Income Taxes - Reconciliation Between the Effective Income Tax Rates and the Applicable Statutory Rate (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
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	1.70%	5.40%	1.30%	1.00%
Taxes attributable to noncontrolling interests	2.60%	15.60%	6.80%	6.90%
PTCs and ITCs	(4.70%)	(38.90%)	(9.40%)	(16.40%)
Amortization of deferred regulatory credit	(2.90%)	(14.10%)	(6.70%)	(6.20%)
Other – net	(0.50%)	1.30%	(1.50%)	(2.00%)
Effective income tax rate	17.20%	(9.70%)	11.50%	4.30%
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	4.50%	2.90%	4.40%	3.70%
Taxes attributable to noncontrolling interests	0.00%	0.00%	0.00%	0.00%
PTCs and ITCs	(1.90%)	(0.70%)	(1.10%)	(0.70%)
Amortization of deferred regulatory credit	(4.10%)	(3.50%)	(4.00%)	(3.50%)
Other – net	0.10%	0.20%	0.10%	0.00%
Effective income tax rate	19.60%	19.90%	20.40%	20.50%