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2.2.0.25falsefalse009100 - Disclosure - Investments in Partnerships and Joint Ventures (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. org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0u002Standardhttp://www.xbrl.org/2003/instancesharesxbrli0USDUSD$3falsefalseUSDfalsefalse1/1/2008 - 12/31/2008 USD ($) USD ($) / shares $c00000http://www.sec.gov/CIK0000753308duration2008-01-01T00:00:002008-12-31T00:00:00u000Standardhttp://www.xbrl.org/2003/iso4217USDiso42170u003Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli 0u001Standardhttp://www.xbrl.org/2003/instancepurexbrli0u002Standardhttp://www.xbrl.org/2003/instancesharesxbrli0USDUSD$4falsefalseUSDfalsefalse1/1/2004 - 12/31/2004 USD ($) $c00407http://www.sec.gov/CIK0000753308duration2004-01-01T00:00:002004-12-31T00:00:00u000Standardhttp://www.xbrl.org/2003/iso4217USDiso42170u001Standardhttp://www.xbrl.org/2003/instancepurexbrli0USDUSD$3true0us-gaap_EquityMethodInvestmentFinancialStatementReportedAmountsAbstractus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3fa lsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseEquity method investment, financial statement, reported amounts [Abstract]4false0nee_EquityMethodInvestmentsOfWhollyOwnedIndirectSubsidiaryneefalsedebitinstantThis element represents NextEra Energy Resources' carrying amount of its investments in partnerships and joint ventures.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse217000000217falsetruefalsefalsefalse2truefalsefalse173000000173falsetruefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThis element represents NextEra Energy Resources' carrying amount of its investments in partnerships and joint ventures.No authoritative reference available.falsefalseNextEra Energy Resources' investment in partnerships and joint ventures5false0nee_EquityMethodInvestmentOwnershipPercentageLowRangeneefalse< /IsBaseElement>nainstantThe low end of the range of NextEra Energy Resources' percentage ownership of common stock or equity participation in the...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truetruefalse0.0550.055falsefalsefalsefalsefalse2falsetruefalse00falsefalsefalsefalsefalse3falsetruefalse00falsefalsefalsefalsefalse4falsetruefalse00falsefalsefalsefalsefalseOtherus-types:percentItemTypepureThe low end of the range of NextEra Energy Resources' percentage ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.No authoritative reference available.falsefalseNextEra Energy Resources' ownership interest, low range (in hundredths)6false0nee_EquityMethodInvestmentOwnershipPercentageHighRangeneefalsenainstantThe high end of the range of NextEra Energy Resources' percentage ownership of common stock or equity participation in the...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truetruefalse0.500.50falsefalsefalsefalsefalse2falsetruefalse00falsefalsefalsefalsefalse3falsetruefalse00falsefalsefalsefalsefalse4falsetruefalse00 falsefalsefalsefalsefalseOtherus-types:percentItemTypepureThe high end of the range of NextEra Energy Resources' percentage ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.No authoritative reference available.falsefalseNextEra Energy Resources' ownership interest, high range (in hundredths)7true0us-gaap_EquityMethodInvestmentSummarizedFinancialInformationAbstractus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1falsefalsefalse00falsefal sefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseEquity method investment, summarized financial information [Abstract]8< /Id>false0us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLossus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse8100000081falsefalsefalsefalsefalse2truefalsefalse7800000078falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThis item represents the disclosure of summarized financial information for unconsolidated subsidiaries and 50 percent-or-less owned entities accounted for using the equity method of accounting. If investments in common stock of corporate joint ventures or other investments accounted for under the equity method are, in the aggregate, material in relation to the financial position or results of operations of an investor, it may be necessary to present summarized information as to assets of the investee, or group of investments for which combined disclosure is appropriate, either by individual financial statement caption or in groups, as appropriate. Such summarized financial information may, at a minimum, include net income or loss.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph w -Article 1 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph g -Subparagraph 1, 2 -Article 4 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 159 -Paragraph 18 -Subparagraph f Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 20 -Subparagraph d Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph bb -Article 1 falsefalseNet income9false0us-gaap_EquityMethodInvestmentSummarizedFinancialInformationAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse660000000660falsefalsefalsefalsefalse2truefalsefalse717000000717falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalse Monetaryxbrli:monetaryItemTypemonetaryThis item represents the disclosure of summarized financial information for unconsolidated subsidiaries and 50 percent-or-less owned entities accounted for using the equity method of accounting. If investments in common stock of corporate joint ventures or other investments accounted for under the equity method are, in the aggregate, material in relation to the financial position or results of operations of an investor, it may be necessary to present summarized information as to assets of the investee, or group of investments for which combined disclosure is appropriate, either by individual financial statement caption or in groups, as appropriate. Such summarized financial information may, at a minimum, include current and noncurrent assets, the total of which components are represented herein.Reference 1: http://www.xbrl.org/2003/ro