v3.20.4
Summary of Significant Accounting and Reporting Policies (Additional Information) (Details)
€ in Millions, account in Millions
 1 Months Ended 12 Months Ended 48 Months Ended
Jan. 01, 2023
USD ($)
Oct. 26, 2020
Sep. 14, 2020
Feb. 11, 2020
USD ($)
solar_generation_facility
MW
Apr. 01, 2019
USD ($)
MW
Jan. 01, 2018
USD ($)
Jan. 01, 2017
USD ($)
Jan. 31, 2022
USD ($)
Sep. 30, 2020
USD ($)
customer
Dec. 31, 2025
USD ($)
MW
Dec. 31, 2024
USD ($)
MW
Dec. 31, 2020
USD ($)
facility
account
county
unit
MW
Dec. 31, 2019
USD ($)
solar_generation_facility
wind_generation_facility
MW
Dec. 31, 2018
USD ($)
facility
wind_generation_facility
solar_generation_facility
MW
Dec. 31, 2020
USD ($)
kWh
county
facility
account
MW
Feb. 11, 2020
EUR (€)
Jan. 01, 2020
USD ($)
Basis of Presentation [Abstract]                                  
Number of customer accounts (more than) | account                       5.6     5.6    
Number of counties In which entity operates | county                       8     8    
Stockholders' Equity Note, Stock Split, Conversion Ratio   4 4                            
Noncontrolling Interest [Abstract]                                  
Investment in equity method investees                       $ 5,728,000,000 $ 7,453,000,000 $ 6,748,000,000 $ 5,728,000,000    
Equity Method Investment, Realized Gain (Loss) on Deconsolidation, Before Tax                           3,900,000,000      
Equity Method Investment, Realized Gain (Loss) on Deconsolidation, After Tax                           3,000,000,000.0      
Regulated and Unregulated Operating Revenue [Abstract]                                  
Revenue from contracts with customers                       17,000,000,000.0 17,500,000,000 15,400,000,000      
Electric Plant, Depreciation and Amortization [Abstract]                                  
Convertible ITCs                       791,000,000 824,000,000        
Convertible ITCs included in other receivables                       10,000,000 10,000,000   10,000,000    
Construction Activity [Abstract]                                  
Impairment charges                         72,000,000        
Impairment of long-lived assets, after tax                         54,000,000        
Decommissioning of Nuclear Plants, Dismantlement of Plants and Other Accrued Asset Removal Costs [Abstract]                                  
Asset Retirement Obligation                       3,166,000,000 3,506,000,000 3,135,000,000 3,166,000,000    
Restricted Cash [Abstract]                                  
restricted cash related to margin cash collateral that is netted against derivative assets                       183,000,000 139,000,000   183,000,000    
restricted cash related to margin cash collateral that is netted against derivative liabilities                       136,000,000 (66,000,000)   136,000,000    
Restricted cash                       441,000,000 508,000,000   441,000,000    
Measurement of Credit Losses on Financial Instruments [Abstract]                                  
Retained earnings                       25,363,000,000 25,199,000,000   25,363,000,000    
Income Taxes [Abstract]                                  
Revenue equivalent of the difference in accumulated deferred income taxes computed under accounting rules, as compared to regulatory accounting rules                       $ 3,949,000,000 4,141,000,000   3,949,000,000    
Amortization period                       5 years          
Unrecognized tax benefits that impact annual effective income tax rate                       $ 129,000,000     $ 129,000,000    
Variable Interest Entities [Abstract]                                  
Net Income (Loss) Attributable to Noncontrolling Interest                       $ (550,000,000) (381,000,000) (862,000,000)      
Redeemable noncontrolling interests                         $ 423,000,000        
Leases [Abstract]                                  
Operating Lease, Liability, Statement of Financial Position [Extensible List]                       us-gaap:OtherLiabilities us-gaap:OtherLiabilities   us-gaap:OtherLiabilities    
Disposal of a Business/Assets [Abstract]                                  
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal                       $ 353,000,000 $ 406,000,000 80,000,000      
Sale of Noncontrolling Ownership Interests [Abstract]                                  
Proceeds from Sale of Interest in Partnership Unit                       $ 656,000,000          
Solar Generating Capacity | MW                       100     100    
Solar Plus Storage Facility Capacity | MW                       30     30    
Customer deposits                       $ 474,000,000 499,000,000   $ 474,000,000    
Purchaser Of Facility Terms Not Met                       155,000,000     155,000,000    
Variable Interest Entity, Primary Beneficiary [Member]                                  
Variable Interest Entities [Abstract]                                  
Income (Loss) Attributable to Noncontrolling Interest, before Tax                       497,000,000          
Net Income (Loss) Attributable to Noncontrolling Interest                       373,000,000          
Accounting Standards Update 2016-13 [Member]                                  
Measurement of Credit Losses on Financial Instruments [Abstract]                                  
Retained earnings                                 $ 11,000,000
FPL[Member]                                  
Regulated and Unregulated Operating Revenue [Abstract]                                  
Revenue from contracts with customers                       11,600,000,000 12,100,000,000 $ 11,800,000,000      
Regulated Operations [Abstract]                                  
Number of generation facilities retired during period | facility                           3      
