2017 Q4 Form 10-K Financial Statement
#000006598418000072 Filed on February 26, 2018
Income Statement
| Concept | 2017 Q4 | 2017 Q3 | 2017 |
|---|---|---|---|
| Revenue | $2.624B | $3.244B | $11.07B |
| YoY Change | -0.93% | 3.81% | 2.11% |
| Cost Of Revenue | $289.6M | $451.4M | $1.596B |
| YoY Change | -26.53% | 4.54% | 11.69% |
| Gross Profit | $2.334B | $2.792B | $9.478B |
| YoY Change | 3.54% | 3.69% | 0.65% |
| Gross Profit Margin | 88.96% | 86.08% | 85.58% |
| Selling, General & Admin | |||
| YoY Change | |||
| % of Gross Profit | |||
| Research & Development | |||
| YoY Change | |||
| % of Gross Profit | |||
| Depreciation & Amortization | $517.0M | $518.9M | $2.079B |
| YoY Change | -9.99% | -3.21% | -2.11% |
| % of Gross Profit | 22.15% | 18.58% | 21.93% |
| Operating Expenses | $1.964B | $2.514B | $9.831B |
| YoY Change | -0.78% | 6.87% | -16.2% |
| Operating Profit | $237.1M | $759.0M | $1.360B |
| YoY Change | -109.12% | -1.69% | -266.87% |
| Interest Expense | -$77.30M | $166.9M | $662.3M |
| YoY Change | -43.2% | -0.18% | -0.6% |
| % of Operating Profit | -32.61% | 21.99% | 48.69% |
| Other Income/Expense, Net | -$5.300M | $51.34M | $269.9M |
| YoY Change | -92.18% | 11.01% | 170.29% |
| Pretax Income | $154.4M | $643.4M | $967.9M |
| YoY Change | -105.65% | -1.18% | -170.05% |
| Income Tax | $69.70M | $241.8M | $542.6M |
| % Of Pretax Income | 45.14% | 37.58% | 56.06% |
| Net Earnings | -$479.1M | $398.2M | $411.6M |
| YoY Change | -72.92% | 2.58% | -170.53% |
| Net Earnings / Revenue | -18.26% | 12.28% | 3.72% |
| Basic Earnings Per Share | -$2.67 | $2.22 | $2.29 |
| Diluted Earnings Per Share | -$2.66 | $2.21 | $2.28 |
| COMMON SHARES | |||
| Basic Shares Outstanding | 180.3M shares | 179.6M shares | 179.7M shares |
| Diluted Shares Outstanding | 180.5M shares | 180.5M shares |
Balance Sheet
| Concept | 2017 Q4 | 2017 Q3 | 2017 |
|---|---|---|---|
| SHORT-TERM ASSETS | |||
| Cash & Short-Term Investments | $781.0M | $546.0M | $781.0M |
| YoY Change | -34.26% | -58.22% | -34.26% |
| Cash & Equivalents | $781.3M | $546.3M | |
| Short-Term Investments | $725.0M | $459.0M | $725.0M |
| Other Short-Term Assets | $156.3M | $366.3M | $769.0M |
| YoY Change | -19.19% | 28.18% | -5.76% |
| Inventory | $906.0M | $879.0M | $906.0M |
| Prepaid Expenses | |||
| Receivables | $1.213B | $1.313B | $660.0M |
| Other Receivables | $169.0M | $152.0M | $169.0M |
| Total Short-Term Assets | $3.285B | $3.471B | $3.285B |
| YoY Change | -10.83% | -20.02% | -10.83% |
| LONG-TERM ASSETS | |||
| Property, Plant & Equipment | $261.0M | $252.6M | $29.93B |
| YoY Change | 11.7% | 13.28% | 6.29% |
| Goodwill | $377.2M | $377.2M | |
| YoY Change | 0.0% | 0.0% | |
| Intangibles | |||
| YoY Change | |||
| Long-Term Investments | $198.0K | $198.0K | $0.00 |
| YoY Change | 0.0% | -72.38% | |
| Other Assets | $112.1M | $129.2M | $13.12B |
| YoY Change | -93.02% | -92.14% | -4.16% |
| Total Long-Term Assets | $5.842B | $6.283B | $43.42B |
| YoY Change | -25.78% | -18.4% | 2.85% |
| TOTAL ASSETS | |||
| Total Short-Term Assets | $3.285B | $3.471B | $3.285B |
| Total Long-Term Assets | $5.842B | $6.283B | $43.42B |
| Total Assets | $46.71B | $46.40B | $46.71B |
| YoY Change | 1.75% | -2.81% | 1.75% |
| SHORT-TERM LIABILITIES | |||
| YoY Change | |||
| Accounts Payable | $1.452B | $1.105B | $1.452B |
| YoY Change | 12.96% | 3.94% | 12.91% |
| Accrued Expenses | $478.3M | $471.4M | $475.0M |
| YoY Change | -0.7% | 1.71% | 6.74% |
| Deferred Revenue | |||
| YoY Change | |||
| Short-Term Debt | $1.578B | $1.353B | $1.578B |
| YoY Change | 280.32% | 212.47% | 280.24% |
| Long-Term Debt Due | $760.0M | $869.2M | $762.0M |
| YoY Change | 108.28% | 15.86% | 107.63% |
| Total Short-Term Liabilities | $5.036B | $4.461B | $5.036B |
| YoY Change | 57.38% | 29.24% | 57.38% |
| LONG-TERM LIABILITIES | |||
| Long-Term Debt | $14.32B | $13.98B | $14.34B |
| YoY Change | -1.05% | 0.84% | -1.07% |
| Other Long-Term Liabilities | $393.7M | $409.1M | $14.46B |
| YoY Change | -64.89% | 7.02% | 18.45% |
| Total Long-Term Liabilities | $33.48B | $33.04B | $28.79B |
| YoY Change | -2.73% | -2.77% | 7.85% |
| TOTAL LIABILITIES | |||
| Total Short-Term Liabilities | $5.036B | $4.461B | $5.036B |
| Total Long-Term Liabilities | $33.48B | $33.04B | $28.79B |
| Total Liabilities | $38.52B | $37.51B | $38.52B |
| YoY Change | 2.39% | 0.18% | 2.39% |
| SHAREHOLDERS EQUITY | |||
| Retained Earnings | $7.978B | $8.618B | |
| YoY Change | -2.66% | -14.87% | |
| Common Stock | $5.436B | $2.548M | |
| YoY Change | 213243.05% | 0.0% | |
| Preferred Stock | |||
| YoY Change | |||
| Treasury Stock (at cost) | $5.398B | $5.462B | |
| YoY Change | -1.84% | -0.66% | |
| Treasury Stock Shares | 75.24M shares | 75.13M shares | |
| Shareholders Equity | $7.993B | $8.690B | $8.190B |
| YoY Change | |||
| Total Liabilities & Shareholders Equity | $46.71B | $46.40B | $46.71B |
| YoY Change | 1.75% | -2.81% | 1.75% |
Cashflow Statement
| Concept | 2017 Q4 | 2017 Q3 | 2017 |
|---|---|---|---|
| OPERATING ACTIVITIES | |||
| Net Income | -$479.1M | $398.2M | $411.6M |
| YoY Change | -72.92% | 2.58% | -170.53% |
| Depreciation, Depletion And Amortization | $517.0M | $518.9M | $2.079B |
| YoY Change | -9.99% | -3.21% | -2.11% |
| Cash From Operating Activities | $910.7M | $893.1M | $2.624B |
| YoY Change | 22.03% | -10.72% | -12.51% |
| INVESTING ACTIVITIES | |||
| Capital Expenditures | -$1.153B | -$918.7M | -$4.002B |
| YoY Change | 23.86% | 23.05% | -1.06% |
| Acquisitions | |||
| YoY Change | |||
| Other Investing Activities | $140.2M | -$138.9M | -$1.078M |
| YoY Change | 120.44% | -558.42% | -88.09% |
| Cash From Investing Activities | -$1.013B | -$1.057B | -$3.841B |
| YoY Change | 16.81% | 47.63% | -0.23% |
| FINANCING ACTIVITIES | |||
| Cash Dividend Paid | |||
| YoY Change | |||
| Common Stock Issuance & Retirement, Net | $0.00 | ||
| YoY Change | |||
| Debt Paid & Issued, Net | $1.586B | ||
| YoY Change | -70.15% | ||
| Cash From Financing Activities | 337.6M | -223.8M | $811.0M |
| YoY Change | 21000.0% | -919.78% | 17.83% |
| NET CHANGE | |||
| Cash From Operating Activities | 910.7M | 893.1M | $2.624B |
| Cash From Investing Activities | -1.013B | -1.057B | -$3.841B |
| Cash From Financing Activities | 337.6M | -223.8M | $811.0M |
| Net Change In Cash | 235.0M | -388.2M | -$406.6M |
| YoY Change | -296.49% | -224.7% | 149.25% |
| FREE CASH FLOW | |||
| Cash From Operating Activities | $910.7M | $893.1M | $2.624B |
| Capital Expenditures | -$1.153B | -$918.7M | -$4.002B |
| Free Cash Flow | $2.064B | $1.812B | $6.625B |
| YoY Change | 23.05% | 3.72% | -5.93% |
Facts In Submission
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|
3000000 | USD |
| CY2016 | etr |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Assetand Liability Unrealized Gains Loss Includedin Earnings
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetandLiabilityUnrealizedGainsLossIncludedinEarnings
|
0 | USD |
| CY2017 | etr |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Assetand Liability Unrealized Gains Loss Includedin Earnings
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetandLiabilityUnrealizedGainsLossIncludedinEarnings
|
900000 | USD |
| CY2016Q4 | etr |
Fuel Inventory At Average Cost
FuelInventoryAtAverageCost
|
179600000 | USD |
| CY2015 | etr |
Depreciation Rates On Average Depreciable Non Utility Property
DepreciationRatesOnAverageDepreciableNonUtilityProperty
|
0.054 | |
| CY2016 | etr |
Depreciation Rates On Average Depreciable Non Utility Property
DepreciationRatesOnAverageDepreciableNonUtilityProperty
|
0.052 | |
| CY2017 | etr |
Depreciation Rates On Average Depreciable Non Utility Property
DepreciationRatesOnAverageDepreciableNonUtilityProperty
|
0.223 | |
| CY2015 | etr |
Depreciation Rates On Average Depreciable Utility Property
DepreciationRatesOnAverageDepreciableUtilityProperty
|
0.027 | |
| CY2016 | etr |
Depreciation Rates On Average Depreciable Utility Property
DepreciationRatesOnAverageDepreciableUtilityProperty
|
0.026 | |
| CY2017 | etr |
Depreciation Rates On Average Depreciable Utility Property
DepreciationRatesOnAverageDepreciableUtilityProperty
|
0.026 | |
| CY2015 | etr |
Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Tax
DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionTax
|
-85000000 | USD |
| CY2016 | etr |
Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Tax
DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionTax
|
103000000 | USD |
| CY2017 | etr |
Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Tax
DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionTax
|
38000000 | USD |
| CY2015 | etr |
Effective Income Tax Rate Reconciliation Fitzpatrick Disposition Amount
EffectiveIncomeTaxRateReconciliationFitzpatrickDispositionAmount
|
0 | USD |
| CY2016 | etr |
Effective Income Tax Rate Reconciliation Fitzpatrick Disposition Amount
EffectiveIncomeTaxRateReconciliationFitzpatrickDispositionAmount
|
0 | USD |
| CY2017 | etr |
Effective Income Tax Rate Reconciliation Fitzpatrick Disposition Amount
EffectiveIncomeTaxRateReconciliationFitzpatrickDispositionAmount
|
44344000 | USD |
| CY2015 | etr |
Equity Component Of Allowance For Funds Used During Construction
EquityComponentOfAllowanceForFundsUsedDuringConstruction
|
18191000 | USD |
| CY2017Q4 | etr |
Fuel Inventory At Average Cost
FuelInventoryAtAverageCost
|
182643000 | USD |
| CY2016Q4 | etr |
Hedge Contracts In Liability Position
HedgeContractsInLiabilityPosition
|
8000000 | USD |
| CY2017Q4 | etr |
Hedge Contracts In Liability Position
HedgeContractsInLiabilityPosition
|
65000000 | USD |
| CY2015 | etr |
Income Tax Reconciliation Amortization Of Investment Tax Credits
IncomeTaxReconciliationAmortizationOfInvestmentTaxCredits
|
11136000 | USD |
| CY2016 | etr |
Income Tax Reconciliation Amortization Of Investment Tax Credits
IncomeTaxReconciliationAmortizationOfInvestmentTaxCredits
|
10889000 | USD |
| CY2017 | etr |
Income Tax Reconciliation Amortization Of Investment Tax Credits
IncomeTaxReconciliationAmortizationOfInvestmentTaxCredits
|
10204000 | USD |
| CY2015 | etr |
Income Tax Reconciliation Flow Through Permanent Differences
IncomeTaxReconciliationFlowThroughPermanentDifferences
|
7872000 | USD |
| CY2016 | etr |
Income Tax Reconciliation Flow Through Permanent Differences
IncomeTaxReconciliationFlowThroughPermanentDifferences
|
19307000 | USD |
| CY2017 | etr |
Income Tax Reconciliation Flow Through Permanent Differences
IncomeTaxReconciliationFlowThroughPermanentDifferences
|
-8727000 | USD |
| CY2015 | etr |
Income Tax Reconciliation Provision For Uncertain Tax Positions
IncomeTaxReconciliationProvisionForUncertainTaxPositions
|
56683000 | USD |
| CY2016 | etr |
Income Tax Reconciliation Provision For Uncertain Tax Positions
IncomeTaxReconciliationProvisionForUncertainTaxPositions
|
67119000 | USD |
| CY2017 | etr |
Income Tax Reconciliation Provision For Uncertain Tax Positions
IncomeTaxReconciliationProvisionForUncertainTaxPositions
|
-8756000 | USD |
| CY2015 | etr |
Income Tax Reconciliation Regulatory Differences Utility Plant Items
IncomeTaxReconciliationRegulatoryDifferencesUtilityPlantItems
|
32089000 | USD |
| CY2016 | etr |
Income Tax Reconciliation Regulatory Differences Utility Plant Items
IncomeTaxReconciliationRegulatoryDifferencesUtilityPlantItems
|
33581000 | USD |
| CY2017 | etr |
Income Tax Reconciliation Regulatory Differences Utility Plant Items
IncomeTaxReconciliationRegulatoryDifferencesUtilityPlantItems
|
39825000 | USD |
| CY2015Q1 | etr |
Incometaxbenefitresultingfrom20062007audit
Incometaxbenefitresultingfrom20062007audit
|
20000000 | USD |
| CY2015 | etr |
Increase Decrease In Decommissioning Liability Asset Retirement Obligation
IncreaseDecreaseInDecommissioningLiabilityAssetRetirementObligation
|
280272000 | USD |
| CY2016 | etr |
Increase Decrease In Decommissioning Liability Asset Retirement Obligation
IncreaseDecreaseInDecommissioningLiabilityAssetRetirementObligation
|
327425000 | USD |
| CY2017 | etr |
Increase Decrease In Decommissioning Liability Asset Retirement Obligation
IncreaseDecreaseInDecommissioningLiabilityAssetRetirementObligation
|
405685000 | USD |
| CY2015 | etr |
Increase Reductioninincometaxresultingfrom Act55financingsettlement
IncreaseReductioninincometaxresultingfromAct55financingsettlement
|
0 | USD |
| CY2016 | etr |
Increase Reductioninincometaxresultingfrom Act55financingsettlement
IncreaseReductioninincometaxresultingfromAct55financingsettlement
|
63477000 | USD |
| CY2017 | etr |
Increase Reductioninincometaxresultingfrom Act55financingsettlement
IncreaseReductioninincometaxresultingfromAct55financingsettlement
|
0 | USD |
| CY2015 | etr |
Increase Reductioninincometaxresultingfrom Entergy Wholesale Commoditiesrestructuring
IncreaseReductioninincometaxresultingfromEntergyWholesaleCommoditiesrestructuring
|
0 | USD |
| CY2017 | etr |
Other Regulatory Charges Credits Net
OtherRegulatoryChargesCreditsNet
|
-131901000 | USD |
| CY2016 | etr |
Increase Reductioninincometaxresultingfrom Entergy Wholesale Commoditiesrestructuring
IncreaseReductioninincometaxresultingfromEntergyWholesaleCommoditiesrestructuring
|
237760000 | USD |
| CY2017 | etr |
Increase Reductioninincometaxresultingfrom Entergy Wholesale Commoditiesrestructuring
IncreaseReductioninincometaxresultingfromEntergyWholesaleCommoditiesrestructuring
|
373277000 | USD |
| CY2015 | etr |
Increase Reductionintaxresultingfrom Louisianabusinesscombination
IncreaseReductionintaxresultingfromLouisianabusinesscombination
|
333655000 | USD |
| CY2016 | etr |
Increase Reductionintaxresultingfrom Louisianabusinesscombination
IncreaseReductionintaxresultingfromLouisianabusinesscombination
|
0 | USD |
| CY2017 | etr |
Increase Reductionintaxresultingfrom Louisianabusinesscombination
IncreaseReductionintaxresultingfromLouisianabusinesscombination
|
0 | USD |
| CY2015Q3 | etr |
Increaseto2009 Federal Income Tax Liability
Increaseto2009FederalIncomeTaxLiability
|
2400000 | USD |
| CY2017Q4 | etr |
Insurance Coverage For Public Liability
InsuranceCoverageForPublicLiability
|
450000000 | USD |
| CY2017Q4 | etr |
Insurancecoverageforpublicliabilitypriorto January12017
InsurancecoverageforpublicliabilitypriortoJanuary12017
|
375000000 | USD |
| CY2017Q4 | etr |
Issuanceoflettersofcreditlimitoftotalborrowingcapacity
Issuanceoflettersofcreditlimitoftotalborrowingcapacity
|
20000000 | USD |
| CY2017Q4 | etr |
Letters Of Credit
LettersOfCredit
|
6000000 | USD |
| CY2017Q4 | etr |
Lettersof Credit Held
LettersofCreditHeld
|
34000000 | USD |
| CY2018Q1 | etr |
Limiton Annual Net Operating Lossasa Percentof Annual Taxable Income
LimitonAnnualNetOperatingLossasaPercentofAnnualTaxableIncome
|
0.8 | |
| CY2015 | etr |
Litigation Proceeds For Reimbursement Of Spent Nuclear Fuel Storage Costs
LitigationProceedsForReimbursementOfSpentNuclearFuelStorageCosts
|
18296000 | USD |
| CY2016 | etr |
Litigation Proceeds For Reimbursement Of Spent Nuclear Fuel Storage Costs
LitigationProceedsForReimbursementOfSpentNuclearFuelStorageCosts
|
169085000 | USD |
| CY2017 | etr |
Litigation Proceeds For Reimbursement Of Spent Nuclear Fuel Storage Costs
LitigationProceedsForReimbursementOfSpentNuclearFuelStorageCosts
|
25493000 | USD |
| CY2017 | etr |
Maximum Conventional Property Insurance Coverage On Each And Every Loss Basis
MaximumConventionalPropertyInsuranceCoverageOnEachAndEveryLossBasis
|
400000000 | USD |
| CY2017 | etr |
Maximum Recovery Nuclear Insurance Policies For Property Damage Caused By Terrorist Act
MaximumRecoveryNuclearInsurancePoliciesForPropertyDamageCausedByTerroristAct
|
3240000000 | USD |
| CY2017Q4 | etr |
Maximum Retrospective Insurance Premium Obligation Per Reactor Per Incident
MaximumRetrospectiveInsurancePremiumObligationPerReactorPerIncident
|
127300000 | USD |
| CY2017 | etr |
Maximumlengthoftimeoverwhich Companyiscurrentlyhedgingthevariabilityinfuturecashflowsforforecastedpowertransactions
MaximumlengthoftimeoverwhichCompanyiscurrentlyhedgingthevariabilityinfuturecashflowsforforecastedpowertransactions
|
P3Y3M | |
| CY2017Q4 | etr |
Maximumretrospectiveinsurancepremiumobligationperincident
Maximumretrospectiveinsurancepremiumobligationperincident
|
1146000000 | USD |
| CY2016Q4 | etr |
Natural Gas
NaturalGas
|
413224000 | USD |
| CY2017Q4 | etr |
Natural Gas
NaturalGas
|
453162000 | USD |
| CY2017 | etr |
Net Decreasein Deferred Tax Assets Relatedto Excess Adit
NetDecreaseinDeferredTaxAssetsRelatedtoExcessADIT
|
560000000 | USD |
| CY2017Q4 | etr |
Netoftaxreductionregulatoryliabilities
Netoftaxreductionregulatoryliabilities
|
34000000 | USD |
| CY2016Q4 | etr |
Noncurrentaccruedtaxesincludingunrecognizedtaxbenefits
Noncurrentaccruedtaxesincludingunrecognizedtaxbenefits
|
991704000 | USD |
| CY2017Q4 | etr |
Noncurrentaccruedtaxesincludingunrecognizedtaxbenefits
Noncurrentaccruedtaxesincludingunrecognizedtaxbenefits
|
956547000 | USD |
| CY2015 | etr |
Nuclear Fuel Purchases
NuclearFuelPurchases
|
493604000 | USD |
| CY2016 | etr |
Nuclear Fuel Purchases
NuclearFuelPurchases
|
314706000 | USD |
| CY2017 | etr |
Nuclear Fuel Purchases
NuclearFuelPurchases
|
377324000 | USD |
| CY2015 | etr |
Nuclear Refueling Outage Expenses
NuclearRefuelingOutageExpenses
|
251316000 | USD |
| CY2016 | etr |
Nuclear Refueling Outage Expenses
NuclearRefuelingOutageExpenses
|
208678000 | USD |
| CY2017 | etr |
Nuclear Refueling Outage Expenses
NuclearRefuelingOutageExpenses
|
168151000 | USD |
| CY2017 | etr |
Number Of Equity Ownership Plans
NumberOfEquityOwnershipPlans
|
3 | plan |
| CY2017 | etr |
Number Of Nuclear Reactor Included In Secondary Financial Protection Program
NumberOfNuclearReactorIncludedInSecondaryFinancialProtectionProgram
|
102 | reactor |
| CY2016 | etr |
Numberof Derivative Contract Counterpartiesina Liability Position
NumberofDerivativeContractCounterpartiesinaLiabilityPosition
|
3 | counterparty |
| CY2017 | etr |
Numberof Derivative Contract Counterpartiesina Liability Position
NumberofDerivativeContractCounterpartiesinaLiabilityPosition
|
8 | counterparty |
| CY2017 | etr |
Numberof Financial Protection Programs
NumberofFinancialProtectionPrograms
|
2 | program |
| CY2015 | etr |
Nypa Value Sharing Payment
NypaValueSharingPayment
|
70790000 | USD |
| CY2016 | etr |
Nypa Value Sharing Payment
NypaValueSharingPayment
|
0 | USD |
| CY2017 | etr |
Nypa Value Sharing Payment
NypaValueSharingPayment
|
0 | USD |
| CY2015 | etr |
Offsettogrossunrecognizedtaxbenefitscreditandlosscarryforward
Offsettogrossunrecognizedtaxbenefitscreditandlosscarryforward
|
1264483000 | USD |
| CY2016 | etr |
Offsettogrossunrecognizedtaxbenefitscreditandlosscarryforward
Offsettogrossunrecognizedtaxbenefitscreditandlosscarryforward
|
2922085000 | USD |
| CY2017 | etr |
Offsettogrossunrecognizedtaxbenefitscreditandlosscarryforward
Offsettogrossunrecognizedtaxbenefitscreditandlosscarryforward
|
3945524000 | USD |
| CY2015 | etr |
Other Regulatory Charges Credits Net
OtherRegulatoryChargesCreditsNet
|
175304000 | USD |
| CY2016 | etr |
Other Regulatory Charges Credits Net
OtherRegulatoryChargesCreditsNet
|
94243000 | USD |
| CY2017Q4 | etr |
Preferred Equity Authorized
PreferredEquityAuthorized
|
642307 | shares |
| CY2016Q4 | etr |
Preferred Equity Outstanding
PreferredEquityOutstanding
|
825105 | shares |
| CY2017Q4 | etr |
Preferred Equity Outstanding
PreferredEquityOutstanding
|
642307 | shares |
| CY2016 | etr |
Preferred Stock Redemptions
PreferredStockRedemptions
|
2889000 | USD |
| CY2017 | etr |
Preferred Stock Redemptions
PreferredStockRedemptions
|
596000 | USD |
| CY2016Q4 | etr |
Public Utilities Property Plant And Equipment Nuclear Fuel Leased And Owned
PublicUtilitiesPropertyPlantAndEquipmentNuclearFuelLeasedAndOwned
|
1038000000 | USD |
| CY2015 | etr |
Pension And Other Postretirement Liabilities
PensionAndOtherPostretirementLiabilities
|
-103185000 | USD |
| CY2016 | etr |
Pension And Other Postretirement Liabilities
PensionAndOtherPostretirementLiabilities
|
2842000 | USD |
| CY2017 | etr |
Pension And Other Postretirement Liabilities
PensionAndOtherPostretirementLiabilities
|
61653000 | USD |
| CY2016 | etr |
Pensionand Other Postretirement Costs Reclassification Out Of Accumulated Other Comprehensive Income Before Tax
PensionandOtherPostretirementCostsReclassificationOutOfAccumulatedOtherComprehensiveIncomeBeforeTax
|
-34331000 | USD |
| CY2017 | etr |
Pensionand Other Postretirement Costs Reclassification Out Of Accumulated Other Comprehensive Income Before Tax
PensionandOtherPostretirementCostsReclassificationOutOfAccumulatedOtherComprehensiveIncomeBeforeTax
|
-67295000 | USD |
| CY2017 | etr |
Percentageof Weekly Indemnity Paid After Deductible Final Periodhas Passed
PercentageofWeeklyIndemnityPaidAfterDeductibleFinalPeriodhasPassed
|
0.80 | |
| CY2017 | etr |
Percentageof Weekly Indemnity Paid After Deductible First Periodhas Passed
PercentageofWeeklyIndemnityPaidAfterDeductibleFirstPeriodhasPassed
|
1.00 | |
| CY2017 | etr |
Percentageof Weekly Indemnity Paid After Deductible Second Periodhas Passed
PercentageofWeeklyIndemnityPaidAfterDeductibleSecondPeriodhasPassed
|
0.80 | |
| CY2016Q4 | etr |
Preferred Equity
PreferredEquity
|
178936000 | USD |
| CY2017Q4 | etr |
Preferred Equity
PreferredEquity
|
173554000 | USD |
| CY2016Q4 | etr |
Preferred Equity Authorized
PreferredEquityAuthorized
|
825105 | shares |
| CY2017Q4 | etr |
Public Utilities Property Plant And Equipment Nuclear Fuel Leased And Owned
PublicUtilitiesPropertyPlantAndEquipmentNuclearFuelLeasedAndOwned
|
923000000 | USD |
| CY2016Q4 | etr |
Public Utilities Property Plant And Equipment Other
PublicUtilitiesPropertyPlantAndEquipmentOther
|
1636000000 | USD |
| CY2017Q4 | etr |
Public Utilities Property Plant And Equipment Other
PublicUtilitiesPropertyPlantAndEquipmentOther
|
1755000000 | USD |
| CY2017 | etr |
Purchase Of Terrorism Insurance Coverage
PurchaseOfTerrorismInsuranceCoverage
|
300000000 | USD |
| CY2017Q4 | etr |
Rate Of Maximum Retrospective Premium Per Year Per Nuclear Power Reactor
RateOfMaximumRetrospectivePremiumPerYearPerNuclearPowerReactor
|
19000000 | USD |
| CY2016Q3 | etr |
Receivablesrecordedforbeneficialinterestsindecommissioningtrustfunds
Receivablesrecordedforbeneficialinterestsindecommissioningtrustfunds
|
1500000000 | USD |
| CY2016 | etr |
Recognized Net Gain Loss Due To Settlements Before Tax
RecognizedNetGainLossDueToSettlementsBeforeTax
|
-2007000 | USD |
| CY2017 | etr |
Recognized Net Gain Loss Due To Settlements Before Tax
RecognizedNetGainLossDueToSettlementsBeforeTax
|
-7544000 | USD |
| CY2009Q4 | etr |
Reduction In Taxable Income Relating To2009 Cam Settlement
ReductionInTaxableIncomeRelatingTo2009CamSettlement
|
5700000000 | USD |
| CY2013Q4 | etr |
Reductioninfee Entergysnuclearownerlicenseesubsidiarieshavebeenchargedrelatedtospentnuclearfuelstorage
ReductioninfeeEntergysnuclearownerlicenseesubsidiarieshavebeenchargedrelatedtospentnuclearfuelstorage
|
0 | USD |
| CY2016 | etr |
Reductionof Income Tax Expense Netof Unrecognized Tax Benefits Resulting From Tax Election
ReductionofIncomeTaxExpenseNetofUnrecognizedTaxBenefitsResultingFromTaxElection
|
238000000 | USD |
| CY2017 | etr |
Reductionof Income Tax Expense Netof Unrecognized Tax Benefits Resulting From Tax Election
ReductionofIncomeTaxExpenseNetofUnrecognizedTaxBenefitsResultingFromTaxElection
|
373000000 | USD |
| CY2016Q4 | etr |
Regulatory Liability For Income Taxes Net
RegulatoryLiabilityForIncomeTaxesNet
|
0 | USD |
| CY2017Q4 | etr |
Regulatory Liability For Income Taxes Net
RegulatoryLiabilityForIncomeTaxesNet
|
2900204000 | USD |
| CY2015Q4 | etr |
Regulatory Liability Net Of Tax
RegulatoryLiabilityNetOfTax
|
66000000 | USD |
| CY2015Q4 | etr |
Remaining Balances Of Unrecognized Tax Benefits
RemainingBalancesOfUnrecognizedTaxBenefits
|
1657000000 | USD |
| CY2016Q4 | etr |
Remaining Balances Of Unrecognized Tax Benefits
RemainingBalancesOfUnrecognizedTaxBenefits
|
2670000000 | USD |
| CY2017Q4 | etr |
Remaining Balances Of Unrecognized Tax Benefits
RemainingBalancesOfUnrecognizedTaxBenefits
|
3410000000 | USD |
| CY2016Q4 | etr |
Requestedpaymentto Entergyforearlyterminationofpurchasedpoweragreement
RequestedpaymenttoEntergyforearlyterminationofpurchasedpoweragreement
|
172000000 | USD |
| CY2016Q4 | etr |
Sfas Regulatory Asset Net
SfasRegulatoryAssetNet
|
761280000 | USD |
| CY2017Q4 | etr |
Sfas Regulatory Asset Net
SfasRegulatoryAssetNet
|
0 | USD |
| CY2015Q3 | etr |
Tax Deduction Relatedto Nuclear Decommissioning Tax Liability
TaxDeductionRelatedtoNuclearDecommissioningTaxLiability
|
118000000 | USD |
| CY2016 | etr |
Taxbenefitrelatedtotreatmentof Vidaliapurchasedpoweragreement
TaxbenefitrelatedtotreatmentofVidaliapurchasedpoweragreement
|
75000000 | USD |
| CY2016 | etr |
Taxbenefitrelatedtotreatmentofproceedsreceivedforfinancingof Hurricanes Gustavand Ikepursuantto Louisiana Act55
TaxbenefitrelatedtotreatmentofproceedsreceivedforfinancingofHurricanesGustavandIkepursuanttoLouisianaAct55
|
54000000 | USD |
| CY2016Q4 | etr |
Temporary Cash Investments Fair Value
TemporaryCashInvestmentsFairValue
|
1058000000 | USD |
| CY2017Q4 | etr |
Temporary Cash Investments Fair Value
TemporaryCashInvestmentsFairValue
|
725000000 | USD |
| CY2017 | etr |
Total Premium For Reactor Under Secondary Financial Protection Program
TotalPremiumForReactorUnderSecondaryFinancialProtectionProgram
|
13000000000 | USD |
| CY2015Q4 | etr |
Unrecognized Tax Benefits Net Of Unused Tax Attributes And Payments
UnrecognizedTaxBenefitsNetOfUnusedTaxAttributesAndPayments
|
1347102000 | USD |
| CY2016Q4 | etr |
Unrecognized Tax Benefits Net Of Unused Tax Attributes And Payments
UnrecognizedTaxBenefitsNetOfUnusedTaxAttributesAndPayments
|
977770000 | USD |
| CY2017Q4 | etr |
Unrecognized Tax Benefits Net Of Unused Tax Attributes And Payments
UnrecognizedTaxBenefitsNetOfUnusedTaxAttributesAndPayments
|
916322000 | USD |
| CY2016Q4 | etr |
Valuationallowancesondeferredtaxassetsrelatedtostatejurisdictions
Valuationallowancesondeferredtaxassetsrelatedtostatejurisdictions
|
42300000 | USD |
| CY2017Q4 | etr |
Valuationallowancesondeferredtaxassetsrelatedtostatejurisdictions
Valuationallowancesondeferredtaxassetsrelatedtostatejurisdictions
|
31000000 | USD |
| CY2017Q4 | etr |
Volume Of Natural Gas Swaps Outstanding
VolumeOfNaturalGasSwapsOutstanding
|
38540750 | MMBTU |
| CY2017Q4 | etr |
Volumeof Fixed Transmission Rights Outstanding
VolumeofFixedTransmissionRightsOutstanding
|
46474 | GWh |
| CY2017Q1 | etr |
Writeoffofdeferredtaxassetresultingfromimplementationofaccountingstandard
Writeoffofdeferredtaxassetresultingfromimplementationofaccountingstandard
|
11500000 | USD |
| CY2016Q4 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
1285577000 | USD |
| CY2017Q4 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
1452216000 | USD |
| CY2016Q4 | us-gaap |
Accounts Receivable Gross Current
AccountsReceivableGrossCurrent
|
654995000 | USD |
| CY2017Q4 | us-gaap |
Accounts Receivable Gross Current
AccountsReceivableGrossCurrent
|
673347000 | USD |
| CY2016Q4 | us-gaap |
Accounts Receivable Net Current
AccountsReceivableNetCurrent
|
1170167000 | USD |
| CY2017Q4 | us-gaap |
Accounts Receivable Net Current
AccountsReceivableNetCurrent
|
1212950000 | USD |
| CY2016Q4 | us-gaap |
Accrued Liabilities Current
AccruedLiabilitiesCurrent
|
481636000 | USD |
| CY2017Q4 | us-gaap |
Accrued Liabilities Current
AccruedLiabilitiesCurrent
|
478273000 | USD |
| CY2016Q4 | us-gaap |
Accumulated Deferred Investment Tax Credit
AccumulatedDeferredInvestmentTaxCredit
|
227147000 | USD |
| CY2017Q4 | us-gaap |
Accumulated Deferred Investment Tax Credit
AccumulatedDeferredInvestmentTaxCredit
|
219634000 | USD |
| CY2016Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
169000000 | USD |
| CY2017Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
167000000 | USD |
| CY2015Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
8951000 | USD |
| CY2016Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
-34971000 | USD |
| CY2017Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
-23531000 | USD |
| CY2016Q4 | us-gaap |
Additional Paid In Capital
AdditionalPaidInCapital
|
5417245000 | USD |
| CY2017Q4 | us-gaap |
Additional Paid In Capital
AdditionalPaidInCapital
|
5433433000 | USD |
| CY2016Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
11924000 | USD |
| CY2017Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
13587000 | USD |
| CY2015 | us-gaap |
Allowance For Funds Used During Construction Investing Activities
AllowanceForFundsUsedDuringConstructionInvestingActivities
|
53635000 | USD |
| CY2016 | us-gaap |
Allowance For Funds Used During Construction Investing Activities
AllowanceForFundsUsedDuringConstructionInvestingActivities
|
68345000 | USD |
| CY2017 | us-gaap |
Allowance For Funds Used During Construction Investing Activities
AllowanceForFundsUsedDuringConstructionInvestingActivities
|
96000000 | USD |
| CY2015 | us-gaap |
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
|
7399820 | shares |
| CY2016 | us-gaap |
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
|
7137210 | shares |
| CY2017 | us-gaap |
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
|
2927512 | shares |
| CY2015Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
4790200000 | USD |
| CY2016Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
6706800000 | USD |
| CY2017Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
6185800000 | USD |
| CY2016 | us-gaap |
Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
|
359900000 | USD |
| CY2017 | us-gaap |
Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
|
431500000 | USD |
| CY2016 | us-gaap |
Asset Retirement Obligation Liabilities Incurred
AssetRetirementObligationLiabilitiesIncurred
|
1162500000 | USD |
| CY2017Q1 | us-gaap |
Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
|
727300000 | USD |
| CY2016 | us-gaap |
Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
|
140300000 | USD |
| CY2017 | us-gaap |
Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
|
120600000 | USD |
| CY2016 | us-gaap |
Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
|
534500000 | USD |
| CY2017 | us-gaap |
Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
|
-104600000 | USD |
| CY2016Q4 | us-gaap |
Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax
AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
|
1707000000 | USD |
| CY2017Q4 | us-gaap |
Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax
AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
|
2175000000 | USD |
| CY2016Q4 | us-gaap |
Available For Sale Securities
AvailableForSaleSecurities
|
5724000000 | USD |
| CY2017Q4 | us-gaap |
Available For Sale Securities
AvailableForSaleSecurities
|
7212000000 | USD |
| CY2016Q4 | us-gaap |
Asset Retirement Obligations Noncurrent
AssetRetirementObligationsNoncurrent
|
5992476000 | USD |
| CY2017Q4 | us-gaap |
Asset Retirement Obligations Noncurrent
AssetRetirementObligationsNoncurrent
|
6185814000 | USD |
| CY2016Q4 | us-gaap |
Assets
Assets
|
45904434000 | USD |
| CY2017Q4 | us-gaap |
Assets Noncurrent
AssetsNoncurrent
|
5842425000 | USD |
| CY2016Q4 | us-gaap |
Available For Sale Debt Securities Amortized Cost Basis
AvailableForSaleDebtSecuritiesAmortizedCostBasis
|
2212000000 | USD |
| CY2017Q4 | us-gaap |
Available For Sale Debt Securities Amortized Cost Basis
AvailableForSaleDebtSecuritiesAmortizedCostBasis
|
2539000000 | USD |
| CY2017Q4 | us-gaap |
Assets
Assets
|
46707149000 | USD |
| CY2016Q4 | us-gaap |
Assets Current
AssetsCurrent
|
3684268000 | USD |
| CY2017Q4 | us-gaap |
Assets Current
AssetsCurrent
|
3285331000 | USD |
| CY2016Q4 | us-gaap |
Assets Fair Value Disclosure
AssetsFairValueDisclosure
|
7311000000 | USD |
| CY2017Q4 | us-gaap |
Assets Fair Value Disclosure
AssetsFairValueDisclosure
|
8414000000 | USD |
| CY2016Q4 | us-gaap |
Assets Noncurrent
AssetsNoncurrent
|
7871359000 | USD |
| CY2016Q4 | us-gaap |
Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax
AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
|
28000000 | USD |
| CY2017Q4 | us-gaap |
Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax
AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
|
17000000 | USD |
| CY2016Q4 | us-gaap |
Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value
AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue
|
719000000 | USD |
| CY2017Q4 | us-gaap |
Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value
AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue
|
812000000 | USD |
| CY2016Q4 | us-gaap |
Available For Sale Securities Debt Maturities After One Through Five Years Fair Value
AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
|
763000000 | USD |
| CY2017Q4 | us-gaap |
Available For Sale Securities Debt Maturities After One Through Five Years Fair Value
AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
|
902000000 | USD |
| CY2016Q4 | us-gaap |
Available For Sale Securities Debt Maturities Within One Year Fair Value
AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue
|
125000000 | USD |
| CY2017Q4 | us-gaap |
Available For Sale Securities Debt Maturities Within One Year Fair Value
AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue
|
74000000 | USD |
| CY2016Q4 | us-gaap |
Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
|
2213000000 | USD |
| CY2017Q4 | us-gaap |
Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
|
2550000000 | USD |
| CY2015 | us-gaap |
Available For Sale Securities Gross Realized Gains
AvailableForSaleSecuritiesGrossRealizedGains
|
72000000 | USD |
| CY2016 | us-gaap |
Available For Sale Securities Gross Realized Gains
AvailableForSaleSecuritiesGrossRealizedGains
|
32000000 | USD |
| CY2017 | us-gaap |
Available For Sale Securities Gross Realized Gains
AvailableForSaleSecuritiesGrossRealizedGains
|
149000000 | USD |
| CY2015 | us-gaap |
Available For Sale Securities Gross Realized Losses
AvailableForSaleSecuritiesGrossRealizedLosses
|
13000000 | USD |
| CY2016 | us-gaap |
Available For Sale Securities Gross Realized Losses
AvailableForSaleSecuritiesGrossRealizedLosses
|
13000000 | USD |
| CY2017 | us-gaap |
Available For Sale Securities Gross Realized Losses
AvailableForSaleSecuritiesGrossRealizedLosses
|
13000000 | USD |
| CY2016 | us-gaap |
Available For Sale Securities Income Tax Expense On Change In Unrealized Holding Gain Or Loss
AvailableForSaleSecuritiesIncomeTaxExpenseOnChangeInUnrealizedHoldingGainOrLoss
|
399000000 | USD |
| CY2017 | us-gaap |
Available For Sale Securities Income Tax Expense On Change In Unrealized Holding Gain Or Loss
AvailableForSaleSecuritiesIncomeTaxExpenseOnChangeInUnrealizedHoldingGainOrLoss
|
479000000 | USD |
| CY2016Q4 | us-gaap |
Capital Lease Obligations Current
CapitalLeaseObligationsCurrent
|
2423000 | USD |
| CY2017Q4 | us-gaap |
Capital Lease Obligations Current
CapitalLeaseObligationsCurrent
|
1502000 | USD |
| CY2016Q4 | us-gaap |
Capital Lease Obligations Noncurrent
CapitalLeaseObligationsNoncurrent
|
24582000 | USD |
| CY2017Q4 | us-gaap |
Capital Lease Obligations Noncurrent
CapitalLeaseObligationsNoncurrent
|
22015000 | USD |
| CY2016Q4 | us-gaap |
Capital Leased Assets Gross
CapitalLeasedAssetsGross
|
619527000 | USD |
| CY2017Q4 | us-gaap |
Capital Leased Assets Gross
CapitalLeasedAssetsGross
|
620544000 | USD |
| CY2017Q4 | us-gaap |
Capital Leases Future Minimum Payments Due
CapitalLeasesFutureMinimumPaymentsDue
|
33570000 | USD |
| CY2017Q4 | us-gaap |
Capital Leases Future Minimum Payments Due Current
CapitalLeasesFutureMinimumPaymentsDueCurrent
|
3018000 | USD |
| CY2017Q4 | us-gaap |
Capital Leases Future Minimum Payments Due In Five Years
CapitalLeasesFutureMinimumPaymentsDueInFiveYears
|
2887000 | USD |
| CY2017Q4 | us-gaap |
Capital Leases Future Minimum Payments Due In Four Years
CapitalLeasesFutureMinimumPaymentsDueInFourYears
|
2887000 | USD |
| CY2017Q4 | us-gaap |
Capital Leases Future Minimum Payments Due In Three Years
CapitalLeasesFutureMinimumPaymentsDueInThreeYears
|
2887000 | USD |
| CY2017Q4 | us-gaap |
Capital Leases Future Minimum Payments Due In Two Years
CapitalLeasesFutureMinimumPaymentsDueInTwoYears
|
2887000 | USD |
| CY2017Q4 | us-gaap |
Capital Leases Future Minimum Payments Due Thereafter
CapitalLeasesFutureMinimumPaymentsDueThereafter
|
19004000 | USD |
| CY2016 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
45249000 | USD |
| CY2017 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
29595000 | USD |
| CY2017Q4 | us-gaap |
Capital Leases Future Minimum Payments Interest Included In Payments
CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments
|
10051000 | USD |
| CY2017Q4 | us-gaap |
Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments
CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments
|
23519000 | USD |
| CY2016Q4 | us-gaap |
Cash
Cash
|
129579000 | USD |
| CY2017Q4 | us-gaap |
Cash
Cash
|
56629000 | USD |
| CY2014Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
1422026000 | USD |
| CY2015Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
1350961000 | USD |
| CY2016Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
1187844000 | USD |
| CY2017Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
781273000 | USD |
| CY2015 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
-71065000 | USD |
| CY2016 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
-163117000 | USD |
| CY2017 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
-406571000 | USD |
| CY2016Q4 | us-gaap |
Cash Equivalents At Carrying Value
CashEquivalentsAtCarryingValue
|
1058265000 | USD |
| CY2017Q4 | us-gaap |
Cash Equivalents At Carrying Value
CashEquivalentsAtCarryingValue
|
724644000 | USD |
| CY2017 | us-gaap |
Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months
CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths
|
-59000000 | USD |
| CY2016Q4 | us-gaap |
Collateral Already Posted Aggregate Fair Value
CollateralAlreadyPostedAggregateFairValue
|
2000000 | USD |
| CY2017Q4 | us-gaap |
Collateral Already Posted Aggregate Fair Value
CollateralAlreadyPostedAggregateFairValue
|
1000000 | USD |
| CY2016Q4 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
USD | |
| CY2017Q4 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
USD | |
| CY2015 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
3.34 | |
| CY2016 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
3.42 | |
| CY2017 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
3.50 | |
| CY2016Q4 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
0.01 | |
| CY2017Q4 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
0.01 | |
| CY2016Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
500000000 | shares |
| CY2017Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
500000000 | shares |
| CY2016Q4 | us-gaap |
Common Stock Shares Issued
CommonStockSharesIssued
|
254752788 | shares |
| CY2017Q4 | us-gaap |
Common Stock Shares Issued
CommonStockSharesIssued
|
254752788 | shares |
| CY2016Q4 | us-gaap |
Common Stock Value
CommonStockValue
|
2548000 | USD |
| CY2017Q4 | us-gaap |
Common Stock Value
CommonStockValue
|
2548000 | USD |
| CY2015 | us-gaap |
Competitive Energy Revenue
CompetitiveEnergyRevenue
|
2061827000 | USD |
| CY2016 | us-gaap |
Competitive Energy Revenue
CompetitiveEnergyRevenue
|
1849638000 | USD |
| CY2017 | us-gaap |
Competitive Energy Revenue
CompetitiveEnergyRevenue
|
1656730000 | USD |
| CY2015 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
-125304000 | USD |
| CY2016 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
-627540000 | USD |
| CY2017 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
423052000 | USD |
| CY2015 | us-gaap |
Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
|
-105476000 | USD |
| CY2016 | us-gaap |
Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
|
-608425000 | USD |
| CY2017 | us-gaap |
Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
|
436793000 | USD |
| CY2016Q4 | us-gaap |
Construction Payable Current And Noncurrent
ConstructionPayableCurrentAndNoncurrent
|
253000000 | USD |
| CY2017Q4 | us-gaap |
Construction Payable Current And Noncurrent
ConstructionPayableCurrentAndNoncurrent
|
368000000 | USD |
| CY2015 | us-gaap |
Cost Of Purchased Power
CostOfPurchasedPower
|
1390805000 | USD |
| CY2016 | us-gaap |
Cost Of Purchased Power
CostOfPurchasedPower
|
1220527000 | USD |
| CY2017 | us-gaap |
Cost Of Purchased Power
CostOfPurchasedPower
|
1427950000 | USD |
| CY2015 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
77166000 | USD |
| CY2017 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
15478000 | USD |
| CY2015 | us-gaap |
Current Foreign Tax Expense Benefit
CurrentForeignTaxExpenseBenefit
|
97000 | USD |
| CY2016Q4 | us-gaap |
Customer Deposits Current
CustomerDepositsCurrent
|
403311000 | USD |
| CY2017Q4 | us-gaap |
Customer Deposits Current
CustomerDepositsCurrent
|
401330000 | USD |
| CY2016Q4 | us-gaap |
Debt Instrument Unamortized Discount Premium Net
DebtInstrumentUnamortizedDiscountPremiumNet
|
-19397000 | USD |
| CY2016 | us-gaap |
Current Foreign Tax Expense Benefit
CurrentForeignTaxExpenseBenefit
|
68000 | USD |
| CY2017 | us-gaap |
Current Foreign Tax Expense Benefit
CurrentForeignTaxExpenseBenefit
|
0 | USD |
| CY2016 | us-gaap |
Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
|
30357000 | USD |
| CY2017 | us-gaap |
Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
|
45073000 | USD |
| CY2015 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
157829000 | USD |
| CY2016 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
-14960000 | USD |
| CY2017Q4 | us-gaap |
Debt Instrument Unamortized Discount Premium Net
DebtInstrumentUnamortizedDiscountPremiumNet
|
-13911000 | USD |
| CY2016Q4 | us-gaap |
Decommissioning Fund Investments
DecommissioningFundInvestments
|
5723897000 | USD |
| CY2017Q4 | us-gaap |
Decommissioning Fund Investments
DecommissioningFundInvestments
|
7211993000 | USD |
| CY2016Q4 | us-gaap |
Deferred Fuel Cost
DeferredFuelCost
|
108465000 | USD |
| CY2017Q4 | us-gaap |
Deferred Fuel Cost
DeferredFuelCost
|
95746000 | USD |
| CY2015 | us-gaap |
Deferred Income Taxes And Tax Credits
DeferredIncomeTaxesAndTaxCredits
|
-820350000 | USD |
| CY2016 | us-gaap |
Deferred Income Taxes And Tax Credits
DeferredIncomeTaxesAndTaxCredits
|
-836257000 | USD |
| CY2017 | us-gaap |
Deferred Income Taxes And Tax Credits
DeferredIncomeTaxesAndTaxCredits
|
529053000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Assets Capital Loss Carryforwards
DeferredTaxAssetsCapitalLossCarryforwards
|
18470000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Capital Loss Carryforwards
DeferredTaxAssetsCapitalLossCarryforwards
|
16738000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Assets Deferred Gain On Sale Leaseback Transaction
DeferredTaxAssetsDeferredGainOnSaleLeasebackTransaction
|
135866000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Deferred Gain On Sale Leaseback Transaction
DeferredTaxAssetsDeferredGainOnSaleLeasebackTransaction
|
122397000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Assets Net
DeferredTaxAssetsNet
|
3017424000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Net
DeferredTaxAssetsNet
|
2934190000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Assets Net Noncurrent
DeferredTaxAssetsNetNoncurrent
|
117885000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Net Noncurrent
DeferredTaxAssetsNetNoncurrent
|
178204000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards
DeferredTaxAssetsOperatingLossCarryforwards
|
334025000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards
DeferredTaxAssetsOperatingLossCarryforwards
|
467255000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Assets Other
DeferredTaxAssetsOther
|
59079000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Other
DeferredTaxAssetsOther
|
54058000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Assets Regulatory Assets And Liabilities
DeferredTaxAssetsRegulatoryAssetsAndLiabilities
|
255272000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Regulatory Assets And Liabilities
DeferredTaxAssetsRegulatoryAssetsAndLiabilities
|
841370000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Assets Tax Credit Carryforwards
DeferredTaxAssetsTaxCreditCarryforwards
|
92375000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Tax Credit Carryforwards
DeferredTaxAssetsTaxCreditCarryforwards
|
59285000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions
|
539456000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions
|
343817000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Contingencies
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsContingencies
|
188390000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Contingencies
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsContingencies
|
126391000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
104277000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
137283000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
9403125000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
6265942000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Liabilities Noncurrent
DeferredTaxLiabilitiesNoncurrent
|
7495290000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Liabilities Noncurrent
DeferredTaxLiabilitiesNoncurrent
|
4466503000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Liabilities Other
DeferredTaxLiabilitiesOther
|
251719000 | USD |
| CY2017 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.561 | |
| CY2018Q1 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.21 | |
| CY2018Q1 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.21 | |
| CY2017Q4 | us-gaap |
Deferred Tax Liabilities Other
DeferredTaxLiabilitiesOther
|
249327000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
6362905000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
3963798000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Liabilities Regulatory Assets And Liabilities
DeferredTaxLiabilitiesRegulatoryAssetsAndLiabilities
|
584572000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Liabilities Regulatory Assets And Liabilities
DeferredTaxLiabilitiesRegulatoryAssetsAndLiabilities
|
0 | USD |
| CY2017 | us-gaap |
Defined Benefit Plan Effect Of One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation1
DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1
|
139648000 | USD |
| CY2017 | us-gaap |
Defined Benefit Plan Effect Of One Percentage Point Decrease On Service And Interest Cost Components1
DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents1
|
8385000 | USD |
| CY2017 | us-gaap |
Defined Benefit Plan Effect Of One Percentage Point Increase On Accumulated Postretirement Benefit Obligation
DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation
|
166814000 | USD |
| CY2017 | us-gaap |
Defined Benefit Plan Effect Of One Percentage Point Increase On Service And Interest Cost Components
DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents
|
10221000 | USD |
| CY2015 | us-gaap |
Depreciation Amortization And Accretion Net
DepreciationAmortizationAndAccretionNet
|
2117236000 | USD |
| CY2016 | us-gaap |
Depreciation Amortization And Accretion Net
DepreciationAmortizationAndAccretionNet
|
2123291000 | USD |
| CY2017 | us-gaap |
Depreciation Amortization And Accretion Net
DepreciationAmortizationAndAccretionNet
|
2078578000 | USD |
| CY2015 | us-gaap |
Depreciation Nonproduction
DepreciationNonproduction
|
1337276000 | USD |
| CY2016 | us-gaap |
Depreciation Nonproduction
DepreciationNonproduction
|
1347187000 | USD |
| CY2017 | us-gaap |
Depreciation Nonproduction
DepreciationNonproduction
|
1389978000 | USD |
| CY2017Q4 | us-gaap |
Derivative Collateral Obligation To Return Cash
DerivativeCollateralObligationToReturnCash
|
4000000 | USD |
| CY2015 | us-gaap |
Dividends Common Stock Cash
DividendsCommonStockCash
|
598897000 | USD |
| CY2016 | us-gaap |
Dividends Common Stock Cash
DividendsCommonStockCash
|
611835000 | USD |
| CY2017 | us-gaap |
Dividends Common Stock Cash
DividendsCommonStockCash
|
628885000 | USD |
| CY2015 | us-gaap |
Dividends Preferred Stock Cash
DividendsPreferredStockCash
|
14900000 | USD |
| CY2016 | us-gaap |
Dividends Preferred Stock Cash
DividendsPreferredStockCash
|
19100000 | USD |
| CY2017 | us-gaap |
Dividends Preferred Stock Cash
DividendsPreferredStockCash
|
13700000 | USD |
| CY2015 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-0.99 | |
| CY2016Q1 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
1.29 | |
| CY2016Q2 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
3.17 | |
| CY2016Q3 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
2.17 | |
| CY2016Q4 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-9.89 | |
| CY2016 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-3.26 | |
| CY2017Q1 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.46 | |
| CY2017Q2 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
2.28 | |
| CY2017Q3 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
2.22 | |
| CY2017Q4 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-2.67 | |
| CY2017 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
2.29 | |
| CY2015 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-0.99 | |
| CY2016Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
1.28 | |
| CY2016Q2 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
3.16 | |
| CY2016Q3 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
2.16 | |
| CY2016Q4 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-9.86 | |
| CY2016 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-3.26 | |
| CY2017Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.46 | |
| CY2017Q2 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
2.27 | |
| CY2017Q3 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
2.21 | |
| CY2017Q4 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-2.66 | |
| CY2017 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
2.28 | |
| CY2015 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.804 | |
| CY2016 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.591 | |
| CY2015 | us-gaap |
Gain Loss On Sale Of Business
GainLossOnSaleOfBusiness
|
154037000 | USD |
| CY2016 | us-gaap |
Gain Loss On Sale Of Business
GainLossOnSaleOfBusiness
|
0 | USD |
| CY2017 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.35 | |
| CY2017 | us-gaap |
Electric Utility Revenue
ElectricUtilityRevenue
|
9278895000 | USD |
| CY2016 | us-gaap |
Gain Loss On Investments
GainLossOnInvestments
|
0 | USD |
| CY2017 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.35 | |
| CY2017 | us-gaap |
Gain Loss On Investments
GainLossOnInvestments
|
16270000 | USD |
| CY2015 | us-gaap |
Gain Loss On Price Risk Cash Flow Hedge Ineffectiveness
GainLossOnPriceRiskCashFlowHedgeIneffectiveness
|
150000 | USD |
| CY2016 | us-gaap |
Gain Loss On Price Risk Cash Flow Hedge Ineffectiveness
GainLossOnPriceRiskCashFlowHedgeIneffectiveness
|
-356000 | USD |
| CY2017 | us-gaap |
Gain Loss On Price Risk Cash Flow Hedge Ineffectiveness
GainLossOnPriceRiskCashFlowHedgeIneffectiveness
|
-3000000 | USD |
| CY2017 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
-13375000 | USD |
| CY2016Q4 | us-gaap |
Equity Method Investments
EquityMethodInvestments
|
198000 | USD |
| CY2017Q4 | us-gaap |
Equity Method Investments
EquityMethodInvestments
|
198000 | USD |
| CY2015 | us-gaap |
Gain Loss On Investments
GainLossOnInvestments
|
154037000 | USD |
| CY2017 | us-gaap |
Gain Loss On Sale Of Business
GainLossOnSaleOfBusiness
|
16270000 | USD |
| CY2015 | us-gaap |
Gas Domestic Regulated Revenue
GasDomesticRegulatedRevenue
|
142746000 | USD |
| CY2016 | us-gaap |
Gas Domestic Regulated Revenue
GasDomesticRegulatedRevenue
|
129348000 | USD |
| CY2017 | us-gaap |
Gas Domestic Regulated Revenue
GasDomesticRegulatedRevenue
|
138856000 | USD |
| CY2016Q4 | us-gaap |
Goodwill
Goodwill
|
377172000 | USD |
| CY2017Q4 | us-gaap |
Goodwill
Goodwill
|
377172000 | USD |
| CY2015 | us-gaap |
Impairment Of Long Lived Assets Held For Use
ImpairmentOfLongLivedAssetsHeldForUse
|
2104906000 | USD |
| CY2016 | us-gaap |
Impairment Of Long Lived Assets Held For Use
ImpairmentOfLongLivedAssetsHeldForUse
|
2835637000 | USD |
| CY2017 | us-gaap |
Impairment Of Long Lived Assets Held For Use
ImpairmentOfLongLivedAssetsHeldForUse
|
357251000 | USD |
| CY2015 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
|
-799661000 | USD |
| CY2016 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
|
-1381762000 | USD |
| CY2017 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
|
967923000 | USD |
| CY2015 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
-642927000 | USD |
| CY2016 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
-817259000 | USD |
| CY2017 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
542570000 | USD |
| CY2015 | us-gaap |
Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance
IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
0 | USD |
| CY2016 | us-gaap |
Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance
IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
11411000 | USD |
| CY2017 | us-gaap |
Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance
IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
0 | USD |
| CY2015 | us-gaap |
Income Tax Reconciliation Change In Enacted Tax Rate
IncomeTaxReconciliationChangeInEnactedTaxRate
|
0 | USD |
| CY2016 | us-gaap |
Income Tax Reconciliation Change In Enacted Tax Rate
IncomeTaxReconciliationChangeInEnactedTaxRate
|
0 | USD |
| CY2017 | us-gaap |
Income Tax Reconciliation Change In Enacted Tax Rate
IncomeTaxReconciliationChangeInEnactedTaxRate
|
560410000 | USD |
| CY2015 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
-279881000 | USD |
| CY2016 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
-483617000 | USD |
| CY2017 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
338773000 | USD |
| CY2015 | us-gaap |
Income Tax Reconciliation Other Reconciling Items
IncomeTaxReconciliationOtherReconcilingItems
|
2458000 | USD |
| CY2016 | us-gaap |
Income Tax Reconciliation Other Reconciling Items
IncomeTaxReconciliationOtherReconcilingItems
|
2984000 | USD |
| CY2017 | us-gaap |
Income Tax Reconciliation Other Reconciling Items
IncomeTaxReconciliationOtherReconcilingItems
|
3007000 | USD |
| CY2015 | us-gaap |
Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
|
29944000 | USD |
| CY2016 | us-gaap |
Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
|
40581000 | USD |
| CY2017 | us-gaap |
Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
|
44179000 | USD |
| CY2015 | us-gaap |
Income Tax Reconciliation Tax Credits Investment
IncomeTaxReconciliationTaxCreditsInvestment
|
13220000 | USD |
| CY2016 | us-gaap |
Income Tax Reconciliation Tax Credits Investment
IncomeTaxReconciliationTaxCreditsInvestment
|
7151000 | USD |
| CY2017 | us-gaap |
Income Tax Reconciliation Tax Credits Investment
IncomeTaxReconciliationTaxCreditsInvestment
|
7513000 | USD |
| CY2015 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
103589000 | USD |
| CY2016 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
95317000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
-135211000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
174421000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
101802000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Accrued Income Taxes Payable
IncreaseDecreaseInAccruedIncomeTaxesPayable
|
81969000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Accrued Income Taxes Payable
IncreaseDecreaseInAccruedIncomeTaxesPayable
|
-28963000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Accrued Income Taxes Payable
IncreaseDecreaseInAccruedIncomeTaxesPayable
|
33853000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Deferred Fuel Costs
IncreaseDecreaseInDeferredFuelCosts
|
-298725000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Deferred Fuel Costs
IncreaseDecreaseInDeferredFuelCosts
|
241896000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Deferred Fuel Costs
IncreaseDecreaseInDeferredFuelCosts
|
-56290000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Fuel Inventories
IncreaseDecreaseInFuelInventories
|
12376000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Fuel Inventories
IncreaseDecreaseInFuelInventories
|
-38210000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Fuel Inventories
IncreaseDecreaseInFuelInventories
|
3043000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Interest Payable Net
IncreaseDecreaseInInterestPayableNet
|
-11445000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Interest Payable Net
IncreaseDecreaseInInterestPayableNet
|
-7335000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Interest Payable Net
IncreaseDecreaseInInterestPayableNet
|
742000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
|
113701000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
|
-31197000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
|
4331000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Other Regulatory Assets
IncreaseDecreaseInOtherRegulatoryAssets
|
-262317000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Other Regulatory Assets
IncreaseDecreaseInOtherRegulatoryAssets
|
48469000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Other Regulatory Assets
IncreaseDecreaseInOtherRegulatoryAssets
|
-595504000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Pension And Postretirement Obligations
IncreaseDecreaseInPensionAndPostretirementObligations
|
-446418000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Pension And Postretirement Obligations
IncreaseDecreaseInPensionAndPostretirementObligations
|
-136919000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Pension And Postretirement Obligations
IncreaseDecreaseInPensionAndPostretirementObligations
|
-130686000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Receivables
IncreaseDecreaseInReceivables
|
-38152000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Receivables
IncreaseDecreaseInReceivables
|
96975000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Receivables
IncreaseDecreaseInReceivables
|
97637000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Regulatory Liabilities
IncreaseDecreaseInRegulatoryLiabilities
|
61241000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Regulatory Liabilities
IncreaseDecreaseInRegulatoryLiabilities
|
158031000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Regulatory Liabilities
IncreaseDecreaseInRegulatoryLiabilities
|
2915795000 | USD |
| CY2015 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
0 | shares |
| CY2016 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
0 | shares |
| CY2017 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
200000 | shares |
| CY2015 | us-gaap |
Interest Expense
InterestExpense
|
643469000 | USD |
| CY2016 | us-gaap |
Interest Expense
InterestExpense
|
666370000 | USD |
| CY2017 | us-gaap |
Interest Expense
InterestExpense
|
662343000 | USD |
| CY2015 | us-gaap |
Interest Expense Debt
InterestExpenseDebt
|
670096000 | USD |
| CY2016 | us-gaap |
Interest Expense Debt
InterestExpenseDebt
|
700545000 | USD |
| CY2017 | us-gaap |
Interest Expense Debt
InterestExpenseDebt
|
707212000 | USD |
| CY2015 | us-gaap |
Interest Paid Capitalized
InterestPaidCapitalized
|
663630000 | USD |
| CY2016 | us-gaap |
Interest Paid Capitalized
InterestPaidCapitalized
|
746779000 | USD |
| CY2017 | us-gaap |
Interest Paid Capitalized
InterestPaidCapitalized
|
678371000 | USD |
| CY2016Q4 | us-gaap |
Interest Payable Current
InterestPayableCurrent
|
187229000 | USD |
| CY2017Q4 | us-gaap |
Interest Payable Current
InterestPayableCurrent
|
187972000 | USD |
| CY2015 | us-gaap |
Investment Income Net
InvestmentIncomeNet
|
187062000 | USD |
| CY2016 | us-gaap |
Investment Income Net
InvestmentIncomeNet
|
145127000 | USD |
| CY2017 | us-gaap |
Investment Income Net
InvestmentIncomeNet
|
288197000 | USD |
| CY2017Q4 | us-gaap |
Liabilities Fair Value Disclosure
LiabilitiesFairValueDisclosure
|
76000000 | USD |
| CY2016Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
45904434000 | USD |
| CY2017Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
46707149000 | USD |
| CY2016Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
3200096000 | USD |
| CY2017Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
5036207000 | USD |
| CY2016Q4 | us-gaap |
Liabilities Noncurrent
LiabilitiesNoncurrent
|
34419344000 | USD |
| CY2017Q4 | us-gaap |
Liabilities Noncurrent
LiabilitiesNoncurrent
|
33480624000 | USD |
| CY2017Q4 | us-gaap |
Line Of Credit
LineOfCredit
|
210000000 | USD |
| CY2017 | us-gaap |
Line Of Credit Facility Commitment Fee Percentage
LineOfCreditFacilityCommitmentFeePercentage
|
0.00225 | |
| CY2017Q4 | us-gaap |
Line Of Credit Facility Maximum Borrowing Capacity
LineOfCreditFacilityMaximumBorrowingCapacity
|
3500000000 | USD |
| CY2017Q4 | us-gaap |
Line Of Credit Facility Maximum Borrowing Capacity
LineOfCreditFacilityMaximumBorrowingCapacity
|
3500000000 | USD |
| CY2017Q4 | us-gaap |
Line Of Credit Facility Remaining Borrowing Capacity
LineOfCreditFacilityRemainingBorrowingCapacity
|
3284000000 | USD |
| CY2016Q4 | us-gaap |
Long Term Debt
LongTermDebt
|
14832555000 | USD |
| CY2017Q4 | us-gaap |
Long Term Debt
LongTermDebt
|
15075266000 | USD |
| CY2016Q4 | us-gaap |
Long Term Debt Current
LongTermDebtCurrent
|
364900000 | USD |
| CY2017Q4 | us-gaap |
Long Term Debt Current
LongTermDebtCurrent
|
760007000 | USD |
| CY2016Q4 | us-gaap |
Long Term Debt Fair Value
LongTermDebtFairValue
|
14815535000 | USD |
| CY2017Q4 | us-gaap |
Long Term Debt Fair Value
LongTermDebtFairValue
|
15367453000 | USD |
| CY2017Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Next Twelve Months
LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
|
760000000 | USD |
| CY2017Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
|
1304431000 | USD |
| CY2017Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Four
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
|
960764000 | USD |
| CY2017Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Three
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
|
898500000 | USD |
| CY2017Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Two
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
|
857679000 | USD |
| CY2016Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
14467655000 | USD |
| CY2017Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
14315259000 | USD |
| CY2016Q4 | us-gaap |
Long Term Investments
LongTermInvestments
|
6427400000 | USD |
| CY2017Q4 | us-gaap |
Long Term Investments
LongTermInvestments
|
7915033000 | USD |
| CY2016Q4 | us-gaap |
Long Term Transition Bond
LongTermTransitionBond
|
661175000 | USD |
| CY2017Q4 | us-gaap |
Long Term Transition Bond
LongTermTransitionBond
|
544921000 | USD |
| CY2017 | us-gaap |
Loss Contingency Number Of Plaintiffs
LossContingencyNumberOfPlaintiffs
|
500 | plaintiff |
| CY2017Q4 | us-gaap |
Loss Contingency Pending Claims Number
LossContingencyPendingClaimsNumber
|
200 | claim |
| CY2015 | us-gaap |
Minority Interest Decrease From Distributions To Noncontrolling Interest Holders
MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
|
19828000 | USD |
| CY2016 | us-gaap |
Minority Interest Decrease From Distributions To Noncontrolling Interest Holders
MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
|
19115000 | USD |
| CY2017 | us-gaap |
Minority Interest Decrease From Distributions To Noncontrolling Interest Holders
MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
|
13741000 | USD |
| CY2015 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
-753467000 | USD |
| CY2016 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
688232000 | USD |
| CY2017 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
810978000 | USD |
| CY2015 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-2608782000 | USD |
| CY2016 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-3850048000 | USD |
| CY2017 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-3841049000 | USD |
| CY2015 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
3291184000 | USD |
| CY2016 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
2998699000 | USD |
| CY2017 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
2623500000 | USD |
| CY2015 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-176562000 | USD |
| CY2016Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
229966000 | USD |
| CY2016Q2 | us-gaap |
Net Income Loss
NetIncomeLoss
|
567314000 | USD |
| CY2016Q3 | us-gaap |
Net Income Loss
NetIncomeLoss
|
388170000 | USD |
| CY2016Q4 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-1769068000 | USD |
| CY2016 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-583618000 | USD |
| CY2017Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
82605000 | USD |
| CY2017Q2 | us-gaap |
Net Income Loss
NetIncomeLoss
|
409922000 | USD |
| CY2017Q3 | us-gaap |
Net Income Loss
NetIncomeLoss
|
398198000 | USD |
| CY2017Q4 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-479113000 | USD |
| CY2017 | us-gaap |
Net Income Loss
NetIncomeLoss
|
411612000 | USD |
| CY2015 | us-gaap |
Noncontrolling Interest In Net Income Loss Preferred Unit Holders Redeemable
NoncontrollingInterestInNetIncomeLossPreferredUnitHoldersRedeemable
|
19828000 | USD |
| CY2016 | us-gaap |
Noncontrolling Interest In Net Income Loss Preferred Unit Holders Redeemable
NoncontrollingInterestInNetIncomeLossPreferredUnitHoldersRedeemable
|
19115000 | USD |
| CY2017 | us-gaap |
Noncontrolling Interest In Net Income Loss Preferred Unit Holders Redeemable
NoncontrollingInterestInNetIncomeLossPreferredUnitHoldersRedeemable
|
13741000 | USD |
| CY2015 | us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
142973000 | USD |
| CY2016 | us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
171073000 | USD |
| CY2017 | us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
370584000 | USD |
| CY2016Q4 | us-gaap |
Nuclear Fuel Net Of Amortization
NuclearFuelNetOfAmortization
|
1037899000 | USD |
| CY2017Q4 | us-gaap |
Nuclear Fuel Net Of Amortization
NuclearFuelNetOfAmortization
|
923200000 | USD |
| CY2015 | us-gaap |
Operating Expenses
OperatingExpenses
|
11966453000 | USD |
| CY2016 | us-gaap |
Operating Expenses
OperatingExpenses
|
11732110000 | USD |
| CY2017 | us-gaap |
Operating Expenses
OperatingExpenses
|
9831069000 | USD |
| CY2015 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
-299165000 | USD |
| CY2016Q1 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
498218000 | USD |
| CY2016Q2 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
442258000 | USD |
| CY2016Q3 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
772060000 | USD |
| CY2016Q4 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
-2599001000 | USD |
| CY2016 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
-886465000 | USD |
| CY2017Q1 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
174803000 | USD |
| CY2017Q2 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
143509000 | USD |
| CY2017Q3 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
729469000 | USD |
| CY2017Q4 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
211901000 | USD |
| CY2017 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
1259682000 | USD |
| CY2017Q4 | us-gaap |
Operating Leases Future Minimum Payments Due
OperatingLeasesFutureMinimumPaymentsDue
|
429086000 | USD |
| CY2017Q4 | us-gaap |
Operating Leases Future Minimum Payments Due Current
OperatingLeasesFutureMinimumPaymentsDueCurrent
|
80368000 | USD |
| CY2017Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Five Years
OperatingLeasesFutureMinimumPaymentsDueInFiveYears
|
43760000 | USD |
| CY2017Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Four Years
OperatingLeasesFutureMinimumPaymentsDueInFourYears
|
58507000 | USD |
| CY2017Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Three Years
OperatingLeasesFutureMinimumPaymentsDueInThreeYears
|
67385000 | USD |
| CY2017Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Two Years
OperatingLeasesFutureMinimumPaymentsDueInTwoYears
|
82516000 | USD |
| CY2017Q4 | us-gaap |
Operating Leases Future Minimum Payments Due Thereafter
OperatingLeasesFutureMinimumPaymentsDueThereafter
|
96550000 | USD |
| CY2015 | us-gaap |
Operating Leases Rent Expense Net
OperatingLeasesRentExpenseNet
|
63900000 | USD |
| CY2016 | us-gaap |
Operating Leases Rent Expense Net
OperatingLeasesRentExpenseNet
|
44400000 | USD |
| CY2017 | us-gaap |
Operating Leases Rent Expense Net
OperatingLeasesRentExpenseNet
|
53100000 | USD |
| CY2016Q4 | us-gaap |
Operating Loss Carryforwards Valuation Allowance
OperatingLossCarryforwardsValuationAllowance
|
62000000 | USD |
| CY2017Q4 | us-gaap |
Operating Loss Carryforwards Valuation Allowance
OperatingLossCarryforwardsValuationAllowance
|
106000000 | USD |
| CY2016Q4 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
193448000 | USD |
| CY2017Q4 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
156333000 | USD |
| CY2016Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
1606009000 | USD |
| CY2017Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
112062000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax
OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax
|
-641000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax
OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax
|
-1280000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax
OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax
|
-748000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Available For Sale Securities Tax
OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax
|
-45904000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Available For Sale Securities Tax
OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax
|
57277000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Available For Sale Securities Tax
OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax
|
80069000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Before Reclassifications Net Of Tax
OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
|
127928000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Before Reclassifications Net Of Tax
OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
|
94924000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax
OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax
|
7852000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax
OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax
|
-101977000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax
OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax
|
-41470000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax
OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax
|
3752000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax
OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax
|
-55298000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax
OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax
|
-22570000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax
OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax
|
-345000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax
OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax
|
-689000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax
OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax
|
-403000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
51258000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
-43922000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
11440000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax
|
61576000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax
|
-3952000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax
|
-4057000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
|
-59138000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
|
62177000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
|
115311000 | USD |
| CY2016Q4 | us-gaap |
Other Inventory Supplies
OtherInventorySupplies
|
698523000 | USD |
| CY2017Q4 | us-gaap |
Other Inventory Supplies
OtherInventorySupplies
|
723222000 | USD |
| CY2016Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
180836000 | USD |
| CY2017Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
221771000 | USD |
| CY2016Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
1121619000 | USD |
| CY2017Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
393748000 | USD |
| CY2016Q4 | us-gaap |
Other Long Term Debt
OtherLongTermDebt
|
13204000 | USD |
| CY2017Q4 | us-gaap |
Other Long Term Debt
OtherLongTermDebt
|
12830000 | USD |
| CY2016Q4 | us-gaap |
Other Long Term Investments
OtherLongTermInvestments
|
469664000 | USD |
| CY2017Q4 | us-gaap |
Other Long Term Investments
OtherLongTermInvestments
|
441862000 | USD |
| CY2015 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
-134344000 | USD |
| CY2016 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
421676000 | USD |
| CY2017 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
549977000 | USD |
| CY2015 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
-95997000 | USD |
| CY2016 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
-41617000 | USD |
| CY2017 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
-12701000 | USD |
| CY2016Q4 | us-gaap |
Other Receivables
OtherReceivables
|
158419000 | USD |
| CY2017Q4 | us-gaap |
Other Receivables
OtherReceivables
|
169377000 | USD |
| CY2015 | us-gaap |
Payments For Capital Improvements
PaymentsForCapitalImprovements
|
2500860000 | USD |
| CY2016 | us-gaap |
Payments For Capital Improvements
PaymentsForCapitalImprovements
|
2780222000 | USD |
| CY2017 | us-gaap |
Payments For Capital Improvements
PaymentsForCapitalImprovements
|
3607532000 | USD |
| CY2015 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
-571000 | USD |
| CY2016 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
-9055000 | USD |
| CY2017 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
-1078000 | USD |
| CY2015 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
99807000 | USD |
| CY2016 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
0 | USD |
| CY2017 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
0 | USD |
| CY2015 | us-gaap |
Payments For Repurchase Of Preferred Stock And Preference Stock
PaymentsForRepurchaseOfPreferredStockAndPreferenceStock
|
94285000 | USD |
| CY2016 | us-gaap |
Payments For Repurchase Of Preferred Stock And Preference Stock
PaymentsForRepurchaseOfPreferredStockAndPreferenceStock
|
115283000 | USD |
| CY2017 | us-gaap |
Payments For Repurchase Of Preferred Stock And Preference Stock
PaymentsForRepurchaseOfPreferredStockAndPreferenceStock
|
20599000 | USD |
| CY2015 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
598897000 | USD |
| CY2016 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
611835000 | USD |
| CY2017 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
628885000 | USD |
| CY2015 | us-gaap |
Payments Of Dividends Preferred Stock And Preference Stock
PaymentsOfDividendsPreferredStockAndPreferenceStock
|
19758000 | USD |
| CY2016 | us-gaap |
Payments Of Dividends Preferred Stock And Preference Stock
PaymentsOfDividendsPreferredStockAndPreferenceStock
|
20789000 | USD |
| CY2017 | us-gaap |
Payments Of Dividends Preferred Stock And Preference Stock
PaymentsOfDividendsPreferredStockAndPreferenceStock
|
13940000 | USD |
| CY2015 | us-gaap |
Payments To Acquire Other Property Plant And Equipment
PaymentsToAcquireOtherPropertyPlantAndEquipment
|
0 | USD |
| CY2016 | us-gaap |
Payments To Acquire Other Property Plant And Equipment
PaymentsToAcquireOtherPropertyPlantAndEquipment
|
949329000 | USD |
| CY2017 | us-gaap |
Payments To Acquire Other Property Plant And Equipment
PaymentsToAcquireOtherPropertyPlantAndEquipment
|
16762000 | USD |
| CY2015 | us-gaap |
Payments To Acquire Restricted Investments
PaymentsToAcquireRestrictedInvestments
|
69163000 | USD |
| CY2016 | us-gaap |
Payments To Acquire Restricted Investments
PaymentsToAcquireRestrictedInvestments
|
1544000 | USD |
| CY2017 | us-gaap |
Payments To Acquire Restricted Investments
PaymentsToAcquireRestrictedInvestments
|
2878000 | USD |
| CY2015 | us-gaap |
Payments To Invest In Decommissioning Fund
PaymentsToInvestInDecommissioningFund
|
2550958000 | USD |
| CY2016 | us-gaap |
Payments To Invest In Decommissioning Fund
PaymentsToInvestInDecommissioningFund
|
2484627000 | USD |
| CY2017 | us-gaap |
Payments To Invest In Decommissioning Fund
PaymentsToInvestInDecommissioningFund
|
3260674000 | USD |
| CY2016Q4 | us-gaap |
Pension And Other Postretirement Defined Benefit Plans Current Liabilities
PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities
|
76942000 | USD |
| CY2017Q4 | us-gaap |
Pension And Other Postretirement Defined Benefit Plans Current Liabilities
PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities
|
71612000 | USD |
| CY2016Q4 | us-gaap |
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
|
3036010000 | USD |
| CY2017Q4 | us-gaap |
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
|
2910654000 | USD |
| CY2017Q4 | us-gaap |
Prescription Drug Subsidy Receipts After Year Five
PrescriptionDrugSubsidyReceiptsAfterYearFive
|
8109000 | USD |
| CY2017Q4 | us-gaap |
Prescription Drug Subsidy Receipts Next Twelve Months
PrescriptionDrugSubsidyReceiptsNextTwelveMonths
|
745000 | USD |
| CY2017Q4 | us-gaap |
Prescription Drug Subsidy Receipts Year Five1
PrescriptionDrugSubsidyReceiptsYearFive1
|
1195000 | USD |
| CY2017Q4 | us-gaap |
Prescription Drug Subsidy Receipts Year Four1
PrescriptionDrugSubsidyReceiptsYearFour1
|
1071000 | USD |
| CY2017Q4 | us-gaap |
Prescription Drug Subsidy Receipts Year Three1
PrescriptionDrugSubsidyReceiptsYearThree1
|
956000 | USD |
| CY2017Q4 | us-gaap |
Prescription Drug Subsidy Receipts Year Two1
PrescriptionDrugSubsidyReceiptsYearTwo1
|
842000 | USD |
| CY2015 | us-gaap |
Proceeds From Decommissioning Fund
ProceedsFromDecommissioningFund
|
2492176000 | USD |
| CY2016 | us-gaap |
Proceeds From Decommissioning Fund
ProceedsFromDecommissioningFund
|
2408920000 | USD |
| CY2017 | us-gaap |
Proceeds From Decommissioning Fund
ProceedsFromDecommissioningFund
|
3162747000 | USD |
| CY2015 | us-gaap |
Proceeds From Dividends Received
ProceedsFromDividendsReceived
|
615000000 | USD |
| CY2016 | us-gaap |
Proceeds From Dividends Received
ProceedsFromDividendsReceived
|
165000000 | USD |
| CY2017 | us-gaap |
Proceeds From Dividends Received
ProceedsFromDividendsReceived
|
201000000 | USD |
| CY2015 | us-gaap |
Proceeds From Insurance Settlement Investing Activities
ProceedsFromInsuranceSettlementInvestingActivities
|
24399000 | USD |
| CY2016 | us-gaap |
Proceeds From Insurance Settlement Investing Activities
ProceedsFromInsuranceSettlementInvestingActivities
|
20968000 | USD |
| CY2017 | us-gaap |
Proceeds From Insurance Settlement Investing Activities
ProceedsFromInsuranceSettlementInvestingActivities
|
26157000 | USD |
| CY2015 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
3502189000 | USD |
| CY2016 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
6800558000 | USD |
| CY2017 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
1809390000 | USD |
| CY2015 | us-gaap |
Proceeds From Issuance Of Preferred Limited Partners Units
ProceedsFromIssuanceOfPreferredLimitedPartnersUnits
|
107426000 | USD |
| CY2016 | us-gaap |
Proceeds From Issuance Of Preferred Limited Partners Units
ProceedsFromIssuanceOfPreferredLimitedPartnersUnits
|
0 | USD |
| CY2017 | us-gaap |
Proceeds From Issuance Of Preferred Limited Partners Units
ProceedsFromIssuanceOfPreferredLimitedPartnersUnits
|
14399000 | USD |
| CY2015 | us-gaap |
Proceeds From Issuance Or Sale Of Equity
ProceedsFromIssuanceOrSaleOfEquity
|
24366000 | USD |
| CY2016 | us-gaap |
Proceeds From Issuance Or Sale Of Equity
ProceedsFromIssuanceOrSaleOfEquity
|
33114000 | USD |
| CY2017 | us-gaap |
Proceeds From Issuance Or Sale Of Equity
ProceedsFromIssuanceOrSaleOfEquity
|
80729000 | USD |
| CY2015 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-9136000 | USD |
| CY2016 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-6872000 | USD |
| CY2017 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-7731000 | USD |
| CY2015 | us-gaap |
Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
|
2492000000 | USD |
| CY2016 | us-gaap |
Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
|
2409000000 | USD |
| CY2017 | us-gaap |
Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
|
3163000000 | USD |
| CY2015 | us-gaap |
Proceeds From Sale Of Productive Assets
ProceedsFromSaleOfProductiveAssets
|
487406000 | USD |
| CY2016 | us-gaap |
Proceeds From Sale Of Productive Assets
ProceedsFromSaleOfProductiveAssets
|
0 | USD |
| CY2017 | us-gaap |
Proceeds From Sale Of Productive Assets
ProceedsFromSaleOfProductiveAssets
|
100000000 | USD |
| CY2015 | us-gaap |
Proceeds From Sale Of Restricted Investments
ProceedsFromSaleOfRestrictedInvestments
|
5916000 | USD |
| CY2016 | us-gaap |
Proceeds From Sale Of Restricted Investments
ProceedsFromSaleOfRestrictedInvestments
|
0 | USD |
| CY2017 | us-gaap |
Proceeds From Sale Of Restricted Investments
ProceedsFromSaleOfRestrictedInvestments
|
11323000 | USD |
| CY2015 | us-gaap |
Profit Loss
ProfitLoss
|
-156734000 | USD |
| CY2016Q1 | us-gaap |
Profit Loss
ProfitLoss
|
235242000 | USD |
| CY2016Q2 | us-gaap |
Profit Loss
ProfitLoss
|
572590000 | USD |
| CY2016Q3 | us-gaap |
Profit Loss
ProfitLoss
|
393204000 | USD |
| CY2016Q4 | us-gaap |
Profit Loss
ProfitLoss
|
-1765539000 | USD |
| CY2016 | us-gaap |
Profit Loss
ProfitLoss
|
-564503000 | USD |
| CY2017Q1 | us-gaap |
Profit Loss
ProfitLoss
|
86051000 | USD |
| CY2017Q2 | us-gaap |
Profit Loss
ProfitLoss
|
413368000 | USD |
| CY2017Q3 | us-gaap |
Profit Loss
ProfitLoss
|
401644000 | USD |
| CY2017Q4 | us-gaap |
Profit Loss
ProfitLoss
|
-475710000 | USD |
| CY2017 | us-gaap |
Profit Loss
ProfitLoss
|
425353000 | USD |
| CY2016Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
233641000 | USD |
| CY2017Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
260980000 | USD |
| CY2015 | us-gaap |
Provision For Other Losses
ProvisionForOtherLosses
|
42566000 | USD |
| CY2016 | us-gaap |
Provision For Other Losses
ProvisionForOtherLosses
|
20905000 | USD |
| CY2017 | us-gaap |
Provision For Other Losses
ProvisionForOtherLosses
|
-3279000 | USD |
| CY2015 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
|
51908000 | USD |
| CY2016 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
|
67563000 | USD |
| CY2017 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
|
95088000 | USD |
| CY2015 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Capitalized Interest
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest
|
26627000 | USD |
| CY2016 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Capitalized Interest
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest
|
34175000 | USD |
| CY2017 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Capitalized Interest
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest
|
44869000 | USD |
| CY2016Q4 | us-gaap |
Public Utilities Property Plant And Equipment Accumulated Depreciation
PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation
|
20718639000 | USD |
| CY2017Q4 | us-gaap |
Public Utilities Property Plant And Equipment Accumulated Depreciation
PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation
|
21600424000 | USD |
| CY2016Q4 | us-gaap |
Public Utilities Property Plant And Equipment Construction Work In Progress
PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress
|
1378180000 | USD |
| CY2017Q4 | us-gaap |
Public Utilities Property Plant And Equipment Construction Work In Progress
PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress
|
1980508000 | USD |
| CY2016Q4 | us-gaap |
Public Utilities Property Plant And Equipment Distribution
PublicUtilitiesPropertyPlantAndEquipmentDistribution
|
7648000000 | USD |
| CY2017Q4 | us-gaap |
Public Utilities Property Plant And Equipment Distribution
PublicUtilitiesPropertyPlantAndEquipmentDistribution
|
8000000000 | USD |
| CY2016Q4 | us-gaap |
Public Utilities Property Plant And Equipment Net
PublicUtilitiesPropertyPlantAndEquipmentNet
|
27921407000 | USD |
| CY2017Q4 | us-gaap |
Public Utilities Property Plant And Equipment Net
PublicUtilitiesPropertyPlantAndEquipmentNet
|
29664360000 | USD |
| CY2016Q4 | us-gaap |
Public Utilities Property Plant And Equipment Other Property Plant And Equipment
PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment
|
45191216000 | USD |
| CY2017Q4 | us-gaap |
Public Utilities Property Plant And Equipment Other Property Plant And Equipment
PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment
|
47287370000 | USD |
| CY2016Q4 | us-gaap |
Public Utilities Property Plant And Equipment Plant In Service
PublicUtilitiesPropertyPlantAndEquipmentPlantInService
|
48640046000 | USD |
| CY2017Q4 | us-gaap |
Public Utilities Property Plant And Equipment Plant In Service
PublicUtilitiesPropertyPlantAndEquipmentPlantInService
|
51264784000 | USD |
| CY2016Q4 | us-gaap |
Public Utilities Property Plant And Equipment Transmission
PublicUtilitiesPropertyPlantAndEquipmentTransmission
|
5226000000 | USD |
| CY2017Q4 | us-gaap |
Public Utilities Property Plant And Equipment Transmission
PublicUtilitiesPropertyPlantAndEquipmentTransmission
|
5844000000 | USD |
| CY2016 | us-gaap |
Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax
ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
|
171850000 | USD |
| CY2017 | us-gaap |
Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax
ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
|
83484000 | USD |
| CY2016Q4 | us-gaap |
Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
|
4769913000 | USD |
| CY2017Q4 | us-gaap |
Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
|
4935689000 | USD |
| CY2016Q4 | us-gaap |
Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
|
1572929000 | USD |
| CY2017Q4 | us-gaap |
Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
|
1588520000 | USD |
| CY2015Q4 | us-gaap |
Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
|
107000000 | USD |
| CY2015 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
3461518000 | USD |
| CY2016 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
5311324000 | USD |
| CY2017 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
1585681000 | USD |
| CY2016Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
8195571000 | USD |
| CY2017Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
7977702000 | USD |
| CY2016Q4 | us-gaap |
Securitized Regulatory Transition Assets Noncurrent
SecuritizedRegulatoryTransitionAssetsNoncurrent
|
600996000 | USD |
| CY2017Q4 | us-gaap |
Securitized Regulatory Transition Assets Noncurrent
SecuritizedRegulatoryTransitionAssetsNoncurrent
|
485031000 | USD |
| CY2016Q4 | us-gaap |
Short Term Bank Loans And Notes Payable
ShortTermBankLoansAndNotesPayable
|
415011000 | USD |
| CY2017Q4 | us-gaap |
Short Term Bank Loans And Notes Payable
ShortTermBankLoansAndNotesPayable
|
1578308000 | USD |
| CY2015 | us-gaap |
Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
|
73359000 | USD |
| CY2016 | us-gaap |
Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
|
67282000 | USD |
| CY2017 | us-gaap |
Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
|
117135000 | USD |
| CY2016Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
8081809000 | USD |
| CY2017Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
7992515000 | USD |
| CY2014Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
10101725000 | USD |
| CY2015Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
9256791000 | USD |
| CY2016Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
8081809000 | USD |
| CY2017Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
7992515000 | USD |
| CY2015 | us-gaap |
Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
|
619422000 | USD |
| CY2016 | us-gaap |
Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
|
592502000 | USD |
| CY2017 | us-gaap |
Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
|
617556000 | USD |
| CY2016Q4 | us-gaap |
Taxes Payable Current
TaxesPayableCurrent
|
181114000 | USD |
| CY2017Q4 | us-gaap |
Taxes Payable Current
TaxesPayableCurrent
|
214967000 | USD |
| CY2016Q4 | us-gaap |
Temporary Equity Carrying Amount Attributable To Parent
TemporaryEquityCarryingAmountAttributableToParent
|
203185000 | USD |
| CY2017Q4 | us-gaap |
Temporary Equity Carrying Amount Attributable To Parent
TemporaryEquityCarryingAmountAttributableToParent
|
197803000 | USD |
| CY2016Q4 | us-gaap |
Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests
TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests
|
203185000 | USD |
| CY2017Q4 | us-gaap |
Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests
TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests
|
197803000 | USD |
| CY2016Q4 | us-gaap |
Temporary Equity Shares Authorized
TemporaryEquitySharesAuthorized
|
1075105 | shares |
| CY2017Q4 | us-gaap |
Temporary Equity Shares Authorized
TemporaryEquitySharesAuthorized
|
892307 | shares |
| CY2016Q4 | us-gaap |
Temporary Equity Shares Outstanding
TemporaryEquitySharesOutstanding
|
1075105 | shares |
| CY2017Q4 | us-gaap |
Temporary Equity Shares Outstanding
TemporaryEquitySharesOutstanding
|
892307 | shares |
| CY2016Q4 | us-gaap |
Treasury Stock Shares
TreasuryStockShares
|
75623363 | shares |
| CY2017Q4 | us-gaap |
Treasury Stock Shares
TreasuryStockShares
|
75235135 | shares |
| CY2016Q4 | us-gaap |
Treasury Stock Value
TreasuryStockValue
|
5498584000 | USD |
| CY2017Q4 | us-gaap |
Treasury Stock Value
TreasuryStockValue
|
5397637000 | USD |
| CY2016Q4 | us-gaap |
Unamortized Debt Issuance Expense
UnamortizedDebtIssuanceExpense
|
128849000 | USD |
| CY2017Q4 | us-gaap |
Unamortized Debt Issuance Expense
UnamortizedDebtIssuanceExpense
|
126033000 | USD |
| CY2017 | us-gaap |
Unrealized Gain Loss On Cash Flow Hedging Instruments
UnrealizedGainLossOnCashFlowHedgingInstruments
|
55000000 | USD |
| CY2014Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
4736785000 | USD |
| CY2015Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
2611585000 | USD |
| CY2016Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
3909855000 | USD |
| CY2017Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
4871846000 | USD |
| CY2015 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
|
3966535000 | USD |
| CY2016 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
|
265653000 | USD |
| CY2017 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
|
442379000 | USD |
| CY2015 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities
UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
|
68227000 | USD |
| CY2016 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities
UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
|
337263000 | USD |
| CY2017 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities
UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
|
0 | USD |
| CY2015Q4 | us-gaap |
Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued
UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued
|
27000000 | USD |
| CY2016Q4 | us-gaap |
Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued
UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued
|
30000000 | USD |
| CY2017Q4 | us-gaap |
Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued
UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued
|
38000000 | USD |
| CY2015 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
|
1850705000 | USD |
| CY2016 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
|
1532782000 | USD |
| CY2017 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
|
1120687000 | USD |
| CY2015 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
|
59815000 | USD |
| CY2016 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
|
368404000 | USD |
| CY2017 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
|
283683000 | USD |
| CY2015 | us-gaap |
Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations
UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
|
958000 | USD |
| CY2016 | us-gaap |
Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations
UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
|
0 | USD |
| CY2017 | us-gaap |
Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations
UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
|
0 | USD |
| CY2015Q4 | us-gaap |
Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
|
955000000 | USD |
| CY2016Q2 | us-gaap |
Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
|
63500000 | USD |
| CY2016Q4 | us-gaap |
Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
|
1240000000 | USD |
| CY2017Q4 | us-gaap |
Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
|
1462000000 | USD |
| CY2015 | us-gaap |
Utilities Operating Expense Fuel Used
UtilitiesOperatingExpenseFuelUsed
|
2452171000 | USD |
| CY2016 | us-gaap |
Utilities Operating Expense Fuel Used
UtilitiesOperatingExpenseFuelUsed
|
1809200000 | USD |
| CY2017 | us-gaap |
Utilities Operating Expense Fuel Used
UtilitiesOperatingExpenseFuelUsed
|
1991589000 | USD |
| CY2015 | us-gaap |
Utilities Operating Expense Maintenance And Operations
UtilitiesOperatingExpenseMaintenanceAndOperations
|
3354981000 | USD |
| CY2016 | us-gaap |
Utilities Operating Expense Maintenance And Operations
UtilitiesOperatingExpenseMaintenanceAndOperations
|
3296711000 | USD |
| CY2017 | us-gaap |
Utilities Operating Expense Maintenance And Operations
UtilitiesOperatingExpenseMaintenanceAndOperations
|
3423689000 | USD |
| CY2015 | us-gaap |
Utility Revenue
UtilityRevenue
|
11513251000 | USD |
| CY2016Q1 | us-gaap |
Utility Revenue
UtilityRevenue
|
2609852000 | USD |
| CY2016Q2 | us-gaap |
Utility Revenue
UtilityRevenue
|
2462562000 | USD |
| CY2016Q3 | us-gaap |
Utility Revenue
UtilityRevenue
|
3124703000 | USD |
| CY2016Q4 | us-gaap |
Utility Revenue
UtilityRevenue
|
2648528000 | USD |
| CY2016 | us-gaap |
Utility Revenue
UtilityRevenue
|
10845645000 | USD |
| CY2017Q1 | us-gaap |
Utility Revenue
UtilityRevenue
|
2588458000 | USD |
| CY2017Q2 | us-gaap |
Utility Revenue
UtilityRevenue
|
2618550000 | USD |
| CY2017Q3 | us-gaap |
Utility Revenue
UtilityRevenue
|
3243628000 | USD |
| CY2017Q4 | us-gaap |
Utility Revenue
UtilityRevenue
|
2623845000 | USD |
| CY2017 | us-gaap |
Utility Revenue
UtilityRevenue
|
11074481000 | USD |
| CY2015 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
179176356 | shares |
| CY2015 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
179200000 | shares |
| CY2016 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
178900000 | shares |
| CY2016 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
178885660 | shares |
| CY2017 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
180500000 | shares |
| CY2017 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
180535893 | shares |
| CY2015 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
179176356 | shares |
| CY2016 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
178885660 | shares |
| CY2017 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
179671797 | shares |
| CY2017 | us-gaap |
Use Of Estimates
UseOfEstimates
|
<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:justify;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;font-weight:bold;text-decoration:underline;">Use of Estimates in the Preparation of Financial Statements</font></div><div style="line-height:120%;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:48px;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">In conformity with generally accepted accounting principles in the United States of America, the preparation of Entergy Corporation’s consolidated financial statements and the separate financial statements of the Registrant Subsidiaries requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues, and expenses, and the disclosure of contingent assets and liabilities.  Adjustments to the reported amounts of assets and liabilities may be necessary in the future to the extent that future estimates or actual results are different from the estimates used.</font></div></div> |
