Summary of Significant Accounting and Reporting Policies - Income Taxes (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Summary of Significant Accounting Policies [Line Items] | ||
| Revenue Equivalent Of Difference In Accumulated Deferred Income Taxes Computer Under Accounting Rules Versus Regulatory Rules | $ 2,702 | $ 2,916 |
| Proceeds From Sale Of Renewable Energy Tax Credits | $ 1,527 | 1,304 |
| Amortization period | 5 years | |
| Unrecognized tax benefits that impact annual effective income tax rate | $ 143 | |
| FPL | ||
| Summary of Significant Accounting Policies [Line Items] | ||
| Revenue Equivalent Of Difference In Accumulated Deferred Income Taxes Computer Under Accounting Rules Versus Regulatory Rules | 2,665 | 2,880 |
| Accumulated Deferred Investment Tax Credit | 1,079 | 966 |
| Proceeds From Sale Of Renewable Energy Tax Credits | $ 180 | $ 0 |