XML 96 R83.htm IDEA: XBRL DOCUMENT
v3.24.1.u1

Derivatives and Hedge Accounting Activities (Fair Value of Derivatives) (Detail) - USD ($) $ in Millions | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Derivatives Fair Value [Line Items] |  |  |  |  |
Total current derivative assets | [1] | $ 685 |  | $ 753 |
Total noncurrent derivative assets |  | 759 | [2] | 597 | [3]
Total derivative assets |  | 1,444 |  | 1,350 |
Total current derivative liabilities | [4] | 343 |  | 376 |
Total noncurrent derivative liabilities | [3] | 479 |  | 321 |
Total derivative liabilities |  | 822 |  | 697 |
Virginia Electric and Power Company |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Total current derivative assets | [1] | 183 |  | 234 |
Total noncurrent derivative assets |  | 96 | [2] | 64 | [3]
Total derivative assets |  | 279 |  | 298 |
Total current derivative liabilities | [4] | 192 |  | 244 |
Total noncurrent derivative liabilities | [3] | 97 |  | 72 |
Total derivative liabilities |  | 289 |  | 316 |
Commodity Contract |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Total current derivative assets |  | 256 |  | 312 |
Total noncurrent derivative assets |  | 290 |  | 238 |
Total current derivative liabilities |  | 191 |  | 244 |
Total noncurrent derivative liabilities |  | 40 |  | 55 |
Commodity Contract | Virginia Electric and Power Company |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Total current derivative assets |  | 86 |  | 91 |
Total noncurrent derivative assets |  | 18 |  | 26 |
Total current derivative liabilities |  | 136 |  | 188 |
Total noncurrent derivative liabilities |  | 24 |  | 44 |
Interest Rate Contract |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Total current derivative assets |  | 426 |  | 441 |
Total noncurrent derivative assets |  | 469 |  | 359 |
Total current derivative liabilities |  | 117 |  | 121 |
Total noncurrent derivative liabilities |  | 366 |  | 238 |
Interest Rate Contract | Virginia Electric and Power Company |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Total current derivative assets |  | 94 |  | 143 |
Total noncurrent derivative assets |  | 78 |  | 38 |
Total current derivative liabilities |  | 21 |  | 45 |
Total noncurrent derivative liabilities |  | 0 |  | 0 |
Foreign currency exchange rate |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Total current derivative assets |  | 3 |  |  |
Total current derivative liabilities |  | 35 |  | 11 |
Total noncurrent derivative liabilities |  | 73 |  | 28 |
Foreign currency exchange rate | Virginia Electric and Power Company |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Total current derivative assets |  | 3 |  |  |
Total current derivative liabilities |  | 35 |  | 11 |
Total noncurrent derivative liabilities |  | 73 |  | 28 |
Designated as Hedging Instrument |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Total current derivative assets | [1] | 94 |  | 143 |
Total noncurrent derivative assets |  | 78 | [2] | 38 | [3]
Total derivative assets |  | 172 |  | 181 |
Total current derivative liabilities | [4] | 21 |  | 45 |
Total noncurrent derivative liabilities | [3] | 0 |  | 0 |
Total derivative liabilities |  | 21 |  | 45 |
Designated as Hedging Instrument | Virginia Electric and Power Company |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Total current derivative assets | [1] | 94 |  | 143 |
Total noncurrent derivative assets |  | 78 | [2] | 38 | [3]
Total derivative assets |  | 172 |  | 181 |
Total current derivative liabilities | [4] | 21 |  | 45 |
Total noncurrent derivative liabilities | [3] | 0 |  | 0 |
Total derivative liabilities |  | 21 |  | 45 |
Designated as Hedging Instrument | Commodity Contract |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Total current derivative assets |  | 0 |  | 0 |
Total noncurrent derivative assets |  | 0 |  | 0 |
Total current derivative liabilities |  | 0 |  | 0 |
Total noncurrent derivative liabilities |  | 0 |  | 0 |
Designated as Hedging Instrument | Commodity Contract | Virginia Electric and Power Company |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Total current derivative assets |  | 0 |  | 0 |
Total noncurrent derivative assets |  | 0 |  | 0 |
Total current derivative liabilities |  | 0 |  | 0 |
Total noncurrent derivative liabilities |  | 0 |  | 0 |
Designated as Hedging Instrument | Interest Rate Contract |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Total current derivative assets |  | 94 |  | 143 |
Total noncurrent derivative assets |  | 78 |  | 38 |
Total current derivative liabilities |  | 21 |  | 45 |
Total noncurrent derivative liabilities |  | 0 |  | 0 |
Designated as Hedging Instrument | Interest Rate Contract | Virginia Electric and Power Company |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Total current derivative assets |  | 94 |  | 143 |
Total noncurrent derivative assets |  | 78 |  | 38 |
Total current derivative liabilities |  | 21 |  | 45 |
Total noncurrent derivative liabilities |  | 0 |  | 0 |
Designated as Hedging Instrument | Foreign currency exchange rate |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Total current derivative assets |  | 0 |  |  |
Total current derivative liabilities |  | 0 |  | 0 |
Total noncurrent derivative liabilities |  | 0 |  | 0 |
Designated as Hedging Instrument | Foreign currency exchange rate | Virginia Electric and Power Company |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Total current derivative assets |  | 0 |  |  |
