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Summary of Significant Accounting and Reporting Policies - Property, Plant and Equiptment (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Property, Plant and Equipment [Line Items] |  |  |  |  |
Electric plant in service and other property | $ 163,791 |  | $ 163,791 |  | $ 151,677
Nuclear fuel | 1,822 |  | 1,822 |  | 1,676
Construction work in progress | 23,320 |  | 23,320 |  | 21,658
Property, plant and equipment, gross | 188,933 |  | 188,933 |  | 175,011
Accumulated depreciation and amortization | (38,890) |  | (38,890) |  | (36,159)
Property, plant and equipment – net | 150,043 |  | 150,043 |  | 138,852
Allowance for Funds Used During Construction, Equity | 48 | $ 50 | 130 | $ 147 |
Florida Power & Light Company |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Electric plant in service and other property | 92,507 |  | 92,507 |  | 87,596
Nuclear fuel | 1,149 |  | 1,149 |  | 1,140
Construction work in progress | 7,795 |  | 7,795 |  | 7,214
Property, plant and equipment, gross | 101,451 |  | 101,451 |  | 95,950
Accumulated depreciation and amortization | (20,932) |  | (20,932) |  | (19,784)
Electric utility plant and other property – net | 80,519 |  | 80,519 |  | $ 76,166
Allowance for Funds Used During Construction | 60 | 69 | 159 | 180 |
Allowance for Funds Used During Construction, Equity | 46 | 49 | 123 | 139 |
NextEra Energy Resources |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Project Development Costs | $ 179 | $ 134 | $ 477 | $ 344 |

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- Definition For NextEra Energy Resources, the amount of project development costs capitalized as of the balance sheet date. These costs include land rights and other third-party costs directly associated with the development of a new project. Upon commencement of construction, these costs either are transferred to construction work in progress or remain in other assets, depending upon the nature of the cost. Capitalized development costs are charged to OM expenses when recoverability is no longer probable. + References No definition available. + Details
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