XML 80 R58.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Derivatives and Hedge Accounting Activities (Schedule of Offsetting Liabilities) (Details) - USD ($) $ in Millions | Mar. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Offsetting Liabilities [Line Items] |  |
Gross Amounts of Recognized Liabilities | $ 147 | $ 153
Gross Amounts Offset in the Consolidated Balance Sheet | 0 | 0
Net Amounts of Liabilities Presented in the Consolidated Balance Sheet | 147 | 153
Total derivatives, not subject to a master netting or similar arrangement | 3 | 2
Gross Amounts of Recognized Liabilities, Total | 150 | 155
Derivative Liabilities | 150 | 155
Gross Amounts Not Offset in the Consolidated Balance Sheet, Financial Instruments | 59 | 67
Gross Amounts Not Offset in the Consolidated Balance Sheet, Cash Collateral | 21 | 27
Net Amounts | 67 | 59
Commodity | Over-the-counter |  |
Offsetting Liabilities [Line Items] |  |
Gross Amounts of Recognized Liabilities | 21 | 23
Gross Amounts Offset in the Consolidated Balance Sheet | 0 | 0
Net Amounts of Liabilities Presented in the Consolidated Balance Sheet | 21 | 23
Gross Amounts Not Offset in the Consolidated Balance Sheet, Financial Instruments | 6 | 14
Gross Amounts Not Offset in the Consolidated Balance Sheet, Cash Collateral | 2 | 0
Net Amounts | 13 | 9
Commodity | Exchange |  |
Offsetting Liabilities [Line Items] |  |
Gross Amounts of Recognized Liabilities | 61 | 71
Gross Amounts Offset in the Consolidated Balance Sheet | 0 | 0
Net Amounts of Liabilities Presented in the Consolidated Balance Sheet | 61 | 71
Gross Amounts Not Offset in the Consolidated Balance Sheet, Financial Instruments | 42 | 44
Gross Amounts Not Offset in the Consolidated Balance Sheet, Cash Collateral | 19 | 27
Net Amounts | 0 | 0
Interest rate | Over-the-counter |  |
Offsetting Liabilities [Line Items] |  |
Gross Amounts of Recognized Liabilities | 59 | 53
Gross Amounts Offset in the Consolidated Balance Sheet | 0 | 0
Net Amounts of Liabilities Presented in the Consolidated Balance Sheet | 59 | 53
Gross Amounts Not Offset in the Consolidated Balance Sheet, Financial Instruments | 11 | 9
Gross Amounts Not Offset in the Consolidated Balance Sheet, Cash Collateral | 0 | 0
Net Amounts | 48 | 44
Foreign currency | Over-the-counter |  |
Offsetting Liabilities [Line Items] |  |
Gross Amounts of Recognized Liabilities | 6 | 6
Gross Amounts Offset in the Consolidated Balance Sheet | 0 | 0
Net Amounts of Liabilities Presented in the Consolidated Balance Sheet | 6 | 6
Gross Amounts Not Offset in the Consolidated Balance Sheet, Financial Instruments | 0 | 0
Gross Amounts Not Offset in the Consolidated Balance Sheet, Cash Collateral | 0 | 0
Net Amounts | 6 | 6
Virginia Electric and Power Company |  |
Offsetting Liabilities [Line Items] |  |
Gross Amounts of Recognized Liabilities | 30 | 23
Gross Amounts Offset in the Consolidated Balance Sheet | 0 | 0
Net Amounts of Liabilities Presented in the Consolidated Balance Sheet | 30 | 23
Total derivatives, not subject to a master netting or similar arrangement | 3 | 8
Gross Amounts of Recognized Liabilities, Total | 33 | 31
Derivative Liabilities | 33 | 31
Gross Amounts Not Offset in the Consolidated Balance Sheet, Financial Instruments | 1 | 2
Gross Amounts Not Offset in the Consolidated Balance Sheet, Cash Collateral | 2 | 0
Net Amounts | 27 | 21
Virginia Electric and Power Company | Commodity | Over-the-counter |  |
Offsetting Liabilities [Line Items] |  |
Gross Amounts of Recognized Liabilities | 8 | 2
Gross Amounts Offset in the Consolidated Balance Sheet | 0 | 0
Net Amounts of Liabilities Presented in the Consolidated Balance Sheet | 8 | 2
Gross Amounts Not Offset in the Consolidated Balance Sheet, Financial Instruments | 1 | 2
Gross Amounts Not Offset in the Consolidated Balance Sheet, Cash Collateral | 2 | 0
Net Amounts | 5 | 0
Virginia Electric and Power Company | Interest rate | Over-the-counter |  |
Offsetting Liabilities [Line Items] |  |
Gross Amounts of Recognized Liabilities | 22 | 21
Gross Amounts Offset in the Consolidated Balance Sheet | 0 | 0
Net Amounts of Liabilities Presented in the Consolidated Balance Sheet | 22 | 21
Gross Amounts Not Offset in the Consolidated Balance Sheet, Financial Instruments | 0 | 0
Gross Amounts Not Offset in the Consolidated Balance Sheet, Cash Collateral | 0 | 0
Net Amounts | 22 | 21
Dominion Gas Holdings, LLC |  |
Offsetting Liabilities [Line Items] |  |
Gross Amounts of Recognized Liabilities | 7 | 11
Gross Amounts Offset in the Consolidated Balance Sheet | 0 | 0
Net Amounts of Liabilities Presented in the Consolidated Balance Sheet | 7 | 11
Derivative Liabilities | 7 | 11
Gross Amounts Not Offset in the Consolidated Balance Sheet, Financial Instruments | 0 | 0
Gross Amounts Not Offset in the Consolidated Balance Sheet, Cash Collateral | 0 | 0
