Income Taxes - Reconciliation of Effective Income Tax Rate (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Operating Loss Carryforwards [Line Items]
Income taxes at U.S. statutory rate of 21%	21.00%	21.00%	21.00%
Increases (reductions) resulting from:
State income taxes – net of federal income tax benefit(a)	4.40%	3.70%	1.40%
Taxes attributable to noncontrolling interests	7.00%	4.30%	3.00%
Amortization of deferred regulatory credit	(3.50%)	(2.70%)	(2.50%)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount [Abstract]	(0.30%)	(0.50%)	(0.60%)
Clean energy tax credits	(45.80%)	(19.90%)	(8.30%)
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent	2.10%	0.80%	0.30%
Other adjustments – net	(2.60%)	(1.10%)	(0.50%)
Effective income tax rate (in hundredths)	(17.70%)	5.60%	13.80%
Operating Loss and Tax Credit Carryforwards [Line Items]
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount	$ 951	$ 1,268	$ 1,530
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount	199	223	102
Effective Income Tax Rate Reconciliation, Noncontrolling Interest Income (Loss), Amount	315	260	219
Amortization of deferred regulatory credit	(159)	(163)	(182)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount	(14)	(30)	(44)
Effective Income Tax Rate Reconciliation, Production And Investment Tax Credits, Amount	(2,075)	(1,201)	(605)
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	95	48	22
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount	(114)	(66)	(36)
Total income taxes	$ (802)	$ 339	$ 1,006
FPL
Operating Loss Carryforwards [Line Items]
Income taxes at U.S. statutory rate of 21%	21.00%	21.00%	21.00%
Increases (reductions) resulting from:
State income taxes – net of federal income tax benefit(a)	4.30%	4.30%	4.30%
Amortization of deferred regulatory credit	(2.80%)	(3.00%)	(3.20%)
Clean energy tax credits	(9.10%)	(4.30%)	(2.00%)
Other adjustments – net	(0.90%)	(0.40%)	(0.30%)
Effective income tax rate (in hundredths)	12.50%	17.60%	19.80%
Operating Loss and Tax Credit Carryforwards [Line Items]
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount	$ 1,204	$ 1,158	$ 1,192
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount	246	237	244
Amortization of deferred regulatory credit	(160)	(165)	(182)
Effective Income Tax Rate Reconciliation, Production And Investment Tax Credits, Amount	(522)	(237)	(114)
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount	(49)	(23)	(17)
Total income taxes	$ 719	$ 970	$ 1,123