Percentage of Total Capital allowed as distribution.

No definition available.

Name:	duk_LimitofTotalCapital
Namespace Prefix:	duk_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Total expenditures for long-lived assets additions other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets of the reportable segment; if the amount: (a) is included in the determination of segment assets reviewed by the chief operating decision maker or (b) is otherwise regularly provided to the chief operating decision maker, even if not included in the determination of segment assets.

+ References

No definition available.

+ Details

Name:	duk_NoncurrentAssetAdditions
Namespace Prefix:	duk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Public Utilities, Equity Ratio

+ References

No definition available.

+ Details

Name:	duk_PublicUtilitiesEquityRatio
Namespace Prefix:	duk_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Public Utilities, Number Of Customers Impacted

+ References

No definition available.

+ Details

Name:	duk_PublicUtilitiesNumberOfCustomersImpacted
Namespace Prefix:	duk_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Public Utilities, Operating License Extension, Period

+ References

No definition available.

+ Details

Name:	duk_PublicUtilitiesOperatingLicenseExtensionPeriod
Namespace Prefix:	duk_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Public Utilities, Operating License, Period

+ References

No definition available.

+ Details

Name:	duk_PublicUtilitiesOperatingLicensePeriod
Namespace Prefix:	duk_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Regulatory Agreement, Battery Storage To Be Removed From Portfolio

+ References

No definition available.

+ Details

Name:	duk_RegulatoryAgreementBatteryStorageToBeRemovedFromPortfolio
Namespace Prefix:	duk_
Data Type:	dtr-types:powerItemType
Balance Type:	na
Period Type:	instant

- Definition

Regulatory Agreement, Customer Shared Benefits Contributions

+ References

No definition available.

+ Details

Name:	duk_RegulatoryAgreementCustomerSharedBenefitsContributions
Namespace Prefix:	duk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Regulatory Agreement, Customer Shared Benefits Contributions, Period

+ References

No definition available.

+ Details

Name:	duk_RegulatoryAgreementCustomerSharedBenefitsContributionsPeriod
Namespace Prefix:	duk_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Regulatory Agreement, Guaranteed Customer Savings

+ References

No definition available.

+ Details

Name:	duk_RegulatoryAgreementGuaranteedCustomerSavings
Namespace Prefix:	duk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Regulatory Agreement, Guaranteed Customer Savings, Period

+ References

No definition available.

+ Details

Name:	duk_RegulatoryAgreementGuaranteedCustomerSavingsPeriod
Namespace Prefix:	duk_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Required minimum equity capital structure percent

+ References

No definition available.

+ Details

Name:	duk_RequiredEquityCapitalStructurePercent
Namespace Prefix:	duk_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Unusual or Infrequent Item, or Both, Total Storm Restoration Costs

+ References

No definition available.

+ Details

Name:	duk_UnusualOrInfrequentItemOrBothTotalStormRestorationCosts
Namespace Prefix:	duk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Carrying amount as of the balance sheet date of the portion of the reserved funds established by a utility from customer payments to cover the repair costs of damages from major storms, which repairs are expected to be incurred beyond one year or the normal operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 980
-SubTopic 340
-Name Accounting Standards Codification
-Section 25
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477711/980-340-25-1

+ Details

Name:	us-gaap_AssetRecoveryDamagedPropertyCostsNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The increase (decrease) during the reporting period in regulated liabilities. Regulated liabilities are created when regulatory agency permits an entity to defer revenues to the balance sheet.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (a)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

+ Details

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

- Definition

Amount of public utility's approved rate increase (decrease) by regulatory agency.

+ References

No definition available.

+ Details

Name:	us-gaap_PublicUtilitiesApprovedRateIncreaseDecreaseAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Percentage of public utility's approved return on equity.

+ References

No definition available.

+ Details

Name:	us-gaap_PublicUtilitiesApprovedReturnOnEquityPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

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

- Definition

Amount of public utility's requested rate increase (decrease) with regulatory agency.

+ References

No definition available.

+ Details

Name:	us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount for the individual regulatory asset as itemized in a table of regulatory assets as of the end of the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 980
-SubTopic 340
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478742/980-340-50-1

+ Details

Name:	us-gaap_RegulatoryAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are not expected to be recovered through revenue sources within one year or the normal operating cycle if longer.

+ References

+ Details

Name:	us-gaap_RegulatoryAssetsNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of operating expenses for the period that are associated with the utility's normal revenue producing operation; including selling, general, and administrative expenses, costs incurred for routine plant repairs and maintenance, and operations.

