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Income Taxes (Tables)
9 Months Ended
Sep. 30, 2023
Income Tax Disclosure [Abstract]  
Reconciliation Between the Effective Income Tax Rates and the Applicable Statutory Rate
A reconciliation between the effective income tax rates and the applicable statutory rate is as follows:
 NEEFPLNEEFPL
 Three Months Ended September 30,Three Months Ended September 30,Nine Months Ended September 30,Nine Months Ended September 30,
 20232022202320222023202220232022
Statutory federal income tax rate21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %
Increases (reductions) resulting from:
State income taxes – net of federal income tax benefit
(4.5)1.7 4.4 4.5 1.5 1.3 4.3 4.4 
Taxes attributable to noncontrolling interests
6.8 2.6  — 3.0 6.8  — 
PTCs and ITCs
(21.1)(4.7)(2.3)(1.9)(8.7)(9.4)(2.0)(1.1)
Amortization of deferred regulatory credit(5.0)(2.9)(3.3)(4.1)(2.4)(6.7)(3.5)(4.0)
Other – net
(1.9)(0.5)(0.3)0.1 (0.9)(1.5)(0.3)0.1 
Effective income tax rate(4.7)%17.2 %19.5 %19.6 %13.5 %11.5 %19.5 %20.4 %