v3.25.2
Significant Accounting Policies (Reconciliation of Total Cash, Restricted Cash and Equivalents) (Detail) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Jun. 30, 2024
Dec. 31, 2023
Cash Cash Equivalents And Restricted Cash [Line Items]        
Cash and cash equivalents [1] $ 344 $ 310 $ 140 $ 217 [2]
Cash and cash equivalents [3] 344 310 [4]    
Restricted cash and equivalents [2],[5],[6] 69 55 67 84
Restricted cash and equivalents       4
Cash, restricted cash and equivalents shown in the Consolidated Statements of Cash Flows 413 365 207 301
Virginia Electric and Power Company        
Cash Cash Equivalents And Restricted Cash [Line Items]        
Cash and cash equivalents 157 [7] 160 [7],[8] 41 90
Restricted cash and equivalents [2],[6] 61 46 45  
Cash, restricted cash and equivalents shown in the Consolidated Statements of Cash Flows $ 218 $ 206 $ 86 $ 90
[1] At June 30, 2024 and December 31, 2023, Dominion Energy had $1 million and $33 million, respectively, of cash and cash equivalents included in assets held for sale.
[2] Unless otherwise noted, restricted cash and equivalents balances are presented within other current assets in the Companies’ Consolidated Balance Sheets.
[3] See Note 15 for amounts attributable to VIEs.
[4] Dominion Energy’s Consolidated Balance Sheet at December 31, 2024 has been derived from the audited Consolidated Balance Sheet at that date.
[5] At June 30, 2024 and December 31, 2023, Dominion Energy had less than $1 million and $4 million, respectively, of restricted cash and equivalents included in assets held for sale.
[6] Includes $51 million, $41 million and $40 million at VPFS attributable to VIEs at June 30, 2025, December 31, 2024 and June 30, 2024, respectively.
[7] See Note 15 for amounts attributable to VIEs.
[8] Virginia Power’s Consolidated Balance Sheet at December 31, 2024 has been derived from the audited Consolidated Balance Sheet at that date.