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Operating Segments (Schedule of Segment Reporting Information, by Segment, Virginia Power) (Detail) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2024 | Sep. 30, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenue |  | $ 3,400 | $ 3,941 | $ 3,486 | $ 3,632 | $ 3,534 | $ 3,810 | $ 3,166 | $ 3,883 | $ 14,459 |  | $ 14,393 |  | $ 13,938 |
Electric fuel and other energy-related purchases |  |  |  |  |  |  |  |  |  | 3,614 | [1] | 3,935 | [2] | 3,711 | [3]
Purchased electric capacity |  |  |  |  |  |  |  |  |  | 74 | [1] | 55 | [2] | 59 | [3]
Other operations and maintenance |  |  |  |  |  |  |  |  |  | 4,188 | [1],[4] | 3,440 | [2],[5] | 5,178 | [3],[6]
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 2,345 | [1] | 2,580 | [2] | 2,442 | [3]
Other taxes |  |  |  |  |  |  |  |  |  | 731 | [1] | 684 | [2] | 675 | [3]
Total operating expenses |  |  |  |  |  |  |  |  |  | 11,212 |  | 10,979 |  | 12,491 |
Interest and related charges (benefit) |  |  |  |  |  |  |  |  |  | 1,887 | [1] | 1,674 | [2] | 1,002 | [3]
Income tax expense (benefit) |  |  |  |  |  |  |  |  |  | 308 | [1] | 568 | [2] | 59 | [3]
Other income (expense) |  |  |  |  |  |  |  |  |  | 694 | [7] | 903 | [8] | (247) | [9]
Interest income |  |  |  |  |  |  |  |  |  | 125 | [7] | 107 | [8] | 109 | [9]
Noncontrolling Interests |  | (53) | 0 | 0 | 0 |  |  |  |  | (53) |  | 0 |  | 0 |
Net Income (Loss) |  | 145 | $ 958 | $ 580 | $ 441 | 331 | $ 153 | $ 575 | $ 972 | 2,124 |  | 2,031 |  | 1,191 |
Capital expenditures |  |  |  |  |  |  |  |  |  | 12,427 |  | 10,235 |  | 7,758 |
Total assets (billions) |  | 102,415 |  |  |  | 109,080 |  |  |  | 102,415 |  | 109,080 |  |  |
Virginia Electric and Power Company |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenue | [10] |  |  |  |  |  |  |  |  | 10,235 |  | 9,573 |  | 9,654 |
Electric fuel and other energy-related purchases | [10],[11] |  |  |  |  |  |  |  |  | 2,743 |  | 2,918 |  | 2,913 |
Purchased electric capacity | [11] |  |  |  |  |  |  |  |  | 68 |  | 46 |  | 46 |
Other operations and maintenance | [11],[12] |  |  |  |  |  |  |  |  | 2,529 |  | 1,966 |  | 2,608 |
Depreciation and amortization | [11] |  |  |  |  |  |  |  |  | 1,644 |  | 1,871 |  | 1,736 |
Other taxes | [11] |  |  |  |  |  |  |  |  | 333 |  | 298 |  | 303 |
Total operating expenses |  |  |  |  |  |  |  |  |  | 7,317 |  | 7,099 |  | 7,606 |
Interest and related charges (benefit) | [10],[11] |  |  |  |  |  |  |  |  | 848 |  | 764 |  | 642 |
Income tax expense (benefit) | [11] |  |  |  |  |  |  |  |  | 408 |  | 389 |  | 294 |
Other income (expense) | [13] |  |  |  |  |  |  |  |  | 169 |  | 116 |  | (17) |
Interest income | [13] |  |  |  |  |  |  |  |  | 26 |  | 15 |  | 17 |
Noncontrolling Interests |  |  |  |  |  |  |  |  |  | (53) | [13] | 0 |  | 0 |
Net Income (Loss) |  |  |  |  |  |  |  |  |  | 1,910 |  | 1,452 |  | 1,112 |
Capital expenditures |  |  |  |  |  |  |  |  |  | 9,968 |  | 7,196 |  | 5,187 |
Total assets (billions) |  | 68,387 |  |  |  | 58,618 |  |  |  | 68,387 |  | 58,618 |  |  |
Virginia Electric and Power Company | Dominion Energy Virginia |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenue |  |  |  |  |  |  |  |  |  | 10,235 |  | 9,573 |  | 9,643 |
Electric fuel and other energy-related purchases | [11] |  |  |  |  |  |  |  |  | 2,743 |  | 2,918 |  | 2,913 |
