XML 54 R33.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Accumulated Other Comprehensive Income (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2017
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 Income (Loss) From Equity Method Investee |  |  | Total |
(millions) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Three Months Ended June 30, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | (260 | ) |  | $ | 599 |  |  | $ | (1,069 | ) |  | $ | (5 | ) |  | $ | (735 | )
Other comprehensive income before reclassifications: gains |  |  | 28 |  |  |  | 35 |  |  |  | — |  |  |  | 1 |  |  |  | 64 |
Amounts reclassified from AOCI(1): (gains) losses |  |  | (18 | ) |  |  | (4 | ) |  |  | 11 |  |  |  | — |  |  |  | (11 | )
Net current-period other comprehensive income |  |  | 10 |  |  |  | 31 |  |  |  | 11 |  |  |  | 1 |  |  |  | 53 |
Ending balance |  | $ | (250 | ) |  | $ | 630 |  |  | $ | (1,058 | ) |  | $ | (4 | ) |  | $ | (682 | )
Three Months Ended June 30, 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | (186 | ) |  | $ | 517 |  |  | $ | (789 | ) |  | $ | (5 | ) |  | $ | (463 | )
Other comprehensive income before reclassifications: gains (losses) |  |  | (11 | ) |  |  | 26 |  |  |  | — |  |  |  | (1 | ) |  |  | 14 |
Amounts reclassified from AOCI(1): (gains) losses |  |  | (44 | ) |  |  | (8 | ) |  |  | 8 |  |  |  | — |  |  |  | (44 | )
Net current-period other comprehensive income (loss) |  |  | (55 | ) |  |  | 18 |  |  |  | 8 |  |  |  | (1 | ) |  |  | (30 | )
Ending balance |  | $ | (241 | ) |  | $ | 535 |  |  | $ | (781 | ) |  | $ | (6 | ) |  | $ | (493 | )
Six Months Ended June 30, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | (280 | ) |  | $ | 569 |  |  | $ | (1,082 | ) |  | $ | (6 | ) |  | $ | (799 | )
Other comprehensive income before reclassifications: gains |  |  | 71 |  |  |  | 93 |  |  |  | — |  |  |  | 2 |  |  |  | 166 |
Amounts reclassified from AOCI(1): (gains) losses |  |  | (41 | ) |  |  | (32 | ) |  |  | 24 |  |  |  | — |  |  |  | (49 | )
Net current-period other comprehensive income |  |  | 30 |  |  |  | 61 |  |  |  | 24 |  |  |  | 2 |  |  |  | 117 |
Ending balance |  | $ | (250 | ) |  | $ | 630 |  |  | $ | (1,058 | ) |  | $ | (4 | ) |  | $ | (682 | )
Six Months Ended June 30, 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | (176 | ) |  | $ | 504 |  |  | $ | (797 | ) |  | $ | (5 | ) |  | $ | (474 | )
Other comprehensive income before reclassifications: gains (losses) |  |  | 42 |  |  |  | 41 |  |  |  | — |  |  |  | (1 | ) |  |  | 82 |
Amounts reclassified from AOCI(1): (gains) losses |  |  | (107 | ) |  |  | (10 | ) |  |  | 16 |  |  |  | — |  |  |  | (101 | )
Net current-period other comprehensive income (loss) |  |  | (65 | ) |  |  | 31 |  |  |  | 16 |  |  |  | (1 | ) |  |  | (19 | )
Ending balance |  | $ | (241 | ) |  | $ | 535 |  |  | $ | (781 | ) |  | $ | (6 | ) |  | $ | (493 | )
(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 June 30, 2017 |  |  |  |  |  |
Deferred (gains) and losses on derivatives-hedging activities: |  |  |  |  |  |
Commodity contracts |  | $ | (19 | ) |  | Operating revenue
|  |  | (2 | ) |  | Electric fuel and other energy-related purchases
Interest rate contracts |  |  | 11 |  |  | Interest and related charges
Foreign currency contracts |  |  | (19 | ) |  | Other income
|  |  | (29 | ) |  |
Tax |  |  | 11 |  |  | Income tax expense
|  | $ | (18 | ) |  |
Unrealized (gains) and losses on investment securities: |  |  |  |  |  |
Realized (gain) loss on sale of securities |  | $ | (11 | ) |  | Other income
Impairment |  |  | 5 |  |  | Other income
|  |  | (6 | ) |  |
Tax |  |  | 2 |  |  | Income tax expense
|  | $ | (4 | ) |  |
Unrecognized pension and other postretirement benefit costs: |  |  |  |  |  |
Prior service (credit) costs |  | $ | (5 | ) |  | Other operations and maintenance
Actuarial (gains) losses |  |  | 26 |  |  | Other operations and maintenance
|  |  | 21 |  |  |
Tax |  |  | (10 | ) |  | Income tax expense
|  | $ | 11 |  |  |
Three Months Ended June 30, 2016 |  |  |  |  |  |
