Income Taxes - Reconciliation Between the Effective Income Tax Rates and the Applicable Statutory Rate (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Effective Income Tax Rate Reconciliation [Line Items]
Statutory federal income tax rate	21.00%	21.00%	21.00%	21.00%
Increases (reductions) resulting from:
State income taxes – net of federal income tax benefit	5.10%	(4.50%)	3.30%	1.50%
Taxes attributable to noncontrolling interests	3.00%	6.80%	3.90%	3.00%
Renewable energy tax credits	(25.50%)	(21.10%)	(21.30%)	(8.70%)
Amortization of deferred regulatory credit	(2.90%)	(5.00%)	(2.70%)	(2.40%)
Other – net	(0.40%)	(1.90%)	(0.80%)	(0.90%)
Effective income tax rate	0.30%	(4.70%)	3.40%	13.50%
Florida Power & Light Company
Effective Income Tax Rate Reconciliation [Line Items]
Statutory federal income tax rate	21.00%	21.00%	21.00%	21.00%
Increases (reductions) resulting from:
State income taxes – net of federal income tax benefit	4.30%	4.40%	4.30%	4.30%
Taxes attributable to noncontrolling interests	0.00%	0.00%	0.00%	0.00%
Renewable energy tax credits	(4.00%)	(2.30%)	(3.90%)	(2.00%)
Amortization of deferred regulatory credit	(2.90%)	(3.30%)	(2.90%)	(3.50%)
Other – net	(0.80%)	(0.30%)	(0.50%)	(0.30%)
Effective income tax rate	17.60%	19.50%	18.00%	19.50%