XML 100 R87.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Derivatives and Hedge Accounting Activities (Fair Value of Derivatives) (Detail) - USD ($) $ in Millions | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Derivatives Fair Value [Line Items] |  |  |  |
Derivative Asset, Current |  | $ 670 | $ 122 |
Derivative Asset, Current |  | 670 | 122 | [1]
Derivative Asset, Noncurrent |  | 1,799 | 491 | [1]
Derivative Asset |  | 2,469 | 613 |
Derivative Liabilities, Current |  | 1,179 | 359 |
Derivative Liabilities, Current |  | 1,179 | 359 | [1]
Derivative Liabilities, Noncurrent |  | 1,192 | 509 | [1]
Derivative Liabilities |  | 2,371 | 868 |
Virginia Electric and Power Company |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |
Derivative Asset, Current | [2] | 363 | 76 | [3]
Derivative Asset, Noncurrent | [4] | 598 | 224 |
Derivative Asset |  | 961 | 300 |
Derivative Liabilities, Current | [2] | 442 | 134 | [3]
Derivative Liabilities, Noncurrent | [5] | 475 | 336 |
Derivative Liabilities |  | 917 | 470 |
Commodity Contract |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |
Derivative Asset, Current |  | 610 | 103 |
Derivative Asset, Noncurrent |  | 260 | 179 |
Derivative Liabilities, Current |  | 1,083 | 304 |
Derivative Liabilities, Noncurrent |  | 426 | 165 |
Commodity Contract | Virginia Electric and Power Company |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |
Derivative Asset, Current |  | 357 | 74 |
Derivative Asset, Noncurrent |  | 2 | 72 |
Derivative Liabilities, Current |  | 392 | 92 |
Derivative Liabilities, Noncurrent |  | 111 | 41 |
Interest Rate Contract |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |
Derivative Asset, Current |  | 54 | 18 |
Derivative Asset, Noncurrent |  | 1,539 | 305 |
Derivative Liabilities, Current |  | 46 | 55 |
Derivative Liabilities, Noncurrent |  | 429 | 344 |
Interest Rate Contract | Virginia Electric and Power Company |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |
Derivative Asset, Current |  |  | 1 |
Derivative Asset, Noncurrent |  | 596 | 145 |
Derivative Liabilities, Current |  |  | 42 |
Derivative Liabilities, Noncurrent |  | 27 | 295 |
Foreign currency exchange rate |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |
Derivative Asset, Current |  | 6 | 1 |
Derivative Asset, Noncurrent |  |  | 7 |
Derivative Liabilities, Current |  | 50 |  |
Derivative Liabilities, Noncurrent |  | 337 |  |
Foreign currency exchange rate | Virginia Electric and Power Company |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |
Derivative Asset, Current |  | 6 | 1 |
Derivative Asset, Noncurrent |  |  | 7 |
Derivative Liabilities, Current |  | 50 |  |
Derivative Liabilities, Noncurrent |  | 337 |  |
Designated as Hedging Instrument |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |
Derivative Asset, Current |  | 0 | 1 |
Derivative Asset, Noncurrent |  | 596 | 145 |
Derivative Asset |  | 596 | 146 |
Derivative Liabilities, Current |  | 0 | 42 |
Derivative Liabilities, Noncurrent |  | 27 | 295 |
Derivative Liabilities |  | 27 | 337 |
Designated as Hedging Instrument | Virginia Electric and Power Company |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |
Derivative Asset, Current |  | 0 | 1 |
Derivative Asset, Noncurrent | [4] | 596 | 145 |
Derivative Asset |  | 596 | 146 |
Derivative Liabilities, Current |  | 0 | 42 |
Derivative Liabilities, Noncurrent | [5] | 27 | 295 |
Derivative Liabilities |  | 27 | 337 |
Designated as Hedging Instrument | Commodity Contract |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |
Derivative Asset, Current |  | 0 | 0 |
Derivative Asset, Noncurrent |  | 0 | 0 |
Derivative Liabilities, Current |  | 0 | 0 |
Derivative Liabilities, Noncurrent |  | 0 | 0 |
Designated as Hedging Instrument | Commodity Contract | Virginia Electric and Power Company |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |
Derivative Asset, Current |  | 0 | 0 |
Derivative Asset, Noncurrent |  | 0 | 0 |
Derivative Liabilities, Current |  | 0 | 0 |
Derivative Liabilities, Noncurrent |  | 0 | 0 |
Designated as Hedging Instrument | Interest Rate Contract |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |
Derivative Asset, Current |  | 0 | 1 |
Derivative Asset, Noncurrent |  | 596 | 145 |
Derivative Liabilities, Current |  | 0 | 42 |
Derivative Liabilities, Noncurrent |  | 27 | 295 |
Designated as Hedging Instrument | Interest Rate Contract | Virginia Electric and Power Company |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |
Derivative Asset, Current |  |  | 1 |
Derivative Asset, Noncurrent |  | 596 | 145 |
Derivative Liabilities, Current |  |  | 42 |
Derivative Liabilities, Noncurrent |  | 27 | 295 |
Designated as Hedging Instrument | Foreign currency exchange rate |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |
Derivative Asset, Current |  | 0 | 0 |
Derivative Asset, Noncurrent |  |  | 0 |
Derivative Liabilities, Current |  | 0 |  |
Derivative Liabilities, Noncurrent |  | 0 |  |
Designated as Hedging Instrument | Foreign currency exchange rate | Virginia Electric and Power Company |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |
Derivative Asset, Current |  | 0 | 0 |
Derivative Asset, Noncurrent |  |  | 0 |
Derivative Liabilities, Current |  | 0 |  |
