XML 160 R138.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Regulatory Matters (Narrative) (Detail 2) - USD ($) $ in Millions | 1 Months Ended
--- | ---
Feb. 23, 2024 | Jan. 31, 2024 | Sep. 30, 2023 | Mar. 31, 2023 | Feb. 28, 2023
North Carolina Regulation |  |  |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |  |  |
Approval date |  |  |  | 2023-03 |
North Carolina Regulation | Rider DSM |  |  |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |  |  |
Increase in customer usage tracker |  |  | $ 34 | $ 23 |
Public Service Company Of North Carolina | North Carolina Regulation | Rider D |  |  |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |  |  |
Increase (decrease) in gas cost |  |  |  |  | $ (56)
Approval date |  |  |  |  | 2023-03
Public Service Company Of North Carolina | North Carolina Regulation | Rider D | Subsequent Event |  |  |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |  |  |
Increase (decrease) in gas cost |  | $ 42 |  |  |
Approval date |  | 2024-01 |  |  |
Virginia Electric and Power Company | Virginia Regulation | Subsequent Event |  |  |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |  |  |
Issuance of deferred bond for under recovery of fuel cost | $ 1,300 |  |  |  |

X
- Definition Approval date of public utilities regulatory filing. + References No definition available. + Details
Name: | d_ApprovalDateOfPublicUtilitiesRegulatoryFiling
Namespace Prefix: | d_
Data Type: | xbrli:gYearMonthItemType
Balance Type: | na
Period Type: | duration

X
- Definition Increase in customer usage tracker. + References No definition available. + Details
Name: | d_IncreaseInCustomerUsageTracker
Namespace Prefix: | d_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Issuance of deferred bond for under recovery of fuel cost. + References No definition available. + Details
Name: | d_IssuanceOfDeferredBondForUnderRecoveryOfFuelCost
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
- Definition Amount of public utility's interim rate increase (decrease) allowed while waiting final decision of regulatory agency. + References No definition available. + Details
Name: | us-gaap_PublicUtilitiesInterimRateIncreaseDecreaseAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_RegulatoryAgencyAxis=d_NorthCarolinaRegulationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
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: | us-gaap_RegulatoryAgencyAxis=d_VirginiaRegulationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |