Income Taxes	3 Months Ended
Mar. 31, 2019
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes NEE's effective income tax rates for the three months ended March 31, 2019 and 2018 were approximately 11% and 25%, respectively. The rates for both periods reflect state income taxes net of federal income tax benefits, the benefits of PTCs of approximately $14 million and $23 million, respectively, related to NEER's wind projects and ITCs of approximately $40 million and $36 million, respectively, related to solar and certain wind projects at NEER. During the three months ended March 31, 2019 and 2018, NEE recorded income tax benefits of $33 million and $29 million related to the amortization of deferred regulatory credits, primarily at FPL. During the three months ended March 31, 2018, NEE recorded an income tax charge of approximately $125 million related to an adjustment to differential membership interests primarily as a result of the change in federal income tax rates effective January 1, 2018. NEE recognizes PTCs as wind energy is generated and sold based on a per 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 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.

Income Taxes

NEE's effective income tax rates for the three months ended March 31, 2019 and 2018 were approximately 11% and 25%, respectively. The rates for both periods reflect state income taxes net of federal income tax benefits, the benefits of PTCs of approximately $14 million and $23 million, respectively, related to NEER's wind projects and ITCs of approximately $40 million and $36 million, respectively, related to solar and certain wind projects at NEER. During the three months ended March 31, 2019 and 2018, NEE recorded income tax benefits of $33 million and $29 million related to the amortization of deferred regulatory credits, primarily at FPL. During the three months ended March 31, 2018, NEE recorded an income tax charge of approximately $125 million related to an adjustment to differential membership interests primarily as a result of the change in federal income tax rates effective January 1, 2018.

NEE recognizes PTCs as wind energy is generated and sold based on a per 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 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.