Summary of Significant Accounting and Reporting Policies - Additional Information (Details) $ in Millions	1 Months Ended				3 Months Ended			6 Months Ended
	Jul. 31, 2023 USD ($)	May 31, 2023 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($) facility MW	Jun. 30, 2023 USD ($) facility	Mar. 31, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) facility MW	Jun. 30, 2022 USD ($)	Apr. 30, 2023
Accounting Policies [Line Items]
Restricted cash and cash equivalents, current				$ 1,840	$ 1,177			$ 1,177
restricted cash related to margin cash collateral that is netted against derivative liabilities				1,541	1,040			1,040
Restricted cash related to margin cash collateral that is netted against derivative instruments				7
Customer deposits				560	596			596
Accrued construction-related expenditures				1,760	1,911			1,911
Gain in connection with sale					6		$ 1	4	$ 25
Supplier Finance Program, Obligation				3,700	3,800			3,800
Storm Restoration Costs
Accounting Policies [Line Items]
Unrecovered Storm Costs to be Recovered through an Interim Storm Restoration Charge			$ 1,300
Regulatory Asset, Amortization Period										12 months
Florida Power & Light Company
Accounting Policies [Line Items]
Increase (Decrease) in under Energy Recovery			2,100
Natural Gas Mid-Course Correction, Value		$ 379	$ 1,000
Restricted cash and cash equivalents, current				33	20			20
Customer deposits				543	570			570
Accrued construction-related expenditures				$ 559	$ 537			$ 537
Energy Recovery, Period			21 months
Fuel Mid-Course Correction, Period		8 months	9 months
Florida Power & Light Company | Subsequent Event
Accounting Policies [Line Items]
Natural Gas Mid-Course Correction, Value	$ 256
Fuel Mid-Course Correction, Period	6 months
Five wind generation facilities and three solar facilities located in multiple regions | Disposed of by Sale [Member] | Subsidiaries of NextEra Energy Resources | United States, Geographically Dispersed
Accounting Policies [Line Items]
Number of wind generation facilities | facility					5			5
Number of solar generation facilities | facility					3			3
Generating capacity (MW) | MW								688
Purchase price					$ 566			$ 566
Disposal Group, Including Discontinued Operation, Working Capital					$ 32			$ 32
Five wind generation facilities and three solar facilities located in multiple regions | Disposed of by Sale [Member] | Subsidiaries of NextEra Energy Resources | NEP | United States, Geographically Dispersed
Accounting Policies [Line Items]
Ownership percentage sold					100.00%			100.00%
Three wind facilities and one solar plus battery facility | Disposed of by Sale [Member] | Subsidiaries of NextEra Energy Resources | United States, Geographically Dispersed
Accounting Policies [Line Items]
Number of facilities under construction | facility				2
Three wind facilities and one solar plus battery facility | Disposed of by Sale [Member] | Subsidiaries of NextEra Energy Resources | NEP | United States, Geographically Dispersed
Accounting Policies [Line Items]
Ownership percentage sold				49.00%
Number of wind generation facilities | facility				3
Number of Solar Plus Battery Facilities | facility				1
Solar Plus Storage Facility Capacity | MW				65
Generating capacity (MW) | MW				1,437
Three wind facilities | Disposed of by Sale [Member] | Subsidiaries of NextEra Energy Resources | NEP | United States, Midwest Region
Accounting Policies [Line Items]
Ownership percentage sold				100.00%
Number of wind generation facilities				3
Generating capacity (MW) | MW				347
Three wind generation facilities and one solar plus battery facility and three wind facilities | Disposed of by Sale [Member] | Subsidiaries of NextEra Energy Resources | NEP and Differential Membership
Accounting Policies [Line Items]
Customer deposits				$ 170
Three wind generation facilities and one solar plus battery facility and three wind facilities | Disposed of by Sale [Member] | NextEra Energy Resources
Accounting Policies [Line Items]
Purchase price				805
Disposal Group, Including Discontinued Operation, Working Capital				8
Three wind generation facilities and one solar plus battery facility and three wind facilities | Disposed of by Sale [Member] | Current other liabilities | Subsidiaries of NextEra Energy Resources
Accounting Policies [Line Items]
Contract with Customer, Liability, Revenue Recognized						$ 81
Three wind generation facilities and one solar plus battery facility and three wind facilities | Disposed of by Sale [Member] | Current other liabilities | Subsidiaries of NextEra Energy Resources | NEP
Accounting Policies [Line Items]
Customer deposits				69
Three wind generation facilities and one solar plus battery facility and three wind facilities | Disposed of by Sale [Member] | Current other liabilities | Subsidiaries of NextEra Energy Resources | NEP and Differential Membership
Accounting Policies [Line Items]
Customer deposits				251
Three wind generation facilities and one solar plus battery facility and three wind facilities | Disposed of by Sale [Member] | Current other liabilities | Subsidiaries of NextEra Energy Resources | Differential Memberships
Accounting Policies [Line Items]
Customer deposits				101
Three wind generation facilities and one solar plus battery facility and three wind facilities | Disposed of by Sale [Member] | Accounts Payable
Accounting Policies [Line Items]
Accrued construction-related expenditures				$ 810	$ 352			$ 352