Summary of Significant Accounting and Reporting Policies (Additional Information) (Details) € in Millions, account in Millions, $ in Millions			1 Months Ended				3 Months Ended	12 Months Ended
	Jan. 01, 2021	Dec. 31, 2020 USD ($) facility	Jan. 31, 2023 USD ($)	Dec. 31, 2022 USD ($) facility account county MW	Sep. 30, 2022 USD ($) MW	Dec. 31, 2021 USD ($) facility MW	Nov. 30, 2022 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($) facility account county unit MW	Dec. 31, 2021 USD ($) facility MW	Dec. 31, 2020 USD ($) facility MW	Aug. 31, 2022 USD ($)	Dec. 31, 2020 EUR (€) facility	Jan. 01, 2020 USD ($)
Regulated and Unregulated Operating Revenue [Abstract]
Revenue from contracts with customers									$ 23,000	$ 18,800	$ 17,000
Electric Plant, Depreciation and Amortization [Abstract]
Convertible ITCs									693	755
Decommissioning of Nuclear Plants, Dismantlement of Plants and Other Accrued Asset Removal Costs [Abstract]
Asset Retirement Obligation		$ 3,166		$ 3,328		$ 3,179			3,328	3,179	3,166
Restricted Cash [Abstract]
Restricted cash, current				1,840		677			1,840	677
Restricted cash related to margin cash collateral that is netted against derivative assets				7		121			7	121
Restricted cash related to margin cash collateral that is netted against derivative liabilities				1,541		172			1,541	172
Measurement of Credit Losses on Financial Instruments [Abstract]
Retained earnings				26,707		25,911			26,707	25,911
Accounts Receivable, Credit Loss Expense (Reversal)									(113)	(146)	(94)
Accounts Receivable, Allowance for Credit Loss, Noncurrent						127				127
Income Taxes [Abstract]
Revenue equivalent of the difference in accumulated deferred income taxes computed under accounting rules, as compared to regulatory accounting rules				3,504		3,780			$ 3,504	3,780
Amortization period									5 years
Unrecognized tax benefits that impact annual effective income tax rate				119					$ 119
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal									522	77	353
Customer deposits				560		485			560	485
Construction Costs				$ 1,760		1,378			$ 1,760	1,378
Storm Restoration Costs
Storm Funds Storm Reserves and Storm Cost Recovery Abstract
Regulatory asset, amortization period									12 months
St. Lucie Units Number One
Decommissioning of Nuclear Plants, Dismantlement of Plants and Other Accrued Asset Removal Costs [Abstract]
License renewal period									20 years
St. Lucie Units Number Two
Decommissioning of Nuclear Plants, Dismantlement of Plants and Other Accrued Asset Removal Costs [Abstract]
License renewal period									20 years
Accounting Standards Update 2016-13 [Member]
Measurement of Credit Losses on Financial Instruments [Abstract]
Retained earnings														$ 11
FPL [Member]
Basis of Presentation [Abstract]
Number of customer accounts (more than) | account				5.8					5.8
Number of counties In which entity operates | county				8					8
Regulated and Unregulated Operating Revenue [Abstract]
Revenue from contracts with customers									$ 17,200	14,100	13,000
Electric Plant, Depreciation and Amortization [Abstract]
Convertible ITCs									$ 111	116
Construction Activity [Abstract]
Threshold of plant in service balance at which AFUDC may be recorded (in hundredths)	0.40%	0.50%
Decommissioning of Nuclear Plants, Dismantlement of Plants and Other Accrued Asset Removal Costs [Abstract]
Maximum interval between nuclear decommissioning studies submitted to the FPSC for approval (in years)									5 years
For FPL, number of nuclear units | unit									4
FPL's portion of the ultimate costs of nuclear decommissioning				$ 9,600					$ 9,600
FPL's Ultimate costs of nuclear decommissioning, in current year dollars				2,500					2,500
FPL's fund earnings on decommissioning funds									58	173	132
Plant Dismantlement Approved Expense									26
Ultimate Costs Of Plant Dismantlement				2,400					2,400
Ultimate Costs Of Plant Dismantlement In Current Year Dollars				1,200					1,200
Asset Retirement Obligation		$ 1,936		2,176		2,107			2,176	2,107	1,936
Restricted Cash [Abstract]
Restricted cash, current				33		53			33	53
Measurement of Credit Losses on Financial Instruments [Abstract]
Retained earnings				13,986		12,285			13,986	12,285
Storm Funds Storm Reserves and Storm Cost Recovery Abstract
Recoverable Storm Restoration Costs							$ 1,300
Storm Reserve, Value												$ 220
Recoverable Storm Restoration Costs in Excess of Storm Reserve				1,100					1,100
Public Utilities, Accrued Storm Restoration Costs				(618)					(618)
Storm restoration costs										(28)	(183)
Storm restoration costs				(155)		242			(155)	242
Income Taxes [Abstract]
Revenue equivalent of the difference in accumulated deferred income taxes computed under accounting rules, as compared to regulatory accounting rules				3,449		3,723			3,449	3,723
Accumulated Deferred Investment Tax Credit				1,031		1,054			1,031	1,054
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Customer deposits				543		478			543	478
