v3.25.2
Operating Segments (Schedule of Segment Reporting Information, by Segment, Virginia Power) (Detail) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Segment Reporting Information [Line Items]          
Operating Revenue $ 3,810 $ 3,486 $ 7,886 $ 7,118  
Electric fuel and other energy-related purchases 946 [1] 918 [1] 1,908 [2] 1,877 [2]  
Purchased electric capacity 18 [1] 21 [1] 27 [2] 33 [2]  
Other operations and maintenance 933 [1],[3] 907 [1],[3] 1,877 [2],[4] 1,792 [2],[4]  
Depreciation and amortization 580 [1] 621 [1] 1,162 [2] 1,242 [2]  
Other taxes 194 [1] 170 [1] 403 [2] 372 [2]  
Total operating expenses 2,714 2,681 5,567 5,480  
Interest and related charges 505 [1] 470 [1] 986 [2] 1,045 [2]  
Income tax expense (benefit) 220 [1] 112 [1] 260 [2] 208 [2]  
Other income (expense) 409 [5] 230 [5] 386 [6] 296 [6]  
Interest income 34 [5] 14 [5] 74 [6] 71 [6]  
Noncontrolling Interests 54 [5] 0 100 [6] 0  
Net Income (Loss) 760 563 1,425 966  
Capital expenditures     6,226 5,921  
Total assets 107,441   107,441   $ 102,415 [7]
Virginia Electric and Power Company          
Segment Reporting Information [Line Items]          
Operating Revenue [8] 2,712 2,537 5,477 5,026  
Electric fuel and other energy-related purchases [8] 729 [9] 707 [9] 1,498 [10] 1,408 [10]  
Purchased electric capacity 17 [9] 16 [9] 24 [10] 29 [10]  
Other operations and maintenance 603 [9],[11] 535 [9],[11] 1,259 [10],[12] 1,049 [10],[12]  
Depreciation and amortization 396 [9] 445 [9] 794 [10] 893 [10]  
Other taxes 92 [9] 72 [9] 189 [10] 165 [10]  
Total operating expenses 1,837 1,775 3,764 3,544  
Interest and related charges [8] 251 [9] 204 [9] 494 [10] 394 [10]  
Income tax expense (benefit) 115 [9] 120 [9] 205 [10] 253 [10]  
Other income (expense) 75 [13] 37 [13] 94 [14] 87 [14]  
Interest income 5 [13] 2 [13] 12 [14] 16 [14]  
Noncontrolling Interests 54 [13] 0 100 [14] 0  
Net Income (Loss) 535 477 1,020 938  
Capital expenditures     5,233 4,572  
Total assets 73,096   73,096   $ 68,387 [15]
Dominion Energy Virginia | Virginia Electric and Power Company          
Segment Reporting Information [Line Items]          
Operating Revenue 2,712 2,537 5,506 5,026  
Electric fuel and other energy-related purchases 729 [9] 707 [9] 1,498 [10] 1,408 [10]  
Purchased electric capacity 17 [9] 16 [9] 24 [10] 29 [10]  
Other operations and maintenance 531 [9],[11] 522 [9],[11] 1,090 [10],[12] 1,055 [10],[12]  
Depreciation and amortization 396 [9] 444 [9] 793 [10] 889 [10]  
Other taxes 92 [9] 71 [9] 189 [10] 164 [10]  
Total operating expenses 1,765 1,760 3,594 3,545  
Interest and related charges 252 [9] 206 [9] 497 [10] 398 [10]  
Income tax expense (benefit) 110 [9] 117 [9] 243 [10] 234 [10]  
Other income (expense) 39 [13] 29 [13] 74 [14] 50 [14]  
Interest income 5 [13] 2 [13] 12 [14] 10 [14]  
Noncontrolling Interests 80 [13]   148 [14]    
Net Income (Loss) 549 485 1,110 909  
Capital expenditures     5,233 4,572  
Total assets 73,100   73,100    
Corporate and Other | Virginia Electric and Power Company          
Segment Reporting Information [Line Items]          
Operating Revenue 0 0 (29) 0  
Electric fuel and other energy-related purchases 0 [9] 0 [9] 0 [10] 0 [10]  
Purchased electric capacity 0 [9] 0 [9] 0 [10] 0 [10]  
Other operations and maintenance 72 [9],[11] 13 [9],[11] 169 [10],[12] (6) [10],[12]  
Depreciation and amortization 0 [9] 1 [9] 1 [10] 4 [10]  
Other taxes 0 [9] 1 [9] 0 [10] 1 [10]  
Total operating expenses 72 15 170 (1)  
Interest and related charges (1) [9] (2) [9] (3) [10] (4) [10]  
Income tax expense (benefit) 5 [9] 3 [9] (38) [10] 19 [10]  
Other income (expense) 36 [13] 8 [13] 20 [14] 37 [14]  
Interest income 0 [13] 0 [13] 0 [14] 6 [14]  
Noncontrolling Interests (26) [13]   (48) [14]    
Net Income (Loss) (14) $ (8) (90) 29  
Capital expenditures     0 $ 0  
Total assets $ 0   $ 0    
[1] The significant expense categories and amounts in the segment information presented above align with the segment-level information that is regularly provided to Dominion Energy’s CODM.
[2] The significant expense categories and amounts in the segment information presented above align with the segment-level information that is regularly provided to Dominion Energy’s CODM.
[3] Includes impairment of assets and other charges.
[4] Includes impairment of assets and other charges.
[5] Items designated are other segment items for each reportable segment.
[6] Items designated are other segment items for each reportable segment.
[7] Dominion Energy’s Consolidated Balance Sheet at December 31, 2024 has been derived from the audited Consolidated Balance Sheet at that date.
[8] See Note 19 for amounts attributable to affiliates.
[9] The significant expense categories and amounts in the segment information presented above align with the segment-level information that is regularly provided to Virginia Power’s CODM.
[10] The significant expense categories and amounts in the segment information presented above align with the segment-level information that is regularly provided to Virginia Power’s CODM.
[11] Includes impairment of assets and other charges (benefits).
[12] Includes impairment of assets and other charges (benefits).
[13] Items designated are other segment items for each reportable segment.
[14] Items designated are other segment items for each reportable segment.
[15] Virginia Power’s Consolidated Balance Sheet at December 31, 2024 has been derived from the audited Consolidated Balance Sheet at that date.