Derivative Liabilities, Noncurrent |  | 0 |  |
Fair Value - Derivatives not under Hedge Accounting |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |
Derivative Asset, Current |  | 670 | 121 |
Derivative Asset, Noncurrent |  | 1,203 | 346 |
Derivative Asset |  | 1,873 | 467 |
Derivative Liabilities, Current |  | 1,179 | 317 |
Derivative Liabilities, Noncurrent |  | 1,165 | 214 |
Derivative Liabilities |  | 2,344 | 531 |
Fair Value - Derivatives not under Hedge Accounting | Virginia Electric and Power Company |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |
Derivative Asset, Current |  | 363 | 75 |
Derivative Asset, Noncurrent | [4] | 2 | 79 |
Derivative Asset |  | 365 | 154 |
Derivative Liabilities, Current |  | 442 | 92 |
Derivative Liabilities, Noncurrent | [5] | 448 | 41 |
Derivative Liabilities |  | 890 | 133 |
Fair Value - Derivatives not under Hedge Accounting | Commodity Contract |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |
Derivative Asset, Current |  | 610 | 103 |
Derivative Asset, Noncurrent |  | 260 | 179 |
Derivative Liabilities, Current |  | 1,083 | 304 |
Derivative Liabilities, Noncurrent |  | 426 | 165 |
Fair Value - Derivatives not under Hedge Accounting | Commodity Contract | Virginia Electric and Power Company |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |
Derivative Asset, Current |  | 357 | 74 |
Derivative Asset, Noncurrent |  | 2 | 72 |
Derivative Liabilities, Current |  | 392 | 92 |
Derivative Liabilities, Noncurrent |  | 111 | 41 |
Fair Value - Derivatives not under Hedge Accounting | Interest Rate Contract |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |
Derivative Asset, Current |  | 54 | 17 |
Derivative Asset, Noncurrent |  | 943 | 160 |
Derivative Liabilities, Current |  | 46 | 13 |
Derivative Liabilities, Noncurrent |  | 402 | 49 |
Fair Value - Derivatives not under Hedge Accounting | Interest Rate Contract | Virginia Electric and Power Company |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |
Derivative Asset, Current |  |  | 0 |
Derivative Asset, Noncurrent |  | 0 | 0 |
Derivative Liabilities, Current |  |  | 0 |
Derivative Liabilities, Noncurrent |  | 0 | 0 |
Fair Value - Derivatives not under Hedge Accounting | Foreign currency exchange rate |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |
Derivative Asset, Current |  | 6 | 1 |
Derivative Asset, Noncurrent |  |  | 7 |
Derivative Liabilities, Current |  | 50 |  |
Derivative Liabilities, Noncurrent |  | 337 |  |
Fair Value - Derivatives not under Hedge Accounting | Foreign currency exchange rate | Virginia Electric and Power Company |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |
Derivative Asset, Current |  | 6 | 1 |
Derivative Asset, Noncurrent |  |  | $ 7 |
Derivative Liabilities, Current |  | 50 |  |
Derivative Liabilities, Noncurrent |  | $ 337 |  |
[1] | Dominion Energy’s Consolidated Balance Sheet at December 31, 2021 has been derived from the audited Consolidated Balance Sheet at that date.
[2] | See Note 19 for amounts attributable to affiliates.
[3] | Virginia Power’s Consolidated Balance Sheet at December 31, 2021 has been derived from the audited Consolidated Balance Sheet at that date.
[4] | Noncurrent derivative assets are presented in other deferred charges and other assets in Virginia Power’s Consolidated Balance Sheets.
[5] | Noncurrent derivative liabilities are presented in other deferred credits and other liabilities in Virginia Power’s Consolidated Balance Sheets.

X
- Definition Derivative assets current including assets held for sale. + References No definition available. + Details
Name: | d_DerivativeAssetsCurrentIncludingAssetsHeldForSale
Namespace Prefix: | d_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Derivative liabilities current Including liabilities held for sale. + References No definition available. + Details
Name: | d_DerivativeLiabilitiesCurrentIncludingLiabilitiesHeldForSale
Namespace Prefix: | d_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 22 -URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226052-175313 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
Name: | us-gaap_DerivativeAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
Name: | us-gaap_DerivativeAssetsCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
Name: | us-gaap_DerivativeAssetsNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 22 -URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226052-175313 + Details
Name: | us-gaap_DerivativeLiabilities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
Name: | us-gaap_DerivativeLiabilitiesCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
Name: | us-gaap_DerivativeLiabilitiesNoncurrent
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 No definition available. + Details
Name: | us-gaap_DerivativesFairValueLineItems
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_DerivativeInstrumentRiskAxis=us-gaap_CommodityContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_ForeignExchangeContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_HedgingDesignationAxis=us-gaap_DesignatedAsHedgingInstrumentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_HedgingDesignationAxis=us-gaap_NondesignatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |