XML 111 R89.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Income Taxes (Schedule of Deferred Income Taxes) (Detail) - USD ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Deferred income taxes: |  |
Total deferred income tax assets | $ 2,748 | $ 2,686
Total deferred income tax liabilities | 7,813 | 7,158
Total net deferred income tax liabilities | 5,065 | 4,472
Plant and equipment, primarily depreciation method and basis differences | 4,933 | 5,056
Excess deferred income taxes | (993) | (1,050)
Nuclear decommissioning | 815 | 829
Deferred state income taxes | 626 | 834
Federal benefit of deferred state income taxes | (132) | (175)
Deferred fuel, purchased energy and gas costs | 60 | 1
Pension benefits | 81 | 141
Other postretirement benefits | (5) | (51)
Loss and credit carryforwards | (1,546) | (1,536)
Valuation allowances | 158 | 146
Partnership basis differences | 1,135 | 473
Other | (67) | (196)
Total net deferred income tax liabilities | 5,065 | 4,472
Deferred Investment Tax Credits - Regulated Operations | 51 | 51
Total Deferred Taxes and Deferred Investment Tax Credits | 5,116 | 4,523
Virginia Electric and Power Company |  |
Deferred income taxes: |  |
Total deferred income tax assets | 1,054 | 923
Total deferred income tax liabilities | 4,020 | 3,600
Total net deferred income tax liabilities | 2,966 | 2,677
Plant and equipment, primarily depreciation method and basis differences | 3,367 | 2,969
Excess deferred income taxes | (678) | (687)
Nuclear decommissioning | 273 | 260
Deferred state income taxes | 284 | 378
Federal benefit of deferred state income taxes | (60) | (79)
Deferred fuel, purchased energy and gas costs | 59 | (3)
Pension benefits | (132) | (104)
Other postretirement benefits | 55 | 44
Loss and credit carryforwards | (183) | (111)
Valuation allowances | 5 | 5
Other | (24) | 5
Total net deferred income tax liabilities | 2,966 | 2,677
Deferred Investment Tax Credits - Regulated Operations | 51 | 51
Total Deferred Taxes and Deferred Investment Tax Credits | 3,017 | 2,728
Dominion Energy Gas Holdings, LLC |  |
Deferred income taxes: |  |
Total deferred income tax assets | 318 | 320
Total deferred income tax liabilities | 1,783 | 1,774
Total net deferred income tax liabilities | 1,465 | 1,454
Plant and equipment, primarily depreciation method and basis differences | 1,170 | 1,132
Excess deferred income taxes | (254) | (244)
Deferred state income taxes | 175 | 227
Federal benefit of deferred state income taxes | (37) | (48)
Deferred fuel, purchased energy and gas costs | 1 | 2
Pension benefits | 431 | 419
Other postretirement benefits | (1) | (2)
Loss and credit carryforwards | (7) | (4)
Valuation allowances | 12 | 3
Partnership basis differences | 26 | 26
Other | (51) | (57)
Total net deferred income tax liabilities | 1,465 | 1,454
Total Deferred Taxes and Deferred Investment Tax Credits | $ 1,465 | $ 1,454

X
- Definition Deferred Tax Assets, Operating Loss and Tax Credit Carryforwards + References No definition available. + Details
Name: | d_DeferredTaxAssetsOperatingLossAndTaxCreditCarryforwards
Namespace Prefix: | d_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Deferred Tax Liabilities and Deferred Investment Tax Credits, Net + References No definition available. + Details
Name: | d_DeferredTaxLiabilitiesAndDeferredInvestmentTaxCreditsNet
Namespace Prefix: | d_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Deferred tax liabilities deferred fuel, purchased energy and gas costs. + References No definition available. + Details
Name: | d_DeferredTaxLiabilitiesDeferredFuelPurchasedEnergyAndGasCosts
Namespace Prefix: | d_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Deferred tax liabilities, excess deferred income taxes. + References No definition available. + Details
Name: | d_DeferredTaxLiabilitiesExcessDeferredIncomeTaxes
Namespace Prefix: | d_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Deferred Tax Liabilities Federal Benefit Of Deferred State Income Taxes + References No definition available. + Details
Name: | d_DeferredTaxLiabilitiesFederalBenefitOfDeferredStateIncomeTaxes
Namespace Prefix: | d_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Deferred Tax Liabilities Nuclear Decommissioning + References No definition available. + Details
Name: | d_DeferredTaxLiabilitiesNuclearDecommissioning
Namespace Prefix: | d_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Deferred Tax Liabilities Partnership Basis Differences + References No definition available. + Details
Name: | d_DeferredTaxLiabilitiesPartnershipBasisDifferences
Namespace Prefix: | d_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Deferred Tax Liabilities State Income Taxes + References No definition available. + Details
Name: | d_DeferredTaxLiabilitiesStateIncomeTaxes
Namespace Prefix: | d_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Deferred Tax Liabilities Tax Deferred Expense Compensation And Benefits Pensions + References No definition available. + Details
Name: | d_DeferredTaxLiabilitiesTaxDeferredExpenseCompensationAndBenefitsPensions
Namespace Prefix: | d_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Deferred Tax Liabilities Tax Deferred Expense Compensation And Benefits Postretirement Benefits + References No definition available. + Details
Name: | d_DeferredTaxLiabilitiesTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits
Namespace Prefix: | d_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Deferred Tax Liabilities Valuation Allowance + References No definition available. + Details
Name: | d_DeferredTaxLiabilitiesValuationAllowance
Namespace Prefix: | d_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The noncurrent portion of the reserve for accumulated deferred investment tax credits as of the balance sheet date. This is the remaining investment credit, which will reduce the cost of services collected from ratepayers by a ratable portion over the investment's regulatory life. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 255 -SubTopic 10 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=82838779&loc=d3e2408-110839 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.26(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 27 -URI http://asc.fasb.org/extlink&oid=84176650&loc=d3e32262-109318 + Details
Name: | us-gaap_AccumulatedDeferredInvestmentTaxCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_ComponentsOfDeferredTaxAssetsAndLiabilitiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of deferred tax liability attributable to taxable temporary differences. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(26)(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(15)(b)(2)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(15)(2)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(26)(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
Name: | us-gaap_DeferredIncomeTaxLiabilities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b),(c) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
Name: | us-gaap_DeferredTaxAssetsNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=115928272&loc=d3e28680-109314 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32632-109319 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32621-109319 + Details
Name: | us-gaap_DeferredTaxAssetsOther
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from pension benefits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32621-109319 + Details
Name: | us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from postretirement benefits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32621-109319 + Details
Name: | us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=84176650&loc=d3e31931-109318 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
Name: | us-gaap_DeferredTaxLiabilities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=115928272&loc=d3e28680-109314 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32621-109319 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32632-109319 + Details
Name: | us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

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