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Operating Revenue (Schedule of Operating Revenue) (Detail) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Public Utilities General Disclosures [Line Items] |  |  |
Operating revenue from contracts with customers |  | $ 3,524 | $ 3,452
Other revenues | [1],[2] | 108 | 431
Total operating revenue |  | 3,632 | 3,883
Regulated Electric Sales | Residential |  |  |
Public Utilities General Disclosures [Line Items] |  |  |
Operating revenue from contracts with customers |  | 1,365 | 1,286
Regulated Electric Sales | Commercial |  |  |
Public Utilities General Disclosures [Line Items] |  |  |
Operating revenue from contracts with customers |  | 1,094 | 1,070
Regulated Electric Sales | Industrial |  |  |
Public Utilities General Disclosures [Line Items] |  |  |
Operating revenue from contracts with customers |  | 213 | 220
Regulated Electric Sales | Government and Other Retail |  |  |
Public Utilities General Disclosures [Line Items] |  |  |
Operating revenue from contracts with customers |  | 257 | 244
Regulated Electric Sales | Wholesale |  |  |
Public Utilities General Disclosures [Line Items] |  |  |
Operating revenue from contracts with customers |  | 36 | 44
Nonregulated Electric Sales |  |  |
Public Utilities General Disclosures [Line Items] |  |  |
Operating revenue from contracts with customers |  | 220 | 257
Regulated Gas Sales | Residential |  |  |
Public Utilities General Disclosures [Line Items] |  |  |
Operating revenue from contracts with customers |  | 151 | 136
Regulated Gas Sales | Commercial |  |  |
Public Utilities General Disclosures [Line Items] |  |  |
Operating revenue from contracts with customers |  | 48 | 53
Regulated Gas Sales | Other |  |  |
Public Utilities General Disclosures [Line Items] |  |  |
Operating revenue from contracts with customers |  | 19 | 23
Regulated Gas Transportation and Storage |  |  |
Public Utilities General Disclosures [Line Items] |  |  |
Operating revenue from contracts with customers |  | 4 | 4
Other Regulated Revenues |  |  |
Public Utilities General Disclosures [Line Items] |  |  |
Operating revenue from contracts with customers |  | 88 | 78
Other Nonregulated Revenues |  |  |
Public Utilities General Disclosures [Line Items] |  |  |
Operating revenue from contracts with customers | [2],[3] | 29 | 37
Virginia Electric and Power Company |  |  |
Public Utilities General Disclosures [Line Items] |  |  |
Operating revenue from contracts with customers |  | 2,417 | 2,346
Other revenues | [1],[2] | 72 | 38
Total operating revenue |  | 2,489 | 2,384
Virginia Electric and Power Company | Regulated Electric Sales | Residential |  |  |
Public Utilities General Disclosures [Line Items] |  |  |
Operating revenue from contracts with customers |  | 1,052 | 1,010
Virginia Electric and Power Company | Regulated Electric Sales | Commercial |  |  |
Public Utilities General Disclosures [Line Items] |  |  |
Operating revenue from contracts with customers |  | 881 | 866
Virginia Electric and Power Company | Regulated Electric Sales | Industrial |  |  |
Public Utilities General Disclosures [Line Items] |  |  |
Operating revenue from contracts with customers |  | 106 | 116
Virginia Electric and Power Company | Regulated Electric Sales | Government and Other Retail |  |  |
Public Utilities General Disclosures [Line Items] |  |  |
Operating revenue from contracts with customers |  | 241 | 229
Virginia Electric and Power Company | Regulated Electric Sales | Wholesale |  |  |
Public Utilities General Disclosures [Line Items] |  |  |
Operating revenue from contracts with customers |  | 29 | 29
Virginia Electric and Power Company | Nonregulated Electric Sales |  |  |
Public Utilities General Disclosures [Line Items] |  |  |
Operating revenue from contracts with customers |  | 14 | 11
Virginia Electric and Power Company | Other Regulated Revenues |  |  |
Public Utilities General Disclosures [Line Items] |  |  |
Operating revenue from contracts with customers |  | 84 | 74
Virginia Electric and Power Company | Other Nonregulated Revenues |  |  |
Public Utilities General Disclosures [Line Items] |  |  |
Operating revenue from contracts with customers | [2],[3] | $ 10 | $ 11
[1] | Includes alternative revenue of $28 million and $27 million at both Dominion Energy and Virginia Power for the three months ended March 31, 2024 and 2023, respectively.
[2] | See Note 19 for amounts attributable to affiliates.
[3] | Sales of renewable energy credits were $5 million for both of the three months ended March 31, 2024 and 2023 at Dominion Energy and $2 million and $3 million for the three months ended March 31, 2024 and 2023, respectively, at Virginia Power.

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