2.2.0.7 false Ceiling Test 112 - Disclosure - Ceiling Test 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 Ceiling Test 3 us-gaap_FullCostMethodOfAccountingForInvestmentsInOilAndGasPropertiesDisclosureTextBlock 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 4. Ceiling Test Dominion follows the full cost method of accounting for its gas and oil E&P activities, which subjects capitalized costs to a quarterly ceiling test using hedge-adjusted prices. Due to the April 2010 sale of substantially all of its Appalachian E&P operations, as of September 30, 2010 Dominion no longer has any significant gas and oil properties subject to the ceiling test calculation. At March 31, 2010, Dominion recorded a ceiling test impairment charge of $21 million ($13 million after-tax) in other operations and maintenance expense in its Consolidated Statement of Income primarily due to a decline in hedge-adjusted prices reflecting the discontinuance of hedge accounting for certain cash flow hedges, as discussed in Note 3. During the nine months ended September 30, 2009, Dominion recorded a ceiling test impairment charge of $455 million ($281 million after-tax) in other operations and maintenance expense in its Consolidated Statement of Income. Excluding the effects of hedge-adjusted prices in calculating the ceiling limitation, the impairment charge would have been $631 million ($378 million after-tax). </div> Note 4. Ceiling Test Dominion follows the full cost method of accounting for its gas and oil E&P activities, which subjects capitalized costs to a false false false us-types:textBlockItemType textblock This block of text may be used to disclose all or parts of the required disclosure information for oil and gas enterprises that follow the full cost method of accounting for investments in oil and gas properties. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 10 -Paragraph c -Subparagraph 7 -Article 4 false 1 1 false UnKnown UnKnown UnKnown false true