XML 161 R152.htm IDEA: XBRL DOCUMENT
v3.23.3

Long-Term Debt (Total Long Term Debt) (Detail) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Debt Instrument [Line Items] |  |  |
Weighted-average percentage interest rates |  | 4.73% | 0.31%
Total principal |  | $ 37,522 | $ 34,094
Securities due within one year | [1] | (2,848) | (805)
Unamortized discount, premium and debt issuances costs, net |  | (322) | (282)
Derivative restructuring | [2] | 141 | 738
Finance leases |  | 91 | 100
Total long-term debt |  | $ 34,584 | 33,847
Fair value hedge valuation | [3] |  | 2
Sustainability Revolving Credit Agreement, variable rate, due 2024 |  |  |
Debt Instrument [Line Items] |  |  |
Weighted-average percentage interest rates | [4],[5] | 5.24% |
Total principal | [5] | $ 450 |
4.82%, due 2042 |  |  |
Debt Instrument [Line Items] |  |  |
Weighted-average percentage interest rates | [4],[6] | 4.82% |
Total principal | [6] | $ 308 | 314
Senior Notes | Variable rates, due 2023 |  |  |
Debt Instrument [Line Items] |  |  |
Weighted-average percentage interest rates | [4] | 5.30% |
Total principal |  | $ 1,000 | 1,000
Senior Notes | 1.45% to 7.0%, due 2022 to 2052 |  |  |
Debt Instrument [Line Items] |  |  |
Weighted-average percentage interest rates | [4],[7],[8] | 4.01% |
Total principal | [7],[8] | $ 12,476 | 11,238
Senior Notes | 2.30% to 8.875%, due 2022 to 2052 |  |  |
Debt Instrument [Line Items] |  |  |
Total principal |  | $ 15,135 | 13,238
Junior Subordinated Debt | 3.071% due 2024 |  |  |
Debt Instrument [Line Items] |  |  |
Weighted-average percentage interest rates | [4] | 3.07% |
Total principal |  | $ 700 | 700
Junior Subordinated Debt | 8.4% due 2031 |  |  |
Debt Instrument [Line Items] |  |  |
Weighted-average percentage interest rates | [4] | 8.40% |
Total principal |  | $ 10 | 10
Enhanced Junior Subordinated Notes | 5.75% due 2054 |  |  |
Debt Instrument [Line Items] |  |  |
Weighted-average percentage interest rates | [4] | 5.75% |
Total principal |  | $ 685 | 685
Tax-Exempt Financings | Tax-Exempt Financings, 0.75% to 1.90%, due 2032 to 2041 |  |  |
Debt Instrument [Line Items] |  |  |
Total principal | [9] | $ 625 | 625
Tax-Exempt Financings | Variable Rate Due 2038 |  |  |
Debt Instrument [Line Items] |  |  |
Weighted-average percentage interest rates | [4],[10] | 3.70% |
Total principal | [10] | $ 35 | 35
Tax-Exempt Financings | GENCO variable rate due 2038 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Weighted-average percentage interest rates | [4],[10] | 3.70% |
Total principal | [10] | $ 33 | 33
Tax-Exempt Financings | 3.625% and 4.00%, due 2028 and 2033 |  |  |
Debt Instrument [Line Items] |  |  |
Weighted-average percentage interest rates | [4],[10] | 3.90% |
Total principal | [10] | $ 54 | 54
Tax-Exempt Financings | Other |  |  |
Debt Instrument [Line Items] |  |  |
Weighted-average percentage interest rates | [4],[10] | 3.63% |
Total principal | [10] | $ 1 | 1
Tax-Exempt Financings | Tax-Exempt Financing, 3.8% due 2033 |  |  |
Debt Instrument [Line Items] |  |  |
Weighted-average percentage interest rates | [4] | 3.80% |
Total principal |  | $ 27 | 27
DECP Holdings | Term Loan, Variable Rate, Due 2024 |  |  |
Debt Instrument [Line Items] |  |  |
Weighted-average percentage interest rates | [4],[11] | 5.71% |
Total principal | [11] | $ 2,349 | 2,500
DESC | First mortgage bonds, 2.30% to 6.625%, due 2028 to 2065 |  |  |
Debt Instrument [Line Items] |  |  |
Weighted-average percentage interest rates | [4] | 5.09% |
Total principal |  | $ 3,634 | $ 3,634
Virginia Electric and Power Company |  |  |
Debt Instrument [Line Items] |  |  |
Weighted-average percentage interest rates |  | 4.68% | 0.26%
