Name:	nee_AccruedLiabilityForNuclearMaintenanceCosts
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of reserve amortization recognized

No definition available.

Name:	nee_Amountofreserveamortizationrecognized
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Approximate number of customer accounts serviced by FPL.

No definition available.

Name:	nee_ApproximateNumberOfCustomerAccounts
Namespace Prefix:	nee_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Name:	nee_BasisOfPresentationAbstract
Namespace Prefix:	nee_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

For FPL, the amount of storm restoration costs that can be absorbed without seeking recovery through a rate adjustment from the FPSC or filing a petition with the FPSC.

No definition available.

Name:	nee_CapacityToAbsorbStormRestorationCosts
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

For NextEra Energy Resources, this element represents the capitalized major maintenance costs, net of accumulated amortization, which are included in other assets in the consolidated balance sheets. These major maintenance costs are for nuclear generating units and combustion turbines.

No definition available.

Name:	nee_CapitalizedMajorMaintenanceCosts
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Name:	nee_ConstructionActivityAbstract
Namespace Prefix:	nee_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The amount of convertible ITCs recorded during the year. Convertible ITCs are amortized as a reduction to depreciation and amortization expense over the estimated life of the related property, plant and equipment.

No definition available.

Name:	nee_ConvertibleInvestmentTaxCredits
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Convertible investment tax credits (ITCs) included in other receivables on the consolidated balance sheets. Convertible ITCs are amortized as a reduction to depreciation and amortization expense over the estimated life of the related property, plant and equipment.

No definition available.

Name:	nee_ConvertibleInvestmentTaxCreditsIncludedInOtherReceivables
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Name:	nee_DecommissioningOfNuclearPlantsDismantlementOfPlantsAndOtherAccruedAssetRemovalCostsAbstract
Namespace Prefix:	nee_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Deemed capital structure of subsidiary for purposes of allocating interest expense.

No definition available.

Name:	nee_DeemedCapitalStructure
Namespace Prefix:	nee_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Deferred income tax benefit related to the difference between the financial statement and tax bases of renewable property.

No definition available.

Name:	nee_DeferredIncomeTaxBenefitAssociatedWithConvertibleInvestmentTaxCredits
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount of depreciation reserve surplus that may be amortized under the 2012 rate agreement.

No definition available.

Name:	nee_DepreciationReserveSurplusUnder2012RateAgreement
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

For FPL, this element represents the threshold of the earned regulatory ROE above which retail base rate reduction may be sought.

No definition available.

Name:	nee_EarnedRegulatoryRoeThresholdAboveWhichRetailbaseRateReductionMayBeSought
Namespace Prefix:	nee_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

For FPL, this element represents the threshold of the earned regulatory ROE below which retail base rate relief may be sought.

No definition available.

Name:	nee_EarnedRegulatoryRoeThresholdBelowWhichRetailbaseRateReliefMayBeSought
Namespace Prefix:	nee_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

For NextEra Energy Resources, the effective period for Seabrook Station's decommissioning funding plan filed with the New Hampshire Nuclear Decommissioning Financing Committee (NDFC).

No definition available.

Name:	nee_EffectivePeriodForDecommissioningFundingPlanForSubsidiary
Namespace Prefix:	nee_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

For FPL, this element represents the percentage of electric distribution assets to gross investment in electric utility plant in service.

No definition available.

Name:	nee_ElectricDistributionAssetsToGrossInvestmentInElectricUtilityPlantInService
Namespace Prefix:	nee_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

For FPL, this element represents the percentage of electric generating assets to gross investment in electric utility plant in service.

No definition available.

Name:	nee_ElectricGeneratingAssetsToGrossInvestmentInElectricUtilityPlantInService
Namespace Prefix:	nee_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Name:	nee_ElectricPlantDepreciationAndAmortizationAbstract
Namespace Prefix:	nee_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

For FPL, this element represents the percentage of electric transmission assets to gross investment in electric utility plant in service.

No definition available.

Name:	nee_ElectricTransmissionAssetsToGrossInvestmentInElectricUtilityPlantInService
Namespace Prefix:	nee_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Name:	nee_FpscRateOrderRateCaseAbstract
Namespace Prefix:	nee_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

For FPL, total of franchise fees and gross receipts taxes reported gross in operating revenues and taxes other than income taxes and other on the Consolidated Statements of Income.

No definition available.

Name:	nee_FranchiseFeesAndGrossReceiptsTaxes
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

For FPL, earnings on nuclear decommissioning reserve funds, net of taxes, which are reinvested in the funds and recognized as income/loss with an offset recorded to reflect a corresponding increase/decrease in the related regulatory liability accounts (with no effect on net income).

No definition available.

Name:	nee_FundEarningsOnDecommissioningFundsOfWhollyOwnedSubsidiary
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

For FPL, this element represents the percentage of general facilities assets to gross investment in electric utility plant in service.

No definition available.

Name:	nee_GeneralFacilitiesAssetsToGrossInvestmentInElectricUtilityPlantInService
Namespace Prefix:	nee_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

For FPL, this amount represents the increase in retail base rate revenues on an annualized basis beginning when the rate agreement became effective.

No definition available.

Name:	nee_IncreaseInBaseRateRevenues
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

For FPL, this element represents the increment (in kwh) of usage on which the future storm restoration costs maximum surcharge is based.

No definition available.

Name:	nee_IncrementOfUsageInKwhOnWhichSurchargeIsBased
Namespace Prefix:	nee_
Data Type:	num:energyItemType
Balance Type:	na
Period Type:	duration

Loss Contingency Accrual, Reimbursement

No definition available.

Name:	nee_LossContingencyAccrualReimbursement
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

For NextEra Energy Resources, this element represents the amount of major maintenance costs, which are included in OM (operations and maintenance) expenses in the consolidated statements of income. These major maintenance costs are primarily for nuclear generating units and combustion turbines.

No definition available.

Name:	nee_MajorMaintenanceCosts
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Name:	nee_MajorMaintenanceCostsAbstract
Namespace Prefix:	nee_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

ForFPL,MaximumAmountOfFossilDismantlementReserveThatMayBeAmortizedUnderThe2012RateAgreement

No definition available.

Name:	nee_Maximumamountoffossildismantlementreservethatmaybeamortizedunderthe2012Rateagreement
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

For FPL, the maximum amount of surplus depreciation taken in any one calendar year, which can vary (with any unused portion of the maximum rolling over to and available in subsequent years), provided the regulatory ROE remains with the range of 9% to 11%.

No definition available.

Name:	nee_MaximumAmountOfSurplusDepreciationTakenInAnyOneCalendarYear
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

For FPL, the maximum amount of surplus depreciation that may be used over the course of the 2010 rate agreement.

No definition available.

Name:	nee_MaximumAmountOfSurplusDepreciationThatMayBeUsedOverCourseOfAgreement
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

For substantially all of FPL's property, the maximum interval (in years) between depreciation studies that are performed and filed with the Florida Public Service Commission (FPSC).

No definition available.

Name:	nee_MaximumIntervalBetweenDepreciationStudies
Namespace Prefix:	nee_
Data Type:	us-types:durationStringItemType
Balance Type:	na
Period Type:	duration

For FPL, the maximum interval (in years) between nuclear decommissioning studies that are submitted to the Florida Public Service Commission (FPSC) for approval.

No definition available.

Name:	nee_MaximumIntervalBetweenNuclearDecommissioningStudies
Namespace Prefix:	nee_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

For FPL, the maximum interval (in years) between plant dismantlement studies that are submitted to the Florida Public Service Commission (FPSC) for approval.

No definition available.

Name:	nee_MaximumIntervalBetweenPlantDismantlementStudies
Namespace Prefix:	nee_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

For FPL, this element represents the future storm restoration costs maximum surcharge for every 1,000 kwh of usage on residential bills during the first 12 months.

No definition available.

Name:	nee_MaximumSurcharge
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Stock converted into the right to receive number of shares

No definition available.

Name:	nee_MergerConversionofStockRatio
Namespace Prefix:	nee_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

For NextEra Energy Resources, this element represents the net book value of assets which serve as collateral that secure various financings for electric generating facilities.

No definition available.

Name:	nee_NetBookValueOfAssetsServingAsCollateral
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

For FPL, this element represents the amount of nuclear maintenance costs recognized during the period, which are primarily included in OM (operations and maintenance) expenses in the consolidated statements of income.

No definition available.

Name:	nee_NuclearMaintenanceCosts
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

For FPL, the number of nuclear units for which the ultimate costs of decommissioning, including costs associated with spent fuel storage above what is expected to be refunded by the U.S. Department of Energy under a spent fuel settlement agreement, are indicated in the nuclear decommissioning study submitted to the FPSC.

No definition available.

Name:	nee_NumberOfNuclearUnitsOfWhollyOwnedSubsidiary
Namespace Prefix:	nee_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Partners' Capital Account, Units, Retained

No definition available.

Name:	nee_PartnersCapitalAccountUnitsRetained
Namespace Prefix:	nee_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Percentage of depreciable electric plant in service and other property by plant type

No definition available.

Name:	nee_Percentageofgrossdepreciableassetsbyplanttype
Namespace Prefix:	nee_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

For FPL, the amount of annual expense related to plant dismantlement approved by the FPSC as part of the dismantlement study which became effective January 1, 2010.

No definition available.

Name:	nee_PlantDismantlementApprovedExpenseCurrentDismantlementStudy
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

For NextEra Energy Resources, the amount of project development costs capitalized as of the balance sheet date. These costs include land rights and other third-party costs directly associated with the development of a new project. Upon commencement of construction, these costs either are transferred to construction work in progress or remain in other assets, depending upon the nature of the cost. Capitalized development costs are charged to OM expenses when recoverability is no longer probable.

No definition available.

Name:	nee_ProjectDevelopmentCosts
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Name:	nee_ProposedMergerAbstract
Namespace Prefix:	nee_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

For FPL, this element represents the regulatory return on common equity.

No definition available.

Name:	nee_RegulatoryReturnOnCommonEquity
Namespace Prefix:	nee_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

For FPL, this element represents the regulatory return on common equity range of plus or minus basis points.

No definition available.

Name:	nee_RegulatoryReturnOnCommonEquityBasisPoints
Namespace Prefix:	nee_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Renewable Energy Assets, Power Generation Capacity

No definition available.

Name:	nee_RenewableEnergyAssetsPowerGenerationCapacity
Namespace Prefix:	nee_
Data Type:	num:powerItemType
Balance Type:	na
Period Type:	instant

The revenue equivalent of the difference in accumulated deferred income taxes computed under accounting rules, as compared to regulatory accounting rules. Included in other regulatory assets on the consolidated balance sheets, this amount is being amortized in accordance with the regulatory treatment over the estimated lives of the assets or liabilities for which the deferred tax amount was initially recognized.

No definition available.

Name:	nee_RevenueEquivalentOfDifferenceInAccumulatedDeferredIncomeTaxesComputerUnderAccountingRulesVersusRegulatoryRules
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Name:	nee_SecuritizedStormRecoveryCostsStormFundAndStormReserveAbstract
Namespace Prefix:	nee_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

For FPL, the amount of storm funded included in special use funds on Consolidated Balance Sheets.

No definition available.

Name:	nee_StormFundIncludedInSpecialUseFunds
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

For FPL, revenues from surcharges related to storm-recovery included in operating revenues on Consolidated Statements of Income.

No definition available.

Name:	nee_SurchargesRelatedToStormRecovery
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

For FPL, FPSC rules limit the recording of allowance for funds used during construction (AFUDC) to projects that cost in excess of this threshold percentage of a utility's plant in service balance, and that require more than one year to complete. FPSC rules allow construction projects below this threshold as a component of rate base.

No definition available.

Name:	nee_ThresholdOfPlantInServiceBalanceAtWhichAfudcMayBeRecorded
Namespace Prefix:	nee_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

For FPL, this element represents the minimum amount of storm restoration costs in any given calendar year at which FPL may request an increase to the maximum future storm restoration costs surcharge.

No definition available.

Name:	nee_ThresholdOfStormRestorationCostsInAnyGivenCalendarYearAtWhichSurchargeMayBeIncreased
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

This element represents NextEra Energy Resources' portion of the approximate ultimate costs of nuclear decommissioning, including costs associated with spent fuel storage above what is expected to be refunded by the Department of Energy under a spent fuel settlement agreement.

No definition available.

Name:	nee_UltimateCostsOfNuclearDecommissioningForWhollyOwnedIndirectSubsidiary
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

This element represents FPL's portion of the approximate ultimate costs of nuclear decommissioning, including costs associated with spent fuel storage above what is expected to be refunded by the Department of Energy under a spent fuel settlement agreement.

No definition available.

Name:	nee_UltimateCostsOfNuclearDecommissioningForWhollyOwnedSubsidiary
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

No definition available.

Name:	nee_UltimateCostsOfNuclearDecommissioningInCurrentYearDollarsForWhollyOwnedIndirectSubsidiary
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

No definition available.

Name:	nee_UltimateCostsOfNuclearDecommissioningInCurrentYearDollarsForWhollyOwnedSubsidiary
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The element represents FPL's portion of the approximate ultimate costs of plant dismantlement.

No definition available.

Name:	nee_UltimateCostsOfPlantDismantlement
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

This element represents FPL's portion of the approximate ultimate costs of plant dismantlement, expressed in current year dollars.

No definition available.

Name:	nee_UltimateCostsOfPlantDismantlementInCurrentYearDollars
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Name:	nee_VariableInterestEntitiesAbstract
Namespace Prefix:	nee_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Total capability of wind electric generating facilities.

No definition available.

Name:	nee_WindElectricGeneratingFacilityCapability
Namespace Prefix:	nee_
Data Type:	num:powerItemType
Balance Type:	na
Period Type:	duration

Amount of a decommissioning liability associated with a legal obligation that a firm incurs when it constructs or operates an asset that must eventually be withdrawn from active service. This may include operating assets such as nuclear power plants or shipping vessels.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 5.Y.Q2)

-URI http://asc.fasb.org/extlink&oid=27011672&loc=d3e149879-122751

Name:	us-gaap_DecommissioningLiabilityNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of gain on the sale of property that does not qualify for gain recognition as of the balance sheet date.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 605

-SubTopic 40

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 5.U.Q2)

-URI http://asc.fasb.org/extlink&oid=6955272&loc=d3e221323-122791

Name:	us-gaap_DeferredGainOnSaleOfProperty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Name:	us-gaap_DeferredIncomeTaxesAndTaxCreditsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Amount of interest capitalized, including amount of allowance for funds used during construction.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Allowance for Funds Used during Construction

-URI http://asc.fasb.org/extlink&oid=6504829

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 980

-SubTopic 835

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6501662&loc=d3e56162-110433

Name:	us-gaap_InterestCostsIncurredCapitalized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount of loss contingency liability.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

Name:	us-gaap_LossContingencyAccrualAtCarryingValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

No definition available.

Name:	us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Name:	us-gaap_NoncontrollingInterestAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
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Monetary value of the issuance of new units of limited partnership interest in a public offering, net of offering costs. This is a parenthetical disclosure.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770

Name:	us-gaap_PartnersCapitalAccountPublicSaleOfUnitsNetOfOfferingCosts
Namespace Prefix:	us-gaap_
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Balance Type:	credit
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The number of units sold in a public offering of each class of partners' capital account. Units represent shares of ownership of the general, limited, and preferred partners.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 5

-Subparagraph (SAB TOPIC 4.F)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph 16

-Subparagraph a, b

-Article 6

Name:	us-gaap_PartnersCapitalAccountUnitsSoldInPublicOffering
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
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Cash outflow related to the acquisition or continued holding of limited partnership interests held for investment purposes.

No definition available.

Name:	us-gaap_PaymentsToAcquireLimitedPartnershipInterests
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

No definition available.

Name:	us-gaap_PropertyPlantAndEquipmentUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Total increase in earnings in the period representing the cost of equity (based on assumed rate of return) and/or borrowed funds (based on interest rate) used to finance construction of regulated assets, which is expected to be recovered through rate adjustments.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 980

-SubTopic 360

-Section 25

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6500269&loc=d3e45485-110386

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 980

-SubTopic 340

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6499975&loc=d3e44278-110382

Name:	us-gaap_PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Effective rate, including composite rate, of cost of financing additions to qualifying regulated assets, commonly called allowance for funds used during construction.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 980

-SubTopic 835

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6501662&loc=d3e56162-110433

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 980

-SubTopic 835

-Section 25

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6501569&loc=d3e55921-110430

Name:	us-gaap_PublicUtilitiesAllowanceForFundsUsedDuringConstructionRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Composite depreciation rate for public utility plants in service.

No definition available.

Name:	us-gaap_PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Name:	us-gaap_RegulatedOperatingRevenueAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
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The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against short-term borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. For a classified balance sheet represents the current portion only (the noncurrent portion has a separate concept); there is a separate and distinct element for unclassified presentations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 1

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.1)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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