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Consolidated Statements of Equity - USD ($) shares in Thousands, $ in Millions | Total | Sun Edison Inc | NRG Energy, Inc | Virginia Electric and Power Company | Dominion Energy Gas Holdings, LLC | Common Units | Convertible Preferred Units | Common Stock | Common Stock Virginia Electric and Power Company | Retained Earnings | Retained Earnings Virginia Electric and Power Company | Accumulated Other Comprehensive Income (Loss) | Accumulated Other Comprehensive Income (Loss) Virginia Electric and Power Company | Accumulated Other Comprehensive Income (Loss) Dominion Energy Gas Holdings, LLC | Total Common Shareholders' Equity | Noncontrolling Interests | Noncontrolling Interests Sun Edison Inc | Noncontrolling Interests NRG Energy, Inc | Noncontrolling Interests Common Units | Noncontrolling Interests Convertible Preferred Units | Other Paid-In Capital Virginia Electric and Power Company | Member Units Dominion Energy Gas Holdings, LLC
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning balance at Dec. 31, 2014 | $ 11,957 |  |  | $ 10,055 | $ 3,566 |  |  | $ 5,876 | $ 5,738 | $ 6,095 | $ 3,154 | $ (416) | $ 50 | $ (86) | $ 11,555 | $ 402 |  |  |  |  | $ 1,113 | $ 3,652
Beginning balance (in shares) at Dec. 31, 2014 |  |  |  |  |  |  |  | 585,000 | 275 |  |  |  |  |  |  |  |  |  |  |  |  |
Net income including noncontrolling interests | 1,923 |  |  |  |  |  |  |  |  | 1,899 |  |  |  |  | 1,899 | 24 |  |  |  |  |  |
Net income attributable to Dominion | 1,899 |  |  | $ 1,087 | 457 |  |  |  |  |  | 1,087 |  |  |  |  |  |  |  |  |  |  | 457
Dominion Energy Midstream's acquisition of interest in Iroquois | 216 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 216 |  |  |  |  |  |
Contributions to Four Brothers and Three Cedars |  | $ 103 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 103 |  |  |  |  |
Distributions |  |  |  |  | (692) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (692)
Acquisition of Four Brothers and Three Cedars | 47 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 47 |  |  |  |  |  |
Sale of interest in merchant solar projects | 205 |  |  |  |  |  |  | $ 26 |  |  |  |  |  |  | 26 | 179 |  |  |  |  |  |
Purchase of Dominion Energy Midstream common units | (25) |  |  |  |  |  |  | (6) |  |  |  |  |  |  | (6) | (19) |  |  |  |  |  |
Issuance of common stock | 786 |  |  |  |  |  |  | $ 786 |  |  |  |  |  |  | 786 |  |  |  |  |  |  |
Issuance of common stock (in shares) |  |  |  | 0 |  |  |  | 11,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock awards (net of change in unearned compensation) | 13 |  |  |  |  |  |  | $ 13 |  |  |  |  |  |  | 13 |  |  |  |  |  |  |
Dividends | (1,536) |  |  | $ (491) |  |  |  |  |  | (1,536) | (491) |  |  |  | (1,536) |  |  |  |  |  |  |
Dominion Energy Midstream distributions | (16) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (16) |  |  |  |  |  |
Other comprehensive income (loss), net of tax | (58) |  |  | (10) | (13) |  |  |  |  |  |  | (58) | (10) | (13) | (58) |  |  |  |  |  |  |
Other | (13) |  |  |  |  |  |  | (15) |  |  |  |  |  |  | (15) | 2 |  |  |  |  |  |
Ending balance at Dec. 31, 2015 | 13,602 |  |  | 10,641 | 3,318 |  |  | $ 6,680 | $ 5,738 | 6,458 | 3,750 | (474) | 40 | (99) | 12,664 | 938 |  |  |  |  | 1,113 | 3,417
Ending Balance (in shares) at Dec. 31, 2015 |  |  |  |  |  |  |  | 596,000 | 275 |  |  |  |  |  |  |  |  |  |  |  |  |
Net income including noncontrolling interests | 2,212 |  |  |  |  |  |  |  |  | 2,123 |  |  |  |  | 2,123 | 89 |  |  |  |  |  |