le/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph w -Article 1 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph g -Subparagraph 1, 2 -Article 4 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 159 -Paragraph 18 -Subparagraph f Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 20 -Subparagraph d Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph bb -Article 1 falsefalseTotal assets10false0us-gaap_EquityMethodInvestmentSummarizedFinancialInformationLiabilitiesus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1truefalsefalse210000000210falsefalsefalsefalsefalse2truefalsefalse354000000354falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThis item represents the disclosure of summarized financial information for unconsolidated subsidiaries and 50 percent-or-less owned entities accounted for using the equity method of accounting. If investments in common stock of corporate joint ventures or other investments accounted for under the equity method are, in the aggregate, material in relation to the financial position or results of operations of an investor, it may be necessary to present summarized information as to assets of the investee, or group of investments for which combined disclosure is appropriate, either by individual financial statement caption or in groups, as appropriate. Such summarized financial information may, at a minimum, include current and noncurrent liabilities, redeemable preferred stock, and noncontrolling interest, the total of which components are represented herein.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph w -Article 1 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph g -Subparagraph 1, 2 -Article 4 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 159 -Paragraph 18 -Subparagraph f Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 20 -Subparagraph d Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph bb -Article 1 falsefalseTotal liabilities11false0us-gaap_EquityMethodInvestmentSummarizedFinancialInformationEquityOrCapitalus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1truefalsefalse450000000450falsefalsefalsefalsefalse2truefalsefalse363000000363falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThis item represents the disclosure of summarized financial information for unconsolidated subsidiaries and 50 percent-or-less owned entities accounted for using the equity method of accounting. If investments in common stock of corporate joint ventures or other investments accounted for under the equity method are, in the aggregate, material in relation to the financial position or results of operations of an investor, it may be necessary to present summarized information as to assets, liabilities, and results of operations of the investee, or group of investments for which combined disclosure is appropriate, either by individual financial statement caption or in groups, as appropriate. Such summarized financial information may include total equity or capital (as applicable).Reference 1: http://www.xbrl.org/2003/role/prese ntationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 159 -Paragraph 18 -Subparagraph f falsefalsePartners'/members' equity12false0us-gaap_EquityMethodInvestmentUnderlyingEquityInNetAssetsus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1truefalsefalse223000000223falsefalsefalsefalsefalse2truefalsefalse180000000180falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThis item represents the entity's ownership percentage in the investee multiplied by the investee's total equity.No authoritative reference available.falsefalseNextEra Energy Resources' share of underlying equity in the principal operating entities13false0us-gaap_EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquityus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1truefalsefalse-26000000-26[1]falsefalsefalsefalsefalse2truefalsefalse-15000000-15[1]falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe item represents the difference, if any, between the amount at which an investment accounted for under the equity method of accounting is carried (reported) on the balance sheet and the amount of underlying equity in net assets the reporting Entity has in the investee. A difference can arise between the carrying value of the equity method investment and the value of the Entity's amount of underlying equity in net assets of the investee, for example, from appreciation of certain assets which is not recognized in earnings, but is recognized in other comprehensive income (a separate component of shareholders' equity) by the investee.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 20 -Subparagraph a(3) falsefalseDifference between investment carrying amount and underlying equity in net assets14false0nee_EquityMethodInvestmentCarryingAmountneefalsedebitinstantThis item represents the carrying amount on the entity's balance sheet of its investment in common stock of a principal...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse197000000197falsefalsefalsefalsefalse2truefalsefalse165000000165falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefals efalsefalseMonetaryxbrli:monetaryItemTypemonetaryThis item represents the carrying amount on the entity's balance sheet of its investment in common stock of a principal operating entity equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the principal operating investee, adjusted for any distributions (dividends) and other than temporary impairment losses recognized.No authoritative reference available.falsefalseNextEra Energy Resources' investment carrying amount for the principal operating entities15false< /IsAbstractGroupTitle>0nee_RevenuesFromServicesProvidedToInvesteePartnershipsAndJointVenturesneefalsecreditdurationRevenues from services (including operations and maintenance and business management services) provided by certain...