Deferred (gains) and losses on derivatives-hedging activities: |  |  |  |  |  |
Commodity contracts |  | $ | (87 | ) |  | Operating revenue
|  |  | 2 |  |  | Purchased gas
|  |  | 3 |  |  | Electric fuel and other energy-related purchases
Interest rate contracts |  |  | 8 |  |  | Interest and related charges
Foreign currency contracts |  |  | 2 |  |  | Other income
|  |  | (72 | ) |  |
Tax |  |  | 28 |  |  | Income tax expense
|  | $ | (44 | ) |  |
Unrealized (gains) and losses on investment securities: |  |  |  |  |  |
Realized (gain) loss on sale of securities |  | $ | (20 | ) |  | Other income
Impairment |  |  | 7 |  |  | Other income
|  |  | (13 | ) |  |
Tax |  |  | 5 |  |  | Income tax expense
|  | $ | (8 | ) |  |
Unrecognized pension and other postretirement benefit costs: |  |  |  |  |  |
Prior service (credit) costs |  | $ | (3 | ) |  | Other operations and maintenance
Actuarial (gains) losses |  |  | 17 |  |  | Other operations and maintenance
|  |  | 14 |  |  |
Tax |  |  | (6 | ) |  | Income tax expense
|  | $ | 8 |  |  |
Six Months Ended June 30, 2017 |  |  |  |  |  |
Deferred (gains) and losses on derivatives-hedging activities: |  |  |  |  |  |
Commodity contracts |  | $ | (81 | ) |  | Operating revenue
|  |  | (2 | ) |  | Electric fuel and other energy-related purchases
Interest rate contracts |  |  | 23 |  |  | Interest and related charges
Foreign currency contracts |  |  | (6 | ) |  | Other income
|  |  | (66 | ) |  |
Tax |  |  | 25 |  |  | Income tax expense
|  | $ | (41 | ) |  |
Unrealized (gains) and losses on investment securities: |  |  |  |  |  |
Realized (gain) loss on sale of securities |  | $ | (64 | ) |  | Other income
Impairment |  |  | 14 |  |  | Other income
|  |  | (50 | ) |  |
Tax |  |  | 18 |  |  | Income tax expense
|  | $ | (32 | ) |  |
Unrecognized pension and other postretirement benefit costs: |  |  |  |  |  |
Prior service (credit) costs |  | $ | (9 | ) |  | Other operations and maintenance
Actuarial (gains) losses |  |  | 51 |  |  | Other operations and maintenance
|  |  | 42 |  |  |
Tax |  |  | (18 | ) |  | Income tax expense
|  | $ | 24 |  |  |
Six Months Ended June 30, 2016 |  |  |  |  |  |
Deferred (gains) and losses on derivatives-hedging activities: |  |  |  |  |  |
Commodity contracts |  | $ | (201 | ) |  | Operating revenue
|  |  | 8 |  |  | Purchased gas
|  |  | 6 |  |  | Electric fuel and other energy-related purchases
Interest rate contracts |  |  | 11 |  |  | Interest and related charges
Foreign currency contracts |  |  | 2 |  |  | Other income
|  |  | (174 | ) |  |
Tax |  |  | 67 |  |  | Income tax expense
|  | $ | (107 | ) |  |
Unrealized (gains) and losses on investment securities: |  |  |  |  |  |
Realized (gain) loss on sale of securities |  | $ | (30 | ) |  | Other income
Impairment |  |  | 14 |  |  | Other income
|  |  | (16 | ) |  |
Tax |  |  | 6 |  |  | Income tax expense
|  | $ | (10 | ) |  |
Unrecognized pension and other postretirement benefit costs: |  |  |  |  |  |
Prior service (credit) costs |  | $ | (7 | ) |  | Other operations and maintenance
Actuarial (gains) losses |  |  | 35 |  |  | Other operations and maintenance
|  |  | 28 |  |  |
Tax |  |  | (12 | ) |  | Income tax expense
|  | $ | 16 |  |  |
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 and Other Postretirement Benefit Costs |  |  | Total |
(millions) |  |  |  |  |  |  |  |  |  |  |  |
Three Months Ended June 30, 2017 |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | (22 | ) |  | $ | (99 | ) |  | $ | (121 | )
Other comprehensive income before reclassifications: gains |  |  | 11 |  |  |  | — |  |  |  | 11 |
Amounts reclassified from AOCI(1): (gains) losses |  |  | (12 | ) |  |  | 2 |  |  |  | (10 | )
Net current-period other comprehensive income (loss) |  |  | (1 | ) |  |  | 2 |  |  |  | 1 |
Ending balance |  | $ | (23 | ) |  | $ | (97 | ) |  | $ | (120 | )
Three Months Ended June 30, 2016 |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | (25 | ) |  | $ | (82 | ) |  | $ | (107 | )
Other comprehensive income before reclassifications: losses |  |  | (9 | ) |  |  | — |  |  |  | (9 | )
