2.2.0.7 false Nature of Operations 109 - Disclosure - Nature of Operations true false false false 1 USD false false iso4217_USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 iso4217_USD_per_shares Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares 0 pure Standard http://www.xbrl.org/2003/instance pure 0 shares Standard http://www.xbrl.org/2003/instance shares 0 $ 5 Nature of Operations 3 us-gaap_NatureOfOperations us-gaap true na duration No definition available. false false false false false false false false false false false false 1 false false false false 0 0 <div> Note 1. Nature of Operations Dominion, headquartered in Richmond, Virginia, is one of the nation’s largest producers and transporters of energy. Dominion’s operations are conducted through various subsidiaries, including Virginia Power, a regulated public utility that generates, transmits and distributes electricity for sale in Virginia and northeastern North Carolina. As discussed in Note 3, Dominion completed the sales of its Pennsylvania gas distribution operations and substantially all of its Appalachian E&P operations in February and April 2010, respectively. </div> Note 1. Nature of Operations Dominion, headquartered in Richmond, Virginia, is one of the nation’s largest producers and transporters of energy. false false false us-types:textBlockItemType textblock Describes the nature of an entity's business, the major products or services it sells or provides and its principal markets, including the locations of those markets. If the entity operates in more than one business, the disclosure also indicates the relative importance of its operations in each business and the basis for the determination (for example, assets, revenues, or earnings). Disclosures about the nature of operations need not be quantified; relative importance could be conveyed by use of terms such as "predominately", "about equally", or "major and other". This element is also referred to as "Business Description". Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 94-6 -Paragraph 10 false 1 1 false UnKnown UnKnown UnKnown false true