Net income attributable to Dominion | 2,123 |  |  | $ 1,218 | 392 |  |  |  |  |  | 1,218 |  |  |  |  |  |  |  |  |  |  | 392
Dominion Energy Midstream's acquisition of interest in Iroquois |  |  |  |  |  | $ 482 | $ 490 |  |  |  |  |  |  |  |  |  |  |  | $ 482 | $ 490 |  |
Contributions to Four Brothers and Three Cedars |  | $ 189 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 189 |  |  |  |  |
Distributions |  |  |  |  | (150) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (150)
Sale of interest in merchant solar projects | 139 |  |  |  |  |  |  | $ 22 |  |  |  |  |  |  | 22 | 117 |  |  |  |  |  |
Purchase of Dominion Energy Midstream common units | (17) |  |  |  |  |  |  | (3) |  |  |  |  |  |  | (3) | (14) |  |  |  |  |  |
Issuance of common stock | 2,152 |  |  |  |  |  |  | $ 2,152 |  |  |  |  |  |  | 2,152 |  |  |  |  |  |  |
Issuance of common stock (in shares) |  |  |  | 0 |  |  |  | 32,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock awards (net of change in unearned compensation) | 14 |  |  |  |  |  |  | $ 14 |  |  |  |  |  |  | 14 |  |  |  |  |  |  |
Present value of stock purchase contract payments related to RSNs(1) | (191) |  |  |  |  |  |  | (191) |  |  |  |  |  |  | (191) |  |  |  |  |  |  |
Tax effect of Dominion Energy Questar Pipeline contribution to Dominion Energy Midstream | (116) |  |  |  |  |  |  | (116) |  |  |  |  |  |  | (116) |  |  |  |  |  |  |
Dividends | (1,789) |  |  |  |  |  |  |  |  | (1,727) |  |  |  |  | (1,727) | (62) |  |  |  |  |  |
Other comprehensive income (loss), net of tax | (325) |  |  | $ 6 | (24) |  |  |  |  |  |  | (325) | 6 | (24) | (325) |  |  |  |  |  |  |
Other | (2) |  |  |  |  |  |  | (8) |  |  |  |  |  |  | (8) | 6 |  |  |  |  |  |
Ending balance at Dec. 31, 2016 | 16,840 |  |  | 11,865 | 3,536 |  |  | $ 8,550 | $ 5,738 | 6,854 | 4,968 | (799) | 46 | (123) | 14,605 | 2,235 |  |  |  |  | 1,113 | 3,659
Ending Balance (in shares) at Dec. 31, 2016 |  |  |  |  |  |  |  | 628,000 | 275,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Net income including noncontrolling interests | 3,120 |  |  |  |  |  |  |  |  | 2,999 |  |  |  |  | 2,999 | 121 |  |  |  |  |  |
Net income attributable to Dominion | 2,999 |  |  | $ 1,540 | 615 |  |  |  |  |  | 1,540 |  |  |  |  |  |  |  |  |  |  | 615
Dominion Energy Midstream's acquisition of interest in Iroquois |  |  |  |  |  | $ 18 |  |  |  |  |  |  |  |  |  |  |  |  | $ 18 |  |  |
Contributions to Four Brothers and Three Cedars |  |  | $ 9 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 9 |  |  |  |
Distributions |  |  |  |  | (15) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (15)
Issuance of common stock | 1,302 |  |  |  |  |  |  | $ 1,302 |  |  |  |  |  |  | 1,302 |  |  |  |  |  |  |
Issuance of common stock (in shares) |  |  |  | 0 |  |  |  | 17,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock awards (net of change in unearned compensation) | 22 |  |  |  |  |  |  | $ 22 |  |  |  |  |  |  | 22 |  |  |  |  |  |  |
Dividends | (2,087) |  |  | $ (1,199) |  |  |  |  |  | (1,931) | (1,199) |  |  |  | (1,931) | (156) |  |  |  |  |  |
Other comprehensive income (loss), net of tax | 141 |  |  | 16 | 25 |  |  |  |  |  |  | 140 | 16 | 25 | 140 | 1 |  |  |  |  |  |
Other | 5 |  |  | 2 | 2 |  |  | (9) |  | 14 | 2 |  |  |  | 5 |  |  |  |  |  |  | 2
Ending balance at Dec. 31, 2017 | $ 19,370 |  |  | $ 12,224 | $ 4,163 |  |  | $ 9,865 | $ 5,738 | $ 7,936 | $ 5,311 | $ (659) | $ 62 | $ (98) | $ 17,142 | $ 2,228 |  |  |  |  | $ 1,113 | $ 4,261
Ending Balance (in shares) at Dec. 31, 2017 |  |  |  |  |  |  |  | 645,000 | 275,000 |  |  |  |  |  |  |  |  |  |  |  |  |

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