2.0.0.10 false CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) 002000 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS true false In Thousands false false 1 usd $ false false u000 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 u001 Standard http://www.xbrl.org/2003/instance shares xbrli 0 u002 Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 false 2 usd $ false false u000 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 u001 Standard http://www.xbrl.org/2003/instance shares xbrli 0 u002 Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 3 OPERATING ACTIVITIES 1 us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract us-gaap true na duration string 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 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 4 Consolidated net income 2 us-gaap_ProfitLoss us-gaap true credit duration monetary No definition available. false false false false false false false false false false false false 1 true true false false 218814000 218814 false false false 2 true true false false 240333000 240333 false false false 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 5 Consolidated net income Adjustments to reconcile consolidated net income to net cash flow 2 us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract us-gaap true na duration string 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 No definition available. false 6 Reserve for regulatory adjustments 3 etr_ReserveForRegulatoryAdjustments etr false credit duration monetary The provision recorded in the period the offset to which is either a reduction or an increase in a regulatory asset or... false false false false false false false false false false false false 1 false true false false 438000 438 false false false 2 false true false false 1210000 1210 false false false The provision recorded in the period the offset to which is either a reduction or an increase in a regulatory asset or liability. No authoritative reference available. false 7 Other regulatory charges (credits) - net 3 etr_OtherRegulatoryChargesCreditsNet etr false na duration monetary Represents the debit or credit to defer certain costs or revenues because they will be recovered or returned to customers in... false false false false false false false false false false false false 1 false true false false 28092000 28092 false false false 2 false true false false -29474000 -29474 false false false Represents the debit or credit to defer certain costs or revenues because they will be recovered or returned to customers in the future. No authoritative reference available. false 8 Depreciation, amortization, and decommissioning 3 us-gaap_DepreciationAmortizationAndAccretionNet us-gaap true debit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false 423432000 423432 false false false 2 false true false false 348444000 348444 false false false The aggregate net amount of depreciation, amortization, and accretion recognized during an accounting period. As a noncash item, the net amount is added back to net income when calculating cash provided by (used in) operations using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 9 Deferred income taxes, investment tax credits, and non-current taxes accrued 3 us-gaap_DeferredIncomeTaxesAndTaxCredits us-gaap true debit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false 133533000 133533 false false false 2 false true false false 155029000 155029 false false false The net amount of deferred income taxes and income tax credits less the tax benefit from exercise of stock options. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 10 Changes in working capital: 3 us-gaap_IncreaseDecreaseInOperatingCapitalAbstract us-gaap true na duration string 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 No definition available. false 11 Receivables 4 us-gaap_IncreaseDecreaseInReceivables us-gaap true credit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false 43830000 43830 false false false 2 false true false false 102428000 102428 false false false The net change during the reporting period in the total amount due within one year (or one operating cycle) from all parties, 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 12 Fuel inventory 4 us-gaap_IncreaseDecreaseInFuelInventories us-gaap true credit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false -6324000 -6324 false false false 2 false true false false -17631000 -17631 false false false The net change during the reporting period in the value of fuel held in inventory. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 13 Accounts payable 4 us-gaap_IncreaseDecreaseInAccountsPayable us-gaap true debit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false -79250000 -79250 false false false 2 false true false false -134008000 -134008 false false false 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 14 Taxes accrued 4 us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable us-gaap true debit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false 0 0 false false false 2 false true false false -12784000 -12784 false false false The net change during the period in the amount of cash payments due to taxing authorities for taxes that are based on the reporting entity's earnings. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 15 Interest accrued 4 us-gaap_IncreaseDecreaseInInterestPayableNet us-gaap true debit duration monetary No definition available. false false false false false false false false false false false terselabel false 1 false true false false -36676000 -36676 false false false 2 false true false false -37413000 -37413 false false false The net change during the reporting period in interest payable, which represents the amount owed to note holders, bond holders, and other parties for interest earned on loans or credit extended to the reporting entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 16 Deferred fuel 4 us-gaap_IncreaseDecreaseInDeferredFuelCosts us-gaap true credit duration monetary No definition available. false false false false false false false false false false false terselabel false 1 false true false false 964000 964 false false false 2 false true false false 275508000 275508 false false false 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 17 Other working capital accounts 4 us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet us-gaap true credit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false 19527000 19527 false false false 2 false true false false -120505000 -120505 false false false 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 18 Provision for estimated losses and reserves 3 us-gaap_ProvisionForOtherLosses us-gaap true debit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false -35870000 -35870 false false false 2 false true false false 1281000 1281 false false false The provision charged to earnings in the period, the offset to which is either added to or deducted from the allowance account, for the purpose of reducing receivables, other than loans, leases, or credit losses, to an amount that approximates their net realizable value (the amount expected to be collected); includes provision for losses associated with foreclosed assets. 