Income Taxes	3 Months Ended
Mar. 31, 2014
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes NEE's effective income tax rates for the three months ended March 31, 2014 and 2013 were approximately 26% and 78%, respectively. The rate for the three months ended March 31, 2013 reflects the establishment of a full valuation allowance of approximately $132 million on the deferred tax assets associated with the Spain solar projects. This valuation allowance primarily related to deferred tax assets created as a result of the $300 million impairment and other related charges ($342 million after-tax) recorded for the three months ended March 31, 2013 (see Note 3 - Nonrecurring Fair Value Measurements). In addition, the rates for both periods reflect the benefit of wind production tax credits (PTCs) of approximately $49 million and $59 million, respectively, related to NEER's wind projects and deferred income tax benefits associated with grants (convertible investment tax credits (ITCs)) under the American Recovery and Reinvestment Act of 2009, as amended (Recovery Act), of approximately $12 million and $13 million, respectively, primarily for certain wind and solar projects expected to be placed in service. NEE recognizes PTCs as wind energy is generated and sold based on a per kilowatt-hour (kWh) rate prescribed in applicable federal and state statutes, which may differ significantly from amounts computed, on a quarterly basis, using an overall effective income tax rate anticipated for the full year. NEE uses this method of recognizing PTCs for specific reasons, including that PTCs are an integral part of the financial viability of most wind projects and a fundamental component of such wind projects' results of operations. PTCs, as well as deferred income tax benefits associated with convertible ITCs, can significantly affect NEE's effective income tax rate depending on the amount of pretax income. The amount of PTCs recognized can be significantly affected by wind generation and by the roll off of PTCs after ten years of production (PTC roll off).

Income Taxes

3 Months Ended

Mar. 31, 2014

NEE's effective income tax rates for the three months ended March 31, 2014 and 2013 were approximately 26% and 78%, respectively. The rate for the three months ended March 31, 2013 reflects the establishment of a full valuation allowance of approximately $132 million on the deferred tax assets associated with the Spain solar projects. This valuation allowance primarily related to deferred tax assets created as a result of the $300 million impairment and other related charges ($342 million after-tax) recorded for the three months ended March 31, 2013 (see Note 3 - Nonrecurring Fair Value Measurements). In addition, the rates for both periods reflect the benefit of wind production tax credits (PTCs) of approximately $49 million and $59 million, respectively, related to NEER's wind projects and deferred income tax benefits associated with grants (convertible investment tax credits (ITCs)) under the American Recovery and Reinvestment Act of 2009, as amended (Recovery Act), of approximately $12 million and $13 million, respectively, primarily for certain wind and solar projects expected to be placed in service.

NEE recognizes PTCs as wind energy is generated and sold based on a per kilowatt-hour (kWh) rate prescribed in applicable federal and state statutes, which may differ significantly from amounts computed, on a quarterly basis, using an overall effective income tax rate anticipated for the full year. NEE uses this method of recognizing PTCs for specific reasons, including that PTCs are an integral part of the financial viability of most wind projects and a fundamental component of such wind projects' results of operations. PTCs, as well as deferred income tax benefits associated with convertible ITCs, can significantly affect NEE's effective income tax rate depending on the amount of pretax income. The amount of PTCs recognized can be significantly affected by wind generation and by the roll off of PTCs after ten years of production (PTC roll off).