v3.26.3
Summary of Significant Accounting and Reporting Policies - Noncontrolling Interests (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]        
Balances, beginning of period     $ 7,709  
Beginning balance $ 10,610 $ 11,271 10,899 $ 12,866
Net income (loss) attributable to noncontrolling interests 42 (27) (64) (299)
Related party contributions 34   89 5
Distributions, primarily to related parties (49) (44) (85) (86)
Changes in non-economic ownership interests       (309)
Buyout of differential membership investors (39) (27) (181) (75)
Payments to Class B noncontrolling interest investors (34) (33) (67) (71)
Other – net (2) (1) 3 (2)
Buyout of Class B noncontrolling interest investors   (219) (159) (1,150)
Ending balance 10,679 10,977 10,679 10,977
Balances, end of period 7,398   7,398  
Class B Noncontrolling Membership Interests        
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]        
Balances, beginning of period 3,308 3,541 3,384 4,376
Net income (loss) attributable to noncontrolling interests 52 58 159 193
Payments to Class B noncontrolling interest investors (34) (33) (67) (71)
Other – net     (1) (1)
Buyout of Class B noncontrolling interest investors   (221) (149) (1,152)
Balances, end of period 3,326 3,345 3,326 3,345
Differential Membership Interests        
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]        
Balances, beginning of period 2,478 3,086 2,835 3,457
Net income (loss) attributable to noncontrolling interests (119) (136) (431) (524)
Distributions, primarily to related parties 0 0    
Differential membership investment contributions, net of distributions 65 92 119 150
Buyout of differential membership investors (27) (24) (126) (65)
Other – net     0 0
Balances, end of period 2,397 3,018 2,397 3,018
NEE's Indirect Noncontrolling Ownership Interests        
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]        
Balances, beginning of period 571 470 502 549
Net income (loss) attributable to noncontrolling interests 87 35 142 (31)
Other comprehensive income (loss)     1  
Related party contributions 34   89 5
Distributions, primarily to related parties (31) (30) (51) (43)
Differential membership investment contributions, net of distributions 0   0  
Buyout of differential membership investors (6) (1) (28) (5)
Other – net     0 (1)
Buyout of Class B noncontrolling interest investors   (1) 0 (1)
Balances, end of period 655 475 655 475
Other Noncontrolling Ownership Interests(b)        
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]        
Balances, beginning of period 1,016 980 988 1,269
Net income (loss) attributable to noncontrolling interests 22 16 66 63
Distributions, primarily to related parties (18) (14) (34) (43)
Changes in non-economic ownership interests       (309)
Other – net     0 2
Balances, end of period 1,020 982 1,020 982
Noncontrolling Interests        
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]        
Beginning balance 7,373 8,077 7,709 9,651
Net income (loss) attributable to noncontrolling interests 42 (27) (64) (299)
Other comprehensive income (loss)     1  
Related party contributions 34   89 5
Distributions, primarily to related parties (49) (44) (85) (86)
Changes in non-economic ownership interests       (309)
Differential membership investment contributions, net of distributions 65 92 119 150
Buyout of differential membership investors (33) (25) (154) (70)
Payments to Class B noncontrolling interest investors (34) (33) (67) (71)
Other – net     (1) 0
Buyout of Class B noncontrolling interest investors   (220) (149) (1,151)
Ending balance $ 7,398 $ 7,820 $ 7,398 $ 7,820