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Operating Segments (Tables) | 12 Months Ended
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Dec. 31, 2016
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 (1) |  | X
| Gas distribution and storage | X |  | X
| Gas gathering and processing | X |  | X
| LNG import and storage | X |  |
| Nonregulated retail energy marketing | X |  |
(1) | Includes remaining producer services activities.
Schedule of Segment Reporting Information, by Segment | The following table presents segment information pertaining to Dominion's operations:
Year Ended December 31, | DVP |  | Dominion Generation |  | Dominion Energy |  | Corporate and Other |  | Adjustments & Eliminations |  | Consolidated Total |
(millions) |  |  |  |  |  |
2016 |  |  |  |  |  |
Total revenue from external customers | $ | 2,210 |  | $ | 6,747 |  | $ | 2,069 |  | $ | (7 | ) | $ | 718 |  | $ | 11,737 |
Intersegment revenue | 23 |  | 10 |  | 697 |  | 609 |  | (1,339 | ) | — |
Total operating revenue | 2,233 |  | 6,757 |  | 2,766 |  | 602 |  | (621 | ) | 11,737 |
Depreciation, depletion and amortization | 537 |  | 662 |  | 330 |  | 30 |  | — |  | 1,559 |
Equity in earnings of equity method investees | — |  | (16 | ) | 105 |  | 22 |  | — |  | 111 |
Interest income | — |  | 74 |  | 34 |  | 36 |  | (78 | ) | 66 |
Interest and related charges | 244 |  | 290 |  | 38 |  | 516 |  | (78 | ) | 1,010 |
Income taxes | 308 |  | 279 |  | 431 |  | (363 | ) | — |  | 655 |
Net income (loss) attributable to Dominion | 484 |  | 1,397 |  | 726 |  | (484 | ) | — |  | 2,123 |
Investment in equity method investees | — |  | 228 |  | 1,289 |  | 44 |  | — |  | 1,561 |
Capital expenditures | 1,320 |  | 2,440 |  | 2,322 |  | 43 |  | — |  | 6,125 |
Total assets (billions) | 15.6 |  | 27.1 |  | 26.0 |  | 10.2 |  | (7.3 | ) | 71.6 |
2015 |  |  |  |  |  |  |  |  |  |  |  |
Total revenue from external customers | $ | 2,091 |  | $ | 7,001 |  | $ | 1,877 |  | $ | (27 | ) | $ | 741 |  | $ | 11,683 |
Intersegment revenue | 20 |  | 15 |  | 695 |  | 554 |  | (1,284 | ) | — |
Total operating revenue | 2,111 |  | 7,016 |  | 2,572 |  | 527 |  | (543 | ) | 11,683 |
Depreciation, depletion and amortization | 498 |  | 591 |  | 262 |  | 44 |  | — |  | 1,395 |
Equity in earnings of equity method investees | — |  | (15 | ) | 60 |  | 11 |  | — |  | 56 |
Interest income | — |  | 64 |  | 25 |  | 13 |  | (44 | ) | 58 |
Interest and related charges | 230 |  | 262 |  | 27 |  | 429 |  | (44 | ) | 904 |
Income taxes | 307 |  | 465 |  | 423 |  | (290 | ) | — |  | 905 |
Net income (loss) attributable to Dominion | 490 |  | 1,120 |  | 680 |  | (391 | ) | — |  | 1,899 |
Investment in equity method investees | — |  | 245 |  | 1,042 |  | 33 |  | — |  | 1,320 |
Capital expenditures | 1,607 |  | 2,190 |  | 2,153 |  | 43 |  | — |  | 5,993 |
Total assets (billions) | 14.7 |  | 25.6 |  | 15.2 |  | 8.9 |  | (5.8 | ) | 58.6 |
2014 |  |  |  |  |  |  |  |  |  |  |  |
Total revenue from external customers | $ | 1,918 |  | $ | 7,135 |  | $ | 2,446 |  | $ | (12 | ) | $ | 949 |  | $ | 12,436 |
Intersegment revenue | 18 |  | 34 |  | 880 |  | 572 |  | (1,504 | ) | — |
Total operating revenue | 1,936 |  | 7,169 |  | 3,326 |  | 560 |  | (555 | ) | 12,436 |
Depreciation, depletion and amortization | 462 |  | 514 |  | 243 |  | 73 |  | — |  | 1,292 |
Equity in earnings of equity method investees | — |  | (18 | ) | 54 |  | 10 |  | — |  | 46 |
Interest income | — |  | 58 |  | 23 |  | 20 |  | (33 | ) | 68 |
Interest and related charges | 205 |  | 240 |  | 11 |  | 770 |  | (33 | ) | 1,193 |
Income taxes | 317 |  | 365 |  | 463 |  | (693 | ) | — |  | 452 |
