [Line Items] |
Schedule of Segment Reporting Information, by Segment | The following table presents segment information pertaining to Virginia Power’s operations:
| DVP | Dominion Generation | Corporate and Other | Consolidated Total
(millions) |  |  |  |
Three Months Ended March 31, 2017 |  |  |  |
Operating revenue | $ | 557 |  | $ | 1,274 |  | $ | — |  | $ | 1,831 |
Net income | 125 |  | 223 |  | 8 |  | 356 |
Three Months Ended March 31, 2016 |  |  |  |
Operating revenue | $ | 557 |  | $ | 1,333 |  | $ | — |  | $ | 1,890 |
Net income (loss) | 118 |  | 166 |  | (21 | ) | 263 |
Dominion Gas Holdings, LLC |
Segment Reporting Information [Line Items] |
Schedule of Segment Reporting Information, by Segment | The following table presents segment information pertaining to Dominion Gas' operations:
| Dominion Energy | Corporate and Other | Consolidated Total
(millions) |  |  |
Three Months Ended March 31, 2017 |  |  |
Operating revenue | $ | 490 |  | $ | — |  | $ | 490 |
Net income (loss) | 109 |  | (1 | ) | 108 |
Three Months Ended March 31, 2016 |  |  |  |  |  |
Operating revenue | $ | 431 |  | $ | — |  | $ | 431 |
Net income (loss) | 103 |  | (5 | ) | 98 |

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