Income Taxes - Reconciliation Between the Effective Income Tax Rates and the Applicable Statutory Rate (Details)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
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	3.20%	5.70%
Taxes attributable to noncontrolling interests	3.30%	(4.70%)
PTCs and ITCs	(6.10%)	6.20%
Amortization of deferred regulatory credit	(2.10%)	4.70%
Other – net	(1.50%)	1.20%
Effective income tax rate	17.80%	34.10%
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	4.20%	4.30%
Taxes attributable to noncontrolling interests	0.00%	0.00%
PTCs and ITCs	(1.60%)	0.00%
Amortization of deferred regulatory credit	(3.50%)	(4.00%)
Other – net	(0.40%)	(0.60%)
Effective income tax rate	19.70%	20.70%