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse2500000025falsefalsefalsefalsefalse2truefalsefalse2100000021falsefalsefalsefalsefalse3truefalsefalse< /DisplayZeroAsNone>2100000021falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monet aryItemTypemonetaryRevenues from services (including operations and maintenance and business management services) provided by certain subsidiaries of NextEra Energy Resources to partnerships and joint ventures, in which NextEra Energy Resources has non-controlling non-majority owned interests.No authoritative reference available.falsefalseRevenues from services provided by certain subsidiaries of NextEra Energy Resources to investee partnerships and joint ventures16false0us-gaap_DueFromAffiliateCurrentus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1truefalsefalse3600000036falsefalsefalsefalsefalse2truefalsefalse2900000029falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAmount of receivables due from an entity that is affiliated with the reporting entity by means of direct or indirect ownership, due within 1 year (or 1 business cycle).Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph k -Subparagraph 1 -Article 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 57 -Paragraph 2 -Subparagraph d Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3 -Subparagraph a -Article 5 falsefalseNet receivables related to services provided and other payments made by certain subsidiaries of NextEra Energy Resources on behalf of investees17true0us-gaap_ProceedsFromRepurchaseOfTrustPreferredSecuritiesAbstractus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalsePreferred trust securities [Abstract]18false0us-gaap_ProceedsFromIssuanceOfTrustPreferredSecuritiesus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefal sefalsefalsefalselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4truefalsefalse300000000300falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe cash inflow from issuance of preferred stocks by a business trust or other special purpose entity, mainly established by a bank holding entity, to third party investors. The trust's assets are deeply subordinated debentures of the bank holding entity. Most trust preferred securities are subject to a mandatory redemption upon the repayment of the debentures.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 19 -Subparagraph a falsefalseProceeds from sale of preferred trust securities to the public19false0nee_InterestRateOfPreferredTrustSecuritiesneefalsenainstantThe interest rate of preferred trust securities sold to the public by a trust created by NextEra Energy. The trust is a...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsetruefalse00falsefalsefalsefalsefalse2falsetruefalse00falsefalsefalsefalsefalse3falsetruefalse00falsefalsefalsefalsefalse4truetruefalse0.058750.05875falsefalsefalsefalsefalseOtherus-types:percentItemTypepureThe interest rate of preferred trust securities sold to the public by a trust created by NextEra Energy. The trust is a 100%-owned finance subsidiary.No authoritative reference available.falsefalseInterest rate of preferred trust securities (in hundredths)20false0nee_ProceedsFromIssuanceOfTrustCommonSecuritiesneefalsedebitdurationThe cash inflow from issuance of common stocks by a business trust or other special purpose entity, mainly established by a...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4truefalsefalse90000009falsetruefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe cash inflow from issuance of common stocks by a business trust or other special purpose entity, mainly established by a bank holding entity, to third party investors. The trust's assets are deeply subordinated debentures of the bank holding entity. Most trust preferred securities are subject to a mandatory redemption upon the repayment of the debentures.No authoritative reference available.falsefalseProceeds from sale of common trust securities to NextEra Energy21false0nee_OwnershipInterestInTrustneefalsenainstantThe ownership interest in the trust created by NextEra Energy. The trust is an unconsolidated finance subsidiary that sold...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsetruefalse00falsefalsefalsefalsefalse2falsetruefalse00falsefalsefalsefalsefalse3falsetruefalse00falsefalsefalsefalsefalse4truetruefalse1.001.00falsefalsefalsefalsefalseOtherus-types:percentItemTypepureThe ownership interest in the trust created by NextEra Energy. The trust is an unconsolidated finance subsidiary that sold preferred trust securities and common trust securities.No authoritative reference available.falsefalseOwnership interest in trust (in hundredths)22false0nee_InterestRateOfJuniorSubordinatedDebenturesneefalsenai nstantThe interest rate of the junior subordinated debentures that were purchased using the proceeds from the sale of preferred and...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsetruefalse00falsefalsefalsefalsefalse2falsetruefalse00falsefalsefalsefalsefalse3falsetruefalse00falsefalsefalsefalsefalse4truetruefalse0.058750.05875falsefalsefalsefalsefalseOtherus-types:percentItemTypepureThe interest rate of the junior subordinated debentures that were purchased using the proceeds from the sale of preferred and common trust securities.< ElementReferences>No authoritative reference available.falsefalseInterest rate of junior subordinated debentures (in hundredths)23false0nee_MaturityDateOfJuniorSubordinatedDebenturesneefalsenadurationThe maturity date of the junior subordinated debentures that were purchased using the proceeds from the sale of preferred and...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00March 2044 March 2044falsefalsefalsefalsefalseOtherus-types:dateStringItemTypenormalizedstringThe maturity date of the junior subordinated debentures that were purchased using the proceeds from the sale of preferred and common trust securities.No authoritative reference available.falsefalseMaturity date of junior subordinated debentures1The majority of the difference between the investment carrying amount and the underlying equity in net assets is being amortized over the remaining life of the investee's assets.421Investments in Partnerships and Joint Ventures (Details) (USD $)MillionsUnKnownUnKnownUnKnowntruetrue