Construction Costs				559		601			$ 559	601
FPL [Member] | Subsequent Event
Fuel Recovery [Abstract]
Increase (Decrease) in under Energy Recovery			$ 2,100
Natural Gas Mid-Course Correction, Value			1,000
Storm Funds Storm Reserves and Storm Cost Recovery Abstract
Storm Reserve, Value			220
Storm Restoration Costs, Pre-2022			$ 136
FPL [Member] | St. Lucie Units Number Two
Decommissioning of Nuclear Plants, Dismantlement of Plants and Other Accrued Asset Removal Costs [Abstract]
License renewal period									20 years
NEER [Member]
Construction Activity [Abstract]
Project development costs of NEER				$ 1,027		831			$ 1,027	831
Deemed capital structure of NEER (in hundredths)				70.00%					70.00%
Decommissioning of Nuclear Plants, Dismantlement of Plants and Other Accrued Asset Removal Costs [Abstract]
Asset Retirement Obligation				$ 1,200		1,100			$ 1,200	1,100
Ultimate Costs Of Nuclear Decommissioning For Wholly Owned Indirect Subsidiary				9,500					9,500
Ultimate Costs Of Nuclear Decommissioning In Current Year Dollars For Wholly Owned Indirect Subsidiary				2,000					2,000
Ultimate costs to dismantle wind and solar facilities									$ 2,500
Effective period for Seabrook's decommissioning funding plan (in years)									4 years
NEER [Member] | Variable Interest Entity, Primary Beneficiary [Member]
Variable Interest Entities [Abstract]
Wind Electric Generating Facility Capability | MW									12,413
Solar generating facility capability | MW									2,360
Battery Storage Facility Capability [Line Items] | MW									714
Forecast [Member] | FPL [Member]
Decommissioning of Nuclear Plants, Dismantlement of Plants and Other Accrued Asset Removal Costs [Abstract]
Plant Dismantlement Approved Expense								$ 48
Regulatory Assets, Current | FPL [Member]
Storm Funds Storm Reserves and Storm Cost Recovery Abstract
Storm restoration costs				(101)		92			$ (101)	92
Regulatory Assets, Noncurrent | FPL [Member]
Storm Funds Storm Reserves and Storm Cost Recovery Abstract
Storm restoration costs				$ (54)		150			(54)	150
Franchise and Gross Receipts Taxes [Member]
Regulated and Unregulated Operating Revenue [Abstract]
Revenue from contracts with customers									1,035	852	800
Franchise and Gross Receipts Taxes [Member] | FPL [Member]
Regulated and Unregulated Operating Revenue [Abstract]
Revenue from contracts with customers									$ 1,035	$ 852	$ 800
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Three wind facilities, one solar plus battery facility | Subsidiaries of NextEra Energy Resources | NEP [Member] | United States, Geographically Diverse Locations
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Ownership percentage sold				49.00%					49.00%
Number Of Wind Generation Facilities | facility				3					3
Number of Solar Plus Battery Facilities | facility				1					1
Total generating facility capacity (mw) | MW				1,437
Battery storage facility capacity | MW				65
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Three wind facilities | Subsidiaries of NextEra Energy Resources | NEP [Member] | United States, Midwest Region
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Ownership percentage sold				100.00%					100.00%
Number Of Wind Generation Facilities				3					3
Total generating facility capacity (mw) | MW				347
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Three wind generation facilities and one solar plus battery facility and three wind facilities | NEER [Member]
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Disposal Group, Including Discontinued Operation, Consideration				$ 805					$ 805
Disposal Group, Including Discontinued Operation, Working Capital				8					8
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal				301
Disposal Group, Not Discontinued Operation, Gain (Loss) On Disposal, Net Of Tax				230
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Three wind generation facilities and one solar plus battery facility and three wind facilities | Subsidiaries of NextEra Energy Resources | NEP [Member]
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Customer deposits				150					150
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Three wind generation facilities and one solar plus battery facility and three wind facilities | Subsidiaries of NextEra Energy Resources | Differential Memberships
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Customer deposits				101					101
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Three wind generation facilities and one solar plus battery facility and three wind facilities | Subsidiaries of NextEra Energy Resources | NEP and Differential
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Customer deposits				251					251
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Battery Storage Facility | NEER [Member] | CALIFORNIA
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Battery storage facility capacity | MW					230
Disposal Group, Including Discontinued Operation, Consideration					$ 191
