XML 64 R51.htm IDEA: XBRL DOCUMENT
v3.23.1

Significant Accounting Policies (Schedule of Supplemental Cash Flow Information) (Detail) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2023 | Mar. 31, 2022
Significant noncash investing and financing activities:(1) |  |  |
Accrued capital expenditures | [1] | $ 671 | $ 425
Leases | [2] | 117 | 24
Virginia Electric and Power Company |  |  |
Significant noncash investing and financing activities:(1) |  |  |
Accrued capital expenditures |  | 460 | 252
Leases | [3] | $ 99 | $ 21
[1] | See Note 10 for noncash investing activities related to the acquisition of a noncontrolling interest in Dominion Privatization and Note 17 for noncash financing activities related to the transfer of property associated with the settlement of litigation.
[2] | Includes $32 million and $6 million of financing leases at March 31, 2023 and 2022, respectively, and $85 million and $18 million of operating leases at March 31, 2023 and 2022, respectively.
[3] | Includes $31 million and $4 million of financing leases at March 31, 2023 and 2022, respectively, and $68 million and $17 million of operating leases at March 31, 2023 and 2022, respectively.

X
- Definition Leases + References No definition available. + Details
Name: | d_Leases
Namespace Prefix: | d_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Future cash outflow to pay for purchases of fixed assets that have occurred. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=126999549&loc=d3e4332-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=126999549&loc=d3e4313-108586 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=126999549&loc=d3e4304-108586 + Details
Name: | us-gaap_CapitalExpendituresIncurredButNotYetPaid
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract
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: |