Net book value                       $ 48,933,000,000 45,074,000,000   $ 48,933,000,000    
FPSC rate orders and 2021 Base Rate Proceeding [Abstract]                                  
Increase in base rate revenues         $ 200,000,000 $ 211,000,000 $ 400,000,000                    
Energy Assets, Power Generation Capacity | MW         1,720                        
Renewable energy assets, power generation capacity (mw) | MW                       1,200     1,200    
Regulatory return on common equity (in hundredths)                             10.55%    
Earned regulatory ROE threshold below which retail base rate relief may be sought (in hundredths)                             9.60%    
Earned regulatory ROE threshold above which retail base rate reduction may be sought (in hundredths)                             11.60%    
Time period after filing of a cost recovery petition that future storm restoration costs would be recoverable on an interim basis                             60 days    
Maximum Amount Of Depreciation Reserve That May Be Amortized                             $ 1,000,000,000.0    
Reserve amount remaining under 2012 rate agreement that may be amortized                             250,000,000    
Maximum Storm Surcharge                             4    
Threshold Of Storm Restoration Costs In Any Given Calendar Year At Which Surcharge May Be Increased                             800,000,000    
Threshold Of Storm Restoration Costs In Any Given Calendar Year At Which Surcharge May Be Increased, Amount Above Which May Be Recovered                             $ 400,000,000    
Increment Of Usage In Kwh On Which Storm Surcharge Is Based | kWh                             1,000    
Cost Of Recovery Period                             12 months    
Electric Plant, Depreciation and Amortization [Abstract]                                  
Convertible ITCs                       $ 122,000,000 128,000,000        
Maximum interval between depreciation studies performed and filed with the FPSC (in years)                       four years          
Construction Activity [Abstract]                                  
Threshold of plant in service balance at which AFUDC may be recorded (in hundredths)                       0.50%          
Decommissioning of Nuclear Plants, Dismantlement of Plants and Other Accrued Asset Removal Costs [Abstract]                                  
Maximum interval between nuclear decommissioning studies submitted to the FPSC for approval (in years)                       5 years          
For FPL, number of nuclear units | unit                       4          
FPL's portion of the ultimate costs of nuclear decommissioning                       $ 7,000,000,000.0     $ 7,000,000,000.0    
FPL's Ultimate costs of nuclear decommissioning, in current year dollars                       2,500,000,000     2,500,000,000    
FPL's fund earnings on decommissioning funds                       $ 132,000,000 125,000,000 $ 94,000,000      
Maximum interval between plant dismantlement studies submitted to the FPSC for approval (in years)                       4 years          
Plant Dismantlement Approved Expense Effective January 2017                       $ 26,000,000          
Ultimate Costs Of Plant Dismantlement                       1,200,000,000     1,200,000,000    
Ultimate Costs Of Plant Dismantlement In Current Year Dollars                       541,000,000     541,000,000    
Asset Retirement Obligation                       1,804,000,000 2,268,000,000 $ 2,147,000,000 1,804,000,000    
Restricted Cash [Abstract]                                  
Restricted cash                       76,000,000 118,000,000   76,000,000    
Measurement of Credit Losses on Financial Instruments [Abstract]                                  
Retained earnings                       9,614,000,000 9,174,000,000   9,614,000,000    
Income Taxes [Abstract]                                  
Revenue equivalent of the difference in accumulated deferred income taxes computed under accounting rules, as compared to regulatory accounting rules                       3,567,000,000 3,745,000,000   3,567,000,000    
Accumulated Deferred Investment Tax Credit                       729,000,000 412,000,000   729,000,000    
Deferred income tax benefit associated with convertible ITCs                       38,000,000 40,000,000        
Sale of Noncontrolling Ownership Interests [Abstract]                                  
Customer deposits                       430,000,000 459,000,000   430,000,000    
FPL[Member] | Hurricane Dorian [Member]                                  
Storm Funds Storm Reserves and Storm Cost Recovery Abstract                                  
Storm restoration costs                         239,000,000        
FPL[Member] | Hurricane Isaias and Tropical Storm Eta [Member]                                  
Storm Funds Storm Reserves and Storm Cost Recovery Abstract                                  
Storm restoration costs                       200,000,000     200,000,000    
NEER [Member]                                  
Noncontrolling Interest [Abstract]                                  
Investment in equity method investees                       5,239,000,000 6,876,000,000   5,239,000,000    
Construction Activity [Abstract]                                  
Project development costs of NextEra Energy Resources                       $ 571,000,000 $ 651,000,000   $ 571,000,000    
Deemed capital structure of NextEra Energy Resources (in hundredths)                       70.00%     70.00%    
Wind Electric Generating Facility Capability | MW                         220        
Impairment charges                       $ 1,500,000,000          
Impairment of long-lived assets, after tax                       1,200,000,000          
