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v3.25.1

Related-Party Transactions (Narrative) (Detail) - USD ($) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024
Related Party Transaction [Line Items] |  |  |  |
Borrowing Interest Charges | $ 14,000,000 |  |  |
Dividend paid | 569,000,000 | $ 559,000,000 |  |
Maximum |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Borrowing Interest Charges |  | $ 1,000,000 |  |
Virginia Electric and Power Company |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Affiliated current borrowings | 1,675,000,000 |  | $ 500,000,000 | [1]
Outstanding borrowings, net of repayments, under money pool for non-regulated subsidiaries | $ 0 |  | 0 |
Issuance of stock (in shares) | 0 | 0 |  |
Dividend declared |  |  | 407,000,000 |
Dividend paid | $ 407,000,000 |  |  |
Virginia Electric and Power Company | Affiliated Entity |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Derivative assets | 30,000,000 |  | 19,000,000 |
Derivative liabilities | 3,000,000 |  | 17,000,000 |
Virginia Electric and Power Company | Affiliated Entity | Pension Benefits | Amounts Associated With Dominion Pension Plan |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Other deferred credits and other liabilities | 527,000,000 |  | 505,000,000 |
Virginia Electric and Power Company | Affiliated Entity | Medical Coverage for Local retirees | Amounts Associated with the Dominion Retiree Health and Welfare Plan |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Amounts due from Dominion, noncurrent | 675,000,000 |  | 663,000,000 |
Virginia Electric and Power Company | Principal Owner | Short-Term Borrowing Arrangements |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Affiliated current borrowings | $ 1,700,000,000 |  | $ 500,000,000 |
[1] | Virginia Power’s Consolidated Balance Sheet at December 31, 2024 has been derived from the audited Consolidated Balance Sheet at that date.

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