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Summary of Significant Accounting and Reporting Policies (FPL Base Rate Agreements) (Details) - FPL [Member]
12 Months Ended 48 Months Ended 60 Months Ended
Jan. 01, 2023
USD ($)
Jan. 01, 2022
USD ($)
Apr. 01, 2019
USD ($)
MW
Jan. 01, 2018
USD ($)
Jan. 01, 2017
USD ($)
Dec. 31, 2025
MW
Dec. 31, 2024
MW
Dec. 31, 2022
USD ($)
Dec. 31, 2025
USD ($)
kWh
$ / kW
MW
Dec. 31, 2021
USD ($)
Dec. 31, 2020
MW
Accounting Policies [Line Items]                      
Increase in base rate revenues     $ 200,000,000 $ 211,000,000 $ 400,000,000            
Regulatory return on common equity                   10.55%  
Earned regulatory ROE threshold below which retail base rate relief may be sought                   9.60%  
Earned regulatory ROE threshold above which retail base rate reduction may be sought                   11.60%  
Energy Assets, Power Generation Capacity | MW     1,720                
Renewable energy assets, power generation capacity (mw) | MW                     1,200
The maximum amount by which depreciation expense could be reduced (reserve)                   $ 1,250,000,000  
Forecast [Member]                      
Accounting Policies [Line Items]                      
Increase in base rate revenues $ 560,000,000 $ 692,000,000                  
SoBRA MW additions capacity | MW           894 894        
SoBRA base rate revenue installed solar cap cost per unit of power | $ / kW                 1,250    
Regulatory return on common equity                 10.60%    
Earned regulatory ROE threshold below which retail base rate relief may be sought                 9.70%    
Earned regulatory ROE threshold above which retail base rate reduction may be sought                 11.70%    
Contingent ROE, treasury rate, thirty year average threshold                 2.49%    
Contingent ROE, consecutive term                 6 months    
Contingent return on common equity                 10.80%    
Contingent earned regulatory ROE threshold below which retail base rate relief may be sought                 9.80%    
Contingent earned regulatory ROE threshold above which retail base rate reduction may be sought                 11.80%    
Maximum amount of depreciation reserve that may be amortized               $ 200,000,000 $ 1,450,000,000    
SolarTogether MW additions capacity | MW                 1,788    
SolarTogether MW total capacity | MW           3,278          
Time period after filing of a cost recovery petition that future storm restoration costs would be recoverable on an interim basis                 60 days    
Maximum storm surcharge                 $ 4    
Increment of usage in Kwh on which storm surcharge is based | kWh                 1,000    
Cost of recovery, period                 12 months    
Threshold of storm restoration costs in any given calendar year at which surcharge may be increased                 $ 800,000,000