v3.25.4
Debt (Narrative) (Details) - USD ($)
1 Months Ended 12 Months Ended
Sep. 01, 2025
Sep. 01, 2023
Mar. 01, 2023
Oct. 31, 2024
Jun. 30, 2024
Dec. 31, 2025
Feb. 13, 2026
Feb. 10, 2026
Feb. 05, 2026
Aug. 31, 2025
Jun. 30, 2025
Mar. 31, 2025
Dec. 31, 2024
Mar. 31, 2024
Aug. 31, 2023
Debt Instrument [Line Items]                              
Weighted-average interest rate of commercial paper and short-tem borrowings (in hundredths)           4.43%             4.82%    
Line of Credit [Member]                              
Debt Instrument [Line Items]                              
Long-Term Line of Credit           $ 0                  
Line of Credit [Member] | Subsequent Event                              
Debt Instrument [Line Items]                              
Line of credit facility, maximum borrowing capacity, issuance of letters of credit             $ 24,600,000,000                
Debentures [Member] | Subsequent Event                              
Debt Instrument [Line Items]                              
Amount of Debentures Sold               $ 1,300,000,000 $ 1,300,000,000            
Debentures [Member] | Minimum [Member] | Subsequent Event                              
Debt Instrument [Line Items]                              
Interest rate               2.989% 4.40%            
Debentures [Member] | Maximum [Member] | Subsequent Event                              
Debt Instrument [Line Items]                              
Interest rate               3.624% 5.85%            
FPL                              
Debt Instrument [Line Items]                              
Weighted-average interest rate of commercial paper and short-tem borrowings (in hundredths)           3.74%             4.59%    
FPL | Line of Credit [Member]                              
Debt Instrument [Line Items]                              
Long-Term Line of Credit           $ 0                  
FPL | Line of Credit [Member] | Subsequent Event                              
Debt Instrument [Line Items]                              
Line of credit facility, maximum borrowing capacity, issuance of letters of credit             $ 5,600,000,000                
NextEra Energy Capital Holdings, Inc. [Member]                              
Debt Instrument [Line Items]                              
Proceeds from Convertible Debt           $ 52,000,000                  
NEE Equity Units June 2024                              
Debt Instrument [Line Items]                              
Interest rate           5.15%                  
Sale of equity units [Abstract]                              
Amount of equity units sold                     $ 2,000,000,000        
Stated amount of each equity unit (in dollars per share)                     $ 50        
Undivided beneficial ownership interest per debenture (in hundredths)                     5.00%        
Principal amount of each debenture         $ 1,000                    
Number of shares (subject to antidilution adjustments) if purchased on final settlement date at less than or equal to low range threshold (in shares)           0.6934                  
Number of shares (subject to antidilution adjustments) if purchased on the final settlement date at equal to or greater than high range threshold (in shares)           0.5547                  
Trading period (in days) over which the market value is determined by reference to the average closing prices of the common stock         20 days                    
Rate of total annual distributions on equity units (in hundredths)           7.299%                  
Rate of payments on stock purchase contracts (in hundredths)           2.149%                  
NEE Equity Units June 2024 | Minimum [Member]                              
Sale of equity units [Abstract]                              
Price Per Share of Stock Purchase Contract           $ 72.31                  
NEE Equity Units June 2024 | Maximum [Member]                              
Sale of equity units [Abstract]                              
Price Per Share of Stock Purchase Contract           $ 90.38                  
NEE Equity Units October 2024                              
Debt Instrument [Line Items]                              
Interest rate           4.635%                  
Sale of equity units [Abstract]                              
Amount of equity units sold       $ 1,500,000,000                      
Stated amount of each equity unit (in dollars per share)       $ 50                      
Undivided beneficial ownership interest per debenture (in hundredths)       5.00%                      
Principal amount of each debenture       $ 1,000                      
Number of shares (subject to antidilution adjustments) if purchased on final settlement date at less than or equal to low range threshold (in shares)           0.6050                  
Number of shares (subject to antidilution adjustments) if purchased on the final settlement date at equal to or greater than high range threshold (in shares)           0.4841                  
Trading period (in days) over which the market value is determined by reference to the average closing prices of the common stock       20 days                      
Rate of total annual distributions on equity units (in hundredths)           7.234%                  
Rate of payments on stock purchase contracts (in hundredths)           2.599%                  
NEE Equity Units October 2024 | Minimum [Member]                              
Sale of equity units [Abstract]                              
Price Per Share of Stock Purchase Contract           $ 82.87                  
NEE Equity Units October 2024 | Maximum [Member]                              
Sale of equity units [Abstract]                              
Price Per Share of Stock Purchase Contract           103.58                  
Series K Debentures due 2025 | NextEra Energy Capital Holdings, Inc. [Member] | Debentures [Member]                              
Debt Instrument [Line Items]                              
Debt instrument, face amount                           $ 2,500,000,000  
Interest rate                           6.051%  
Series L Debenture due 2025 | NextEra Energy Capital Holdings, Inc. [Member] | Debentures [Member]                              
Debt Instrument [Line Items]                              
Debt instrument, face amount                   $ 2,000,000,000         $ 2,000,000,000
Interest rate                   4.685%         5.749%
Exchangeable Senior Notes | NextEra Energy Capital Holdings, Inc. [Member]                              
Debt Instrument [Line Items]                              
Debt instrument, face amount                       $ 1,000,000,000.0      
Share Price           $ 68.06                  
Initial Cap Price           $ 83.34                  
Debt Instrument, Convertible, Conversion Ratio           1.46927%                  
NEE Equity Units February 2020 [Member]                              
Debt Instrument [Line Items]                              
Sale of Stock, Number of Shares Issued in Transaction     33,400,000                        
Sale of Stock, Consideration Received on Transaction     $ 2,500,000,000                        
NEE Equity Units September 2020 [Member]                              
Debt Instrument [Line Items]                              
Sale of Stock, Number of Shares Issued in Transaction 22,800,000 27,300,000                          
Sale of Stock, Consideration Received on Transaction $ 2,000,000,000 $ 2,000,000,000