Decommissioning of Nuclear Plants, Dismantlement of Plants and Other Accrued Asset Removal Costs [Abstract]                                  
Asset Retirement Obligation                       1,232,000,000 $ 1,097,000,000   $ 1,232,000,000    
Ultimate Costs Of Nuclear Decommissioning For Wholly Owned Indirect Subsidiary                       9,500,000,000     9,500,000,000    
Ultimate Costs Of Nuclear Decommissioning In Current Year Dollars For Wholly Owned Indirect Subsidiary                       2,100,000,000     2,100,000,000    
Ultimate costs to dismantle wind and solar facilities                       $ 2,400,000,000          
Effective period for Seabrook's decommissioning funding plan (in years)                       4 years          
Variable Interest Entities [Abstract]                                  
Wind Electric Generating Facility Capability | MW                         220        
NEER [Member] | Variable Interest Entity, Primary Beneficiary [Member]                                  
Construction Activity [Abstract]                                  
Wind Electric Generating Facility Capability | MW                       10,913          
Variable Interest Entities [Abstract]                                  
Wind Electric Generating Facility Capability | MW                       10,913          
Solar generating facility capability | MW                       1,377          
Gulf Power [Member]                                  
Regulated Operations [Abstract]                                  
Regulatory Assets, Coal Generating Assets                       $ 462,000,000     $ 462,000,000    
Gulf Power [Member] | Hurricane Sally [Member]                                  
Storm Funds Storm Reserves and Storm Cost Recovery Abstract                                  
Eligible storm restoration costs                 $ 206,000,000                
Public Utilities, Number Of Customers Impacted By Hurricane | customer                 285,000                
subsidiary of NextEra Energy Resources [Member]                                  
Disposal of a Business/Assets [Abstract]                                  
Total generating facility capacity (mw) | MW                       900          
Sale of Noncontrolling Ownership Interests [Abstract]                                  
Number Of Wind Generation Facilities | facility                       3     3    
Number Solar Generation Facilities | facility                       4     4    
Reduction To Additional Paid In Capital, Gross                       $ 188,000,000     $ 188,000,000    
Reduction To Additional Paid In Capital, Net                       165,000,000     165,000,000    
Other Noncontrolling Interests                       689,000,000     689,000,000    
Customer deposits                       $ 155,000,000     $ 155,000,000    
subsidiary of NextEra Energy Resources [Member] | Third Party [Member]                                  
Sale of Noncontrolling Ownership Interests [Abstract]                                  
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners                       50.00%     50.00%    
subsidiary of NextEra Energy Resources [Member] | subsidiary of NextEra Energy Resources [Member]                                  
Sale of Noncontrolling Ownership Interests [Abstract]                                  
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners                       90.00%     90.00%    
subsidiary of NextEra Energy Resources [Member] | NEP [Member]                                  
Sale of Noncontrolling Ownership Interests [Abstract]                                  
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners                       40.00%     40.00%    
subsidiary of NextEra Energy Resources [Member] | Solar-Plus-Storage Facility [Member]                                  
Sale of Noncontrolling Ownership Interests [Abstract]                                  
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners                       100.00%     100.00%    
Forecast [Member] | FPL[Member]                                  
FPSC rate orders and 2021 Base Rate Proceeding [Abstract]                                  
Increase in base rate revenues $ 615,000,000             $ 1,100,000,000                  
Renewable energy assets, power generation capacity (mw) | MW                   900 900            
Regulatory return on common equity (in hundredths)               11.50%                  
Base Rate Plan Term               4 years                  
Base Rate Adjustments                   $ 140,000,000 $ 140,000,000            
Basis Point Incentive               0.50%                  
Minimum [Member] | FPL[Member]                                  
FPSC rate orders and 2021 Base Rate Proceeding [Abstract]                                  
Regulatory return on common equity (in hundredths)                             9.60%    
Maximum [Member] | FPL[Member]                                  
FPSC rate orders and 2021 Base Rate Proceeding [Abstract]                                  
Regulatory return on common equity (in hundredths)                             11.60%    
Coal Fired Generation Facility [Member]                                  
Regulated Operations [Abstract]                                  
Regulatory assets, net of amortization                       $ 634,000,000 $ 799,000,000   $ 634,000,000    
Coal Fired Generation Facility [Member] | FPL[Member]                                  
Regulated Operations [Abstract]                                  
Regulatory assets, net of amortization                       634,000,000 799,000,000   634,000,000    
Number of coal-fired electric generation facilities | facility                           3      
Regulatory asset, amortization period                           9 years      
Current other assets [Member]                                  
