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
Mar. 31, 2026
Dec. 31, 2025
Cash equivalents:    
Equity securities $ 921 $ 1,873
Special use funds:    
Equity securities 6,856 7,007
U.S. Government and municipal bonds 773 786
Corporate debt securities 676 732
Asset-backed securities 874 918
Other debt securities 19 17
Other investments:    
Equity Securities 116 131
U.S. Government and Municipal Bonds 15 34
Corporate Debt Securities 1,350 1,419
Other Debt Securities 302 292
Level 1    
Fair Value, Assets and Liabilities Measured on Recurring [Line Items]    
Restricted cash 39 39
Cash equivalents:    
Equity securities 921 1,873
Special use funds:    
Equity securities 2,951 2,948
U.S. Government and municipal bonds 709 721
Corporate debt securities 6 10
Asset-backed securities 0 0
Other debt securities 0 0
Other investments:    
Equity Securities 48 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 3,676 3,828
U.S. Government and municipal bonds 64 65
Corporate debt securities 670 722
Asset-backed securities 874 918
Other debt securities 19 17
Other investments:    
Equity Securities 0 0
U.S. Government and Municipal Bonds 0 1
Corporate Debt Securities 1,345 1,299
Other Debt Securities 257 264
Level 3    
Cash equivalents:    
Equity securities 0 0
Special use funds:    
Equity securities 229 231
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 68 82
U.S. Government and Municipal Bonds 0 0
Corporate Debt Securities 5 120
Other Debt Securities 45 28
Florida Power & Light Company    
Cash equivalents:    
Equity securities 39 40
Special use funds:    
Equity securities 4,748 4,840
U.S. Government and municipal bonds 624 628
Corporate debt securities 490 550
Asset-backed securities 668 697
Other debt securities 13 10
Other investments:    
Equity Securities 8 7
Florida Power & Light Company | Level 1    
Fair Value, Assets and Liabilities Measured on Recurring [Line Items]    
Restricted cash 38 37
Cash equivalents:    
Equity securities 39 40
Special use funds:    
Equity securities 1,196 1,148
U.S. Government and municipal bonds 585 588
Corporate debt securities 6 11
Asset-backed securities 0 0
Other debt securities 0 0
Other investments:    
Equity Securities 8 7
Florida Power & Light Company | Level 2    
Cash equivalents:    
Equity securities 0 0
Special use funds:    
Equity securities 3,348 3,486
U.S. Government and municipal bonds 39 40
Corporate debt securities 484 539
Asset-backed securities 668 697
Other debt securities 13 10
Other investments:    
Equity Securities 0 0
Florida Power & Light Company | Level 3    
Cash equivalents:    
Equity securities 0 0
Special use funds:    
Equity securities 204 206
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