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 SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 5 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 11 -Article 9 false 19 Changes in other regulatory assets 3 us-gaap_IncreaseDecreaseInRegulatoryAssetsAndLiabilities us-gaap true credit duration monetary No definition available. false false false false false false false false false false false terselabel false 1 false true false false -66248000 -66248 false false false 2 false true false false -447882000 -447882 false false false The net change during the reporting period in the value of assets that are created when regulatory agencies permits public utilities to defer costs (revenues) to the balance sheet. This element is a the net change of regulatory assets and liabilities combined. No authoritative reference available. false 20 Changes in pensions and other postretirement liabilities 3 us-gaap_IncreaseDecreaseInPensionAndPostretirementObligations us-gaap true debit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false -40884000 -40884 false false false 2 false true false false -29158000 -29158 false false false The net change during the reporting period in the amount due to fund pension and non-pension benefits to employees, retired and disabled former employees. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 21 Other 3 us-gaap_OtherNoncashExpense us-gaap true debit duration monetary No definition available. false false false false false false false false false false false terselabel false 1 false true false false 70887000 70887 false false false 2 false true false false 79241000 79241 false false false Other expenses included in net income that result in no cash inflows or outflows in the period which are not otherwise defined in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 22 Net cash flow provided by operating activities 2 us-gaap_NetCashProvidedByUsedInOperatingActivities us-gaap true na duration monetary No definition available. false false false false false false false false false false false totallabel false 1 false true false false 674265000 674265 false false false 2 false true false false 374619000 374619 false false false 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 23 INVESTING ACTIVITIES 1 us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract us-gaap true na duration string 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 No definition available. false 24 Construction/capital expenditures 2 us-gaap_PaymentsForCapitalImprovements us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false -447476000 -447476 false false false 2 false true false false -455737000 -455737 false false false The cash outflow for acquisition of or capital improvements to properties held for investment (operating, managed, leased) or for use. 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 25 Allowance for equity funds used during construction 2 us-gaap_AllowanceForFundsUsedDuringConstructionInvestingActivities us-gaap true debit duration monetary No definition available. false false false false false false false false false false false terselabel false 1 false true false false 13296000 13296 false false false 2 false true false false 16947000 16947 false false false Cash inflow due to change during the period in the allowance for other funds used during construction classified as an investing activity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 16 false 26 Nuclear fuel purchases 2 etr_NuclearFuelPurchases etr false debit duration monetary The net cash outflow from any material that is commonly used in the generation of nuclear energy. false false false false false false false false false false false false 1 false true false false -65336000 -65336 false false false 2 false true false false -118890000 -118890 false false false The net cash outflow from any material that is commonly used in the generation of nuclear energy. No authoritative reference available. false 27 Proceeds from sale/leaseback of nuclear fuel 2 etr_ProceedsFromSaleLeasebackOfNuclearFuel etr false credit duration monetary The net cash inflow from any material that is commonly used in the generation of nuclear energy. false false false false false false false false false false true negated false 1 false true false false 0 0 false false false 2 false true false false 11040000 11040 false false false The net cash inflow from any material that is commonly used in the generation of nuclear energy. No authoritative reference available. false 28 Proceeds from sale of assets and businesses 2 us-gaap_ProceedsFromSaleOfProductiveAssets us-gaap true debit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false 9675000 9675 false false false 2 false true false false 0 0 false false false The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible 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 16 -Subparagraph c false 29 Changes in transition charge account 2 etr_ChangesInTransitionChargeAccount etr false debit duration monetary Changes in the account in which recoveries from customers through a transition charge are deposited and and from which... false false false false false false false false false false false false 1 false true false false -21940000 -21940 false false false 2 false true false false -7831000 -7831 false false false Changes in the account in which recoveries from customers through a transition charge are deposited and and from which payments are made to service the securitization bonds issued by Entergy Gulf States Reconstruction Funding. No authoritative reference available. false 30 NYPA value sharing payment 2 etr_NypaValueSharingPayment etr false debit duration monetary Payments made under amended value sharing agreements with NYPA. false false false false false false false false false false false false 1 false true false false -72000000 -72000 false false false 2 false true false false -72000000 -72000 false false false Payments made under amended value sharing agreements with NYPA. No authoritative reference available. false 31 Increase (decrease) in other investments 2 us-gaap_PaymentsForProceedsFromOtherInvestingActivities us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false 96416000 96416 false false false 2 false true false false 7339000 7339 false false false 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 32 Proceeds from nuclear decommissioning trust fund sales 2 us-gaap_ProceedsFromDecommissioningFund us-gaap true debit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false 770781000 770781 false false false 2 false true false false 583166000 583166 false false false The cash inflow from the costs of decontaminating and decommissioning of facilities through collection of revenues derived from utility assessments, government appropriations, and so forth. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15, 16 false 33 Investment in nuclear decommissioning trust funds 2 us-gaap_PaymentsToInvestInDecommissioningFund us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false -798864000 -798864 false false false 2 false true false false -610836000 -610836 false false false The cash outflow from the costs of decontaminating and decommissioning of facilities through collection of revenues derived from utility assessments, government appropriations, and so forth. 