v3.26.3
Operating Revenue (Schedule of Operating Revenue) (Detail) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers $ 5,592 $ 4,510 $ 15,139 $ 12,313
Other revenues [1],[2] 25 17 (23) 100
Total operating revenue 5,617 4,527 15,116 12,413
Regulated Electric Sales | Residential        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 2,157 1,712 5,527 4,628
Regulated Electric Sales | Commercial        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 1,404 1,164 3,567 3,006
Regulated Electric Sales | High Load        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers [3] 706 503 2,156 1,308
Regulated Electric Sales | Industrial        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 276 205 660 546
Regulated Electric Sales | Government and Other Retail        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 384 344 1,101 954
Regulated Electric Sales | Wholesale        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 60 54 174 135
Nonregulated Electric Sales        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 343 295 1,035 905
Regulated Gas Sales | Residential        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 34 32 268 249
Regulated Gas Sales | Commercial        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 27 24 111 105
Regulated Gas Sales | Other        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 7 7 23 39
Regulated Gas Transportation and Storage        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 11 10 32 26
Other Regulated Revenue        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 107 100 243 243
Other Nonregulated Revenues        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers [2],[4],[5] 76 60 242 169
Virginia Electric and Power Company        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 4,179 3,279 11,153 8,690
Other revenues [1],[2] 39 32 182 98
Total operating revenue 4,218 3,311 11,335 8,788
Virginia Electric and Power Company | Regulated Electric Sales | Residential        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 1,631 1,279 4,287 3,494
Virginia Electric and Power Company | Regulated Electric Sales | Commercial        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 1,092 890 2,778 2,284
Virginia Electric and Power Company | Regulated Electric Sales | High Load        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers [3] 706 503 2,156 1,308
Virginia Electric and Power Company | Regulated Electric Sales | Industrial        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 147 90 307 224
Virginia Electric and Power Company | Regulated Electric Sales | Government and Other Retail        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 363 324 1,046 900
Virginia Electric and Power Company | Regulated Electric Sales | Wholesale        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 39 41 132 107
Virginia Electric and Power Company | Nonregulated Electric Sales        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 77 40 152 105
Virginia Electric and Power Company | Other Regulated Revenue        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers 102 96 228 230
Virginia Electric and Power Company | Other Nonregulated Revenues        
Public Utilities General Disclosures [Line Items]        
Operating revenue from contracts with customers [2],[4],[5] $ 22 $ 16 $ 67 $ 38
[1] Includes alternative revenue of $38 million and $35 million for the three months ended September 30, 2026 and 2025, respectively, and $174 million and $117 million for the nine months ended September 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 $13 million and $23 million for the three months ended September 30, 2026 and 2025, respectively, and $61 million and $74 million for the nine months ended September 30, 2026 and 2025, respectively, at Dominion Energy.
[5] Includes sales of renewable energy credits of $28 million and $8 million for the three months ended September 30, 2026 and 2025, respectively, and $78 million and $23 million for the nine months ended September 30, 2026 and 2025, respectively, at Dominion Energy and $7 million and $4 million for the three months ended September 30, 2026 and 2025, respectively, and $18 million and $10 million for the nine months ended September 30, 2026 and 2025, respectively, at Virginia Power.