Nature of Operations	12 Months Ended
Dec. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Operations	NOTE 1. NATURE OF OPERATIONS Dominion Energy, headquartered in Richmond, Virginia, is one of the nation’s leading developers and operators of regulated offshore wind and solar power and the largest producer of carbon-free electricity in New England, and serves primarily electric utility customers in Virginia, North Carolina and South Carolina through its subsidiaries, Virginia Power and DESC. Dominion Energy also has nonregulated operations that consist primarily of long-term contracted electric generation operations. In connection with the comprehensive business review concluded in March 2024, Dominion Energy sold all of its regulated gas distribution operations, except for DESC’s, to Enbridge through the East Ohio Transaction (completed in March 2024), the Questar Gas Transaction (completed in May 2024) and the PSNC Transaction (completed in September 2024). In addition in September 2023, Dominion Energy completed the sale of its remaining 50% noncontrolling partnership interest in Cove Point to BHE. As discussed in Notes 3 and 9, these operations as well as certain solar generation facility development operations are reflected as discontinued operations in Dominion Energy's Consolidated Financial Statements. Dominion Energy manages its daily operations through three primary operating segments: Dominion Energy Virginia, Dominion Energy South Carolina and Contracted Energy. Dominion Energy also reports a Corporate and Other segment, which includes its corporate, service company and other functions (including unallocated debt) as well as its noncontrolling interest in Dominion Privatization, its noncontrolling interest in Wrangler (through March 2022) and Hope (through August 2022). In addition, Corporate and Other includes specific items attributable to Dominion Energy’s operating segments that are not included in profit measures evaluated by executive management in assessing the operating segments’ performance or in allocating resources including the net impact of the operations reflected as discontinued operations, which in addition to the operations discussed above includes Dominion Energy’s noncontrolling interest in Atlantic Coast Pipeline. See Notes 3 and 9 for additional information. Virginia Power is a regulated public utility that generates, transmits and distributes electricity for sale in Virginia and North Carolina. Virginia Power is a member of PJM, an RTO, and its electric transmission facilities are integrated into the PJM wholesale electricity markets. All of Virginia Power’s stock is owned by Dominion Energy. Virginia Power manages its daily operations through one primary operating segment: Dominion Energy Virginia. It also reports a Corporate and Other segment that primarily includes specific items attributable to its operating segment that are not included in profit measures evaluated by executive management in assessing the segment’s performance or in allocating resources. See Note 26 for further discussion of the Companies’ operating segments.

Nature of Operations

12 Months Ended

Dec. 31, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

NOTE 1. NATURE OF OPERATIONS

Dominion Energy, headquartered in Richmond, Virginia, is one of the nation’s leading developers and operators of regulated offshore wind and solar power and the largest producer of carbon-free electricity in New England, and serves primarily electric utility customers in Virginia, North Carolina and South Carolina through its subsidiaries, Virginia Power and DESC. Dominion Energy also has nonregulated operations that consist primarily of long-term contracted electric generation operations.

In connection with the comprehensive business review concluded in March 2024, Dominion Energy sold all of its regulated gas distribution operations, except for DESC’s, to Enbridge through the East Ohio Transaction (completed in March 2024), the Questar Gas Transaction (completed in May 2024) and the PSNC Transaction (completed in September 2024). In addition in September 2023, Dominion Energy completed the sale of its remaining 50% noncontrolling partnership interest in Cove Point to BHE. As discussed in Notes 3 and 9, these operations as well as certain solar generation facility development operations are reflected as discontinued operations in Dominion Energy's Consolidated Financial Statements.

Dominion Energy manages its daily operations through three primary operating segments: Dominion Energy Virginia, Dominion Energy South Carolina and Contracted Energy. Dominion Energy also reports a Corporate and Other segment, which includes its corporate, service company and other functions (including unallocated debt) as well as its noncontrolling interest in Dominion Privatization, its noncontrolling interest in Wrangler (through March 2022) and Hope (through August 2022). In addition, Corporate and Other includes specific items attributable to Dominion Energy’s operating segments that are not included in profit measures evaluated by executive management in assessing the operating segments’ performance or in allocating resources including the net impact of the operations reflected as discontinued operations, which in addition to the operations discussed above includes Dominion Energy’s noncontrolling interest in Atlantic Coast Pipeline. See Notes 3 and 9 for additional information.

Virginia Power is a regulated public utility that generates, transmits and distributes electricity for sale in Virginia and North Carolina. Virginia Power is a member of PJM, an RTO, and its electric transmission facilities are integrated into the PJM wholesale electricity markets. All of Virginia Power’s stock is owned by Dominion Energy.

Virginia Power manages its daily operations through one primary operating segment: Dominion Energy Virginia. It also reports a Corporate and Other segment that primarily includes specific items attributable to its operating segment that are not included in profit measures evaluated by executive management in assessing the segment’s performance or in allocating resources.

See Note 26 for further discussion of the Companies’ operating segments.