XML 98 R76.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Commitments and Contingencies (Guarantees, Surety Bonds and Letters of Credit) (Details) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2017 USD ($)
Guarantor Obligations [Line Items] |  |
Maximum Exposure | $ 5,582 | [1]
Financial Guarantee | Equity Method Investees |  |
Guarantor Obligations [Line Items] |  |
Maximum Exposure | 48 |
Financial Guarantee | Affiliate |  |
Guarantor Obligations [Line Items] |  |
Maximum Exposure | 26 |
Financial Guarantee | Affiliate | Minimum |  |
Guarantor Obligations [Line Items] |  |
Maximum annual future contributions | 4 |
Financial Guarantee | Affiliate | Maximum |  |
Guarantor Obligations [Line Items] |  |
Maximum annual future contributions | 19 |
Commodity Transactions |  |
Guarantor Obligations [Line Items] |  |
Maximum Exposure | 1,941 | [2]
Nuclear Obligations |  |
Guarantor Obligations [Line Items] |  |
Maximum Exposure | 188 | [3]
Solar |  |
Guarantor Obligations [Line Items] |  |
Maximum Exposure | 1,029 | [4]
Other |  |
Guarantor Obligations [Line Items] |  |
Maximum Exposure | 524 | [5]
Surety Bond |  |
Guarantor Obligations [Line Items] |  |
Maximum Exposure | 138 |
Letter of Credit |  |
Guarantor Obligations [Line Items] |  |
Maximum Exposure | 76 |
Virginia Electric and Power Company | Surety Bond |  |
Guarantor Obligations [Line Items] |  |
Maximum Exposure | 62 |
Dominion Gas Holdings, LLC | Surety Bond |  |
Guarantor Obligations [Line Items] |  |
Maximum Exposure | 22 |
Cove Point | Nuclear Obligations |  |
Guarantor Obligations [Line Items] |  |
Maximum Exposure | $ 1,900 | [6]
[1] | Excludes Dominion's guarantee for the construction of a new corporate office property as discussed in Note 22 to the Consolidated Financial Statements in the Companies' Annual Report on Form 10-K for the year ended December 31, 2016.
[2] | Guarantees related to commodity commitments of certain subsidiaries. These guarantees were provided to counterparties in order to facilitate physical and financial transaction related commodities and services.
[3] | Guarantees related to certain DEI subsidiaries' regarding all aspects of running a nuclear facility.
[4] | Includes guarantees to facilitate the development of solar projects. Also includes guarantees entered into by DEI on behalf of certain subsidiaries to facilitate the acquisition and development of solar projects.
[5] | Guarantees related to other miscellaneous contractual obligations such as leases, environmental obligations, construction projects and insurance programs. Due to the uncertainty of worker’s compensation claims, the parental guarantee has no stated limit. Also included are guarantees related to certain DEI subsidiaries' obligations for equity capital contributions and energy generation associated with Fowler Ridge and NedPower. As of March 31, 2017, Dominion's maximum remaining cumulative exposure under these equity funding agreements is $26 million through 2019 and its maximum annual future contributions could range from approximately $4 million to $19 million.
[6] | Guarantees related to Cove Point, in support of terminal services, transportation and construction.

X
- Definition Guarantor Obligations, Future Annual Payments of Distributions to Affiliates + References No definition available. + Details
Name: | d_GuarantorObligationsFutureAnnualPaymentsofDistributionstoAffiliates
Namespace Prefix: | d_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

X
- Definition Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248 + Details
Name: | us-gaap_GuaranteeObligationsMaximumExposure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_GuaranteeObligationsByNatureAxis=us-gaap_FinancialGuaranteeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_EquityMethodInvesteeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_AffiliatedEntityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_GuaranteeObligationsByNatureAxis=us-gaap_CommodityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_GuaranteeObligationsByNatureAxis=us-gaap_NuclearPlantMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_GuaranteeObligationsByNatureAxis=d_SolarMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_GuaranteeObligationsByNatureAxis=d_OtherGuarantorObligationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_GuaranteeObligationsByNatureAxis=us-gaap_SuretyBondMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_GuaranteeObligationsByNatureAxis=us-gaap_FinancialStandbyLetterOfCreditMember
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: |

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