Consolidated Statements of Cash Flows (Parenthetical) (USD $) In Millions, unless otherwise specified	Dec. 31, 2009	Dec. 31, 2008
Cash classified as held for sale in Dominion's Consolidated Balance Sheets	$ 2	$ 5

Cash classified as held-for-sale in company's consolidated balance sheet.

No definition available.

Name:	d_CashClassifiedAsHeldForSaleInCompanysConsolidatedBalanceSheets
Namespace Prefix:	d_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant