Summary of Significant Accounting and Reporting Policies (Additional Information) (Details) € in Millions, account in Millions								1 Months Ended		12 Months Ended					48 Months Ended
	Jan. 01, 2023 USD ($)	Oct. 26, 2020	Sep. 14, 2020	Feb. 11, 2020 USD ($) solar_generation_facility MW	Apr. 01, 2019 USD ($) MW	Jan. 01, 2018 USD ($)	Jan. 01, 2017 USD ($)	Jan. 31, 2022 USD ($)	Sep. 30, 2020 USD ($) customer	Dec. 31, 2025 USD ($) MW	Dec. 31, 2024 USD ($) MW	Dec. 31, 2020 USD ($) facility account county unit MW	Dec. 31, 2019 USD ($) solar_generation_facility wind_generation_facility MW	Dec. 31, 2018 USD ($) facility wind_generation_facility solar_generation_facility MW	Dec. 31, 2020 USD ($) kWh county facility account MW	Feb. 11, 2020 EUR (€)	Jan. 01, 2020 USD ($)
Basis of Presentation [Abstract]
Number of customer accounts (more than) | account												5.6			5.6
Number of counties In which entity operates | county												8			8
Stockholders' Equity Note, Stock Split, Conversion Ratio		4	4
Noncontrolling Interest [Abstract]
Investment in equity method investees												$ 5,728,000,000	$ 7,453,000,000	$ 6,748,000,000	$ 5,728,000,000
Equity Method Investment, Realized Gain (Loss) on Deconsolidation, Before Tax														3,900,000,000
Equity Method Investment, Realized Gain (Loss) on Deconsolidation, After Tax														3,000,000,000.0
Regulated and Unregulated Operating Revenue [Abstract]
Revenue from contracts with customers												17,000,000,000.0	17,500,000,000	15,400,000,000
Electric Plant, Depreciation and Amortization [Abstract]
Convertible ITCs												791,000,000	824,000,000
Convertible ITCs included in other receivables												10,000,000	10,000,000		10,000,000
Construction Activity [Abstract]
Impairment charges													72,000,000
Impairment of long-lived assets, after tax													54,000,000
Decommissioning of Nuclear Plants, Dismantlement of Plants and Other Accrued Asset Removal Costs [Abstract]
Asset Retirement Obligation												3,166,000,000	3,506,000,000	3,135,000,000	3,166,000,000
Restricted Cash [Abstract]
restricted cash related to margin cash collateral that is netted against derivative assets												183,000,000	139,000,000		183,000,000
restricted cash related to margin cash collateral that is netted against derivative liabilities												136,000,000	(66,000,000)		136,000,000
Restricted cash												441,000,000	508,000,000		441,000,000
Measurement of Credit Losses on Financial Instruments [Abstract]
Retained earnings												25,363,000,000	25,199,000,000		25,363,000,000
Income Taxes [Abstract]
Revenue equivalent of the difference in accumulated deferred income taxes computed under accounting rules, as compared to regulatory accounting rules												$ 3,949,000,000	4,141,000,000		3,949,000,000
Amortization period												5 years
Unrecognized tax benefits that impact annual effective income tax rate												$ 129,000,000			$ 129,000,000
Variable Interest Entities [Abstract]
Net Income (Loss) Attributable to Noncontrolling Interest												$ (550,000,000)	(381,000,000)	(862,000,000)
Redeemable noncontrolling interests													$ 423,000,000
Leases [Abstract]
Operating Lease, Liability, Statement of Financial Position [Extensible List]												us-gaap:OtherLiabilities	us-gaap:OtherLiabilities		us-gaap:OtherLiabilities
Disposal of a Business/Assets [Abstract]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal												$ 353,000,000	$ 406,000,000	80,000,000
Sale of Noncontrolling Ownership Interests [Abstract]
Proceeds from Sale of Interest in Partnership Unit												$ 656,000,000
Solar Generating Capacity | MW												100			100
Solar Plus Storage Facility Capacity | MW												30			30
Customer deposits												$ 474,000,000	499,000,000		$ 474,000,000
Purchaser Of Facility Terms Not Met												155,000,000			155,000,000
Variable Interest Entity, Primary Beneficiary [Member]
Variable Interest Entities [Abstract]
Income (Loss) Attributable to Noncontrolling Interest, before Tax												497,000,000
Net Income (Loss) Attributable to Noncontrolling Interest												373,000,000
Accounting Standards Update 2016-13 [Member]
Measurement of Credit Losses on Financial Instruments [Abstract]
Retained earnings																	$ 11,000,000
FPL[Member]
Regulated and Unregulated Operating Revenue [Abstract]
Revenue from contracts with customers												11,600,000,000	12,100,000,000	$ 11,800,000,000
Regulated Operations [Abstract]
Number of generation facilities retired during period | facility														3
Net book value												$ 48,933,000,000	45,074,000,000		$ 48,933,000,000
FPSC rate orders and 2021 Base Rate Proceeding [Abstract]
Increase in base rate revenues					$ 200,000,000	$ 211,000,000	$ 400,000,000
Energy Assets, Power Generation Capacity | MW					1,720
Renewable energy assets, power generation capacity (mw) | MW												1,200			1,200
Regulatory return on common equity (in hundredths)															10.55%
Earned regulatory ROE threshold below which retail base rate relief may be sought (in hundredths)															9.60%
Earned regulatory ROE threshold above which retail base rate reduction may be sought (in hundredths)															11.60%
Time period after filing of a cost recovery petition that future storm restoration costs would be recoverable on an interim basis															60 days
Maximum Amount Of Depreciation Reserve That May Be Amortized															$ 1,000,000,000.0
Reserve amount remaining under 2012 rate agreement that may be amortized															250,000,000
Maximum Storm Surcharge															4
Threshold Of Storm Restoration Costs In Any Given Calendar Year At Which Surcharge May Be Increased															800,000,000
Threshold Of Storm Restoration Costs In Any Given Calendar Year At Which Surcharge May Be Increased, Amount Above Which May Be Recovered															$ 400,000,000
Increment Of Usage In Kwh On Which Storm Surcharge Is Based | kWh															1,000
Cost Of Recovery Period															12 months
Electric Plant, Depreciation and Amortization [Abstract]
Convertible ITCs												$ 122,000,000	128,000,000
Maximum interval between depreciation studies performed and filed with the FPSC (in years)												four years
Construction Activity [Abstract]
Threshold of plant in service balance at which AFUDC may be recorded (in hundredths)												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												$ 7,000,000,000.0			$ 7,000,000,000.0
FPL's Ultimate costs of nuclear decommissioning, in current year dollars												2,500,000,000			2,500,000,000
FPL's fund earnings on decommissioning funds												$ 132,000,000	125,000,000	$ 94,000,000
Maximum interval between plant dismantlement studies submitted to the FPSC for approval (in years)												4 years
Plant Dismantlement Approved Expense Effective January 2017												$ 26,000,000
Ultimate Costs Of Plant Dismantlement												1,200,000,000			1,200,000,000
Ultimate Costs Of Plant Dismantlement In Current Year Dollars												541,000,000			541,000,000
Asset Retirement Obligation												1,804,000,000	2,268,000,000	$ 2,147,000,000	1,804,000,000
Restricted Cash [Abstract]
Restricted cash												76,000,000	118,000,000		76,000,000
Measurement of Credit Losses on Financial Instruments [Abstract]
Retained earnings												9,614,000,000	9,174,000,000		9,614,000,000
Income Taxes [Abstract]
Revenue equivalent of the difference in accumulated deferred income taxes computed under accounting rules, as compared to regulatory accounting rules												3,567,000,000	3,745,000,000		3,567,000,000
Accumulated Deferred Investment Tax Credit												729,000,000	412,000,000		729,000,000
Deferred income tax benefit associated with convertible ITCs												38,000,000	40,000,000
Sale of Noncontrolling Ownership Interests [Abstract]
Customer deposits												430,000,000	459,000,000		430,000,000
FPL[Member] | Hurricane Dorian [Member]
Storm Funds Storm Reserves and Storm Cost Recovery Abstract
Storm restoration costs													239,000,000
FPL[Member] | Hurricane Isaias and Tropical Storm Eta [Member]
Storm Funds Storm Reserves and Storm Cost Recovery Abstract
Storm restoration costs												200,000,000			200,000,000
NEER [Member]
Noncontrolling Interest [Abstract]
Investment in equity method investees												5,239,000,000	6,876,000,000		5,239,000,000
Construction Activity [Abstract]
Project development costs of NextEra Energy Resources												$ 571,000,000	$ 651,000,000		$ 571,000,000
Deemed capital structure of NextEra Energy Resources (in hundredths)												70.00%			70.00%
Wind Electric Generating Facility Capability | MW													220
Impairment charges												$ 1,500,000,000
Impairment of long-lived assets, after tax												1,200,000,000
Decommissioning of Nuclear Plants, Dismantlement of Plants and Other Accrued Asset Removal Costs [Abstract]
Asset Retirement Obligation												1,232,000,000	$ 1,097,000,000		$ 1,232,000,000
Ultimate Costs Of Nuclear Decommissioning For Wholly Owned Indirect Subsidiary												9,500,000,000			9,500,000,000
Ultimate Costs Of Nuclear Decommissioning In Current Year Dollars For Wholly Owned Indirect Subsidiary												2,100,000,000			2,100,000,000
Ultimate costs to dismantle wind and solar facilities												$ 2,400,000,000
Effective period for Seabrook's decommissioning funding plan (in years)												4 years
Variable Interest Entities [Abstract]
Wind Electric Generating Facility Capability | MW													220
NEER [Member] | Variable Interest Entity, Primary Beneficiary [Member]
Construction Activity [Abstract]
Wind Electric Generating Facility Capability | MW												10,913
Variable Interest Entities [Abstract]
Wind Electric Generating Facility Capability | MW												10,913
Solar generating facility capability | MW												1,377
Gulf Power [Member]
Regulated Operations [Abstract]
Regulatory Assets, Coal Generating Assets												$ 462,000,000			$ 462,000,000
Gulf Power [Member] | Hurricane Sally [Member]
Storm Funds Storm Reserves and Storm Cost Recovery Abstract
Eligible storm restoration costs									$ 206,000,000
Public Utilities, Number Of Customers Impacted By Hurricane | customer									285,000
subsidiary of NextEra Energy Resources [Member]
Disposal of a Business/Assets [Abstract]
Total generating facility capacity (mw) | MW												900
Sale of Noncontrolling Ownership Interests [Abstract]
Number Of Wind Generation Facilities | facility												3			3
Number Solar Generation Facilities | facility												4			4
Reduction To Additional Paid In Capital, Gross												$ 188,000,000			$ 188,000,000
Reduction To Additional Paid In Capital, Net												165,000,000			165,000,000
Other Noncontrolling Interests												689,000,000			689,000,000
Customer deposits												$ 155,000,000			$ 155,000,000
subsidiary of NextEra Energy Resources [Member] | Third Party [Member]
Sale of Noncontrolling Ownership Interests [Abstract]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners												50.00%			50.00%
subsidiary of NextEra Energy Resources [Member] | subsidiary of NextEra Energy Resources [Member]
Sale of Noncontrolling Ownership Interests [Abstract]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners												90.00%			90.00%
subsidiary of NextEra Energy Resources [Member] | NEP [Member]
Sale of Noncontrolling Ownership Interests [Abstract]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners												40.00%			40.00%
subsidiary of NextEra Energy Resources [Member] | Solar-Plus-Storage Facility [Member]
Sale of Noncontrolling Ownership Interests [Abstract]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners												100.00%			100.00%
Forecast [Member] | FPL[Member]
FPSC rate orders and 2021 Base Rate Proceeding [Abstract]
Increase in base rate revenues	$ 615,000,000							$ 1,100,000,000
Renewable energy assets, power generation capacity (mw) | MW										900	900
Regulatory return on common equity (in hundredths)								11.50%
Base Rate Plan Term								4 years
Base Rate Adjustments										$ 140,000,000	$ 140,000,000
Basis Point Incentive								0.50%
Minimum [Member] | FPL[Member]
FPSC rate orders and 2021 Base Rate Proceeding [Abstract]
Regulatory return on common equity (in hundredths)															9.60%
Maximum [Member] | FPL[Member]
FPSC rate orders and 2021 Base Rate Proceeding [Abstract]
Regulatory return on common equity (in hundredths)															11.60%
Coal Fired Generation Facility [Member]
Regulated Operations [Abstract]
Regulatory assets, net of amortization												$ 634,000,000	$ 799,000,000		$ 634,000,000
Coal Fired Generation Facility [Member] | FPL[Member]
Regulated Operations [Abstract]
Regulatory assets, net of amortization												634,000,000	799,000,000		634,000,000
Number of coal-fired electric generation facilities | facility														3
Regulatory asset, amortization period														9 years
Current other assets [Member]
Restricted Cash [Abstract]
Restricted cash, current												374,000,000	411,000,000		374,000,000
Current other assets [Member] | FPL[Member]
Restricted Cash [Abstract]
Restricted cash, current												58,000,000	54,000,000		58,000,000
NEP [Member]
Noncontrolling Interest [Abstract]
Investment in equity method investees													4,400,000,000
Franchise and Gross Receipts Taxes [Member]
Regulated and Unregulated Operating Revenue [Abstract]
Revenue from contracts with customers												725,000,000	763,000,000	$ 738,000,000
Franchise and Gross Receipts Taxes [Member] | FPL[Member]
Regulated and Unregulated Operating Revenue [Abstract]
Revenue from contracts with customers												725,000,000	763,000,000	738,000,000
Retired Plant [Member]
Regulated Operations [Abstract]
Regulatory assets, net of amortization												859,000,000	851,000,000		859,000,000
Retired Plant [Member] | FPL[Member]
Regulated Operations [Abstract]
Regulatory assets, net of amortization												859,000,000	851,000,000		$ 859,000,000
Net book value														883,000,000
Amount of regulatory assets deferred														$ 736,000,000
Regulatory asset, amortization period														15 years
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Two solar generation facilities located in Spain [Member]
Disposal of a Business/Assets [Abstract]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal												270,000,000
Disposal Group, Not Discontinued Operation, Gain (Loss) On Disposal, Net Of Tax												$ 270,000,000
Disposal Group, Including Discontinued Operation, Other Assets, Current													440,000,000
Current other liabilities													647,000,000
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 [Abstract]
Number Of Generation Facilities Sold | solar_generation_facility				2
Total generating facility capacity (mw) | MW				99.8
Disposal Group, Including Discontinued Operation, Consideration				$ 121,000,000												€ 111
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Three Wind Generation Facilities And Three Solar Generation Facilities [Member]
Disposal of a Business/Assets [Abstract]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal													341,000,000
Disposal Group, Not Discontinued Operation, Gain (Loss) On Disposal, Net Of Tax													259,000,000
Disposal Group, Including Discontinued Operation, Stockholders' Equity Attributable to Noncontrolling Interest													$ 118,000,000
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Three Wind Generation Facilities And Three Solar Generation Facilities [Member] | NEER [Member]
Disposal of a Business/Assets [Abstract]
Total generating facility capacity (mw) | MW													611
Disposal Group, Including Discontinued Operation, Consideration													$ 1,000,000,000.0
Disposal Group, Including Discontinued Operation, Working Capital													$ 12,000,000
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Solar plants [Member] | NEER [Member]
Disposal of a Business/Assets [Abstract]
Number Of Generation Facilities Sold | solar_generation_facility													3	1
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Solar plants [Member] | Noncontrolling Interest [Member] | NEER [Member]
Disposal of a Business/Assets [Abstract]
Number Of Generation Facilities Sold | solar_generation_facility													2
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | ten wind generation facilities and one solar generation facility [Member] | NEER [Member]
Disposal of a Business/Assets [Abstract]
Total generating facility capacity (mw) | MW														1,388
Disposal Group, Including Discontinued Operation, Consideration														$ 1,300,000,000
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal														36,000,000
Disposal Group, Not Discontinued Operation, Gain (Loss) On Disposal, Net Of Tax														32,000,000
Assumption Of Noncontrolling Interest														$ 941,000,000
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Wind plants [Member] | NEER [Member]
Disposal of a Business/Assets [Abstract]
Number Of Generation Facilities Sold | wind_generation_facility													3	10