Variable Interest Entities (VIEs) (Details) $ in Millions	3 Months Ended	9 Months Ended
	Mar. 31, 2023 USD ($) variable_interest_entity mi MW	Dec. 31, 2023 MW	Dec. 31, 2022 USD ($)
Variable Interest Entity [Line Items]
Carrying amount of assets, consolidated variable interest entity	$ 165,357		$ 158,935
Carrying amount of liabilities, consolidated variable interest entity	112,378		109,499
Investment in equity method investees	7,004		6,582
Variable Interest Entity, Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Carrying amount of assets, consolidated variable interest entity	755		744
Carrying amount of liabilities, consolidated variable interest entity	$ 23		18
Electricity Transmission Line (in miles) | mi	280
Percentage of profits and losses	50.00%
Other variable interest entities [Member]
Variable Interest Entity [Line Items]
Investments in special purpose entities	$ 4,317		4,016
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	9
Carrying amount of assets, consolidated variable interest entity	$ 2,095		2,084
Carrying amount of liabilities, consolidated variable interest entity	$ 1,179		1,174
Solar generating facility capability (in megawatts) | MW	772
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%
Indirect Subsidiary of NextEra Energy Resources [Member] | Photovoltaic Solar Facility [Member] | Forecast
Variable Interest Entity [Line Items]
Solar generating facility capability (in megawatts) | MW		125
Solar Plus Storage Facility Capacity | MW		65
NextEra Energy Resources | Photovoltaic Solar Facility [Member]
Variable Interest Entity [Line Items]
Number of variable interest entities with guarantees to obligations | variable_interest_entity	1
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	$ 1,479		1,488
Carrying amount of liabilities, consolidated variable interest entity	$ 77		86
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	31
Carrying amount of assets, consolidated variable interest entity	$ 19,960		19,690
Carrying amount of liabilities, consolidated variable interest entity	$ 1,886		2,318
Wind electric generating facility capability (in megawatts) | MW	12,014
Solar generating facility capability (in megawatts) | MW	731
Solar Plus Storage Facility Capacity | MW	324
Number of variable interest entities with guarantees to obligations | variable_interest_entity	3
NextEra Energy Resources | Variable Interest Entities Wind and Solar Primary Beneficiary [Member] [Member] | Forecast
Variable Interest Entity [Line Items]
Solar generating facility capability (in megawatts) | MW		1,030
Solar Plus Storage Facility Capacity | MW		390
Florida Power & Light Company
Variable Interest Entity [Line Items]
Carrying amount of assets, consolidated variable interest entity	$ 88,025		86,559
Carrying amount of liabilities, consolidated variable interest entity	48,125		47,639
Florida Power & Light Company | Other variable interest entities [Member]
Variable Interest Entity [Line Items]
Investments in special purpose entities	3,468		3,331
Other Investments [Member] | Subsidiaries of NEE [Member]
Variable Interest Entity [Line Items]
Investment in equity method investees	5,355		$ 5,214
Commitments To Increase (Decrease) In Equity Method Investments	$ 205