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Summary of Significant Accounting and Reporting Policies - Additional Information (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended
Apr. 23, 2024
Mar. 31, 2024
Mar. 31, 2023
Dec. 31, 2023
Accounting Policies [Line Items]        
Restricted cash and cash equivalents, current   $ 571   $ 730
restricted cash related to margin cash collateral that is netted against derivative liabilities   616   815
Restricted cash related to margin cash collateral that is netted against derivative assets   (214)   (194)
Supplier finance program, obligation   600   4,700
Allowance for Funds Used During Construction, Equity   56 $ 31  
Florida Power & Light Company        
Accounting Policies [Line Items]        
Tax credits sold   198    
Florida Power & Light Company        
Accounting Policies [Line Items]        
Restricted cash and cash equivalents, current   15   15
Allowance for Funds Used During Construction   65 39  
Allowance for Funds Used During Construction, Equity   53 30  
Florida Power & Light Company | Subsequent Event        
Accounting Policies [Line Items]        
Natural Gas Mid-Course Correction, Value $ 662      
Fuel Mid-Course Correction, Period 8 months      
NextEra Energy Resources        
Accounting Policies [Line Items]        
income associated with differential membership interests   348 339  
Project Development Costs   97 $ 58  
NextEra Energy Resources | Differential Membership Interests        
Accounting Policies [Line Items]        
Noncontrolling Interests associated with Differential Membership Interests   $ 8,870   $ 8,857