Restricted Cash [Abstract]                                  
Restricted cash, current                       374,000,000 411,000,000   374,000,000    
Current other assets [Member] | FPL[Member]                                  
Restricted Cash [Abstract]                                  
Restricted cash, current                       58,000,000 54,000,000   58,000,000    
NEP [Member]                                  
Noncontrolling Interest [Abstract]                                  
Investment in equity method investees                         4,400,000,000        
Franchise and Gross Receipts Taxes [Member]                                  
Regulated and Unregulated Operating Revenue [Abstract]                                  
Revenue from contracts with customers                       725,000,000 763,000,000 $ 738,000,000      
Franchise and Gross Receipts Taxes [Member] | FPL[Member]                                  
Regulated and Unregulated Operating Revenue [Abstract]                                  
Revenue from contracts with customers                       725,000,000 763,000,000 738,000,000      
Retired Plant [Member]                                  
Regulated Operations [Abstract]                                  
Regulatory assets, net of amortization                       859,000,000 851,000,000   859,000,000    
Retired Plant [Member] | FPL[Member]                                  
Regulated Operations [Abstract]                                  
Regulatory assets, net of amortization                       859,000,000 851,000,000   $ 859,000,000    
Net book value                           883,000,000      
Amount of regulatory assets deferred                           $ 736,000,000      
Regulatory asset, amortization period                           15 years      
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Two solar generation facilities located in Spain [Member]                                  
Disposal of a Business/Assets [Abstract]                                  
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal                       270,000,000          
Disposal Group, Not Discontinued Operation, Gain (Loss) On Disposal, Net Of Tax                       $ 270,000,000          
Disposal Group, Including Discontinued Operation, Other Assets, Current                         440,000,000        
Current other liabilities                         647,000,000        
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Two solar generation facilities located in Spain [Member] | NEER [Member]                                  
Disposal of a Business/Assets [Abstract]                                  
Number Of Generation Facilities Sold | solar_generation_facility       2                          
Total generating facility capacity (mw) | MW       99.8                          
Disposal Group, Including Discontinued Operation, Consideration       $ 121,000,000                       € 111  
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Three Wind Generation Facilities And Three Solar Generation Facilities [Member]                                  
Disposal of a Business/Assets [Abstract]                                  
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal                         341,000,000        
Disposal Group, Not Discontinued Operation, Gain (Loss) On Disposal, Net Of Tax                         259,000,000        
Disposal Group, Including Discontinued Operation, Stockholders' Equity Attributable to Noncontrolling Interest                         $ 118,000,000        
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Three Wind Generation Facilities And Three Solar Generation Facilities [Member] | NEER [Member]                                  
Disposal of a Business/Assets [Abstract]                                  
Total generating facility capacity (mw) | MW                         611        
Disposal Group, Including Discontinued Operation, Consideration                         $ 1,000,000,000.0        
Disposal Group, Including Discontinued Operation, Working Capital                         $ 12,000,000        
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Solar plants [Member] | NEER [Member]                                  
Disposal of a Business/Assets [Abstract]                                  
Number Of Generation Facilities Sold | solar_generation_facility                         3 1      
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Solar plants [Member] | Noncontrolling Interest [Member] | NEER [Member]                                  
Disposal of a Business/Assets [Abstract]                                  
Number Of Generation Facilities Sold | solar_generation_facility                         2        
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | ten wind generation facilities and one solar generation facility [Member] | NEER [Member]                                  
Disposal of a Business/Assets [Abstract]                                  
Total generating facility capacity (mw) | MW                           1,388      
Disposal Group, Including Discontinued Operation, Consideration                           $ 1,300,000,000      
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal                           36,000,000      
Disposal Group, Not Discontinued Operation, Gain (Loss) On Disposal, Net Of Tax                           32,000,000      
Assumption Of Noncontrolling Interest                           $ 941,000,000      
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Wind plants [Member] | NEER [Member]                                  
Disposal of a Business/Assets [Abstract]                                  
Number Of Generation Facilities Sold | wind_generation_facility                         3 10