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 Net cash flow used in investing activities 2 us-gaap_NetCashProvidedByUsedInInvestingActivities us-gaap true debit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false -515448000 -515448 false false false 2 false true false false -646802000 -646802 false false false 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 false 36 Proceeds from the issuance of: 2 etr_ProceedsFromIssuanceOf etr false na duration string 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 No definition available. false 37 Long-term debt 3 us-gaap_ProceedsFromIssuanceOfLongTermDebt us-gaap true debit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false 42545000 42545 false false false 2 false true false false 489987000 489987 false false false 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 38 Common stock and treasury stock 3 us-gaap_ProceedsFromIssuanceOrSaleOfEquity us-gaap true debit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false 6078000 6078 false false false 2 false true false false 927000 927 false false false The cash inflow from the issuance of common, preferred, and treasury stocks, stock options, and such forth. 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 39 Retirement of long-term debt 2 us-gaap_RepaymentsOfLongTermDebt us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false -100289000 -100289 false false false 2 false true false false -215023000 -215023 false false false 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 Changes in short term borrowings - net 2 us-gaap_ProceedsFromRepaymentsOfShortTermDebt us-gaap true debit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false -13368000 -13368 false false false 2 false true false false 25000000 25000 false false false 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 41 Dividends paid: 2 us-gaap_DividendsAbstract us-gaap true na duration string 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 No definition available. false 42 Common stock 3 us-gaap_PaymentsOfDividendsCommonStock us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false -141892000 -141892 false false false 2 false true false false -142085000 -142085 false false false 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 Preferred stock 3 us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false -5015000 -5015 false false false 2 false true false false -4998000 -4998 false false false 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 Net cash flow provided by (used in) financing activities 2 us-gaap_NetCashProvidedByUsedInFinancingActivities us-gaap true debit duration monetary No definition available. false false false false false false false false false false false totallabel false 1 false true false false -211941000 -211941 false false false 2 false true false false 153808000 153808 false false false 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 45 Effect of exchange rates on cash and cash equivalents 1 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents us-gaap true debit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false 607000 607 false false false 2 false true false false 842000 842 false false false The effect of exchange rate changes on cash balances held in foreign currencies. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 25 false 46 Net increase (decrease) in cash and cash equivalents 1 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease us-gaap true na duration monetary No definition available. false false false false false false false false false false false totallabel false 1 false true false false -52517000 -52517 false false false 2 false true false false -117533000 -117533 false false false 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 1 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant monetary No definition available. false false false false false false false false true false false periodstartlabel false 1 false true false false 1709551000 1709551 false false false 2 false true false false 1920491000 1920491 false false false Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits should not be reported as 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 7, 26 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 8, 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7 -Footnote 1 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 false 48 Cash and cash equivalents at end of period 1 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant monetary No definition available. false false false false false false false false false true false periodendlabel false 1 false true false false 1657034000 1657034 false false false 2 false true false false 1802958000 1802958 false false false Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits should not be reported as 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 7, 26 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 8, 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7 -Footnote 1 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 false 50 Cash paid (received) during the period for: 2 etr_CashPaidReceivedDuringPeriodFor etr false na duration string 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 No definition available. false 51 Interest - net of amount capitalized 3 us-gaap_CashPaidForCapitalizedInterest us-gaap true debit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false 171145000 171145 false false false 2 false true false false 176892000 176892 false false false The amount of cash paid during the current period for interest owed on money borrowed that is not charged as an expense but rather is capitalized based on the long term nature of the use of the borrowed funds. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 29 false 52 Income taxes 3 us-gaap_IncomeTaxesPaidNet us-gaap true credit duration monetary No definition available. false false false false false false false false false false false terselabel false 1 false true false false -1385000 -1385 false false false 2 false true false false -15139000 -15139 false false false The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 29 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 27 -Subparagraph f false 53 Noncash financing activities: 2 us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract us-gaap true na duration string 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 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 54 Long-term debt retired (equity unit notes) 3 us-gaap_NotesReduction us-gaap true debit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false 0 0 false false false 2 false true false false -500000000 -500000 false false false The value of notes retired (or transferred to another entity) in noncash investing or financing transactions. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 32 false 55 Common stock issued in settlement of equity unit purchase contracts 3 us-gaap_StockIssued us-gaap true debit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false 0 0 false false false 2 false true false false 500000000 500000 false false false The fair value of stock issued in noncash financing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 32 false 56 Proceeds from long-term debt issued for the purpose of refunding prior long-term debt 3 etr_ProceedsFromLongTermDebtIssuedForPurposesOfRefundingPriorLongTermDebt etr false na duration monetary No definition available. false false false false false false false false false false false terselabel false 1 true true false false 150000000 150000 false false false 2 true true false false 0 0 false false false No definition available. No authoritative reference available. false false 2 52 false Thousands UnKnown UnKnown false true