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

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- Definition

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

+ References

No definition available.

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- Definition

Customer refundable fees refund payments after tax.

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- Definition

Litigation settlement expense net of tax.

+ References

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- Definition

Regulatory assets, net of deferred tax liabilities.

+ References

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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=118944142&loc=SL49130611-203046-203046

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

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
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- Definition

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

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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).

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.7)
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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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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.

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- Definition

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

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Operating Segments (Narrative) (Detail) $ in Millions	3 Months Ended
Operating Segments (Narrative) (Detail) $ in Millions	Mar. 31, 2020 USD ($) Segment	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)
Segment Reporting Information [Line Items]
Number of primary operating segment \| Segment	1
Charge for refund of amounts from customers	$ 68		$ 76
Operating Segment \| Corporate and Other
Segment Reporting Information [Line Items]
After- tax net expenses		$ 1,200
Operating Segment \| Dominion Energy South Carolina
Segment Reporting Information [Line Items]
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
Litigation charges		166
Litigation charges, after tax		125
Charge for utility plant but committed to forgo recovery		105
Charge for utility plant but committed to forgo recovery, after tax		79
Changes in unrecognized tax benefits		$ 40