Total principal |  | $ 15,760 | $ 13,863
Securities due within one year | [1] | (700) | (300)
Unamortized discount, premium and debt issuances costs, net |  | (144) | (110)
Derivative restructuring | [2] |  | 446
Finance leases |  | 65 | 57
Total long-term debt |  | $ 14,981 | 13,956
Virginia Electric and Power Company | Senior Notes | 2.30% to 8.875%, due 2022 to 2052 |  |  |
Debt Instrument [Line Items] |  |  |
Weighted-average percentage interest rates | [4] | 3.99% |
Total principal |  | $ 15,135 | 13,238
Virginia Electric and Power Company | Tax-Exempt Financings | Tax-Exempt Financings, 0.75% to 1.90%, due 2032 to 2041 |  |  |
Debt Instrument [Line Items] |  |  |
Weighted-average percentage interest rates | [4],[9] | 1.32% |
Total principal | [9] | $ 625 | $ 625
[1] | Dominion Energy and Virginia Power's weighted-average rate for securities due within one year was 3.69% and 2.75%, respectively, as of December 31, 2022.
[2] | Excludes $447 million at December 31, 2022 for both Dominion Energy and Virginia Power, representing the current portion which is presented within securities due within one year in the Companies’ Consolidated Balance Sheets. The Companies did not have any current derivative restructuring balances at December 31, 2021.
[3] | Represents the valuation of certain fair value hedges associated with Dominion Energy’s fixed rate debt.
[4] | Represents weighted-average coupon rates for debt outstanding as of December 31, 2022.
[5] | This $900 million supplemental credit facility, entered in June 2021, offers a reduced interest rate margin with respect to borrowed amounts allocated to certain environmental sustainability or social investment initiatives. Proceeds of the supplemental credit facility also may be used for general corporate purposes, but such proceeds are not eligible for a reduced interest rate margin. In June 2021 and August 2021, Dominion Energy borrowed $250 million and $650 million respectively. The proceeds from these borrowings were used to support environmental sustainability and social investment initiatives ($250 million) and for general corporate purposes ($650 million). In November 2021 and December 2021, Dominion Energy repaid $650 million and $250 million, respectively, borrowed under this arrangement. In May 2022, Dominion Energy borrowed $900 million. The proceeds from these borrowings were used to support environmental sustainability and social investment initiatives ($450 million) and for general corporate purposes ($450 million). In June 2022, Dominion Energy repaid $450 million borrowed for general corporate purposes.
[6] | Represents debt associated with Eagle Solar. The debt is nonrecourse to Dominion Energy and is secured by Eagle Solar’s interest in certain solar facilities.
[7] | In 2022, Dominion Energy repurchased $263 million of senior notes with various interest rates and maturity dates. Gains related to the early redemption of the senior notes were $35 million ($26 million after-tax) reflected within interest and related charges in Dominion Energy’s Consolidated Statements of Income.
[8] | Includes debt assumed by Dominion Energy from the merger of its former CNG subsidiary.
[9] | These financings relate to certain pollution control equipment at Virginia Power’s generating facilities.
[10] | Industrial revenue bonds totaling $68 million are secured by letters of credit that expire, subject to renewal, in the fourth quarter of 2023.
[11] | The term loan amortizes over a 17-year period and matures in December 2024 with the potential to be extended to December 2026. The debt is secured by DECP Holdings’ noncontrolling interest in Cove Point.

