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Accumulated Other Comprehensive Income (Loss) (Tables) | 9 Months Ended
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Sep. 30, 2025
Schedule of Changes in AOCI Net of Tax and Reclassifications out of AOCI by Component | The following tables present Dominion Energy’s changes in AOCI (net of tax) and reclassifications out of AOCI by component:
|  | Total Derivative-Hedging Activities(1)(2) |  |  | Investment Securities(3) |  |  | Pension and other postretirement benefit costs(4)(5) |  |  | Total |
(millions) |  |  |  |  |  |  |  |  |  |  |  |
Three Months Ended September 30, 2025 |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | (172 | ) |  | $ | 3 |  |  | $ | 24 |  |  | $ | (145 | )
Other comprehensive income (loss) before reclassifications: gains (losses) |  |  | (3 | ) |  |  | 6 |  |  |  | — |  |  |  | 3 |
Amounts reclassified from AOCI: (gains) losses |  |  |  |  |  |  |  |  |  |
Interest and related charges |  |  | 10 |  |  |  | — |  |  |  | — |  |  |  | 10 |
Other income (expense) |  |  | — |  |  |  | (1 | ) |  |  | (3 | ) |  |  | (4 | )
Total |  |  | 10 |  |  |  | (1 | ) |  |  | (3 | ) |  |  | 6 |
Income tax expense (benefit) |  |  | (3 | ) |  |  | — |  |  |  | — |  |  |  | (3 | )
Total, net of tax |  |  | 7 |  |  |  | (1 | ) |  |  | (3 | ) |  |  | 3 |
Net current period other comprehensive income (loss) |  |  | 4 |  |  |  | 5 |  |  |  | (3 | ) |  |  | 6 |
Ending balance |  | $ | (168 | ) |  | $ | 8 |  |  | $ | 21 |  |  | $ | (139 | )
Three Months Ended September 30, 2024 |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | (191 | ) |  | $ | (10 | ) |  | $ | 37 |  |  | $ | (164 | )
Other comprehensive income (loss) before reclassifications: gains (losses) |  |  | (7 | ) |  |  | 27 |  |  |  | — |  |  |  | 20 |
Amounts reclassified from AOCI: (gains) losses |  |  |  |  |  |  |  |  |  |
Interest and related charges |  |  | 11 |  |  |  | — |  |  |  | — |  |  |  | 11 |
Other income (expense) |  |  | — |  |  |  | (2 | ) |  |  | (4 | ) |  |  | (6 | )
Total |  |  | 11 |  |  |  | (2 | ) |  |  | (4 | ) |  |  | 5 |
Income tax expense (benefit) |  |  | (3 | ) |  |  | 1 |  |  |  | 1 |  |  |  | (1 | )
Total, net of tax |  |  | 8 |  |  |  | (1 | ) |  |  | (3 | ) |  |  | 4 |
Net current period other comprehensive income (loss) |  |  | 1 |  |  |  | 26 |  |  |  | (3 | ) |  |  | 24 |
Ending balance |  | $ | (190 | ) |  | $ | 16 |  |  | $ | 34 |  |  | $ | (140 | )
(1) Comprised entirely of interest rate derivative hedging activities. (2) Net of $57 million, $58 million, $64 million and $64 million tax at September 30, 2025, June 30, 2025, September 30, 2024 and June 30, 2024, respectively. (3) Net of $(5) million, $— million, $(8) million and $6 million tax at September 30, 2025, June 30, 2025, September 30, 2024 and June 30, 2024, respectively. (4) Comprised entirely of prior service cost. (5) Net of $(7) million, $(8) million, $(10) million and $(11) million tax at September 30, 2025, June 30, 2025, September 30, 2024 and June 30, 2024, respectively.
