v3.25.4
Non-Derivative Fair Value Measurements (Assets and Liabilities Measured on a Recurring Basis) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2025
Other Investments [Abstract]      
Restricted Cash and Cash Equivalent, Statement of Financial Position [Extensible Enumeration] Other   Other
Noncontrolling Interest [Member]      
Other Investments [Abstract]      
Disposal of subsidiaries with noncontrolling interests [1] $ (846) $ (165)  
Fair Value, Recurring [Member]      
Assets [Abstract]      
Cash equivalents and restricted cash - equity securities 677   $ 1,873
Special use funds [Abstract]      
Equity securities 6,164   7,007
U.S. Government and municipal bonds 722   786
Corporate debt securities 685   732
Asset-backed securities 873   918
Other debt securities 14   17
Other Investments [Abstract]      
Equity securities 49   131
U.S. Government and municipal bonds 161   34
Corporate debt securities 869   1,419
Debt securities 348   292
Level 1 | Fair Value, Recurring [Member]      
Assets [Abstract]      
Cash equivalents and restricted cash - equity securities 677   1,873
Restricted cash 109   39
Special use funds [Abstract]      
Equity securities 2,614   2,948
U.S. Government and municipal bonds 663   721
Corporate debt securities 5   10
Asset-backed securities 0   0
Other debt securities 0   0
Other Investments [Abstract]      
Equity securities 48   49
U.S. Government and municipal bonds 158   33
Corporate debt securities 0   0
Debt securities 0   0
Level 2 | Fair Value, Recurring [Member]      
Assets [Abstract]      
Cash equivalents and restricted cash - equity securities 0   0
Special use funds [Abstract]      
Equity securities 3,321   3,828
U.S. Government and municipal bonds 59   65
Corporate debt securities 680   722
Asset-backed securities 873   918
Other debt securities 14   17
Other Investments [Abstract]      
Equity securities 1   0
U.S. Government and municipal bonds 3   1
Corporate debt securities 758   1,299
Debt securities 295   264
Level 3 | Fair Value, Recurring [Member]      
Assets [Abstract]      
Cash equivalents and restricted cash - equity securities 0   0
Special use funds [Abstract]      
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 [Abstract]      
Equity securities 0   82
U.S. Government and municipal bonds 0   0
Corporate debt securities 111   120
Debt securities $ 53   $ 28
FPL      
Other Investments [Abstract]      
Restricted Cash and Cash Equivalent, Statement of Financial Position [Extensible Enumeration] Other   Other
FPL | Fair Value, Recurring [Member]      
Assets [Abstract]      
Cash equivalents and restricted cash - equity securities $ 101   $ 40
Special use funds [Abstract]      
Equity securities 4,219   4,840
U.S. Government and municipal bonds 561   628
Corporate debt securities 510   550
Asset-backed securities 660   697
Other debt securities 10   10
Other Investments [Abstract]      
Equity securities 8   7
FPL | Level 1 | Fair Value, Recurring [Member]      
Assets [Abstract]      
Cash equivalents and restricted cash - equity securities 101   40
Restricted cash 101   37
Special use funds [Abstract]      
Equity securities 1,028   1,148
U.S. Government and municipal bonds 522   588
Corporate debt securities 4   11
Asset-backed securities 0   0
Other debt securities 0   0
Other Investments [Abstract]      
Equity securities 8   7
FPL | Level 2 | Fair Value, Recurring [Member]      
Assets [Abstract]      
Cash equivalents and restricted cash - equity securities 0   0
Special use funds [Abstract]      
Equity securities 2,987   3,486
U.S. Government and municipal bonds 39   40
Corporate debt securities 506   539
Asset-backed securities 660   697
Other debt securities 10   10
Other Investments [Abstract]      
Equity securities 0   0
FPL | Level 3 | Fair Value, Recurring [Member]      
Assets [Abstract]      
Cash equivalents and restricted cash - equity securities 0   0
Special use funds [Abstract]      
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 [Abstract]      
Equity securities $ 0   $ 0
[1] See Note 1 – Disposal of Businesses.