XML 172 R163.htm IDEA: XBRL DOCUMENT
v3.23.3

Dividend Restrictions (Narrative) (Detail) - Virginia Power and PSNC | 12 Months Ended
--- | ---
Dec. 31, 2022
Dividend Restrictions [Line Items] |
Regulatory restrictions on payment of dividends | In addition, notice to the North Carolina Commission is required if payment of dividends causes the equity component of Virginia Power and PSNC’s capital structure to fall below 45%.
Required equity capital percentage | 45.00%

X
- Definition Dividend restrictions. + References No definition available. + Details
Name: | d_DividendRestrictionsLineItems
Namespace Prefix: | d_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Required equity capital percentage. + References No definition available. + Details
Name: | d_RequiredEquityCapitalPercentage
Namespace Prefix: | d_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Statement regarding federal and state laws and regulations related to restrictions on banking or savings institution's ability to pay dividends. + References No definition available. + Details
Name: | us-gaap_RegulatoryRestrictionsOnPaymentOfDividends
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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