Disposal Group, Including Discontinued Operation, Working Capital					2
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal					87
Disposal Group, Not Discontinued Operation, Gain (Loss) On Disposal, Net Of Tax					$ 66
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Battery Storage Facility | NEER [Member] | NEP [Member] | CALIFORNIA
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Ownership percentage sold					67.00%
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Seven wind facilities, six solar facilities and storage capacity
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal						53
Disposal Group, Not Discontinued Operation, Gain (Loss) On Disposal, Net Of Tax						$ 33
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Seven wind facilities, six solar facilities and storage capacity | Subsidiaries of NextEra Energy Resources | Third Party [Member] | United States, Geographically Diverse Locations
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Ownership percentage sold						50.00%				50.00%
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Seven wind facilities, six solar facilities and storage capacity | Subsidiaries of NextEra Energy Resources | NEP [Member] | United States, Geographically Diverse Locations
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Ownership percentage sold						50.00%				50.00%
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Seven wind facilities, six solar facilities and storage capacity | Subsidiaries of NextEra Energy Resources | NEP And Third Party | United States, Geographically Diverse Locations
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Number Of Wind Generation Facilities | facility						7				7
Number Solar Generation Facilities | facility						6				6
Total generating facility capacity (mw) | MW						2,520
Battery storage facility capacity | MW						115
Disposal Group, Including Discontinued Operation, Consideration						$ 1,700				$ 1,700
Customer deposits						349				349
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Seven wind facilities, six solar facilities and storage capacity | Subsidiaries of NextEra Energy Resources | Differential Memberships | United States, Geographically Diverse Locations
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Customer deposits						319				319
Disposal of Business and Interest Affiliates, Contingent Payments				117		$ 117			117	$ 117
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Seven wind facilities, six solar facilities and storage capacity | Subsidiaries of NextEra Energy Resources | Subsidiaries of NextEra Energy Resources | United States, Geographically Diverse Locations
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Ownership percentage sold						100.00%				100.00%
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Seven wind facilities, six solar facilities and storage capacity | Subsidiaries of NextEra Energy Resources | NEP , Third Party and Differential Membership | United States, Geographically Diverse Locations
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Customer deposits						$ 668				$ 668
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Three wind facilities and one solar facility | Subsidiaries of NextEra Energy Resources | United States, Midwest and West Regions
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Number Of Wind Generation Facilities | facility						3				3
Number Solar Generation Facilities | facility						1				1
Total generating facility capacity (mw) | MW										467
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Three wind facilities and one solar facility | Subsidiaries of NextEra Energy Resources | NEP [Member] | United States, Midwest and West Regions
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Ownership percentage sold						100.00%				100.00%
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Four solar facilities and multiple generation solar facilities | Subsidiaries of NextEra Energy Resources | United States, Geographically Diverse Locations
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Number Solar Generation Facilities | facility						4				4
Total generating facility capacity (mw) | MW										122
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Four solar facilities and multiple generation solar facilities | Subsidiaries of NextEra Energy Resources | NEP [Member] | United States, Geographically Diverse Locations
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Ownership percentage sold						33.30%				33.30%
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Three wind generation facilities and one solar facility and four solar facilities and multiple distributed generation solar facilities
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal										$ 94
Disposal Group, Not Discontinued Operation, Gain (Loss) On Disposal, Net Of Tax										69
Disposal Group, Including Discontinued Operation, Stockholders' Equity Attributable to Noncontrolling Interest						$ 125				125
Increase (Decrease) To Additional Paid In Capital, Gross						60				60
Increase (Decrease) To Additional Paid In Capital, Net						43				43
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Three wind generation facilities and one solar facility and four solar facilities and multiple distributed generation solar facilities | NEER [Member]
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Disposal Group, Including Discontinued Operation, Consideration						563				563
Disposal Group, Including Discontinued Operation, Working Capital						22				22
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Three wind generation facilities and four solar generation facilities | subsidiary of NextEra Energy Resources [Member]
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Number Of Wind Generation Facilities | facility		3									3		3
Number Solar Generation Facilities | facility		4									4		4
Total generating facility capacity (mw) | MW											900
Disposal Group, Including Discontinued Operation, Stockholders' Equity Attributable to Noncontrolling Interest		$ 689									$ 689
Increase (Decrease) To Additional Paid In Capital, Gross		(188)									(188)
Increase (Decrease) To Additional Paid In Capital, Net		$ (165)									$ (165)
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Three wind generation facilities and four solar generation facilities | subsidiary of NextEra Energy Resources [Member] | Third Party [Member]
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Ownership percentage sold		50.00%									50.00%		50.00%
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Three wind generation facilities and four solar generation facilities | subsidiary of NextEra Energy Resources [Member] | subsidiary of NextEra Energy Resources [Member]
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Ownership percentage sold		90.00%									90.00%		90.00%
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Three wind generation facilities and four solar generation facilities | subsidiary of NextEra Energy Resources [Member] | NEP [Member]
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Ownership percentage sold		40.00%									40.00%		40.00%
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | One solar generation facility and one battery storage facility
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Battery storage facility capacity | MW											30
Solar Generating Capacity | MW											100
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | One solar generation facility and one battery storage facility | subsidiary of NextEra Energy Resources [Member]
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Customer deposits		$ 155									$ 155
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | One solar generation facility and one battery storage facility | subsidiary of NextEra Energy Resources [Member] | NEP [Member]
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Ownership percentage sold		100.00%									100.00%		100.00%
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Three wind generation facilities and four solar facilities and one solar generation facility and one battery storage facility | NEER [Member]
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Disposal Group, Including Discontinued Operation, Consideration		$ 656									$ 656
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Two solar generation facilities located in Spain [Member]
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal											270
Disposal Group, Not Discontinued Operation, Gain (Loss) On Disposal, Net Of Tax											$ 270
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Two solar generation facilities located in Spain [Member] | NEER [Member]
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Number Solar Generation Facilities | facility		2									2		2
Total generating facility capacity (mw) | MW											99.8
Disposal Group, Including Discontinued Operation, Consideration		$ 121									$ 121		€ 111
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Current other liabilities | Seven wind facilities, six solar facilities and storage capacity | Subsidiaries of NextEra Energy Resources | United States, Geographically Diverse Locations
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Contract with Customer, Liability, Revenue Recognized									551
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Accounts Payable | Three wind generation facilities and one solar plus battery facility and three wind facilities
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Construction Costs				$ 810					$ 810
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Accounts Payable | Seven wind facilities, six solar facilities and storage capacity
Disposal of a Business/Assets and Sale of Noncontrolling Interest [Abstract]
Construction Costs						$ 970				$ 970