Related Party Purchases - Cost of Gas

No definition available.

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- Definition

Utilities Operating Expense, Fuel Used, Affiliate

+ References

No definition available.

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- Definition

Amount of receivables due from an entity that is affiliated with the reporting entity by means of direct or indirect ownership, due within 1 year (or 1 business cycle).

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- Definition

Amount of payable due to an entity that is affiliated with the reporting entity by means of direct or indirect ownership. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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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

Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

No definition available.

+ Details

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- Details

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Affiliated and Related Party Transactions (Narrative) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Related Party Transaction [Line Items]
Purchases from affiliates, fuel used in electric generation	$ 43	$ 139	$ 127
Canadys Refined Coal [Member]
Related Party Transaction [Line Items]
Ownership percentage	40.00%
Purchases from affiliates	$ 121	150	$ 162
Accounts payable to affiliates	2	7
Accounts receivable to affiliates	2	$ 7
Solar Affiliates [Member]
Related Party Transaction [Line Items]
Purchases from affiliates	234
Solar Affiliates [Member] \| SCANA Combination
Related Party Transaction [Line Items]
Purchases from affiliates	8
Solar Affiliates [Member] \| Maximum [Member]
Related Party Transaction [Line Items]
Accounts payable to affiliates	1
Dominion Energy Carolina Gas Transmission LLC [Member]
Related Party Transaction [Line Items]
Purchases from affiliates	63
Accounts payable to affiliates	5
Purchases from affiliates, fuel used in electric generation	19
Purchases from affiliates, gas purchased for resale	44
Accounts receivable to affiliates	$ 1