2.2.0.7 false CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) 106 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) true false In Millions, except Share data false false 1 USD false false iso4217_USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 shares Standard http://www.xbrl.org/2003/instance shares 0 $ false 2 USD false false iso4217_USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 shares Standard http://www.xbrl.org/2003/instance shares 0 $ 5 Customer receivables, allowance for doubtful accounts 3 us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent us-gaap true credit instant No definition available. false false false false false false false false false false false false 1 true true false false 29000000 29 false false false 2 true true false false 31000000 31 [1] false false false xbrli:monetaryItemType monetary A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 4 -Article 5 false 6 Other receivables, allowance for doubtful accounts 3 d_AllowanceForDoubtfulOtherReceivableCurrent d false credit instant A provision for other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that... false false false false false false false false false false false false 1 true true false false 9000000 9 false false false 2 true true false false 14000000 14 [1] false false false xbrli:monetaryItemType monetary A provision for other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. No authoritative reference available. false 7 Common stock, shares authorized 3 us-gaap_CommonStockSharesAuthorized us-gaap true na instant No definition available. false false false false false false false false false false false false 1 false true false false 1000000000 1000000000 false false false 2 false true false false 1000000000 1000000000 [1] false false false xbrli:sharesItemType shares The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 false 8 Common stock, shares outstanding 3 us-gaap_CommonStockSharesOutstanding us-gaap true na instant No definition available. false false false false false false false false false false false false 1 false true false false 581000000 581000000 false false false 2 false true false false 599000000 599000000 [1] false false false xbrli:sharesItemType shares Total number of shares of common stock held by shareholders. May be all or portion of the number of common shares authorized. These shares represent the ownership interest of the common shareholders. Excludes common shares repurchased by the entity and held as Treasury shares. Shares outstanding equals shares issued minus shares held in treasury. Does not include common shares that have been repurchased. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 false 1 Dominion's Consolidated Balance Sheet at December 31, 2009 has been derived from the audited Consolidated Financial Statements at that date. 2 4 false Millions NoRounding UnKnown false true