v3.26.1
Non-Derivative Fair Value Measurements (Assets and Liabilities Measured on a Recurring Basis) (Details) - Fair value measurements made on a recurring basis [Member] - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Cash equivalents:    
Equity securities $ 1,415 $ 1,873
Special use funds:    
Equity securities 7,709 7,007
U.S. Government and municipal bonds 821 786
Corporate debt securities 719 732
Asset-backed securities 872 918
Other debt securities 23 17
Other investments:    
Equity Securities 114 131
U.S. Government and Municipal Bonds 15 34
Corporate Debt Securities 1,347 1,419
Other Debt Securities 463 292
Level 1    
Fair Value, Assets and Liabilities Measured on Recurring [Line Items]    
Restricted cash 38 39
Cash equivalents:    
Equity securities 1,415 1,873
Special use funds:    
Equity securities 3,255 2,948
U.S. Government and municipal bonds 790 721
Corporate debt securities 5 10
Asset-backed securities 0 0
Other debt securities 1 0
Other investments:    
Equity Securities 54 49
U.S. Government and Municipal Bonds 15 33
Corporate Debt Securities 0 0
Other Debt Securities 0 0
Level 2    
Cash equivalents:    
Equity securities 0 0
Special use funds:    
Equity securities 4,229 3,828
U.S. Government and municipal bonds 31 65
Corporate debt securities 714 722
Asset-backed securities 872 918
Other debt securities 22 17
Other investments:    
Equity Securities 0 0
U.S. Government and Municipal Bonds 0 1
Corporate Debt Securities 1,343 1,299
Other Debt Securities 395 264
Level 3    
Cash equivalents:    
Equity securities 0 0
Special use funds:    
Equity securities 225 231
U.S. Government and municipal bonds 0 0
Corporate debt securities 0 0
Asset-backed securities 0 0
Other debt securities 0 0
Other investments:    
Equity Securities 60 82
U.S. Government and Municipal Bonds 0 0
Corporate Debt Securities 4 120
Other Debt Securities 68 28
Florida Power & Light Company    
Cash equivalents:    
Equity securities 39 40
Special use funds:    
Equity securities 5,326 4,840
U.S. Government and municipal bonds 664 628
Corporate debt securities 531 550
Asset-backed securities 672 697
Other debt securities 17 10
Other investments:    
Equity Securities 6 7
Florida Power & Light Company | Level 1    
Fair Value, Assets and Liabilities Measured on Recurring [Line Items]    
Restricted cash 37 37
Cash equivalents:    
Equity securities 39 40
Special use funds:    
Equity securities 1,271 1,148
U.S. Government and municipal bonds 640 588
Corporate debt securities 5 11
Asset-backed securities 0 0
Other debt securities 1 0
Other investments:    
Equity Securities 6 7
Florida Power & Light Company | Level 2    
Cash equivalents:    
Equity securities 0 0
Special use funds:    
Equity securities 3,855 3,486
U.S. Government and municipal bonds 24 40
Corporate debt securities 526 539
Asset-backed securities 672 697
Other debt securities 16 10
Other investments:    
Equity Securities 0 0
Florida Power & Light Company | Level 3    
Cash equivalents:    
Equity securities 0 0
Special use funds:    
Equity securities 200 206
U.S. Government and municipal bonds 0 0
Corporate debt securities 0 0
Asset-backed securities 0 0
Other debt securities 0 0
Other investments:    
Equity Securities $ 0 $ 0