X
- Definition Finance lease liability noncurrent debt. + References No definition available. + Details
Name: | d_FinanceLeaseLiabilityNoncurrentDebt
Namespace Prefix: | d_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Long term debt derivative restructuring. + References No definition available. + Details
Name: | d_LongTermDebtDerivativeRestructuring
Namespace Prefix: | d_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Long-term Debt, Gross, Current Maturities + References No definition available. + Details
Name: | d_LongtermDebtGrossCurrentMaturities
Namespace Prefix: | d_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-4 + Details
Name: | us-gaap_DebtInstrumentCarryingAmount
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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 835 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482900/835-30-50-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(f)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480678/235-10-S99-3 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B Reference 5: http://www.xbrl.org/2003/role/exampleRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 69B -Publisher FASB -URI https://asc.fasb.org//1943274/2147481568/470-20-55-69B Reference 6: http://www.xbrl.org/2003/role/exampleRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 69C -Publisher FASB -URI https://asc.fasb.org//1943274/2147481568/470-20-55-69C Reference 7: http://www.xbrl.org/2003/role/exampleRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 69E -Publisher FASB -URI https://asc.fasb.org//1943274/2147481568/470-20-55-69E Reference 8: http://www.xbrl.org/2003/role/exampleRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 69F -Publisher FASB -URI https://asc.fasb.org//1943274/2147481568/470-20-55-69F Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B Reference 11: http://www.xbrl.org/2003/role/exampleRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B Reference 15: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1D -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1D Reference 16: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1D -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1D Reference 17: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1D -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1D Reference 18: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1E -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1E Reference 19: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1E -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1E Reference 20: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1E -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1E Reference 21: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1F -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1F Reference 22: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1F -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1F Reference 23: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1F -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1F Reference 24: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1F -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1F Reference 25: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1I -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1I + Details
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of unamortized debt discount (premium) and debt issuance costs. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 69B -Publisher FASB -URI https://asc.fasb.org//1943274/2147481568/470-20-55-69B Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 69C -Publisher FASB -URI https://asc.fasb.org//1943274/2147481568/470-20-55-69C Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1D -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1D Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482925/835-30-45-3 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-4 + Details
Name: | us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Weighted average interest rate of debt outstanding. + References No definition available. + Details
Name: | us-gaap_DebtWeightedAverageInterestRate
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Fair value as of the balance sheet date of all derivative liabilities designated as interest rate fair value hedging instruments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-4B + Details
Name: | us-gaap_InterestRateFairValueHedgeLiabilityAtFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of long-term debt and lease obligation, classified as noncurrent. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)(a)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 + Details
Name: | us-gaap_LongTermDebtAndCapitalLeaseObligations
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_DebtInstrumentAxis=d_SustainabilityRevolvingCreditAgreementVariableRateDueTwoThousandTwentyFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=d_SecuredSeniorNotesFourPointEightTwoPercentDueTwoThousandFourtyTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=d_UnsecuredSeniorNotesVariableRatesDueTwoThousandTwentyAndTwoThousandTwentyThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=d_UnsecuredSeniorNotesOnePointFourFivePercentToSevenPointZeroPercentDueTwoThousandTwentyTwoToTwoThousandFiftyTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=d_UnsecuredSeniorNotesTwoPointThreeZeroPercentToEightPointEightSevenFivePercentDueTwoThosandTwentyTwoToTwoThousandFiftyTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_JuniorSubordinatedDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=d_UnsecuredJuniorSubordinatedNotesThreePointZeroSevenOneDueTwoThousandTwentyFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=d_UnsecuredJuniorSubordinatedNotesPayableToAffiliatedTrustsEightPointFourPercentDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=d_EnhancedJuniorSubordinatedNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=d_EnhancedJuniorSubordinatedNotesFivePointSevenFivePercentDueTwoThousandFiftyFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=d_TaxExemptFinancingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=d_TaxExemptFinancingsZeroPointSevenFiveToOnePointNinePercentDueTwoThousandThirtyTwoToTwoThousandFortyOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=d_VariableRateDue2038Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=d_GencoVariableRateDue2038Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=d_UtilityTaxExemptLoanThreePointSixTwoFiveAndFourPercentDue2028To2033Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=d_OtherDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=d_UtilityTaxExemptLoanThreePointEightPercentDue2033Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=d_DECPHoldingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=d_UnsecuredSeniorNotesVariableRateDueTwoThousandTwentyFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=d_DESCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=d_FirstMortgageBondsThreePointTwoTwoToSixPointDue2028To2065Member
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: |