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Debt - Narrative (Details) - USD ($) | 1 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2024 | Sep. 30, 2024 | Oct. 15, 2024 | Mar. 31, 2024
NEE Equity Units June 2024 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Amount of equity units sold | $ 2,000,000,000 |  |  |
Stated amount of each equity unit (in dollars per share) | $ 50 |  |  |
Undivided beneficial ownership interest per debenture (in hundredths) | 5.00% |  |  |
Number of shares (subject to antidilution adjustments) if purchased on final settlement date at less than or equal to low range threshold (in shares) |  | 0.6915 |  |
Number of shares (subject to antidilution adjustments) if purchased on the final settlement date at equal to or greater than high range threshold (in shares) |  | 0.5532 |  |
Trading period (in days) over which the market value is determined by reference to the average closing prices of the common stock | 20 days |  |  |
Rate of total annual distributions on equity units (in thousandths) |  | 7.299% |  |
Rate of payments on stock purchase contracts (in thousandths) |  | 2.149% |  |
Interest Rate (as a percent) |  | 5.15% |  |
NEE Equity Units June 2024 | Minimum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Price per share of stock purchase contract (in dollars per share) |  | $ 72.31 |  |
NEE Equity Units June 2024 | Maximum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Price per share of stock purchase contract (in dollars per share) |  | $ 90.38 |  |
NextEra Energy Capital Holdings, Inc. |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Proceeds from Convertible Debt |  | $ 52,000,000 |  |
Exchangeable Senior Notes | NextEra Energy Capital Holdings, Inc. |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Principal amount |  | $ 1,000,000,000 |  | $ 1,000,000,000
Debt Instrument, Convertible, Conversion Ratio |  | 1.46927% |  |
Share Price |  | $ 68.06 |  |
Initial Cap Price |  | $ 83.34 |  |
Interest Rate (as a percent) |  | 3.00% |  |
Senior Secured Limited Recourse Notes | NextEra Energy Resources |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Principal amount |  | $ 363,000,000 |  |
Interest Rate (as a percent) |  | 5.93% |  |
Senior Secured Limited Recourse Notes | NextEra Energy Resources | Subsequent Event |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Principal amount |  |  | $ 633,000,000 |
Interest Rate (as a percent) |  |  | 5.74% |

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