Business combination acquisition related costs net of tax.

No definition available.

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- Definition

Charge for utility plant net acquired but committed to forgo recovery.

+ References

No definition available.

+ Details

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- Definition

Charge for utility plant net but committed to forgo recovery, after tax.

+ References

No definition available.

+ Details

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- Definition

Customer refundable fees refund payments after tax.

+ References

No definition available.

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- Definition

Litigation settlement expense net of tax.

+ References

No definition available.

+ Details

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- Definition

Regulatory assets, net of deferred tax liabilities.

+ References

No definition available.

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- Definition

Voluntary retirement program expenses.

+ References

No definition available.

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- Definition

Voluntary retirement program expenses net of tax.

+ References

No definition available.

+ Details

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Balance Type:	debit
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- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 25
-Paragraph 23
-URI http://asc.fasb.org/extlink&oid=116868678&loc=d3e1043-128460

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- Definition

Amount of liability for consideration received or receivable from customer which is not included in transaction price, when consideration is expected to be refunded to customer, classified as current.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 55
-Paragraph 27
-URI http://asc.fasb.org/extlink&oid=121551570&loc=SL49130611-203046-203046

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- Definition

Amount of deferred tax liability attributable to taxable temporary differences from regulatory assets.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32632-109319

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32621-109319

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- Definition

Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees.

+ References

No definition available.

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- Definition

The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.7)
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

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- Definition

Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8672-108599

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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.

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- Definition

Amount of increase (decrease) in unrecognized tax benefits attributable to uncertain tax positions taken in tax returns.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319

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Operating Segments (Narrative) (Detail) $ in Millions	9 Months Ended
Operating Segments (Narrative) (Detail) $ in Millions	Sep. 30, 2020 USD ($) Segment	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Segment Reporting Information [Line Items]
Number of primary operating segment \| Segment	1
Charge for refund of amounts from customers	$ 69		$ 76
Operating Segment
Segment Reporting Information [Line Items]
After- tax net expenses	61	$ 1,400
Operating Segment \| Corporate and Other
Segment Reporting Information [Line Items]
After- tax net expenses	61	1,400
Operating Segment \| Dominion Energy South Carolina
Segment Reporting Information [Line Items]
Litigation charges	53	266
Litigation charges, after tax	$ 40	200
Charge for refund of amounts from customers		1,000
Charge for refund of amounts from customers, after tax		756
Income tax related to regulatory assets acquired		198
Income tax related to regulatory assets acquired, after tax		264
Charge for utility plant but committed to forgo recovery		114
Charge for utility plant but committed to forgo recovery, after tax		86
Merger and integration-related costs		90
Merger and integration-related costs, after tax		68
Charge related to a voluntary retirement program		75
Charge related to a voluntary retirement program, after-tax		56
Changes in unrecognized tax benefits		$ 59