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v3.23.2

Non-Derivative Fair Value Measurements (Gains and Losses on Available-for-sale Debt Securities) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Dec. 31, 2022
Debt Securities [Member] |  |  |  |  |
Marketable Securities, Available-for-sale [Line Items] |  |  |  |  |
Realized Gains | $ 10 | $ 10 | $ 18 | $ 18 |
Realized Losses | 39 | 33 | 76 | 59 |
Proceeds from sale or maturity of securities | 592 | 498 | 1,020 | 1,220 |
Available for sale securities: Special Use Funds - Debt Securities [Member] |  |  |  |  |
Marketable Securities, Available-for-sale [Line Items] |  |  |  |  |
Unrealized gains | 7 |  | 7 |  | $ 4
Unrealized losses | 221 |  | 221 |  | 285
Fair value | 2,735 |  | 2,735 |  | 2,315
Florida Power & Light Company | Debt Securities [Member] |  |  |  |  |
Marketable Securities, Available-for-sale [Line Items] |  |  |  |  |
Realized Gains | 9 | 7 | 15 | 14 |
Realized Losses | 32 | 24 | 62 | 43 |
Proceeds from sale or maturity of securities | 442 | $ 259 | 740 | $ 677 |
Florida Power & Light Company | Available for sale securities: Special Use Funds - Debt Securities [Member] |  |  |  |  |
Marketable Securities, Available-for-sale [Line Items] |  |  |  |  |
Unrealized gains | 5 |  | 5 |  | 3
Unrealized losses | 137 |  | 137 |  | 193
Fair value | $ 1,408 |  | $ 1,408 |  | $ 1,466

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