XML 107 R97.htm IDEA: XBRL DOCUMENT
v3.25.1

Regulatory Matters - Schedule of Additional Significant Riders Associated with Virginia Power Projects (Parenthetical) (Detail) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2025 USD ($) Agreement Project
Virginia Electric and Power Company |  |
Public Utilities, General Disclosures [Line Items] |  |
Additional total revenue requirement | $ 25 |
Public utilities requested rate increase annual revenue of pending applications approval | $ 53 |
Rider CE |  |
Public Utilities, General Disclosures [Line Items] |  |
Public utilities number of small scale solar project | Agreement | 2 |
Public utilities number of power purchase agreements | Agreement | 19 |
Rider CE | Virginia Electric and Power Company |  |
Public Utilities, General Disclosures [Line Items] |  |
Total revenue requirement | $ 182 | [1],[2]
Public utilities number of solar generation projects | Project | 2 |
Consolidation of Riders BW, GV and Four Other Riders | Virginia Electric and Power Company |  |
Public Utilities, General Disclosures [Line Items] |  |
Total revenue requirement | $ 348 |
[1] | Associated with two solar generation projects, two small-scale solar projects and 19 purchased power agreements in addition to previously approved Rider CE projects.
[2] | In addition, Virginia Power has a rider associated with another project with a total annual revenue requirement of $25 million as of March 31, 2025, and pending applications associated with other riders, including for the Chesterfield Energy Reliability Center described above, which if approved would result in a net annual revenue requirement increase of $53 million.

X
- Definition Additional public utilities requested rate amount. + References No definition available. + Details
Name: | d_AdditionalPublicUtilitiesRequestedRateAmount
Namespace Prefix: | d_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Public utilities number Of power purchase agreements. + References No definition available. + Details
Name: | d_PublicUtilitiesNumberOfPowerPurchaseAgreements
Namespace Prefix: | d_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Public utilities number of small scale solar project. + References No definition available. + Details
Name: | d_PublicUtilitiesNumberOfSmallScaleSolarProject
Namespace Prefix: | d_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Public utilities number of solar generation projects. + References No definition available. + Details
Name: | d_PublicUtilitiesNumberOfSolarGenerationProjects
Namespace Prefix: | d_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Public Utilities, Requested Rate, Amount + References No definition available. + Details
Name: | d_PublicUtilitiesRequestedRateAmount
Namespace Prefix: | d_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Public utilities requested rate increase annual revenue of pending applications approval. + References No definition available. + Details
Name: | d_PublicUtilitiesRequestedRateIncreaseAnnualRevenueOfPendingApplicationsApproval
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_PublicUtilitiesGeneralDisclosuresLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

X
- Details
Name: | us-gaap_PublicUtilitiesRegulatoryProceedingAxis=d_RiderCEMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilitiesRegulatoryProceedingAxis=d_ConsolidationOfRidersBwGvAndFourOtherRidersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |