Application date of public utilities transmission.

No definition available.

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- Definition

Asset impairment charge (benefit).

+ References

No definition available.

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- Definition

Asset impairment charge (benefit), after tax.

+ References

No definition available.

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- Definition

Common stock shares authorized amount but unissued.

+ References

No definition available.

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- Definition

Kilo Volt Line.

+ References

No definition available.

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- Definition

Percentage of energy efficiency target based on energy savings from previous year baseline.

+ References

No definition available.

+ Details

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- Definition

Percentage of energy savings target for next twelve months

+ References

No definition available.

+ Details

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- Definition

Percentage of energy savings target for three year.

+ References

No definition available.

+ Details

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- Definition

Percentage of energy savings target for two year

+ References

No definition available.

+ Details

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- Definition

Power generation, targeted capacity provided by legislation.

+ References

No definition available.

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- Definition

Proposed increase (decrease) in annual base fuel component recoveries.

+ References

No definition available.

+ Details

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- Definition

Public energy efficiency programs cost rate adjustment approval request to recover amount.

+ References

No definition available.

+ Details

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- Definition

Public utilities actual earned return on equity percentage.

+ References

No definition available.

+ Details

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- Definition

Public utilities approved base rate increase (decrease) amount effective January 2027.

+ References

No definition available.

+ Details

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- Definition

Public utilities approved base rate increase (decrease) amount Effective January 2026.

+ References

No definition available.

+ Details

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- Definition

Public utilities authorized return on equity percentage.

+ References

No definition available.

+ Details

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- Definition

Public utilities base rate increase (decrease) effective January 2027.

+ References

No definition available.

+ Details

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- Definition

Public utilities base rate increase (decrease) effective January 2026.

+ References

No definition available.

+ Details

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- Definition

Public utilities, length of transmission line.

+ References

No definition available.

+ Details

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- Definition

Public utilities operating expense estimated fuel expenses under recovered balance.

+ References

No definition available.

+ Details

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- Definition

Public utilities, property, plant and equipment, expected cost of construction.

+ References

No definition available.

+ Details

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- Definition

Public utilities property plant and equipment requested cost of construction.

+ References

No definition available.

+ Details

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- Definition

Public utilities, proposed capital investment.

+ References

No definition available.

+ Details

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- Definition

Public utilities, proposed operations and maintenance investment.

+ References

No definition available.

+ Details

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- Definition

Public utilities, purchased capacity expense.

+ References

No definition available.

+ Details

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- Definition

Public Utilities, Requested Rate, Amount

+ References

No definition available.

+ Details

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- Definition

Public utilities, start date of proposed rate in month and year.

+ References

No definition available.

+ Details

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- Definition

Face amount per share of no-par value common stock.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Percentage of public utility's requested equity to capital, including debt and equity.

+ References

No definition available.

+ Details

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- Definition

Amount of public utility's requested rate increase (decrease) with regulatory agency.

+ References

No definition available.

+ Details

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- Definition

Percentage of public utility's requested return on equity.

+ References

No definition available.

+ Details

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Regulatory Matters (Narrative) (Detail)	1 Months Ended							3 Months Ended	6 Months Ended
Regulatory Matters (Narrative) (Detail)	Jun. 30, 2025 USD ($)	Mar. 31, 2025 USD ($) MW	Feb. 28, 2025	Jan. 31, 2025 USD ($)	Dec. 31, 2024 USD ($) mi kV	Oct. 31, 2024 USD ($) MW	Apr. 30, 2020	Mar. 31, 2024 USD ($)	Jun. 30, 2025 USD ($)	Apr. 30, 2025 USD ($) $ / shares
Targeted To Reach By End Of Year Five [Member]
Public Utilities General Disclosures [Line Items]
Energy efficiency target percentage. based on energy savings from 2019 baseline							5.00%
Virginia Regulation \| 2025 Biennial Review
Public Utilities General Disclosures [Line Items]
Approved base rate increase effective January 2026									$ 458,000,000
Approved base rate increase effective January 2027									$ 173,000,000
Percentage of earned return									7.77%
Authorized return percentage									9.70%
Base rate increase effective January 2026									$ 822,000,000
Base rate increase effective January 2027									$ 345,000,000
Proposed base rates reflect an ROE									52.10%
Common equity capitalization to total capitalization ratio									10.40%
Virginia Electric and Power Company
Public Utilities General Disclosures [Line Items]
Common stock shares authorized but unissued shares										$ 3,500,000,000
Common stock par value \| $ / shares										$ 0
Percentage of energy savings target for 2026			3.00%
Percentage of energy savings target for 2027			4.00%
Percentage of energy savings target for 2028			5.00%
Virginia Electric and Power Company \| Impairment of Assets and Other Charges
Public Utilities General Disclosures [Line Items]
Impairment of assets and other charges (benefits)								$ (17,000,000)
Impairment of assets and other charges (benefits) after tax								$ (12,000,000)
Virginia Electric and Power Company \| Utility Scale Solar
Public Utilities General Disclosures [Line Items]
Proposed cost of project						$ 605,000,000
Targeted capacity provided by legislation \| MW						208
Virginia Electric and Power Company \| GTSA Filing
Public Utilities General Disclosures [Line Items]
Proposed capital investment		$ 278,000,000
Proposed operations and maintenance investment		5,000,000
Virginia Electric and Power Company \| Chesterfield Energy Reliability Center
Public Utilities General Disclosures [Line Items]
Proposed cost of project		$ 1,500,000,000
Targeted capacity provided by legislation \| MW		944
Virginia Electric and Power Company \| Virginia Regulation \| Annual Fuel Factor
Public Utilities General Disclosures [Line Items]
Total revenue requirement		$ 2,600,000,000
Rate year beginning		2024-07
Increase (decrease) in revenue requirement		$ 860,000,000
Estimated under-recovered balances		205,000,000
Purchased capacity expense		$ 120,000,000
Dominion Energy South Carolina Inc \| Natural Gas Rates
Public Utilities General Disclosures [Line Items]
Total revenue requirement	$ 596,000,000
Base rate increase effective January 2026	$ 17,000,000
Dominion Energy South Carolina Inc \| South Carolina Regulation \| Electric DSM Programs
Public Utilities General Disclosures [Line Items]
Public energy efficiency programs cost rate adjustment approval request to recover amount				$ 46,000,000
Dominion Energy South Carolina Inc \| South Carolina Regulation \| Cost of Fuel
Public Utilities General Disclosures [Line Items]
Rate year beginning			2025-05
Application date			2025-02
Proposed increase (decrease) in annual base fuel component recoveries									$ 154,000,000
Dominion Energy South Carolina Inc \| South Carolina Regulation \| Electric Transmission Projects
Public Utilities General Disclosures [Line Items]
Application date					2024-12
Type of Line \| kV					230
Miles of Lines \| mi					17
Cost Estimate					$ 55,000,000