|  | Total Derivative-Hedging Activities(1)(2) |  |  | Investment Securities(3) |  |  | Pension and other postretirement benefit costs(4)(5) |  |  | Total |
(millions) |  |  |  |  |  |  |  |  |  |  |  |
Nine Months Ended September 30, 2025 |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | (171 | ) |  | $ | (10 | ) |  | $ | 29 |  |  | $ | (152 | )
Other comprehensive income (loss) before reclassifications: gains (losses) |  |  | (19 | ) |  |  | 15 |  |  |  | — |  |  |  | (4 | )
Amounts reclassified from AOCI: (gains) losses |  |  |  |  |  |  |  |  |  |
Interest and related charges |  |  | 30 |  |  |  | — |  |  |  | — |  |  |  | 30 |
Other income (expense) |  |  | — |  |  |  | 4 |  |  |  | (9 | ) |  |  | (5 | )
Total |  |  | 30 |  |  |  | 4 |  |  |  | (9 | ) |  |  | 25 |
Income tax expense (benefit) |  |  | (8 | ) |  |  | (1 | ) |  |  | 1 |  |  |  | (8 | )
Total, net of tax |  |  | 22 |  |  |  | 3 |  |  |  | (8 | ) |  |  | 17 |
Net current period other comprehensive income (loss) |  |  | 3 |  |  |  | 18 |  |  |  | (8 | ) |  |  | 13 |
Ending balance |  | $ | (168 | ) |  | $ | 8 |  |  | $ | 21 |  |  | $ | (139 | )
Nine Months Ended September 30, 2024 |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | (216 | ) |  | $ | 1 |  |  | $ | 43 |  |  | $ | (172 | )
Other comprehensive income (loss) before reclassifications: gains (losses) |  |  | 2 |  |  |  | 10 |  |  |  | — |  |  |  | 12 |
Amounts reclassified from AOCI: (gains) losses |  |  |  |  |  |  |  |  |  |
Interest and related charges |  |  | 33 |  |  |  | — |  |  |  | — |  |  |  | 33 |
Other income (expense) |  |  | — |  |  |  | 6 |  |  |  | (13 | ) |  |  | (7 | )
Total |  |  | 33 |  |  |  | 6 |  |  |  | (13 | ) |  |  | 26 |
Income tax expense (benefit) |  |  | (9 | ) |  |  | (1 | ) |  |  | 4 |  |  |  | (6 | )
Total, net of tax |  |  | 24 |  |  |  | 5 |  |  |  | (9 | ) |  |  | 20 |
Net current period other comprehensive income (loss) |  |  | 26 |  |  |  | 15 |  |  |  | (9 | ) |  |  | 32 |
Ending balance |  | $ | (190 | ) |  | $ | 16 |  |  | $ | 34 |  |  | $ | (140 | )
(1) Comprised entirely of interest rate derivative hedging activities. (2) Net of $57 million, $58 million, $64 million and $73 million tax at September 30, 2025, December 31, 2024, September 30, 2024 and December 31, 2023, respectively. (3) Net of $(5) million, $9 million, $(8) million and $(1) million tax at September 30, 2025, December 31, 2024, September 30, 2024 and December 31, 2023, respectively. (4) Comprised entirely of prior service cost. (5) Net of $(7) million, $(9) million, $(10) million and $(14) million tax at September 30, 2025, December 31, 2024, September 30, 2024 and December 31, 2023, respectively.