Amounts reclassified from AOCI(1): losses |  |  | — |  |  |  | 1 |  |  |  | 1 |
Net current-period other comprehensive income (loss) |  |  | (9 | ) |  |  | 1 |  |  |  | (8 | )
Ending balance |  | $ | (34 | ) |  | $ | (81 | ) |  | $ | (115 | )
Six Months Ended June 30, 2017 |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | (24 | ) |  | $ | (99 | ) |  | $ | (123 | )
Other comprehensive income before reclassifications: gains |  |  | 2 |  |  |  | — |  |  |  | 2 |
Amounts reclassified from AOCI(1): (gains) losses |  |  | (1 | ) |  |  | 2 |  |  |  | 1 |
Net current-period other comprehensive income |  |  | 1 |  |  |  | 2 |  |  |  | 3 |
Ending balance |  | $ | (23 | ) |  | $ | (97 | ) |  | $ | (120 | )
Six Months Ended June 30, 2016 |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | (17 | ) |  | $ | (82 | ) |  | $ | (99 | )
Other comprehensive income before reclassifications: losses |  |  | (15 | ) |  |  | — |  |  |  | (15 | )
Amounts reclassified from AOCI(1): (gains) losses |  |  | (2 | ) |  |  | 1 |  |  |  | (1 | )
Net current-period other comprehensive income (loss) |  |  | (17 | ) |  |  | 1 |  |  |  | (16 | )
Ending balance |  | $ | (34 | ) |  | $ | (81 | ) |  | $ | (115 | )
(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 June 30, 2017 |  |  |  |  |  |
Deferred (gains) and losses on derivatives-hedging activities: |  |  |  |  |  |
Commodity contracts |  | $ | (1 | ) |  | Operating revenue
Interest rate contracts |  |  | 1 |  |  | Interest and related charges
Foreign currency contracts |  |  | (19 | ) |  | Other income
|  |  | (19 | ) |  |
Tax |  |  | 7 |  |  | Income tax expense
|  | $ | (12 | ) |  |
Unrecognized pension and other postretirement benefit costs: |  |  |  |  |  |
Actuarial (gains) losses |  | $ | 2 |  |  | Other operations and maintenance
|  |  | 2 |  |  |
Tax |  |  | — |  |  | Income tax expense
|  | $ | 2 |  |  |
Three Months Ended June 30, 2016 |  |  |  |  |  |
Deferred (gains) and losses on derivatives-hedging activities: |  |  |  |  |  |
Foreign currency contracts |  | $ | 2 |  |  | Other income
|  |  | 2 |  |  |
Tax |  |  | (2 | ) |  | Income tax expense
|  | $ | — |  |  |
Unrecognized pension and other postretirement benefit costs: |  |  |  |  |  |
Actuarial (gains) losses |  | $ | 1 |  |  | Other operations and maintenance
|  |  | 1 |  |  |
Tax |  |  | — |  |  | Income tax expense
|  | $ | 1 |  |  |
Six Months Ended June 30, 2017 |  |  |  |  |  |
Deferred (gains) and losses on derivatives-hedging activities: |  |  |  |  |  |
Commodity contracts |  | $ | 3 |  |  | Operating revenue
Interest rate contracts |  |  | 2 |  |  | Interest and related charges
Foreign currency contracts |  |  | (6 | ) |  | Other income
|  |  | (1 | ) |  |
Tax |  |  | — |  |  | Income tax expense
|  | $ | (1 | ) |  |
Unrecognized pension and other postretirement benefit costs: |  |  |  |  |  |
Actuarial (gains) losses |  | $ | 3 |  |  | Other operations and maintenance
|  |  | 3 |  |  |
Tax |  |  | (1 | ) |  | Income tax expense
|  | $ | 2 |  |  |
Six Months Ended June 30, 2016 |  |  |  |  |  |
Deferred (gains) and losses on derivatives-hedging activities: |  |  |  |  |  |
Commodity contracts |  | $ | (4 | ) |  | Operating revenue
Foreign currency contracts |  |  | 2 |  |  | Other income
|  |  | (2 | ) |  |
Tax |  |  | — |  |  | Income tax expense
|  | $ | (2 | ) |  |
Unrecognized pension and other postretirement benefit costs: |  |  |  |  |  |
Actuarial (gains) losses |  | $ | 2 |  |  | Other operations and maintenance
|  |  | 2 |  |  |
Tax |  |  | (1 | ) |  | Income tax expense
|  | $ | 1 |  |  |

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of information about items reclassified out of accumulated other comprehensive income (loss). + References No definition available. + Details
Name: | us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669686-108580 + Details
Name: | us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=d_DominionEnergyGasHoldingsLLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |