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2.2.0.25truefalse009060 - Disclosure - Income Taxes (Details)truefalseIn Millions, unless otherwise specifiedfalse1falsefalseUSDfalsefalse1/1/2010 - 12/31/2010 USD ($) USD ($) / shares $c00323http://www.sec.gov/CIK0000753308duration2010-01-01T00:00:002010-12-31T00:00:00u000Standardhttp://www.xbrl.org/2003/iso4217USDiso42170u002Standardhttp://www.xbrl.org/2003/instancesharesxbrli0u001Standardhttp://www.xb rl.org/2003/instancepurexbrli0u003Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0u004Standardhttp://nexteraenergyresources.com/20101231mWnee0USDUSD$2falsefalseUSDfalsefalse1/1/2009 - 12/31/2009 USD ($) USD ($) / shares $c00022http://www.sec.gov/CIK0000753308duration2009-01-01T00:00:002009-12-31T00:00:00u000Standardhttp://www.xbrl.org/2003/iso4217USDiso42170u001Standardhttp://www.xbrl.org/2003/instancepurexbrli0u003Dividehttp://www.xbrl. 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available.falsefalseFederal:3false0us-gaap_CurrentFederalTaxExpenseBenefitus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse1100000011[1]falsetruefalsefalsefalse2truefalsefalse-18000000-18[1]falsetruefalsefalsefalse3truefalsefalse-132000000-132[1]falsetruefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe component of income tax expense for the period representing amounts paid or payable (or refundable) as determined by applying the provisions of enacted federal tax law to the domestic taxable income (loss) from continuing operations.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section I -Paragraph Question 1-7 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 289 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 45 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 falsefalseCurrent4false0us-gaap_DeferredFederalIncomeTaxExpenseBenefitus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse434000000434falsefalsefalsefalsefalse2truefalsefalse290000000290falsefalsefalsefalsefalse3truefalse< /IsRatio>false542000000542falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe component of total income tax expense for the period comprised of the net change during the period in the entity's domestic deferred tax assets and liabilities attributable to continuing operations as determined by applying the provisions of the federally enacted tax law.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 8, 16, 17, 289 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section I -Subsection 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 45 -Subparagraph b falsefalseDeferred5false0us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperationsus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsetotallabel1truefalsefalse445000000445falsefalsefalsefalsefalse2truefalsefalse272000000272falsefalsefalsefalsefalse3truefalsefalse410000000410falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe sum of domestic current and deferred income tax expense (benefit) attributable to continuing operations.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Subparagraph 1 -Article 4 truefalseTotal federal6true0us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperationsAbstractus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefal sefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseState:7false0us-gaap_CurrentStateAndLocalTaxExpenseBenefitus-gaaptruedebitdur ationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse1100000011[1]falsefalsefalsefalsefalse2truefalsefalse7700000077[1]falsefalsefalsefalsefalse3truefalsefalse2900000029[1]falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe component of income tax expense for the period representing amounts paid or payable (or refundable) as determined by applying the provisions of enacted state and local tax law to relevant amounts of taxable income (loss) from continuing operations.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section I -Subsection 7 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 289 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 45 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 falsefalseCurrent8false0us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefitus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse7600000076falsefalsefalsefalsefalse2truefalsefalse-22000000-22falsefalsefalsefalsefalse3truefa lsefalse1100000011falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe component of total income tax expense for the period comprised of the net change in the entity's state and local deferred tax assets and liabilities attributable to continuing operations as determined by applying the provisions of the applicable enacted tax laws.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 8, 16, 17, 289 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section I -Subsection 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 45 -Subparagraph b falsefalseDeferred9false0us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperationsus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsetotallabel1truefa lsefalse8700000087falsefalsefalsefalsefalse2truefalsefalse5500000055falsefalsefalsefalsefalse3truefalsefalse4000000040falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe sum of state and local current and deferred income tax expense (benefit) attributable to continuing operations.No authoritative reference available.truefalseTotal state10false0us-gaap_IncomeTaxExpenseBenefitus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsetotallabel1truefalsefalse532000000532[2]falsefalsefalsefalsefalse2truefalsefalse327000000327[2]falsefalsefalsefalsefalse3truefalsefalse450000000450[2]falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe sum of the current income tax expense (benefit) and the deferred income tax expense (benefit) pertaining to continuing operations.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 45 -Subparagraph a, b truefalseTotal income taxes11true0us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstractus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseReconciliation between the effective income tax rates and the applicable statutory rates [Abstract]12false0us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxR ateus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1truetruefalse0.350.35falsefalsefalsefalsefalse2truetruefalse0.350.35falsefalsefalsefalsefalse3truetruefalse0.350.35fals efalsefalsefalsefalseOtherus-types:percentItemTypepureThe domestic federal statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate shall be the regular tax rate if there are alternative tax systems.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 47 falsefalseStatutory federal income tax rate (in hundredths)13true0nee_IncreasesReductionsResultingFromAbstractneefalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseIncreases (reductions) resulting from:14false0us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxesus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1truetruefalse0.0240.024falsefalsefalsefalsefalse2truetruefalse0.0190.019falsefalsefalsefalsefalse3truetruefalse0.0130.013falsefalsefalsefalsefalseOtherus-types:percentItemTypepureThe portion of the difference between the effective income tax rate and domestic federal statutory income tax rate that can be explained by the state and local income tax expense (benefit), net of the federal tax benefit (expense) thereon, recorded during the period.No authoritative reference available.falsefalseState income taxes - net of federal income tax benefit (in hundredths)15false0nee_EffectiveIncomeTaxRateReconciliationAllowanceForOtherFundsUsedDuringConstructionneefalsenadurationThe portion of the difference between the effective income tax rate and domestic federal statutory income tax rate that can...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truetruefalse-0.0050-0.0050< FootnoteIndexer />falsefalsefalsefalsefalse2truetruefalse-0.01-0.01falsefalsefalsefalsefalse3truetruefalse-0.006-0.006falsefalsefalsefalsefalseOtherus-types:percentItemTypepureThe portion of the difference between the effective income tax rate and domestic federal statutory income tax rate that can be explained by the allowance for other funds used during construction, a nondeductible expense.No authoritative reference available.falsefalseAllowance for other funds used during construction (in hundredths)16false0nee_Effective IncomeTaxRateReconciliationAmortizationOfInvestmentTaxCreditsneefalsenadurationThe portion of the difference between the effective income tax rate and domestic federal statutory income tax rate that can...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truetruefalse-0.0010-0.0010falsefalsefalsefalsefalse2truetruefalse-0.004-0.004falsefalsefalsefalsefalse3truetruefalse-0.007-0.007falsefalsefalsefalsefalseOtherus-types:percentItemTypepureThe portion of the difference between the effective income tax rate and domestic federal statutory income tax rate that can be explained by investment tax credits (ITCs) for FPL that are deferred and amortized to income over the approximate lives of the related property in accordance with the regulatory treatment.No authoritative reference available.falsefalseAmo rtization of ITCs - FPL (in hundredths)17false0nee_EffectiveIncomeTaxRateReconciliationProductionAndInvestmentTaxCreditsneefalsenadurationThe portion of the difference between the effective income tax rate and domestic federal statutory income tax rate that can...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truetruefalse-0.1220-0.1220falsefalsefalsefalsefalse2truetruefalse-0.131-0.131falsefalsefalsefalsefalse3truetruefalse-0.127-0.127falsefalsefalsefalsefalseOtherus-types:percentItemTypepureThe portion of the difference between the effective income tax rate and domestic federal statutory income tax rate that can be explained for NextEra Energy Resources by investment tax credits (ITCs) as a reduction to income tax expense when the related energy property is placed into service. Production tax credits (PTCs) are recorded as a reduction of current income taxes payable, unless limited by tax law in which instance they are recorded as deferred tax assets.No authoritative reference available.falsefalsePTCs and ITCs - NextEra Energy Resources (in hundredths)18false0nee_EffectiveIncomeTaxRateReconciliationConvertibleInvestmentTaxCreditsneefalsenadurationThe portion of the difference between the effective income tax rate and domestic federal statutory income tax rate that can...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truetruefalse-0.0250-0.0250falsefalsefalsefalsefalse2truetruefalse-0.043-0.04 3falsefalsefalsefalsefalse3truetruefalse00falsefalsefalsefalsefalseOtherus-types:percentItemTypepureThe portion of the difference between the effective income tax rate and domestic federal statutory income tax rate that can be explained by convertible investment tax credits (ITCs) for NextEra Energy Resources that is a deferred income tax benefit recorded in income tax expense in the year that the renewable property is placed in service.No authoritative reference available.falsefalseConvertible ITCs - NextEra Energy Resources (in hundredths)19false0us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustmentsus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1truetruefalse-0.0070-0.0070falsefalsefalsefalsefalse2truetruefalse-0.012-0.012falsefalsefalsefalsefalse3truetruefalse-0.007-0.007falsefalsefalsefalsefalseOtherus-types:perc entItemTypepureThe portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to all other items not otherwise listed in the existing taxonomy.No authoritative reference available.falsefalseOther - net (in hundredths)20false0us-gaap_EffectiveIncomeTaxRateContinuingOperationsus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsetotallabel1truetruefalse0.2140.214falsefalsefalsefalsefalse2truetruefalse0.1690.169falsefalsefalsefalsefalse3truetruefalse0.2160.216falsefalsefalsefalsefalseOtherus-types:percentItemTypepureA ratio calculated by di viding the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 47 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Subparagraph 2 -Article 4 truefalseEffective income tax rate (in hundredths)21true0us-gaap_DeferredTaxLiabilitiesAbstractus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1falsefal sefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseDeferred tax liabilities:22false0us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipmentus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1truefalsefalse77950000007795falsefalsefalsefalsefalse2truefalsefalse69680000006968falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalse falsefalseMonetaryxbrli:monetaryItemTypemonetaryThe amount as of the balance sheet date of the estimated future tax effects attributable to the difference between the tax basis of capital assets and the basis of capital assets computed in accordance with generally accepted accounting principles. The difference in basis, attributable to different capitalization of costs, depreciation, or amortization methodologies, will increase future taxable income when such basis difference is realized. Capital assets include but are not limited to assets such as land, real estate, leasehold improvements, machinery and equipment and furniture and fixtures.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 43 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 11 -Subparagraph d, e, f falsefalseProperty-related23false0us-gaap_DeferredTaxLiabilitiesPrepaidPensionCostsus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalse< /IsRatio>false485000000485falsefalsefalsefalsefalse2truefalsefalse457000000457falsefalsefalsefalsefalse3false< IsRatio>falsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe amount as of the balance sheet date of the estimated future tax effects attributable to the difference between the tax basis of pension liabilities funded in advance and the basis of a prepaid pension asset determined in accordance with generally accepted accounting principles. The difference in basis of such costs will increase future taxable income when such basis differe nce reverses. (Prepaid pension costs represented the cumulative employer's contributions in excess of net pension cost recognized, before the adoption of the recognition provisions of FAS 158. Under FAS 158, prepaid pension costs are no longer recognized in the statement of financial position.)Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 43 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 11 -Subparagraph d falsefalsePension24false0nee_DeferredTaxLiabilitiesStormReserveDeficiencyneefalsecreditinstantThe amount as of the balance sheet date of the estimated future tax effects attributable to the difference between the...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel 1truefalsefalse258000000258falsefalsefalsefalsefalse2truefalsefalse279000000279falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe amount as of the balance sheet date of the estimated future tax effects attributable to the difference between the methods used to account for storm reserve deficiency for tax purposes and under generally accepted accounting principles which will increase future taxable income when such diff erence reverses.No authoritative reference available.falsefalseStorm reserve deficiency25false0nee_DeferredTaxLiabilitiesNuclearDecommissioningTrustsneefalsecreditinstantThe amount as of the balance sheet date of the estimated future tax effects attributable to the difference between the...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse146000000146falsefalsefalsefalsefalse2truefalsefalse201000000201falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe amount as of the balance sheet date of the estimated future tax effects attributable to the difference between the methods used to account for nuclear decommissioning trusts for t ax purposes and under generally accepted accounting principles which will increase future taxable income when such difference reverses.No authoritative reference available.falsefalseNuclear decommissioning trusts26false0us-gaap_DeferredTaxLiabilitiesDerivativesus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse226000000226falsefalsefalsefalsefalse2truefalsefalse116000000116falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryCarrying amount as of the balance sheet date for deferred tax consequences attributable to taxable temporary differences resulting from derivative transactions. Deferred tax consequences are fut ure tax effects on income taxes as measured by the applicable enacted tax rate and provisions of the enacted tax law resulting from temporary differences and carryforwards.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 43 -Subparagraph a falsefalseNet unrealized gains on derivatives27false0nee_DeferredTaxLiabilitiesDeferredFuelCostsneefalsecreditinstantThe amount as of the balance sheet date of the estimated future tax effects attributable to the difference between the...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselab el1truefalsefalse101000000101falsefalsefalsefalsefalse2truefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe amount as of the balance sheet date of the estimated future tax effects attributable to the difference between the methods used to account for fuel costs for tax purposes and under generally accepted accounting principles which will increase future taxable income when such diffe rence reverses.No authoritative reference available.falsefalseDeferred fuel costs28false0us-gaap_DeferredTaxLiabilitiesOtherus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse638000000638falsefalsefalsefalsefalse2truefalsefalse371000000371falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe cumulative amount of the estimated future tax effects attributable to other temporary differences not otherwise specified in this taxonomy that were expensed for tax purposes but capitalized in conformity with generally accepted accounting principles, or which were recognized as revenue under GA AP but not for tax purposes, which will reverse in future periods.