Income Taxes - Reconciliation Between the Effective Income Tax Rates and the Applicable Statutory Rate (Details)	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Effective Income Tax Rate Reconciliation [Line Items]
Statutory federal income tax rate	21.00%	21.00%
Increases (reductions) resulting from:
State income taxes – net of federal income tax benefit	(29.60%)	1.50%
Taxes attributable to noncontrolling interests	(136.50%)	3.40%
Renewable energy tax credits	947.20%	(11.70%)
Amortization of deferred regulatory credit	75.80%	(1.90%)
Other – net	36.10%	(1.80%)
Effective income tax rate	914.00%	10.50%
Florida Power & Light Company
Effective Income Tax Rate Reconciliation [Line Items]
Statutory federal income tax rate	21.00%	21.00%
Increases (reductions) resulting from:
State income taxes – net of federal income tax benefit	4.30%	4.30%
Taxes attributable to noncontrolling interests	0.00%	0.00%
Renewable energy tax credits	(8.20%)	(2.70%)
Amortization of deferred regulatory credit	(2.80%)	(2.90%)
Other – net	(0.30%)	(0.50%)
Effective income tax rate	14.00%	19.20%