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v3.20.4

Operating Segments (Schedule of Segment Reporting Information, by Segment, Virginia Power) (Detail) - USD ($) $ in Millions |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Nov. 30, 2020 | Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenue |  |  | $ 3,521 | $ 3,607 | $ 3,106 | $ 3,938 | $ 3,895 | $ 3,782 | $ 3,443 | $ 3,281 | $ 14,172 |  | $ 14,401 |  | $ 11,199 |
Depreciation, depletion and amortization |  |  |  |  |  |  |  |  |  |  | 2,332 |  | 2,283 |  | 1,660 |
Interest income |  |  |  |  |  |  |  |  |  |  | 107 |  | 97 |  | 80 |
Interest and related charges |  |  |  |  |  |  |  |  |  |  | 1,377 |  | 1,486 |  | 1,279 |
Income tax expense |  | $ 336 |  |  |  |  |  |  |  |  | 83 |  | 209 |  | 522 |
Net income (loss) |  |  | 682 | 356 | (1,169) | (270) | 1,009 | 975 | 54 | (680) | (401) |  | 1,358 |  | 2,447 |
Capital expenditures |  |  |  |  |  |  |  |  |  |  | 6,331 |  | 5,321 |  | 4,405 |
Total assets |  |  | 95,905 |  |  |  | 103,823 |  |  |  | 95,905 |  | 103,823 |  |  |
Dominion Energy Virginia |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenue |  |  |  |  |  |  |  |  |  |  | 7,787 |  | 8,157 |  | 7,849 |
Corporate and Other |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenue |  |  |  |  |  |  |  |  |  |  | 1,163 |  | 832 |  | 629 |
Virginia Electric and Power Company |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenue |  |  | 1,780 | 2,248 | 1,805 | 1,930 | 1,941 | 2,264 | 1,938 | 1,965 | 7,763 | [1] | 8,108 | [1] | 7,619 | [1]
Depreciation, depletion and amortization |  |  |  |  |  |  |  |  |  |  | 1,252 |  | 1,223 |  | 1,132 |
Interest income |  |  |  |  |  |  |  |  |  |  | 11 |  | 11 |  | 10 |
Interest and related charges | [1] |  |  |  |  |  |  |  |  |  | 516 |  | 524 |  | 511 |
Income tax expense |  |  |  |  |  |  |  |  |  |  | 229 |  | 264 |  | 300 |
Net income (loss) |  |  | 336 | $ 475 | $ 490 | $ (280) | 427 | $ 602 | $ 100 | $ 20 | 1,021 |  | 1,149 |  | 1,282 |
Capital expenditures |  |  |  |  |  |  |  |  |  |  | 3,372 |  | 2,981 |  | 2,542 |
Total assets |  |  | 43,654 |  |  |  | 41,428 |  |  |  | 43,654 |  | 41,428 |  |  |
Virginia Electric and Power Company | Dominion Energy Virginia |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenue |  |  |  |  |  |  |  |  |  |  | 7,763 |  | 8,137 |  | 7,835 |
Depreciation, depletion and amortization |  |  |  |  |  |  |  |  |  |  | 1,245 |  | 1,215 |  | 1,157 |
Interest income |  |  |  |  |  |  |  |  |  |  | 11 |  | 11 |  | 10 |
Interest and related charges |  |  |  |  |  |  |  |  |  |  | 524 |  | 529 |  | 516 |
Income tax expense |  |  |  |  |  |  |  |  |  |  | 500 |  | 481 |  | 378 |
Net income (loss) |  |  |  |  |  |  |  |  |  |  | 1,884 |  | 1,783 |  | 1,594 |
Capital expenditures |  |  |  |  |  |  |  |  |  |  | 3,372 |  | 2,981 |  | 2,542 |
Total assets |  |  | 43,700 |  |  |  | 41,400 |  |  |  | 43,700 |  | 41,400 |  |  |
Virginia Electric and Power Company | Corporate and Other |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenue |  |  |  |  |  |  |  |  |  |  | 0 |  | (29) |  | (216) |
Depreciation, depletion and amortization |  |  |  |  |  |  |  |  |  |  | 7 |  | 8 |  | (25) |
Interest income |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Interest and related charges |  |  |  |  |  |  |  |  |  |  | (8) |  | (5) |  | (5) |
Income tax expense |  |  |  |  |  |  |  |  |  |  | (271) |  | (217) |  | (78) |
Net income (loss) |  |  |  |  |  |  |  |  |  |  | (863) |  | (634) |  | (312) |
Capital expenditures |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 |  | $ 0 |
Total assets |  |  | $ 0 |  |  |  | $ 0 |  |  |  | $ 0 |  | $ 0 |  |  |
[1] | See Note 25 for amounts attributable to affiliates.

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