Net Amounts | 7 | 11
Dominion Gas Holdings, LLC | Commodity | Over-the-counter |  |
Offsetting Liabilities [Line Items] |  |
Gross Amounts of Recognized Liabilities | 1 | 5
Gross Amounts Offset in the Consolidated Balance Sheet | 0 | 0
Net Amounts of Liabilities Presented in the Consolidated Balance Sheet | 1 | 5
Gross Amounts Not Offset in the Consolidated Balance Sheet, Financial Instruments | 0 | 0
Gross Amounts Not Offset in the Consolidated Balance Sheet, Cash Collateral | 0 | 0
Net Amounts | 1 | 5
Dominion Gas Holdings, LLC | Foreign currency | Over-the-counter |  |
Offsetting Liabilities [Line Items] |  |
Gross Amounts of Recognized Liabilities | 6 | 6
Gross Amounts Offset in the Consolidated Balance Sheet | 0 | 0
Net Amounts of Liabilities Presented in the Consolidated Balance Sheet | 6 | 6
Gross Amounts Not Offset in the Consolidated Balance Sheet, Financial Instruments | 0 | 0
Gross Amounts Not Offset in the Consolidated Balance Sheet, Cash Collateral | 0 | 0
Net Amounts | $ 6 | $ 6

X
- Definition Amount of right to receive cash collateral under master netting arrangements that have not been offset against derivative liabilities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226016-175313 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56946850&loc=d3e41678-113959 + Details
Name: | us-gaap_DerivativeCollateralRightToReclaimCash
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4D -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=51814546&loc=SL51823488-111719 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624163-113959 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226000-175313 + Details
Name: | us-gaap_DerivativeFairValueOfDerivativeLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value, after offset of derivative asset, of financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, elected not to be and before offset against a right to receive collateral under a master netting arrangement. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56946850&loc=d3e41678-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226006-175313 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226008-175313 + Details
Name: | us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226008-175313 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13495-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13433-108611 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 + Details
Name: | us-gaap_DerivativeLiabilities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value of asset associated with financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226003-175313 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624163-113959 + Details
Name: | us-gaap_DerivativeLiabilityFairValueGrossAsset
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and elected not to be offset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
Name: | us-gaap_DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value, after effects of master netting arrangements, deduction of liabilities not subject to a master netting arrangement and elected not to be offset, of financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, offset against the right to receive collateral. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226016-175313 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
Name: | us-gaap_DerivativeLiabilityFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value of financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, elected not to be offset, deducted from derivative liabilities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226016-175313 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (d)(1)(i) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
Name: | us-gaap_DerivativeLiabilityNotOffsetPolicyElectionDeduction
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value of financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, not subject to a master netting arrangement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226052-175313 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
Name: | us-gaap_DerivativeLiabilityNotSubjectToMasterNettingArrangement
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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_OffsettingLiabilitiesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_CommodityContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TransactionTypeAxis=us-gaap_OverTheCounterMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TransactionTypeAxis=us-gaap_ExchangeTradedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_ForeignExchangeContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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