Net income (loss) attributable to Dominion | 502 |  | 1,061 |  | 717 |  | (970 | ) | — |  | 1,310 |
Capital expenditures | 1,652 |  | 2,466 |  | 1,329 |  | 104 |  | — |  | 5,551 |
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:
Year Ended December 31, | DVP |  | Dominion Generation |  | Corporate and Other |  | Adjustments & Eliminations |  | Consolidated Total |
(millions) |  |  |  |  |
2016 |  |  |  |  |
Operating revenue | $ | 2,217 |  | $ | 5,390 |  | $ | (19 | ) | $ | — |  | $ | 7,588 |
Depreciation and amortization | 537 |  | 488 |  | — |  | — |  | 1,025 |
Interest income | — |  | — |  | — |  | — |  | — |
Interest and related charges | 244 |  | 219 |  | — |  | (2 | ) | 461 |
Income taxes | 307 |  | 524 |  | (104 | ) |  |  | 727 |
Net income (loss) | 482 |  | 909 |  | (173 | ) | — |  | 1,218 |
Capital expenditures | 1,313 |  | 1,336 |  | — |  | — |  | 2,649 |
Total assets (billions) | 15.6 |  | 17.8 |  | — |  | (0.1 | ) | 33.3 |
2015 |  |  |  |  |  |  |  |  |
Operating revenue | $ | 2,099 |  | $ | 5,566 |  | $ | (43 | ) | $ | — |  | $ | 7,622 |
Depreciation and amortization | 498 |  | 453 |  | 2 |  | — |  | 953 |
Interest income | — |  | 7 |  | — |  | — |  | 7 |
Interest and related charges | 230 |  | 210 |  | 4 |  | (1 | ) | 443 |
Income taxes | 308 |  | 437 |  | (86 | ) |  |  | 659 |
Net income (loss) | 490 |  | 750 |  | (153 | ) | — |  | 1,087 |
Capital expenditures | 1,569 |  | 1,120 |  | — |  | — |  | 2,689 |
Total assets (billions) | 14.7 |  | 17.0 |  | — |  | (0.1 | ) | 31.6 |
2014 |  |  |  |  |  |  |  |  |  |
Operating revenue | $ | 1,928 |  | $ | 5,651 |  | $ | — |  | $ | — |  | $ | 7,579 |
Depreciation and amortization | 462 |  | 416 |  | 37 |  | — |  | 915 |
Interest income | — |  | 8 |  | — |  | — |  | 8 |
Interest and related charges | 205 |  | 203 |  | 3 |  | — |  | 411 |
Income taxes | 317 |  | 416 |  | (185 | ) | — |  | 548 |
Net income (loss) | 509 |  | 691 |  | (342 | ) | — |  | 858 |
Capital expenditures | 1,651 |  | 1,456 |  | — |  | — |  | 3,107 |
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:
Year Ended December 31, | Dominion Energy |  | Corporate and Other |  | Consolidated Total |
(millions) |  |  |
2016 |  |  |
Operating revenue | $ | 1,638 |  | $ | — |  | $ | 1,638 |
Depreciation and amortization | 214 |  | (10 | ) | 204 |
Equity in earnings of equity method investees | 21 |  | — |  | 21 |
Interest income | 1 |  | — |  | 1 |
Interest and related charges | 92 |  | 2 |  | 94 |
Income taxes | 237 |  | (22 | ) | 215 |
Net income (loss) | 395 |  | (3 | ) | 392 |
Investment in equity method investees | 98 |  | — |  | 98 |
Capital expenditures | 854 |  | — |  | 854 |
Total assets (billions) | 10.5 |  | 0.6 |  | 11.1 |
2015 |  |  |  |  |
Operating revenue | $ | 1,716 |  | $ | — |  | $ | 1,716 |
Depreciation and amortization | 213 |  | 4 |  | 217 |
Equity in earnings of equity method investees | 23 |  | — |  | 23 |
Interest income | 1 |  | — |  | 1 |
Interest and related charges | 72 |  | 1 |  | 73 |
Income taxes | 296 |  | (13 | ) | 283 |
Net income (loss) | 478 |  | (21 | ) | 457 |
Investment in equity method investees | 102 |  | — |  | 102 |
Capital expenditures | 795 |  | — |  | 795 |
Total assets (billions) | 9.7 |  | 0.6 |  | 10.3 |
2014 |  |  |  |  |  |
Operating revenue | $ | 1,898 |  | $ | — |  | $ | 1,898 |
Depreciation and amortization | 197 |  | — |  | 197 |
Equity in earnings of equity method investees | 21 |  | — |  | 21 |
Interest income | 1 |  | — |  | 1 |
Interest and related charges | 27 |  | — |  | 27 |
Income taxes | 340 |  | (6 | ) | 334 |
Net income (loss) | 521 |  | (9 | ) | 512 |
Capital expenditures | 719 |  | — |  | 719 |

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