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 43 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 11 -Subparagraph a, d, e falsefalseOther29false0us-gaap_DeferredTaxLiabilitiesus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsetotallabel1truefalsefals e96490000009649falsefalsefalsefalsefalse2truefalsefalse83920000008392falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe cumulative amount of all deferred tax liabilities, which result from applying the applicable tax rate to net taxable temporary differences pertaining to each jurisdiction to which the entity is obligated to pay income tax. A taxable temporary difference is a difference between the tax basis and the carrying amount of an asset or liability in the financial statements prepared in accordance with general ly accepted accounting principles that will result in taxable amounts in one or more future periods.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 42, 43 truefalseTotal deferred tax liabilities30true0us-gaap_DeferredTaxAssetsNetAbstractus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1falsefalse< DisplayZeroAsNone>false00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseDeferred tax assets and valuation allowance:31false0nee_DeferredTaxAssetsTaxDeferredExpenseDecommissioningReservesneefalsedebitinstantThe tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from estimated...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse393000000393falsefalsefalsefalsefalse2truefalsefalse379000000379falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from estimated decommissioning reserves, which can only be deducted for tax purposes when expenses are actually incurred, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken.No authoritative reference available.falsefalseDecommissioning reserves32false0us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefitsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1truefalsefalse175000000175falsefalsefalsefalsefalse2truefalsefalse183000000183falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe tax effect as of the balance sheet date of the amount of estimated future tax deductions arising from postretirement benefits, which can only be deducted for tax purposes when actual costs are incurred, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 43 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 11 -Subparagraph b falsefalsePostretirement benefits33false0us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1truefalse false663000000663[3]falsefalsefalsefalsefalse2truefalsefalse270000000270[3]falsefalsefalsefalsefalse 3falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe sum of the tax effects as of the balance sheet date of the amount of excesses of tax deductions over gross income in a year which cannot be used on the tax returns in the current year but can be carried forward to reduce taxable income or income taxes payable in a future year, for which there must be sufficient tax-basis income to util ize a portion or all of the carryforward amount to realize the deferred tax asset.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 43, 289 falsefalseNet operating loss carryforwards34false0us-gaap_TaxCreditCarryforwardDeferredTaxAssetus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse18190000001819[4]falsefalsefalsefalsefalse2truefalsefalse13640000001364[4]falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe cumulative amount of future tax effects arising from the unused tax credit carryforward that cannot be utilized on the tax return during a year that may be carried forward to reduce taxable income or taxes payable in a future year; 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net of deducting the allocated valuation allowance, if any, to redu ce such amount to net realizable value.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 43 truefalseNet deferred tax assets39false0us-gaap_DeferredTaxAssetsLiabilitiesNetus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsetotallabel1truefalsefalse51600000005160falsefalsefalsefalsefalse2truefalsefalse47460000004746falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryFor entities that net deferred tax assets and tax liabilities, represents the unclassified net amount of deferred tax assets and liabilities as of the balance sheet date, which result from applying the applicable enacted tax rate to net temporary differences and carryforwards pertaining to assets or liabilities. A temporary difference is a difference between the tax basis of an as set or liability and its carrying amount in the financial statements prepared in accordance with generally accepted accounting principles that will reverse in ensuing periods.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 42, 43 truefalseNet accumulated deferred income taxes40false0us-gaap_UnrecognizedTaxBenefitsResultingInNetOperatingLossCarryforwardus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse4200000042falsefalsefalsefalsefalse2truefalsefalse-26000000-26falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAmount of an unrecognized tax benefit that is directly related to a position taken in a tax year that results in a net operating loss carryforward. 