Estimated Amounts from Required Capacity And/Or Minimum Payments, Annual Commitment

No definition available.

Name:	nee_AmountsFromRequiredCapacityAndOrMinimumPaymentsAnnualCommitment
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Commitment to invest in clean power and technology businesses.

+ References

No definition available.

+ Details

Name:	nee_CommitmentToInvest
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Commitments included in planned capital expenditures

+ References

No definition available.

+ Details

Name:	nee_CommitmentsIncludedInPlannedCapitalExpenditures
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Joint Obligations of NEECH and NEER included in the NEER amounts above due in the remainder of the current year

+ References

No definition available.

+ Details

Name:	nee_JointObligationsRemainderCurrentYear
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Joint Obligations of NEECH and NEER included in the NEER amounts above due in the second year

+ References

No definition available.

+ Details

Name:	nee_JointObligationsSecondYear
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Required Capacity And Or Minimum Payments Abstract

+ References

No definition available.

+ Details

Name:	nee_RequiredCapacityAndOrMinimumPaymentsAbstract
Namespace Prefix:	nee_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Estimated required capacity and/or minimum payments after the fifth year.

+ References

No definition available.

+ Details

Name:	nee_RequiredCapacityAndOrMinimumPaymentsAfterFifthYear
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Estimated required capacity and/or minimum payments for the fifth year.

+ References

No definition available.

+ Details

Name:	nee_RequiredCapacityAndOrMinimumPaymentsFifthYear
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Estimated required capacity and/or minimum payments for the fourth year.

+ References

No definition available.

+ Details

Name:	nee_RequiredCapacityAndOrMinimumPaymentsFourthYear
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Estimated required capacity and/or minimum payments for the remainder of the current year.

+ References

No definition available.

+ Details

Name:	nee_RequiredCapacityAndOrMinimumPaymentsRemainderCurrentYear
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Estimated required capacity and/or minimum payments for the second year.

+ References

No definition available.

+ Details

Name:	nee_RequiredCapacityAndOrMinimumPaymentsSecondYear
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Estimated required capacity and/or minimum payments for the third year.

+ References

No definition available.

+ Details

Name:	nee_RequiredCapacityAndOrMinimumPaymentsThirdYear
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Transportation Agreement, Term

+ References

No definition available.

+ Details

Name:	nee_TransportationAgreementTerm
Namespace Prefix:	nee_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481687/323-10-50-3

+ Details

Name:	us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_LongTermPurchaseCommitmentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of transactions with related party during the financial reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483326/850-10-50-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483326/850-10-50-3

+ Details

Name:	us-gaap_RelatedPartyTransactionAmountsOfTransaction
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=nee_NEERSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis=nee_ContractGroup1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=nee_MountainValleyPipelineMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=nee_NaturalGasTransportationAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=nee_FloridaPowerLightCompanyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=nee_SabalTrailandFloridaSoutheastConnectionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis=nee_NaturalGasIncludingTransportationAndStorageContractMinimumPaymentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ConsolidationItemsAxis=srt_ConsolidationEliminationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Commitments and Contingencies (Long-term Purchase Commitment) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
NEER Segment
Required capacity and/or minimum payments [Abstract]
Remainder of 2024	$ 4,395		$ 4,395
2025	2,110		2,110
2026	320		320
2027	210		210
2028	150		150
Thereafter	1,380		1,380
Commitment to invest	205		205
Joint Obligations Remainder Current Year	1,090		1,090
Joint Obligations Second Year	930		930
Contract Group 1 [Member] \| NEER Segment
Long-term Purchase Commitment [Line Items]
Commitment amount included in capital expenditures	5,300		$ 5,300
Mountain Valley Pipeline \| NEER Segment
Required capacity and/or minimum payments [Abstract]
Transportation Agreement, Term			20 years
Amounts from Required Capacity And/Or Minimum Payments, Annual Commitment	$ 35		$ 35
Mountain Valley Pipeline \| NEER Segment \| Natural Gas Transportation Agreement
Required capacity and/or minimum payments [Abstract]
Equity method investment, ownership percentage	33.20%		33.20%
Florida Power & Light Company
Required capacity and/or minimum payments [Abstract]
Remainder of 2024	$ 565		$ 565
2025	1,130		1,130
2026	1,140		1,140
2027	1,035		1,035
2028	985		985
Thereafter	8,025		8,025
Related Party Transaction, Amounts of Transaction	102	$ 108	203	$ 210
Florida Power & Light Company \| Sabal Trail and Florida Southeast Connection [Member] \| Natural Gas, Including Transportation And Storage, Contract Minimum Payments [Member]
Required capacity and/or minimum payments [Abstract]
Remainder of 2024	205		205
2025	405		405
2026	400		400
2027	400		400
2028	400		400
Thereafter	5,160		5,160
Florida Power & Light Company \| Consolidation, Eliminations [Member]
Required capacity and/or minimum payments [Abstract]
Related Party Transaction, Amounts of Transaction	$ 24	$ 25	$ 48	$ 49