Purchased electric capacity | [11] |  |  |  |  |  |  |  |  | 68 |  | 46 |  | 38 |
Other operations and maintenance | [11],[12] |  |  |  |  |  |  |  |  | 2,217 |  | 1,842 |  | 1,956 |
Depreciation and amortization | [11] |  |  |  |  |  |  |  |  | 1,635 |  | 1,622 |  | 1,452 |
Other taxes | [11] |  |  |  |  |  |  |  |  | 332 |  | 298 |  | 301 |
Total operating expenses |  |  |  |  |  |  |  |  |  | 6,995 |  | 6,726 |  | 6,660 |
Interest and related charges (benefit) | [11] |  |  |  |  |  |  |  |  | 856 |  | 772 |  | 645 |
Income tax expense (benefit) | [11] |  |  |  |  |  |  |  |  | 443 |  | 471 |  | 514 |
Other income (expense) | [13] |  |  |  |  |  |  |  |  | 100 |  | 65 |  | 64 |
Interest income | [13] |  |  |  |  |  |  |  |  | 20 |  | 15 |  | 17 |
Noncontrolling Interests | [13] |  |  |  |  |  |  |  |  | 50 |  |  |  |  |
Net Income (Loss) |  |  |  |  |  |  |  |  |  | 2,011 |  | 1,684 |  | 1,905 |
Capital expenditures |  |  |  |  |  |  |  |  |  | 9,968 |  | 7,196 |  | 5,187 |
Total assets (billions) |  | 68,400 |  |  |  | 58,600 |  |  |  | 68,400 |  | 58,600 |  |  |
Virginia Electric and Power Company | Corporate and Other |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenue |  |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 11 |
Electric fuel and other energy-related purchases | [11] |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Purchased electric capacity | [11] |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 8 |
Other operations and maintenance | [11],[12] |  |  |  |  |  |  |  |  | 312 |  | 124 |  | 652 |
Depreciation and amortization | [11] |  |  |  |  |  |  |  |  | 9 |  | 249 |  | 284 |
Other taxes | [11] |  |  |  |  |  |  |  |  | 1 |  | 0 |  | 2 |
Total operating expenses |  |  |  |  |  |  |  |  |  | 322 |  | 373 |  | 946 |
Interest and related charges (benefit) | [11] |  |  |  |  |  |  |  |  | (8) |  | (8) |  | (3) |
Income tax expense (benefit) | [11] |  |  |  |  |  |  |  |  | (35) |  | (82) |  | (220) |
Other income (expense) | [13] |  |  |  |  |  |  |  |  | 69 |  | 51 |  | (81) |
Interest income | [13] |  |  |  |  |  |  |  |  | 6 |  | 0 |  | 0 |
Noncontrolling Interests | [13] |  |  |  |  |  |  |  |  | (103) |  |  |  |  |
Net Income (Loss) |  |  |  |  |  |  |  |  |  | (101) |  | (232) |  | (793) |
Capital expenditures |  |  |  |  |  |  |  |  |  | 0 |  | 0 |  | $ 0 |
Total assets (billions) |  | $ 0 |  |  |  | $ 0 |  |  |  | $ 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] | 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.
[4] | Includes impairment of assets and other charges (benefits) and losses (gains) on sale of assets.
[5] | Includes impairment of assets and other charges (benefits) and losses (gains) on sale of assets.
[6] | Includes impairment of assets and other charges (benefits) and losses (gains) on sale of assets.
[7] | Items designated are other segment items for each reportable segment.
[8] | Items designated are other segment items for each reportable segment.
[9] | Items designated are other segment items for each reportable segment.
[10] | See Note 25 for amounts attributable to affiliates.
[11] | 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.
[12] | Includes impairment of assets and other charges (benefits).
[13] | Items designated are other segment items for each reportable segment.

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