v3.26.1
Operating Revenue (Schedule of Operating Revenue) (Detail) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers $ 4,456 $ 3,718 $ 9,547 $ 7,803
Other revenues [1],[2] 24 92 (48) 83
Total operating revenue 4,480 3,810 9,499 7,886
Regulated Electric Sales | Residential        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 1,523 1,347 3,370 2,916
Regulated Electric Sales | Commercial        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 983 956 2,163 1,842
Regulated Electric Sales | High Load        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers [3] 814 422 1,450 805
Regulated Electric Sales | Industrial        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 199 178 384 341
Regulated Electric Sales | Government and Other Retail        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 318 302 717 610
Regulated Electric Sales | Wholesale        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 46 38 114 81
Nonregulated Electric Sales        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 255 238 692 610
Regulated Gas Sales | Residential        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 50 45 234 217
Regulated Gas Sales | Commercial        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 32 28 84 81
Regulated Gas Sales | Other        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 8 5 16 32
Regulated Gas Transportation and Storage        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 10 10 21 16
Other Regulated Revenue        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 136 99 136 143
Other Nonregulated Revenues        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers [2],[4],[5] 82 50 166 109
Virginia Electric and Power Company        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 3,326 2,660 6,974 5,411
Other revenues [1],[2] 95 52 143 66
Total operating revenue 3,421 2,712 7,117 5,477
Virginia Electric and Power Company | Regulated Electric Sales | Residential        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 1,164 991 2,656 2,215
Virginia Electric and Power Company | Regulated Electric Sales | Commercial        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 732 719 1,686 1,394
Virginia Electric and Power Company | Regulated Electric Sales | High Load        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers [3] 814 422 1,450 805
Virginia Electric and Power Company | Regulated Electric Sales | Industrial        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 83 68 160 134
Virginia Electric and Power Company | Regulated Electric Sales | Government and Other Retail        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 302 285 683 576
Virginia Electric and Power Company | Regulated Electric Sales | Wholesale        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 34 29 93 66
Virginia Electric and Power Company | Nonregulated Electric Sales        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 43 42 75 65
Virginia Electric and Power Company | Other Regulated Revenue        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 131 95 126 134
Virginia Electric and Power Company | Other Nonregulated Revenues        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers [2],[4],[5] $ 23 $ 9 $ 45 $ 22
[1] Includes alternative revenue of $90 million and $60 million for the three months ended June 30, 2026 and 2025, respectively, and $136 million and $82 million for the six months ended June 30, 2026 and 2025, respectively, at both Dominion Energy and Virginia Power.
[2] See Note 18 for amounts attributable to affiliates.
[3] Represents customers in Virginia, including certain data centers, with actual or anticipated forecast demand of 25 MW or higher and annual load factor of 75% or higher.
[4] Includes revenue from transition services agreements of $21 million and $24 million for the three months ended June 30, 2026 and 2025, respectively, and $48 million and $51 million for the six months ended June 30, 2026 and 2025, respectively, at Dominion Energy.
[5] Includes sales of renewable energy credits of $27 million and $5 million for the three months ended June 30, 2026 and 2025, respectively, and $50 million and $15 million for the six months ended June 30, 2026 and 2025, respectively, at Dominion Energy and $6 million and $2 million for the three months ended June 30, 2026 and 2025, respectively, and $11 million and $6 million for the six months ended June 30, 2026 and 2025, respectively, at Virginia Power.