Debt - Long-term Debt Issuances and Borrowings (Details)	9 Months Ended
Sep. 30, 2023 USD ($)
Florida Power & Light Company \| First mortgage bonds
Debt Instrument [Line Items]
Principal amount	$ 4,500,000,000
Florida Power & Light Company \| First mortgage bonds \| Minimum
Debt Instrument [Line Items]
Interest Rate (as a percent)	4.40%
Florida Power & Light Company \| First mortgage bonds \| Maximum
Debt Instrument [Line Items]
Interest Rate (as a percent)	5.30%
Florida Power & Light Company \| Senior Unsecured Notes Maturing 2026
Debt Instrument [Line Items]
Principal amount	$ 500,000,000
Interest Rate (as a percent)	4.45%
Florida Power & Light Company \| Senior Unsecured Notes Maturing 2073
Debt Instrument [Line Items]
Principal amount	$ 486,000,000
Interest Rate Terms	Variable
NextEra Energy Capital Holdings, Inc. \| Debentures
Debt Instrument [Line Items]
Principal amount	$ 4,000,000,000
NextEra Energy Capital Holdings, Inc. \| Debentures \| Minimum
Debt Instrument [Line Items]
Interest Rate (as a percent)	4.90%
NextEra Energy Capital Holdings, Inc. \| Debentures \| Maximum
Debt Instrument [Line Items]
Interest Rate (as a percent)	5.25%
NextEra Energy Transmission, LLC Subsidiary [Member] \| Long-Term Debt \| NEER Segment
Debt Instrument [Line Items]
Principal amount	$ 317,000,000
Interest Rate (as a percent)	4.86%

Face (par) amount of debt instrument at time of issuance.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets.

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- Definition

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