Variable Interest Entities	9 Months Ended
Sep. 30, 2022
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Variable Interest Entities	Note 15. Variable Interest Entities There have been no significant changes regarding the entities the Companies consider VIEs as described in Note 16 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2021. Virginia Power Virginia Power purchased shared services from DES, an affiliated VIE, of $96 million and $89 million for the three months ended September 30, 2022 and 2021, respectively, and $290 million and $278 million for the nine months ended September 30, 2022 and 2021, respectively. Virginia Power’s Consolidated Balance Sheets include amounts due to DES of $27 million and $20 million at September 30, 2022 and December 31, 2021, respectively, recorded in payables to affiliates.

The entire disclosure for a variable interest entity (VIE), including but not limited to, judgments and assumptions in determining whether to consolidate and in identifying the primary beneficiary, gain (loss) recognized on the initial consolidation of the VIE, terms of arrangements, amounts and classification of the VIE's assets and liabilities, and the entity's maximum exposure to loss.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-URI https://asc.fasb.org/topic&trid=2197479

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