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Accumulated Other Comprehensive Income (Tables) | 3 Months Ended
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Mar. 31, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items] |
Schedule of Accumulated Other Comprehensive Income (Loss) | The following table presents Dominion’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 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(1): (gains) losses | (23 | ) | (28 | ) | 13 |  | — |  | (38 | )
Net current-period other comprehensive income | 20 |  | 30 |  | 13 |  | 1 |  | 64 |
Ending balance | $ | (260 | ) | $ | 599 |  | $ | (1,069 | ) | $ | (5 | ) | $ | (735 | )
Three Months Ended March 31, 2016 |  |  |  |  |
Beginning balance | $ | (176 | ) | $ | 504 |  | $ | (797 | ) | $ | (5 | ) | $ | (474 | )
Other comprehensive income before reclassifications: gains | 53 |  | 15 |  | — |  | — |  | 68 |
Amounts reclassified from AOCI(1): (gains) losses | (63 | ) | (2 | ) | 8 |  | — |  | (57 | )
Net current-period other comprehensive income (loss) | (10 | ) | 13 |  | 8 |  | — |  | 11 |
Ending balance | $ | (186 | ) | $ | 517 |  | $ | (789 | ) | $ | (5 | ) | $ | (463 | )
(1) See table below for details about these reclassifications.
Reclassification out of Accumulated Other Comprehensive Income | The following table presents Dominion’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 |  |
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
| (37 | ) |
Tax | 14 |  | Income tax expense
| $ | (23 | ) |
Unrealized (gains) and losses on investment securities: |
Realized (gain) loss on sale of securities | $ | (53 | ) | Other income
Impairment | 9 |  | Other income
| (44 | ) |
Tax | 16 |  | Income tax expense
| $ | (28 | ) |
Unrecognized pension and other postretirement benefit costs: |
Prior service (credit) costs | $ | (4 | ) | Other operations and maintenance
Actuarial (gains) losses | 25 |  | Other operations and maintenance
| 21 |  |
Tax | (8 | ) | Income tax expense
| $ | 13 |  |
Three Months Ended March 31, 2016 |  |
Deferred (gains) and losses on derivatives-hedging activities: |
Commodity contracts | $ | (114 | ) | Operating revenue
| 6 |  | Purchased gas
| 3 |  | Electric fuel and other energy-related purchases
Interest rate contracts | 3 |  | Interest and related charges
| (102 | ) |
Tax | 39 |  | Income tax expense
| $ | (63 | ) |
Unrealized (gains) and losses on investment securities: |
Realized (gain) loss on sale of securities | $ | (10 | ) | Other income
Impairment | 7 |  | Other income
| (3 | ) |
Tax | 1 |  | Income tax expense
| $ | (2 | ) |
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 |  |
Dominion Gas Holdings, LLC |
Accumulated Other Comprehensive Income (Loss) [Line Items] |
Schedule of Accumulated Other Comprehensive Income (Loss) | The following table presents Dominion 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 March 31, 2017 |  |  |
Beginning balance | $ | (24 | ) | $ | (99 | ) | $ | (123 | )
Other comprehensive income before reclassifications: losses | (9 | ) | — |  | (9 | )
Amounts reclassified from AOCI(1): losses | 11 |  | — |  | 11 |
Net current-period other comprehensive income | 2 |  | — |  | 2 |
Ending balance | $ | (22 | ) | $ | (99 | ) | $ | (121 | )
Three Months Ended March 31, 2016 |  |  |
Beginning balance | $ | (17 | ) | $ | (82 | ) | $ | (99 | )
Other comprehensive income before reclassifications: losses | (6 | ) | — |  | (6 | )
Amounts reclassified from AOCI(1): gains | (2 | ) | — |  | (2 | )
Net current-period other comprehensive loss | (8 | ) | — |  | (8 | )
Ending balance | $ | (25 | ) | $ | (82 | ) | $ | (107 | )
(1) | See table below for details about these reclassifications.
Reclassification out of Accumulated Other Comprehensive Income | The following table presents Dominion 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, 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
| 18 |  |
Tax | (7 | ) | Income tax expense
| $ | 11 |  |
Unrecognized pension and other postretirement benefit costs: |  |
Actuarial (gains) losses | $ | 1 |  | Other operations and maintenance
| 1 |  |
Tax | (1 | ) | Income tax expense
| $ | — |  |
Three Months Ended March 31, 2016 |  |
Deferred (gains) and losses on derivatives-hedging activities: |  |
Commodity contracts | $ | (4 | ) | Operating revenue
| (4 | ) |
Tax | 2 |  | Income tax expense
| $ | (2 | ) |
Unrecognized pension and other postretirement benefit costs: |  |
Actuarial (gains) losses | $ | 1 |  | Other operations and maintenance
| 1 |  |
Tax | (1 | ) | Income tax expense
| $ | — |  |

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