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v3.19.1

Operating Segments (Schedule of Segment Reporting Information, by Segment) (Detail) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
Segment Reporting Information [Line Items] |  |  |
Operating revenue | [1] | $ 3,858 | $ 3,466
Net income (loss) |  | (680) | 503
Virginia Electric and Power Company |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenue | [2] | 1,965 | 1,748
Net income (loss) |  | 20 | 184
Dominion Energy Gas Holdings, LLC |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenue | [3] | 511 | 526
Net income (loss) |  | 116 | 166
Intersegment revenue |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenue |  | (220) | (189)
Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenue |  | 3,858 | 3,466
Adjustments/Eliminations |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenue |  |  | 28
Net income (loss) |  | 0 | 0
Eliminations |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenue |  | (220) | (161)
Power Delivery |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenue |  | 598 | 563
Net income (loss) |  | 155 | 156
Power Delivery | Intersegment revenue |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenue |  | 6 | 6
Power Delivery | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenue |  | 604 | 569
Power Delivery | Operating Segments | Virginia Electric and Power Company |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenue |  | 598 | 563
Net income (loss) |  | 154 | 154
Power Generation |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenue |  | 1,745 | 1,860
Net income (loss) |  | 308 | 348
Power Generation | Intersegment revenue |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenue |  | 4 | 2
Power Generation | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenue |  | 1,749 | 1,862
Power Generation | Operating Segments | Virginia Electric and Power Company |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenue |  | 1,396 | 1,400
Net income (loss) |  | 204 | 222
Gas Infrastructure |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenue |  | 1,373 | 1,222
Net income (loss) |  | 359 | 327
Gas Infrastructure | Intersegment revenue |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenue |  | 26 | 6
Gas Infrastructure | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenue |  | 1,399 | 1,228
Gas Infrastructure | Operating Segments | Dominion Energy Gas Holdings, LLC |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenue |  | 511 | 526
Net income (loss) |  | 119 | 167
Southeast Energy |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenue |  | 1,182 |
Net income (loss) |  | 132 |
Southeast Energy | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenue |  | 1,182 |
Corporate and Other |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenue |  | (1,040) | (207)
Net income (loss) |  | (1,634) | (328)
Corporate and Other | Intersegment revenue |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenue |  | 184 | 175
Corporate and Other | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenue |  | (856) | (32)
Corporate and Other | Operating Segments | Virginia Electric and Power Company |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenue |  | (29) | (215)
Net income (loss) |  | (338) | (192)
Corporate and Other | Operating Segments | Dominion Energy Gas Holdings, LLC |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenue |  | 0 | 0
Net income (loss) |  | $ (3) | $ (1)
[1] | See Note 10 for amounts attributable to related parties.
[2] | See Note 19 for amounts attributable to affiliates.
[3] | See Note 19 for amounts attributable to related parties.

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