Variable Interest Entities (VIEs) (Details) $ in Millions	6 Months Ended
	Dec. 31, 2025 MW	Jun. 30, 2025 USD ($) variable_interest_entity basisPoint MW	Dec. 31, 2024 USD ($) variable_interest_entity	Jun. 30, 2024 USD ($)
Variable Interest Entity [Line Items]
Carrying amount of assets, consolidated variable interest entity		$ 198,830.0	$ 190,144.0
TOTAL LIABILITIES		137,898.0	129,283.0
Investment in equity method investees		5,401.0	6,118.0
Other variable interest entities [Member]
Variable Interest Entity [Line Items]
Investments in special purpose entities		$ 6,160.0	$ 5,848.0
Indirect Subsidiary of NextEra Energy Resources [Member] | Photovoltaic Solar Facility [Member]
Variable Interest Entity [Line Items]
Total number of consolidated variable interest entities | variable_interest_entity		6	8
Carrying amount of assets, consolidated variable interest entity		$ 973.0	$ 1,708.0
TOTAL LIABILITIES		$ 436.0	520.0
Solar generating facility capability (in megawatts) | MW		488
Indirect Subsidiary of NextEra Energy Resources [Member] | Photovoltaic Solar Facility [Member] | Minimum
Variable Interest Entity [Line Items]
Ownership percentage		50.00%
Indirect Subsidiary of NextEra Energy Resources [Member] | Photovoltaic Solar Facility [Member] | Maximum
Variable Interest Entity [Line Items]
Ownership percentage		67.00%
NextEra Energy Resources
Variable Interest Entity [Line Items]
Investment in equity method investees				$ 1,700.0
NextEra Energy Resources | Variable Interest Entities Wind and Solar PV Facilities [Member[
Variable Interest Entity [Line Items]
Carrying amount of assets, consolidated variable interest entity		$ 1,334.0	1,346.0
TOTAL LIABILITIES		$ 78.0	$ 76.0
Ownership percentage		10.00%
Wind electric generating facility capability (in megawatts) | MW		400
Solar generating facility capability (in megawatts) | MW		599
NextEra Energy Resources | Variable Interest Entities Wind and Solar Primary Beneficiary [Member] [Member]
Variable Interest Entity [Line Items]
Total number of consolidated variable interest entities | variable_interest_entity		29	30
Carrying amount of assets, consolidated variable interest entity		$ 24,875.0	$ 23,902.0
TOTAL LIABILITIES		$ 916.0	1,546.0
Wind electric generating facility capability (in megawatts) | MW		10,634
Solar generating facility capability (in megawatts) | MW		3,585
Solar Plus Storage Facility Capacity | MW		2,149
NextEra Energy Resources | Variable Interest Entities Wind and Solar Primary Beneficiary [Member] [Member] | Forecast
Variable Interest Entity [Line Items]
Wind electric generating facility capability (in megawatts) | MW	24
Solar Plus Storage Facility Capacity | MW	475
Florida Power & Light Company
Variable Interest Entity [Line Items]
Carrying amount of assets, consolidated variable interest entity		$ 101,805.0	98,141.0
TOTAL LIABILITIES		56,238.0	55,065.0
Florida Power & Light Company | Other variable interest entities [Member]
Variable Interest Entity [Line Items]
Investments in special purpose entities		$ 4,730.0	4,506.0
Subsidiaries of NEE [Member]
Variable Interest Entity [Line Items]
Number of variable interest entities with guarantees to obligations | basisPoint		1
Investment in equity method investees		$ 2,592.0	$ 3,315.0
Commitments To Increase (Decrease) In Equity Method Investments		$ 165.0