Virginia Electric and Power Company |
Schedule of Changes in AOCI Net of Tax and Reclassifications out of AOCI by Component | The following tables present Virginia Power’s changes in AOCI (net of tax) and reclassifications out of AOCI by component:
|  | Total Derivative-Hedging Activities(1)(2) |  |  | Investment Securities(3) |  |  | Total |
(millions) |  |  |  |  |  |  |  |  |
Three Months Ended September 30, 2025 |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | 23 |  |  | $ | — |  |  | $ | 23 |
Other comprehensive income (loss) before reclassifications: gains (losses) |  |  | (2 | ) |  |  | 1 |  |  |  | (1 | )
Amounts reclassified from AOCI: (gains) losses |  |  |  |  |  |  |  |  |
Total |  |  | — |  |  |  | — |  |  |  | — |
Income tax expense (benefit) |  |  | — |  |  |  | — |  |  |  | — |
Total, net of tax |  |  | — |  |  |  | — |  |  |  | — |
Net current period other comprehensive income (loss) |  |  | (2 | ) |  |  | 1 |  |  |  | (1 | )
Ending balance |  | $ | 21 |  |  | $ | 1 |  |  | $ | 22 |
Three Months Ended September 30, 2024 |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | 24 |  |  | $ | — |  |  | $ | 24 |
Other comprehensive income (loss) before reclassifications: gains (losses) |  |  | (7 | ) |  |  | 5 |  |  |  | (2 | )
Amounts reclassified from AOCI: (gains) losses |  |  |  |  |  |  |
Total |  |  | — |  |  |  | — |  |  |  | — |
Income tax expense (benefit) |  |  | — |  |  |  | (1 | ) |  |  | (1 | )
Total, net of tax |  |  | — |  |  |  | (1 | ) |  |  | (1 | )
Net current period other comprehensive income (loss) |  |  | (7 | ) |  |  | 4 |  |  |  | (3 | )
Ending balance |  | $ | 17 |  |  | $ | 4 |  |  | $ | 21 |
(1) Comprised entirely of interest rate derivative hedging activities. (2) Net of $(7) million, $(8) million, $(6) million and $(8) million tax at September 30, 2025, June 30, 2025, September 30, 2024 and June 30, 2024, respectively. (3) Net of $— million, $1 million, $(2) million and $1 million tax at September 30, 2025, June 30, 2025, September 30, 2024 and June 30, 2024, respectively.
|  | Total Derivative-Hedging Activities(1)(2) |  |  | Investment Securities(3) |  |  | Total |
(millions) |  |  |  |  |  |  |  |  |
Nine Months Ended September 30, 2025 |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | 28 |  |  | $ | — |  |  | $ | 28 |
Other comprehensive income (loss) before reclassifications: gains (losses) |  |  | (7 | ) |  |  | 1 |  |  |  | (6 | )
Amounts reclassified from AOCI: (gains) losses |  |  |  |  |  |  |  |  |
Total |  |  | — |  |  |  | — |  |  |  | — |
Income tax expense (benefit) |  |  | — |  |  |  | — |  |  |  | — |
Total, net of tax |  |  | — |  |  |  | — |  |  |  | — |
Net current period other comprehensive income (loss) |  |  | (7 | ) |  |  | 1 |  |  |  | (6 | )
Ending balance |  | $ | 21 |  |  | $ | 1 |  |  | $ | 22 |
Nine Months Ended September 30, 2024 |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | 15 |  |  | $ | 2 |  |  | $ | 17 |
Other comprehensive income (loss) before reclassifications: gains (losses) |  |  | 2 |  |  |  | 1 |  |  |  | 3 |
Amounts reclassified from AOCI: (gains) losses |  |  |  |  |  |  |
Other income (expense) |  |  | — |  |  |  | 2 |  |  |  | 2 |
Total |  |  | — |  |  |  | 2 |  |  |  | 2 |
Income tax expense (benefit) |  |  | — |  |  |  | (1 | ) |  |  | (1 | )
Total, net of tax |  |  | — |  |  |  | 1 |  |  |  | 1 |
Net current period other comprehensive income (loss) |  |  | 2 |  |  |  | 2 |  |  |  | 4 |
Ending balance |  | $ | 17 |  |  | $ | 4 |  |  | $ | 21 |
(1) Comprised entirely of interest rate derivative hedging activities. (2) Net of $(7) million, $(10) million, $(6) million and $(5) million tax at September 30, 2025, December 31, 2024, September 30, 2024 and December 31, 2023, respectively. (3) Net of $— million, $1 million, $(2) million and $1 million tax at September 30, 2025, December 31, 2024, September 30, 2024 and December 31, 2023, respectively.

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- Definition Changes in accumulated other comprehensive income and reclassification out of accumulated other comprehensive income. + References No definition available. + Details
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