2.2.0.7 false CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) 107 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS true false In Millions 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 $ 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 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 $ 5 Operating Activities 3 us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false xbrli:stringItemType string The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities include all transactions and events that are not defined as investing or financing activities. Operating activities generally involve producing and delivering goods and providing services. Cash flows from operating activities are generally the cash effects of transactions and other events that enter into the determination of net income. false 6 Net income including noncontrolling interests 4 us-gaap_ProfitLoss us-gaap true credit duration No definition available. false false false false false false false false false false false false 1 true true false false 2522000000 2522 false false false 2 true true false false 1308000000 1308 [1] false false false xbrli:monetaryItemType monetary The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A1, A4, A5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 5 -Subparagraph b Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 29 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(1) false 7 Adjustments to reconcile net income including noncontrolling interests to net cash provided by operating activities: 4 us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 8 Gain from sale of Appalachian E&P operations 5 us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -2467000000 -2467 false false false 2 false false false false 0 0 false false false xbrli:monetaryItemType monetary The gain (loss) resulting from the sale of a disposal group that is not a discontinued operation. It is included in income from continuing operations before income taxes in the income statement. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 144 -Paragraph 47 -Subparagraph b Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 144 -Paragraph 37, 45 false 9 Loss from sale of Peoples 5 us-gaap_GainLossOnSaleOfOtherAssets us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false 113000000 113 false false false 2 false false false false 0 0 false false false xbrli:monetaryItemType monetary The difference between the sale price or salvage price and the book value of an asset that was sold or retired during the reporting period. This element refers to the gain (loss) and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method. There is also a more specific element for realized gain (loss) on the sale of property, plant, and equipment. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 10 Accrued charges related to workforce reduction program 5 d_WorkforceReductionProgramCharges d false debit duration Represents charges against earnings in the period for known and estimated costs of termination benefits provided to current... false false false false false false false false false false false false 1 false true false false 261000000 261 false false false 2 false false false false 0 0 false false false xbrli:monetaryItemType monetary Represents charges against earnings in the period for known and estimated costs of termination benefits provided to current employees that involuntarily or voluntarily terminated employment under a benefit arrangement. No authoritative reference available. false 11 Impairment of merchant generation facility 5 us-gaap_AssetImpairmentCharges us-gaap true debit duration No definition available. false false false false false false false false false false false false 1 false true false false 163000000 163 false false false 2 false false false false 0 0 false false false xbrli:monetaryItemType monetary The charge against earnings resulting from the aggregate write down of all assets from their carrying value to their fair value. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 144 -Paragraph 45, 46, 47 false 12 Impairment of gas and oil properties 5 us-gaap_ImpairmentOfOilAndGasProperties us-gaap true debit duration No definition available. false false false false false false false false false false false false 1 false true false false 21000000 21 false false false 2 false true false false 455000000 455 false false false xbrli:monetaryItemType monetary The expense recorded to reduce the value of oil and gas assets consisting of proved properties and unproved properties as the estimate of future successful production from these properties is reduced. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 19 -Paragraph 27, 28, 29 false 13 Depreciation, depletion and amortization (including nuclear fuel) 5 us-gaap_DepreciationDepletionAndAmortization us-gaap true debit duration No definition available. false false false false false false false false false false false false 1 false true false false 946000000 946 false false false 2 false true false false 960000000 960 false false false xbrli:monetaryItemType monetary The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. No authoritative reference available. false 14 Deferred income taxes and investment tax credits 5 d_DeferredIncomeTaxesAndAmortizationOfInvestmentTaxCredits d false debit duration Deferred income tax expense and the amortization of investment tax credits. false false false false false false false false false false false verboselabel false 1 false true false false 310000000 310 false false false 2 false true false false -342000000 -342 false false false xbrli:monetaryItemType monetary Deferred income tax expense and the amortization of investment tax credits. No authoritative reference available. false 15 Contribution to employee pension plans 5 us-gaap_DefinedBenefitPlanContributionsByEmployer us-gaap true debit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -250000000 -250 false false false 2 false false false false 0 0 false false false xbrli:monetaryItemType monetary The amount of contributions made by the employer. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph b false 16 Rate settlement 5 d_AdjustmentOtherCharges d false debit duration Adjustment - Other Charges not otherwise defined false false false false false false false false false false false false 1 false true false false -413000000 -413 false false false 2 false false false false 0 0 false false false xbrli:monetaryItemType monetary Adjustment - Other Charges not otherwise defined No authoritative reference available. false 17 Other adjustments 5 us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesOther us-gaap true debit duration No definition available. false false false false false false false false false false false false 1 false true false false 7000000 7 false false false 2 false true false false -95000000 -95 false false false xbrli:monetaryItemType monetary Transactions that do not result in cash inflows or outflows in the period in which they occur, but affect net income and thus are removed when calculating net cash flow from operating activities using the indirect cash flow method. This element is used when there is not a more specific and appropriate element. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 18 Changes in: 4 us-gaap_IncreaseDecreaseInOperatingCapitalAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 19 Accounts receivable 5 us-gaap_IncreaseDecreaseInAccountsReceivable us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false 360000000 360 false false false 2 false true false false 804000000 804 false false false xbrli:monetaryItemType monetary The net change during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 20 Inventories 5 us-gaap_IncreaseDecreaseInInventories us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -23000000 -23 false false false 2 false true false false -41000000 -41 false false false xbrli:monetaryItemType monetary The net change during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 21 Deferred fuel and purchased gas costs 5 us-gaap_IncreaseDecreaseInDeferredFuelCosts us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -147000000 -147 false false false 2 false true false false 678000000 678 false false false xbrli:monetaryItemType monetary The net change during the reporting period in carrying amount of capitalized fuel costs of a regulated entity that are expected to be recoverable through rate adjustments within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 22 Prepayments 5 us-gaap_IncreaseDecreaseInPrepaidExpense us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false 274000000 274 false false false 2 false true false false -67000000 -67 false false false xbrli:monetaryItemType monetary The net change during the reporting period in the amount of outstanding money paid in advance for goods or services that bring economic benefits for future periods. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 23 Accounts payable 5 us-gaap_IncreaseDecreaseInAccountsPayable us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false -51000000 -51 false false false 2 false true false false -475000000 -475 false false false xbrli:monetaryItemType monetary The net change during the reporting period in the aggregate amount of obligations due within one year (or one business cycle). This may include trade payables, amounts due to related parties, royalties payable, and other obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 24 Accrued interest, payroll and taxes 5 us-gaap_IncreaseDecreaseInAccruedLiabilities us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 270000000 270 false false false 2 false true false false -4000000 -4 false false false xbrli:monetaryItemType monetary The net change during the reporting period in the aggregate amount of expenses incurred but not yet paid. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 25 Margin deposit assets and liabilities 5 us-gaap_IncreaseDecreaseInMarginDepositsOutstanding us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -23000000 -23 false false false 2 false true false false -194000000 -194 false false false xbrli:monetaryItemType monetary The net change during the reporting period in money or securities placed with a broker or counterparty as security for a trading or derivative position. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 26 Other operating assets and liabilities 5 us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false 11000000 11 false false false 2 false true false false -5000000 -5 false false false xbrli:monetaryItemType monetary For entities with classified balance sheets, the net change during the reporting period in the value of other assets or liabilities used in operating activities, that are not otherwise defined in the taxonomy. For entities with unclassified balance sheets, the net change during the reporting period in the value of all other assets or liabilities used in operating activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 27 Net cash provided by operating activities 4 us-gaap_NetCashProvidedByUsedInOperatingActivities us-gaap true na duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 1884000000 1884 false false false 2 false true false false 2982000000 2982 false false false xbrli:monetaryItemType monetary The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities generally involve producing and delivering goods and providing services. Operating activity cash flows include transactions, adjustments, and changes in value that are not defined as investing or financing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 true 28 Investing Activities 3 us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 29 Plant construction and other property additions 4 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -2509000000 -2509 false false false 2 false true false false -2884000000 -2884 false false false xbrli:monetaryItemType monetary The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 17 -Subparagraph c false 30 Proceeds from the sale of Appalachian E&P operations 4 d_ContractForSaleOfBusinessConsiderationAmount d false debit instant Contract For Sale Of Business, Consideration Amount false false false false false false false false false false false terselabel false 1 false true false false 3450000000 3450 false false false 2 false false false false 0 0 false false false xbrli:monetaryItemType monetary Contract For Sale Of Business, Consideration Amount No authoritative reference available. false 31 Proceeds from the sale of Peoples 4 us-gaap_ProceedsFromDivestitureOfBusinesses us-gaap true debit duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false 741000000 741 false false false 2 false false false false 0 0 false false false xbrli:monetaryItemType monetary The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15, 16 false 32 Proceeds from sale of securities 4 us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments us-gaap true debit duration No definition available. false false false false false false false false false false false false 1 false true false false 1938000000 1938 false false false 2 false true false false 1258000000 1258 false false false xbrli:monetaryItemType monetary The cash inflow associated with the sale, maturity and collection of all investments such as debt, security and so forth during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 31 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 16 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 18 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15 false 33 Purchases of securities 4 us-gaap_PaymentsToAcquireInvestments us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -2470000000 -2470 false false false 2 false true false false -1294000000 -1294 false false false xbrli:monetaryItemType monetary The cash outflow associated with the purchase of all investments (debt, security, other) during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15, 17 false 34 Other 4 us-gaap_PaymentsForProceedsFromOtherInvestingActivities us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false 75000000 75 false false false 2 false true false false 176000000 176 false false false xbrli:monetaryItemType monetary The net cash outflow (inflow) from other investing activities. This element is used when there is not a more specific and appropriate element in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15 false 35 Net cash