Debt - Long-term Debt Issuances and Borrowings (Details)	Mar. 31, 2023 USD ($)
Florida Power & Light Company | First mortgage bonds
Debt Instrument [Line Items]
Principal amount	$ 2,500,000,000
Florida Power & Light Company | First mortgage bonds | Minimum
Debt Instrument [Line Items]
Interest Rate (as a percent)	5.05%
Florida Power & Light Company | First mortgage bonds | Maximum
Debt Instrument [Line Items]
Interest Rate (as a percent)	5.30%
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%