v3.26.1
Equity (Earnings Per Share) (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Reconciliation of basic and diluted earnings per share of common stock [Abstract]    
Net income attributable to NEE - basic $ 2,182 $ 833
Denominator:    
Weighted-average number of common shares outstanding – basic 2,082.5 2,055.5
Equity units, stock options, performance share awards, restricted stock and exchangeable notes 9.9 5.2
Weighted-average number of common shares outstanding – assuming dilution 2,092.4 2,060.7
Earnings per share attributable to NEE:    
Basic (in dollars per share) $ 1.05 $ 0.41
Assuming dilution (in dollars per share) $ 1.04 $ 0.40