provided by (used in) investing activities 4 us-gaap_NetCashProvidedByUsedInInvestingActivities us-gaap true debit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 1225000000 1225 false false false 2 false true false false -2744000000 -2744 false false false xbrli:monetaryItemType monetary The net cash inflow (outflow) from investing activity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 true 36 Financing Activities 3 us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 37 Repayment of short-term debt, net 4 us-gaap_ProceedsFromRepaymentsOfShortTermDebt us-gaap true debit duration No definition available. false false false false false false false false false false false false 1 false true false false -1195000000 -1195 false false false 2 false true false false -1381000000 -1381 false false false xbrli:monetaryItemType monetary The net cash inflow (outflow) for borrowing having initial term of repayment within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 false 38 Issuance of long-term debt 4 us-gaap_ProceedsFromIssuanceOfLongTermDebt us-gaap true debit duration No definition available. false false false false false false false false false false false false 1 false true false false 550000000 550 false false false 2 false true false false 1695000000 1695 false false false xbrli:monetaryItemType monetary The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 19 -Subparagraph b false 39 Repayment of long-term debt 4 us-gaap_RepaymentsOfLongTermDebt us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -414000000 -414 false false false 2 false true false false -134000000 -134 false false false xbrli:monetaryItemType monetary The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph b false 40 Issuance of common stock 4 us-gaap_ProceedsFromIssuanceOfCommonStock us-gaap true debit duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false 66000000 66 false false false 2 false true false false 381000000 381 false false false xbrli:monetaryItemType monetary The cash inflow from the additional capital contribution to the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 19 -Subparagraph a false 41 Repurchase of common stock 4 us-gaap_PaymentsForRepurchaseOfCommonStock us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -900000000 -900 false false false 2 false false false false 0 0 false false false xbrli:monetaryItemType monetary The cash outflow to reacquire common stock during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph a false 42 Common dividend payments 4 us-gaap_PaymentsOfDividendsCommonStock us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -810000000 -810 false false false 2 false true false false -777000000 -777 false false false xbrli:monetaryItemType monetary The cash outflow from the distribution of an entity's earnings in the form of dividends to common shareholders. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph a false 43 Subsidiary preferred dividend payments 4 us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -12000000 -12 false false false 2 false true false false -12000000 -12 false false false xbrli:monetaryItemType monetary The cash outflow for the return on capital for preferred shareholders. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph a false 44 Other 4 us-gaap_ProceedsFromPaymentsForOtherFinancingActivities us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 2000000 2 false false false 2 false true false false -28000000 -28 false false false xbrli:monetaryItemType monetary The net cash inflow (outflow) from other financing activities. This element is used when there is not a more specific and appropriate element in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18, 19, 20 false 45 Net cash used in financing activities 4 us-gaap_NetCashProvidedByUsedInFinancingActivities us-gaap true debit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false -2713000000 -2713 false false false 2 false true false false -256000000 -256 false false false xbrli:monetaryItemType monetary The net cash inflow (outflow) from financing activity for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 true 46 Increase (decrease) in cash and cash equivalents 3 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease us-gaap true na duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 396000000 396 false false false 2 false true false false -18000000 -18 false false false xbrli:monetaryItemType monetary The net change between the beginning and ending balance of cash and cash equivalents. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 true 47 Cash and cash equivalents at beginning of period 3 d_TotalCashCashEquivalents d false debit instant Total Cash and cash equivalents. false false false false false false false false true false false periodstartlabel false 1 false true false false 50000000 50 [2] false false false 2 false true false false 71000000 71 [2] false false false xbrli:monetaryItemType monetary Total Cash and cash equivalents. No authoritative reference available. false 48 Cash and cash equivalents at end of period 3 d_TotalCashCashEquivalents d false debit instant Total Cash and cash equivalents. false false false false false false false false false true false periodendlabel false 1 false true false false 446000000 446 [3] false false false 2 false true false false 53000000 53 [3] false false false xbrli:monetaryItemType monetary Total Cash and cash equivalents. No authoritative reference available. false 50 Significant noncash investing and financing activities 4 us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false xbrli:stringItemType string Designated to encapsulate the entire footnote disclosure that gives information on the supplemental cash flow activities for noncash (or part noncash) transactions for the period. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. false 51 Accrued capital expenditures 5 us-gaap_CapitalExpendituresIncurredButNotYetPaid us-gaap true credit duration No definition available. false false false false false false false false false false false false 1 false true false false 192000000 192 false false false 2 false true false false 184000000 184 false false false xbrli:monetaryItemType monetary Future cash outflow to pay for purchases of fixed assets that have occurred. No authoritative reference available. false 52 Debt for equity exchange 5 d_DebtForEquityExchange d false credit duration This item represents a debt for equity exchange. false false false false false false false false false false false false 1 false false false false 0 0 false false false 2 true true false false 56000000 56 false false false xbrli:monetaryItemType monetary This item represents a debt for equity exchange. No authoritative reference available. false 1 Dominion's Consolidated Statements of Income for the three and nine months ended September 30, 2009 have been recast to reflect Peoples as discontinued operations, as discussed in Note 3. 2 2010 and 2009 amounts include $2 million and $5 million, respectively, of cash classified as held for sale in Dominion's Consolidated Balance Sheets. 3 2009 amount includes $3 million of cash classified as held for sale in Dominion's Consolidated Balance Sheet. 2 47 false Millions UnKnown UnKnown false true