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Accumulated Other Comprehensive Income (Tables) | 3 Months Ended
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Mar. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items] |
Schedule of Accumulated Other Comprehensive Income (Loss) | The following table presents Dominion Energy’s changes in AOCI by component, net of tax:
|  | Deferred gains and losses on derivatives- hedging activities |  |  | Unrealized gains and losses on investment securities |  |  | Unrecognized pension and other postretirement benefit costs |  |  | Other comprehensive loss from equity method investees |  |  | Total |
(millions) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Three Months Ended March 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | (302 | ) |  | $ | 747 |  |  | $ | (1,101 | ) |  | $ | (3 | ) |  | $ | (659 | )
Other comprehensive income before reclassifications: gains (losses) |  |  | 111 |  |  |  | (13 | ) |  |  | — |  |  |  | — |  |  |  | 98 |
Amounts reclassified from AOCI: losses(1) |  |  | 8 |  |  |  | 1 |  |  |  | 25 |  |  |  | — |  |  |  | 34 |
Net current period other comprehensive income (loss) |  |  | 119 |  |  |  | (12 | ) |  |  | 25 |  |  |  | — |  |  |  | 132 |
Cumulative-effect of changes in accounting principle |  |  | (64 | ) |  |  | (732 | ) |  |  | (227 | ) |  |  | — |  |  |  | (1,023 | )
Less other comprehensive income attributable to noncontrolling interest |  |  | 1 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 1 |
Ending balance |  | $ | (248 | ) |  | $ | 3 |  |  | $ | (1,303 | ) |  | $ | (3 | ) |  | $ | (1,551 | )
Three Months Ended March 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | (280 | ) |  | $ | 569 |  |  | $ | (1,082 | ) |  | $ | (6 | ) |  | $ | (799 | )
Other comprehensive income before reclassifications: gains |  |  | 43 |  |  |  | 58 |  |  |  | — |  |  |  | 1 |  |  |  | 102 |
Amounts reclassified from AOCI: (gains) losses(1) |  |  | (23 | ) |  |  | (28 | ) |  |  | 13 |  |  |  | — |  |  |  | (38 | )
Net current period other comprehensive income |  |  | 20 |  |  |  | 30 |  |  |  | 13 |  |  |  | 1 |  |  |  | 64 |
Ending balance |  | $ | (260 | ) |  | $ | 599 |  |  | $ | (1,069 | ) |  | $ | (5 | ) |  | $ | (735 | )
(1) | See table below for details about these reclassifications.
Reclassification out of Accumulated Other Comprehensive Income | The following table presents Dominion Energy’s reclassifications out of AOCI by component:
Details about AOCI components |  | Amounts reclassified from AOCI |  |  | Affected line item in the Consolidated Statements of Income
(millions) |  |  |  |  |  |
Three Months Ended March 31, 2018 |  |  |  |  |  |
Deferred (gains) and losses on derivatives-hedging activities: |  |  |  |  |  |
Commodity contracts |  | $ | 12 |  |  | Operating revenue
|  |  | 2 |  |  | Purchased gas
|  |  | (7 | ) |  | Electric fuel and other energy-related purchases
Interest rate contracts |  |  | 12 |  |  | Interest and related charges
Foreign currency contracts |  |  | (8 | ) |  | Other income
Total |  |  | 11 |  |  |
Tax |  |  | (3 | ) |  | Income tax expense
Total, net of tax |  | $ | 8 |  |  |
Unrealized (gains) and losses on investment securities: |  |  |  |  |  |
Realized (gain) loss on sale of securities |  | $ | 1 |  |  | Other income
Total |  |  | 1 |  |  |
Tax |  |  | — |  |  | Income tax expense
Total, net of tax |  | $ | 1 |  |  |
Unrecognized pension and other postretirement benefit costs: |  |  |  |  |  |
Amortization of prior-service costs (credits) |  | $ | (5 | ) |  | Other income
Amortization of actuarial losses |  |  | 31 |  |  | Other income
Total |  |  | 26 |  |  |
Tax |  |  | (1 | ) |  | Income tax expense
Total, net of tax |  | $ | 25 |  |  |
Three Months Ended March 31, 2017 |  |  |  |  |  |
Deferred (gains) and losses on derivatives-hedging activities: |  |  |  |  |  |
Commodity contracts |  | $ | (62 | ) |  | Operating revenue
|  |  | (1 | ) |  | Purchased gas
|  |  | 1 |  |  | Electric fuel and other energy-related purchases
Interest rate contracts |  |  | 11 |  |  | Interest and related charges
Foreign currency contracts |  |  | 14 |  |  | Other income
Total |  |  | (37 | ) |  |
Tax |  |  | 14 |  |  | Income tax expense
Total, net of tax |  | $ | (23 | ) |  |
Unrealized (gains) and losses on investment securities: |  |  |  |  |  |
Realized (gain) loss on sale of securities |  | $ | (53 | ) |  | Other income
Impairment |  |  | 9 |  |  | Other income
Total |  |  | (44 | ) |  |
Tax |  |  | 16 |  |  | Income tax expense
Total, net of tax |  | $ | (28 | ) |  |
Unrecognized pension and other postretirement benefit costs: |  |  |  |  |  |
Amortization of prior-service costs (credits) |  | $ | (4 | ) |  | Other income
Amortization of actuarial losses |  |  | 25 |  |  | Other income
Total |  |  | 21 |  |  |
Tax |  |  | (8 | ) |  | Income tax expense
Total, net of tax |  | $ | 13 |  |  |
Virginia Electric and Power Company |
Accumulated Other Comprehensive Income (Loss) [Line Items] |
Schedule of Accumulated Other Comprehensive Income (Loss) | The following table presents Virginia Power’s changes in AOCI by component, net of tax:
|  | Deferred gains and losses on derivatives- hedging activities |  |  | Unrealized gains and losses on investment securities |  |  | Total |
(millions) |  |  |  |  |  |  |  |  |  |  |  |
Three Months Ended March 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | (12 | ) |  | $ | 74 |  |  | $ | 62 |
Other comprehensive income before reclassifications: gains (losses) |  |  | 5 |  |  |  | — |  |  |  | 5 |
Amounts reclassified from AOCI: (gains) losses |  |  | — |  |  |  | — |  |  |  | — |
Net current period other comprehensive income (loss) |  |  | 5 |  |  |  | — |  |  |  | 5 |
Cumulative-effect of changes in accounting principle |  |  | (3 | ) |  |  | (73 | ) |  |  | (76 | )
Ending balance |  | $ | (10 | ) |  | $ | 1 |  |  | $ | (9 | )
Three Months Ended March 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | (8 | ) |  | $ | 54 |  |  | $ | 46 |
Other comprehensive income before reclassifications: gains |  |  | — |  |  |  | 7 |  |  |  | 7 |
Amounts reclassified from AOCI: (gains)(1) |  |  | — |  |  |  | (3 | ) |  |  | (3 | )
Net current period other comprehensive income |  |  | — |  |  |  | 4 |  |  |  | 4 |
Ending balance |  | $ | (8 | ) |  | $ | 58 |  |  | $ | 50 |
| (1) | See table below for details about these reclassifications.
