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Summary of Significant Accounting and Reporting Policies - Additional Information (Details) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended				36 Months Ended	48 Months Ended
	Jun. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)	Dec. 31, 2029 kW MW	Dec. 31, 2028 kW MW	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2029 USD ($)	Dec. 31, 2029 USD ($)	Jul. 23, 2025 USD ($)
Accounting Policies [Line Items]
Restricted cash and cash equivalents, current	$ 254.0		$ 254.0					$ 159.0
Cash Received, Derivative, Exchange Traded								(244.0)
Restricted Cash								(85.0)
Restricted cash related to margin cash collateral that is netted against derivative assets								(279.0)
restricted cash related to margin cash collateral that is netted against derivative liabilities	87.0		87.0
Supplier finance program, obligation	1,100.0		1,100.0					4,000.0
Gain in connection with sale	18.0	$ 29.0	54.0	$ 87.0
Investment in equity method investees	5,401.0		5,401.0					6,118.0
Distributions of earnings from equity method investees			181.0	322.0
Florida Power & Light Company
Accounting Policies [Line Items]
Tax credits sold			310.0	511.0
Florida Power & Light Company
Accounting Policies [Line Items]
Restricted cash and cash equivalents, current	40.0		40.0					101.0
Unpaid Storm Restoration Costs	137.0							557.0
Florida Power & Light Company \| Forecast
Accounting Policies [Line Items]
Recoverable storm restoration costs							$ 1,200.0
Regulatory Asset, Amortization Period							12 months
Florida Power & Light Company \| Forecast \| 2026 Rate Agreement
Accounting Policies [Line Items]
Base Rate Proceeding, Rate Plan, Duration										4 years
General Base Revenue Requirement Increase (Decrease)									$ 927.0	$ 1,545.0
Solar and Battery Base Rate Adjustment - Solar MW Additions Capacity \| MW					1,788	1,490
Solar and Battery Base Rate Adjustment - Battery MW Additions Capacity \| kW					596	596
Regulatory Return On Common Equity, Midpoint										0.1190
NextEra Energy Resources
Accounting Policies [Line Items]
income associated with differential membership interests	417.0	357.0	811.0	705.0
Investment in equity method investees		$ 1,700.0		$ 1,700.0
NextEra Energy Resources \| Differential Membership Interests
Accounting Policies [Line Items]
Noncontrolling Interests associated with Differential Membership Interests	$ (8,759.0)		$ (8,759.0)					$ (9,062.0)
Subsidiary of NextEra Energy Resources \| Forecast \| Rate-Regulated Transmission [Member] \| Cash and Cash Equivalents \| Disposed of by Sale [Member]
Accounting Policies [Line Items]
Purchase price											$ 270.0
Subsidiary of NextEra Energy Resources \| Rate-Regulated Transmission Asset Joint Venture \| Subsequent Event \| Rate-Regulated Transmission [Member] \| Disposed of by Sale [Member]
Accounting Policies [Line Items]
Equity method investment, percentage sold											50.00%
Subsidiary of NextEra Energy Resources \| Rate-Regulated Transmission Asset Joint Venture \| Subsequent Event \| Rate-Regulated Transmission [Member] \| Disposed of by Sale [Member] \| Rate-Regulated Transmission Asset Joint Venture
Accounting Policies [Line Items]
Equity method investment, ownership percentage											50.00%