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falsefalseNet unrealized gains (losses) on securities still held11false0us-gaap_OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTaxus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegated1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefal se3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsefalsefalse7falsefalsefalse00falsefalsefalsefalsefalse8falsefalsefalse00falsefalsefalsefalsefalse9truefalsefalse-21000000-21falsefalsefalsefalsefalse10truefalsefalse-27000000-27falsefalsefalsefalsefals e11falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryReclassification adjustment for unrealized gains or losses realized upon the sale of securities, after tax.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA 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This excludes temporary equity and is sometimes called permanent equity.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A3 -Appendix A Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 4 -Section E Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 falsefalseEnding Balances1In the opinion of NextEra Energy and FPL, all adjustments, which consist of normal recurring accruals necessary to present a fair statement of the amounts shown for such periods, have been made. Results of operations for an interim period generally will not give a true indication of results for the year.2The sum of the quarterly amounts may not equal the total for the year due to rounding.3Includes amounts reclassified into earnings due to discontinuance of cash flow hedges of approximately $3 million (net of $2 million tax benefit) for which the hedged transactions are no longer probable of occurring.4Comprehensive income, which includes net income and other comprehensive income (loss), totaled ap proximately $1,954 million, $1,802 million and $1,512 million for 2010, 2009 and 2008, respectively.5Approximately $4 million of losses, related to derivative instruments, is expected to be reclassified into earnings within the next twelve months as either the hedged fuel is consumed, electricity is sold or principal and/or interest payments are made. Such amount assumes no change in fuel prices, power prices, interest rates or scheduled principal payments.6Approximately $1 million of prior service benefits and approximately $1 million of transition obligations is expected to be reclassified into earnings within the next twelve months.1167Comprehensive Income (Details) (USD $)MillionsUnKnownUnKnownUnKnownfalsetrue