Debt - Long-term Debt Issuances and Borrowings (Details)	Mar. 31, 2025 USD ($)
Florida Power & Light Company | First mortgage bonds
Debt Instrument [Line Items]
Principal amount	$ 2,000,000,000
Florida Power & Light Company | First mortgage bonds | Minimum
Debt Instrument [Line Items]
Interest Rate (as a percent)	5.30%
Florida Power & Light Company | First mortgage bonds | Maximum
Debt Instrument [Line Items]
Interest Rate (as a percent)	5.80%
NextEra Energy Capital Holdings, Inc. | Debentures – fixed
Debt Instrument [Line Items]
Principal amount	$ 4,500,000,000
NextEra Energy Capital Holdings, Inc. | Debentures – fixed | Minimum
Debt Instrument [Line Items]
Interest Rate (as a percent)	4.85%
NextEra Energy Capital Holdings, Inc. | Debentures – fixed | Maximum
Debt Instrument [Line Items]
Interest Rate (as a percent)	5.90%
NextEra Energy Capital Holdings, Inc. | Debentures variable
Debt Instrument [Line Items]
Principal amount	$ 500,000,000
NextEra Energy Capital Holdings, Inc. | Junior Subordinated Debt
Debt Instrument [Line Items]
Principal amount	$ 2,500,000,000
NextEra Energy Capital Holdings, Inc. | Junior Subordinated Debt | Minimum
Debt Instrument [Line Items]
Interest Rate (as a percent)	6.38%
NextEra Energy Capital Holdings, Inc. | Junior Subordinated Debt | Maximum
Debt Instrument [Line Items]
Interest Rate (as a percent)	6.50%