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Investments (Tables) | 6 Months Ended
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Jun. 30, 2017
Gain (Loss) on Investments [Line Items] |
Available-For-Sale Securities | Dominion Energy’s decommissioning trust funds are summarized below:
|  | Amortized Cost |  |  | Total Unrealized Gains(1) |  |  | Total Unrealized Losses(1) |  |  |  | Fair Value |
(millions) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
June 30, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Marketable equity securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. |  | $ | 1,548 |  |  | $ | 1,548 |  |  | $ | — |  |  |  | $ | 3,096 |
Fixed income: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate debt instruments |  |  | 465 |  |  |  | 17 |  |  |  | (1 | ) |  |  |  | 481 |
Government securities |  |  | 1,007 |  |  |  | 28 |  |  |  | (4 | ) |  |  |  | 1,031 |
Common/collective trust funds |  |  | 46 |  |  |  | — |  |  |  | — |  |  |  |  | 46 |
Cost method investments |  |  | 71 |  |  |  | — |  |  |  | — |  |  |  |  | 71 |
Cash equivalents and other(2) |  |  | 10 |  |  |  | — |  |  |  | — |  |  |  |  | 10 |
Total |  | $ | 3,147 |  |  | $ | 1,593 |  |  | $ | (5 | ) | (3) |  | $ | 4,735 |
December 31, 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Marketable equity securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. |  | $ | 1,449 |  |  | $ | 1,408 |  |  | $ | — |  |  |  | $ | 2,857 |
Fixed income: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate debt instruments |  |  | 478 |  |  |  | 13 |  |  |  | (4 | ) |  |  |  | 487 |
Government securities |  |  | 978 |  |  |  | 22 |  |  |  | (8 | ) |  |  |  | 992 |
Common/collective trust funds |  |  | 67 |  |  |  | — |  |  |  | — |  |  |  |  | 67 |
Cost method investments |  |  | 69 |  |  |  | — |  |  |  | — |  |  |  |  | 69 |
Cash equivalents and other(2) |  |  | 12 |  |  |  | — |  |  |  | — |  |  |  |  | 12 |
Total |  | $ | 3,053 |  |  | $ | 1,443 |  |  | $ | (12 | ) | (3) |  | $ | 4,484 |
(1) | Included in AOCI and the nuclear decommissioning trust regulatory liability.
(2) | Includes net pending sales of securities of $7 million and $9 million at June 30, 2017 and December 31, 2016, respectively.
(3) | The fair value of securities in an unrealized loss position was $457 million and $576 million at June 30, 2017 and December 31, 2016, respectively.
Investments Classified by Contractual Maturity Date | The fair value of Dominion Energy’s marketable debt securities held in nuclear decommissioning trust funds at June 30, 2017 by contractual maturity is as follows:
|  | Amount |
(millions) |  |  |  |
Due in one year or less |  | $ | 149 |
Due after one year through five years |  |  | 448 |
Due after five years through ten years |  |  | 362 |
Due after ten years |  |  | 599 |
Total |  | $ | 1,558 |
Marketable Securities | Presented below is selected information regarding Dominion Energy’s marketable equity and debt securities held in nuclear decommissioning trust funds.
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2017 |  |  | 2016 |  |  | 2017 |  |  | 2016 |
(millions) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sales |  | $ | 363 |  |  | $ | 341 |  |  | $ | 1,119 |  |  | $ | 709 |
Realized gains(1) |  |  | 23 |  |  |  | 37 |  |  |  | 117 |  |  |  | 62 |
Realized losses(1) |  |  | 16 |  |  |  | 15 |  |  |  | 36 |  |  |  | 34 |
(1) | Includes realized gains and losses recorded to the nuclear decommissioning trust regulatory liability.
Virginia Electric and Power Company |
Gain (Loss) on Investments [Line Items] |
Available-For-Sale Securities | Virginia Power’s decommissioning trust funds are summarized below:
|  | Amortized Cost |  |  | Total Unrealized Gains(1) |  |  | Total Unrealized Losses(1) |  |  |  | Fair Value |
(millions) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
June 30, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Marketable equity securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. |  | $ | 724 |  |  | $ | 688 |  |  | $ | — |  |  |  | $ | 1,412 |
Fixed income: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate debt instruments |  |  | 252 |  |  |  | 8 |  |  |  | (1 | ) |  |  |  | 259 |
Government securities |  |  | 447 |  |  |  | 14 |  |  |  | (2 | ) |  |  |  | 459 |
Common/collective trust funds |  |  | 16 |  |  |  | — |  |  |  | — |  |  |  |  | 16 |
Cost method investments |  |  | 70 |  |  |  | — |  |  |  | — |  |  |  |  | 70 |
Cash equivalents and other(2) |  |  | 7 |  |  |  | — |  |  |  | — |  |  |  |  | 7 |
Total |  | $ | 1,516 |  |  | $ | 710 |  |  | $ | (3 | ) | (3) |  | $ | 2,223 |
December 31, 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Marketable equity securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. |  | $ | 677 |  |  | $ | 624 |  |  | $ | — |  |  |  | $ | 1,301 |
Fixed income: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate debt instruments |  |  | 274 |  |  |  | 6 |  |  |  | (4 | ) |  |  |  | 276 |
Government securities |  |  | 420 |  |  |  | 9 |  |  |  | (2 | ) |  |  |  | 427 |
Common/collective trust funds |  |  | 26 |  |  |  | — |  |  |  | — |  |  |  |  | 26 |
Cost method investments |  |  | 69 |  |  |  | — |  |  |  | — |  |  |  |  | 69 |
Cash equivalents and other(2) |  |  | 7 |  |  |  | — |  |  |  | — |  |  |  |  | 7 |
Total |  | $ | 1,473 |  |  | $ | 639 |  |  | $ | (6 | ) | (3) |  | $ | 2,106 |
(1) | Included in AOCI and the nuclear decommissioning trust regulatory liability.
(2) | Includes pending sales of securities of $7 million at both June 30, 2017 and December 31, 2016.
(3) | The fair value of securities in an unrealized loss position was $219 million and $287 million at June 30, 2017 and December 31, 2016, respectively.
Investments Classified by Contractual Maturity Date | The fair value of Virginia Power’s marketable debt securities held in nuclear decommissioning trust funds at June 30, 2017 by contractual maturity is as follows:
|  | Amount |
(millions) |  |  |  |
Due in one year or less |  | $ | 48 |
Due after one year through five years |  |  | 209 |
Due after five years through ten years |  |  | 182 |
Due after ten years |  |  | 295 |
Total |  | $ | 734 |
Marketable Securities | Presented below is selected information regarding Virginia Power’s marketable equity and debt securities held in nuclear decommissioning trust funds.
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2017 |  |  | 2016 |  |  | 2017 |  |  | 2016 |
(millions) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sales |  | $ | 168 |  |  | $ | 154 |  |  | $ | 498 |  |  | $ | 347 |
Realized gains(1) |  |  | 10 |  |  |  | 18 |  |  |  | 55 |  |  |  | 30 |
Realized losses(1) |  |  | 8 |  |  |  | 7 |  |  |  | 18 |  |  |  | 17 |
(1) | Includes realized gains and losses recorded to the nuclear decommissioning trust regulatory liability.

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