Total current derivative liabilities |  | 0 |  | 0 |
Total noncurrent derivative liabilities |  | 0 |  | 0 |
Fair Value - Derivatives not under Hedge Accounting |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Total current derivative assets | [1] | 591 |  | 610 |
Total noncurrent derivative assets |  | 681 | [2] | 559 | [3]
Total derivative assets |  | 1,272 |  | 1,169 |
Total current derivative liabilities | [4] | 322 |  | 331 |
Total noncurrent derivative liabilities | [3] | 479 |  | 321 |
Total derivative liabilities |  | 801 |  | 652 |
Fair Value - Derivatives not under Hedge Accounting | Virginia Electric and Power Company |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Total current derivative assets | [1] | 89 |  | 91 |
Total noncurrent derivative assets |  | 18 | [2] | 26 | [3]
Total derivative assets |  | 107 |  | 117 |
Total current derivative liabilities | [4] | 171 |  | 199 |
Total noncurrent derivative liabilities | [3] | 97 |  | 72 |
Total derivative liabilities |  | 268 |  | 271 |
Fair Value - Derivatives not under Hedge Accounting | Commodity Contract |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Total current derivative assets |  | 256 |  | 312 |
Total noncurrent derivative assets |  | 290 |  | 238 |
Total current derivative liabilities |  | 191 |  | 244 |
Total noncurrent derivative liabilities |  | 40 |  | 55 |
Fair Value - Derivatives not under Hedge Accounting | Commodity Contract | Virginia Electric and Power Company |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Total current derivative assets |  | 86 |  | 91 |
Total noncurrent derivative assets |  | 18 |  | 26 |
Total current derivative liabilities |  | 136 |  | 188 |
Total noncurrent derivative liabilities |  | 24 |  | 44 |
Fair Value - Derivatives not under Hedge Accounting | Interest Rate Contract |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Total current derivative assets |  | 332 |  | 298 |
Total noncurrent derivative assets |  | 391 |  | 321 |
Total current derivative liabilities |  | 96 |  | 76 |
Total noncurrent derivative liabilities |  | 366 |  | 238 |
Fair Value - Derivatives not under Hedge Accounting | Interest Rate Contract | Virginia Electric and Power Company |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Total current derivative assets |  | 0 |  | 0 |
Total noncurrent derivative assets |  | 0 |  | 0 |
Total current derivative liabilities |  | 0 |  | 0 |
Total noncurrent derivative liabilities |  | 0 |  | 0 |
Fair Value - Derivatives not under Hedge Accounting | Foreign currency exchange rate |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Total current derivative assets |  | 3 |  |  |
Total current derivative liabilities |  | 35 |  | 11 |
Total noncurrent derivative liabilities |  | 73 |  | 28 |
Fair Value - Derivatives not under Hedge Accounting | Foreign currency exchange rate | Virginia Electric and Power Company |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Total current derivative assets |  | 3 |  |  |
Total current derivative liabilities |  | 35 |  | 11 |
Total noncurrent derivative liabilities |  | $ 73 |  | $ 28 |
[1] | Includes $23 million and $54 million recorded in current assets held for sale in Dominion Energy’s Consolidated Balance Sheets at March 31, 2024 and December 31, 2023, respectively, with the remaining current derivative assets presented in other current assets in the Companies’ Consolidated Balance Sheets.
[2] | Noncurrent derivative assets are presented in other deferred charges and other assets in the Companies’ Consolidated Balance Sheets.
[3] | Noncurrent derivative liabilities are presented in other deferred credits and other liabilities in the Companies’ Consolidated Balance Sheets.
[4] | Includes $1 million and $30 million recorded in current liabilities held for sale in Dominion Energy’s Consolidated Balance Sheets at March 31, 2024 and December 31, 2023, respectively, with the remaining current derivative liabilities presented in other current liabilities in the Companies’ Consolidated Balance Sheets.

X
- Definition Derivative assets fair value. + References No definition available. + Details
Name: | d_DerivativeAssetsFairValue
Namespace Prefix: | d_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Derivative assets fair value current. + References No definition available. + Details
Name: | d_DerivativeAssetsFairValueCurrent
Namespace Prefix: | d_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Derivative assets fair value noncurrent. + References No definition available. + Details
Name: | d_DerivativeAssetsFairValueNoncurrent
Namespace Prefix: | d_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Derivative liabilities fair value current. + References No definition available. + Details
Name: | d_DerivativeLiabilitiesFairValueCurrent
Namespace Prefix: | d_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Derivative liability fair value. + References No definition available. + Details
Name: | d_DerivativeLiabilityFairValue
Namespace Prefix: | d_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Derivative liability fair value noncurrent. + References No definition available. + Details
Name: | d_DerivativeLiabilityFairValueNoncurrent
Namespace Prefix: | d_
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: |