Reclassification out of Accumulated Other Comprehensive Income | The following table presents Virginia Power’s reclassifications out of AOCI by component:
Details about AOCI components |  | Amounts reclassified from AOCI |  |  | Affected line item in the Consolidated Statements of Income
(millions) |  |  |  |  |  |
Three Months Ended March 31, 2017 |  |  |  |  |  |
Unrealized (gains) and losses on investment securities: |  |  |  |  |  |
Realized (gain) loss on sale of securities |  | $ | (6 | ) |  | Other income
Impairment |  |  | 1 |  |  | Other income
Total |  |  | (5 | ) |  |
Tax |  |  | 2 |  |  | Income tax expense
Total, net of tax |  | $ | (3 | ) |  |
Dominion Energy Gas Holdings, LLC |
Accumulated Other Comprehensive Income (Loss) [Line Items] |
Schedule of Accumulated Other Comprehensive Income (Loss) | The following table presents Dominion Energy Gas’ changes in AOCI by component, net of tax:
|  | Deferred gains and losses on derivatives- hedging activities |  |  | Unrecognized pension costs |  |  | Total |
(millions) |  |  |  |  |  |  |  |  |  |  |  |
Three Months Ended March 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | (23 | ) |  | $ | (75 | ) |  | $ | (98 | )
Other comprehensive income before reclassifications: gains |  |  | 13 |  |  |  | — |  |  |  | 13 |
Amounts reclassified from AOCI: (gains) losses(1) |  |  | (3 | ) |  |  | 1 |  |  |  | (2 | )
Net current period other comprehensive income |  |  | 10 |  |  |  | 1 |  |  |  | 11 |
Cumulative-effect of changes in accounting principle |  |  | (5 | ) |  |  | (21 | ) |  |  | (26 | )
Ending balance |  | $ | (18 | ) |  | $ | (95 | ) |  | $ | (113 | )
Three Months Ended March 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | (24 | ) |  | $ | (99 | ) |  | $ | (123 | )
Other comprehensive income before reclassifications: losses |  |  | (9 | ) |  |  | — |  |  |  | (9 | )
Amounts reclassified from AOCI: losses(1) |  |  | 11 |  |  |  | — |  |  |  | 11 |
Net current period other comprehensive income |  |  | 2 |  |  |  | — |  |  |  | 2 |
Ending balance |  | $ | (22 | ) |  | $ | (99 | ) |  | $ | (121 | )
(1) | See table below for details about these reclassifications.
Reclassification out of Accumulated Other Comprehensive Income | The following table presents Dominion Energy Gas' reclassifications out of AOCI by component:
Details about AOCI components |  | Amounts reclassified from AOCI |  |  | Affected line item in the Consolidated Statements of Income
(millions) |  |  |  |  |  |
Three Months Ended March 31, 2018 |  |  |  |  |  |
Deferred (gains) and losses on derivatives-hedging activities: |  |  |  |  |  |
Commodity contracts |  | $ | 3 |  |  | Operating revenue
Interest rate contracts |  |  | 1 |  |  | Interest and related charges
Foreign currency contracts |  |  | (8 | ) |  | Other income
Total |  |  | (4 | ) |  |
Tax |  |  | 1 |  |  | Income tax expense
Total, net of tax |  | $ | (3 | ) |  |
Unrecognized pension costs: |  |  |  |  |  |
Actuarial losses |  | $ | 2 |  |  | Other income
Total |  |  | 2 |  |  |
Tax |  |  | (1 | ) |  | Income tax expense
Total, net of tax |  | $ | 1 |  |  |
Three Months Ended March 31, 2017 |  |  |  |  |  |
Deferred (gains) and losses on derivatives-hedging activities: |  |  |  |  |  |
Commodity contracts |  | $ | 3 |  |  | Operating revenue
Interest rate contracts |  |  | 1 |  |  | Interest and related charges
Foreign currency contracts |  |  | 14 |  |  | Other income
Total |  |  | 18 |  |  |
Tax |  |  | (7 | ) |  | Income tax expense
Total, net of tax |  | $ | 11 |  |  |
Unrecognized pension costs: |  |  |  |  |  |
Actuarial losses |  | $ | 1 |  |  | Other income
Total |  |  | 1 |  |  |
Tax |  |  | (1 | ) |  | Income tax expense
Total, net of tax |  | $ | — |  |  |

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