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Operating Revenue (Schedule of Operating Revenue) (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Public Utilities General Disclosures [Line Items] |  |  |  |
Operating revenue from contracts with customers |  | $ 14,559 | $ 11,662 | $ 11,551
Other revenues | [1],[2] | (614) | (242) | 368
Total operating revenue |  | 13,945 | 11,420 | 11,919
Regulated Electric Sales | Residential |  |  |  |
Public Utilities General Disclosures [Line Items] |  |  |  |
Operating revenue from contracts with customers |  | 5,261 | 4,509 | 4,833
Regulated Electric Sales | Commercial |  |  |  |
Public Utilities General Disclosures [Line Items] |  |  |  |
Operating revenue from contracts with customers |  | 4,480 | 3,194 | 3,102
Regulated Electric Sales | Industrial |  |  |  |
Public Utilities General Disclosures [Line Items] |  |  |  |
Operating revenue from contracts with customers |  | 901 | 748 | 730
Regulated Electric Sales | Government and Other Retail |  |  |  |
Public Utilities General Disclosures [Line Items] |  |  |  |
Operating revenue from contracts with customers |  | 1,235 | 921 | 868
Regulated Electric Sales | Wholesale |  |  |  |
Public Utilities General Disclosures [Line Items] |  |  |  |
Operating revenue from contracts with customers |  | 234 | 175 | 128
Nonregulated Electric Sales |  |  |  |
Public Utilities General Disclosures [Line Items] |  |  |  |
Operating revenue from contracts with customers |  | 1,249 | 1,005 | 822
Regulated Gas Sales | Residential |  |  |  |
Public Utilities General Disclosures [Line Items] |  |  |  |
Operating revenue from contracts with customers |  | 331 | 322 | 271
Regulated Gas Sales | Commercial |  |  |  |
Public Utilities General Disclosures [Line Items] |  |  |  |
Operating revenue from contracts with customers |  | 188 | 160 | 129
Regulated Gas Sales | Other |  |  |  |
Public Utilities General Disclosures [Line Items] |  |  |  |
Operating revenue from contracts with customers |  | 168 | 108 | 68
Regulated Gas Transportation and Storage |  |  |  |
Public Utilities General Disclosures [Line Items] |  |  |  |
Operating revenue from contracts with customers |  | 38 | 35 | 23
Other Regulated Revenues |  |  |  |
Public Utilities General Disclosures [Line Items] |  |  |  |
Operating revenue from contracts with customers |  | 296 | 248 | 303
Other Nonregulated Revenues |  |  |  |
Public Utilities General Disclosures [Line Items] |  |  |  |
Operating revenue from contracts with customers | [2],[3] | 178 | 237 | 274
Virginia Electric and Power Company |  |  |  |
Public Utilities General Disclosures [Line Items] |  |  |  |
Operating revenue from contracts with customers |  | 9,868 | 7,470 | 7,661
Other revenues | [1],[2] | (214) |  | 102
Total operating revenue |  | 9,654 | 7,470 | 7,763
Virginia Electric and Power Company | Residential |  |  |  |
Public Utilities General Disclosures [Line Items] |  |  |  |
Operating revenue from contracts with customers |  | 4,039 | 3,366 | 3,677
Virginia Electric and Power Company | Commercial |  |  |  |
Public Utilities General Disclosures [Line Items] |  |  |  |
Operating revenue from contracts with customers |  | 3,647 | 2,417 | 2,342
Virginia Electric and Power Company | Industrial |  |  |  |
Public Utilities General Disclosures [Line Items] |  |  |  |
Operating revenue from contracts with customers |  | 472 | 367 | 380
Virginia Electric and Power Company | Government and Other Retail |  |  |  |
Public Utilities General Disclosures [Line Items] |  |  |  |
Operating revenue from contracts with customers |  | 1,172 | 862 | 804
Virginia Electric and Power Company | Regulated Electric Sales | Wholesale |  |  |  |
Public Utilities General Disclosures [Line Items] |  |  |  |
Operating revenue from contracts with customers |  | 132 | 107 | 90
Virginia Electric and Power Company | Nonregulated Electric Sales |  |  |  |
Public Utilities General Disclosures [Line Items] |  |  |  |
Operating revenue from contracts with customers |  | 68 | 44 | 19
Virginia Electric and Power Company | Other Regulated Revenues |  |  |  |
Public Utilities General Disclosures [Line Items] |  |  |  |
Operating revenue from contracts with customers |  | 277 | 234 | 299
Virginia Electric and Power Company | Other Nonregulated Revenues |  |  |  |
Public Utilities General Disclosures [Line Items] |  |  |  |
Operating revenue from contracts with customers | [2],[3] | $ 61 | $ 73 | $ 50
[1] | Includes alternative revenue of $72 million, $44 million and $84 million at both Dominion Energy and Virginia Power for years ended December 31, 2022, 2021 and 2020, respectively.
[2] | See Note 25 for amounts attributable to related parties and affiliates.
[3] | Includes sales of renewable energy credits were $42 million, $33 million and $20 million for the years ended December 31, 2022, 2021 and 2020, respectively, at Dominion Energy and $18 million, $21 million and $11 million for the years ended December 31, 2022, 2021 and 2020, respectively, at Virginia Power.

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