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These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.falsefalseDeferred tax assets and liabilities included in the consolidated balance sheets [Abstract]43false0us-gaap_DeferredTaxAssetsNetCurrentus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse1700000017falsefalsefalsefalsefalse2truefalsefalse128000000128falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe current portion of the aggregate tax effects as of the balance sheet date of all future tax deductions arising from temporary differences between tax basis and generally a ccepted accounting principles basis recognition of assets, liabilities, revenues and expenses, which can only be deducted for tax purposes when permitted under enacted tax laws; after deducting the allocated valuation allowance, if any, to reduce such amount to net realizable value. Deferred tax liabilities and assets shall be classified as current or noncurrent based on the classification of the related asset or liability for financial reporting. A deferred tax liability or asset that is not related to an asset or liability for financial reporting, including deferred tax assets related to carryforwards, shall be classified according to the expected reversal date of the temporary difference. An unrecognized tax benefit that is directly related to a position taken in a tax year that results in a net operating loss carryforward should be presented as a reduction of the related deferred tax asset.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 41, 42, 43 falsefalseOther current assets44false0us-gaap_DeferredTaxAssetsNetNoncurrentus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse106000000106falsefalsefalsefalsefalse2truefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe noncurrent portion as of the balance sheet date of the aggregate carrying amount of all future tax deductions arising from temporary differences between tax basis and generally accepted accounting principles basis recognition of assets, liabilities, revenues and expenses, which can only be deducted for tax purposes when permitted under enacted tax laws; after the valuation allowance, if any, to reduce such amount to net realizable value. Deferred tax liabilities and assets shall be classified as current or noncurrent based on the classification of the related asset or liability for financial reporting. A deferred tax liability or asset that is not related to an asset or liability for financial reporting, including deferred tax assets related to carryforwards, shall be classified according to the expected reversal date of the temporary difference.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 41, 42, 43 falsefalseOther assets45false0us-gaap_DeferredTaxLiabilitiesCurrentus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse-174000000-174falsefalsefalsefalsefalse2truefalsefalse-14000000-14falsefalsefalsefalsefalse3falsefalse< /IsRatio>false00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryRepresents the current portion of deferred tax liabilities, which result from applying the applicable tax rate to net taxable temporary differences pertaining to each jurisdiction to which the entity is obligated to pay income tax. A current taxable temporary difference is a difference between the tax basis and the carrying amount of a current asset or liability in the financial statements p repared in accordance with generally accepted accounting principles. In a classified statement of financial position, an enterprise shall separate deferred tax liabilities and assets into a current amount and a noncurrent amount. Deferred tax liabilities and assets shall be classified as current or noncurrent based on the classification of the related asset or liability for financial reporting. A deferred tax liability or asset that is not related to an asset or liability for financial reporting, including deferred tax assets related to carryforwards, shall be classified according to the expected reversal date of the temporary difference.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 41, 42, 43 falsefalseOther current liabilities46false0us-gaap_DeferredTaxLiabilitiesNoncurrentus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1truefalsefalse51090000005109falsefalsefalsefalsefalse2truefalsefalse48600000004860falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryRepresents the noncurrent portion of deferred tax liabilities, which result from applying the applicable tax rate to net taxable temporary differences pertaining to each jurisdiction to which the entity is obligated to pay income tax. A noncurrent taxable temporary difference is a difference between the tax basis and the carrying amount of a noncurrent asset or liability in the fi nancial statements prepared in accordance with generally accepted accounting principles. In a classified statement of financial position, an enterprise shall separate deferred tax liabilities and assets into a current amount and a noncurrent amount. Deferred tax liabilities and assets shall be classified as current or noncurrent based on the classification of the related asset or liability for financial reporting. A deferred tax liability or asset that is not related to an asset or liability for financial reporting, including deferred tax assets related to carryforwards, shall be classified according to the expected reversal date of the temporary difference.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 41, 42 falsefalseAccumulated deferred income taxes47false0us-gaap_DeferredTaxAssetsLiabilitiesNetus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegated1truefalse< /IsRatio>false-5160000000-5160falsefalsefalsefalsefalse2truefalsefalse-4746000000-4746falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryFor entities that net deferred tax assets and tax liabilities, represents the unclassified net amount of deferred tax assets and liabilities as of the balance sheet date, which result from applying the applicable enacted tax rate to net temporary differences and carryforwards pertaining to assets or liabilities. 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2030falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringThe expiration date of each operating loss carryforward included in total operating loss carryforwards, or the applicable range of such expiration dates.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 48 -Subparagraph a falsefalseExpiration dates1Includes provision for unrecognized tax benefits.2NextEra Energy Resources' tax expense (benefit) includes PTCs that were recognized based on its tax sharing agreement with NextEra Energy. 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