+ References

No definition available.

+ Details

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

- Details

Name:	us-gaap_RegulatoryAgencyAxis=duk_NuclearRegulatoryCommissionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	us-gaap_PublicUtilitiesRegulatoryProceedingAxis=duk_DukeEnergyKentuckyElectricBaseRateCaseElectricBaseRatesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RegulatoryAgencyAxis=duk_KPSCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PublicUtilitiesRegulatoryProceedingAxis=duk_DukeEnergyKentuckyElectricBaseRateCaseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	us-gaap_PublicUtilitiesRegulatoryProceedingAxis=duk_DukeEnergyKentucky2024ElectricBaseRateCaseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PublicUtilitiesRegulatoryProceedingAxis=duk_DukeEnergyKentucky2025NaturalGasBaseRateCaseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RegulatoryAgencyAxis=duk_KentuckyPublicServiceCommissionKPSCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	us-gaap_PublicUtilitiesRegulatoryProceedingAxis=duk_ApplicationsToCombineUtilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RegulatoryAgencyAxis=duk_NorthCarolinaUtilitiesCommissionNCUCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_UnusualOrInfrequentItemAxis=duk_WinterStormFernMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_UnusualOrInfrequentItemAxis=duk_HurricanesHeleneDebbyAndMiltonMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	us-gaap_PublicUtilitiesRegulatoryProceedingAxis=duk_OconeeNuclearStationSubsequentLicenseRenewalMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PublicUtilityAxis=duk_OconeeNuclearStationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_UnusualOrInfrequentItemAxis=us-gaap_NaturalDisastersAndOtherCasualtyEventsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PublicUtilitiesRegulatoryProceedingAxis=duk_HurricanesHeleneDebbyAndMiltonMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

Regulatory Matters (Duke Energy Narrative) (Details) customer in Thousands, $ in Millions						1 Months Ended		12 Months Ended			24 Months Ended
	Jan. 03, 2026 USD ($)	Oct. 02, 2025 USD ($)	Mar. 31, 2025	Dec. 02, 2024 USD ($)	Oct. 12, 2023 USD ($)	Jan. 31, 2026 USD ($) customer	Dec. 31, 2025 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2025 USD ($)	Feb. 24, 2026 USD ($) MW
Public Utilities, General Disclosures [Line Items]
Capital expenditures								$ 14,002	$ 12,263	$ 12,622
Operation, maintenance and other								6,698	5,389	5,625
Regulatory assets							$ 16,313	16,313	16,959		$ 16,313
Other Noncurrent Assets: Regulatory assets							$ 14,379	$ 14,379	14,220		$ 14,379
Nuclear Regulatory Commission
Public Utilities, General Disclosures [Line Items]
Operating license extension (in years)								20 years
Duke Energy Ohio
Public Utilities, General Disclosures [Line Items]
Limit of total capital (as a percent)							30.00%	30.00%			30.00%
Capital expenditures								$ 929	815	939
Operation, maintenance and other								490	485	478
Regulatory assets							$ 772	772	793		$ 772
Other Noncurrent Assets: Regulatory assets							$ 686	$ 686	705		$ 686
Duke Energy Ohio \| Duke Energy Kentucky Electric Base Rate Case, Electric Base Rates \| KPSC
Public Utilities, General Disclosures [Line Items]
Approved return on equity (as a percent)					9.75%
Duke Energy Ohio \| Duke Energy Kentucky Electric Base Rate Case \| KPSC
Public Utilities, General Disclosures [Line Items]
Approved rate increase (decrease) amount by state commission					$ 48
Duke Energy Ohio \| Maximum \| Duke Energy Kentucky Electric Base Rate Case \| KPSC
Public Utilities, General Disclosures [Line Items]
Equity ratio (as a percent)					52.145%
Duke Energy Kentucky
Public Utilities, General Disclosures [Line Items]
Required minimum equity capital structure (as a percent)							35.00%	35.00%			35.00%
Duke Energy Kentucky \| Duke Energy Kentucky 2024 Electric Base Rate Case \| KPSC
Public Utilities, General Disclosures [Line Items]
Requested rate increase (decrease)				$ 70
Duke Energy Kentucky \| Duke Energy Kentucky 2025 Natural Gas Base Rate Case \| Kentucky Public Service Commission (KPSC)
Public Utilities, General Disclosures [Line Items]
Approved rate increase (decrease) amount by state commission		$ 44
Duke Energy Kentucky \| Duke Energy Kentucky 2025 Natural Gas Base Rate Case \| Kentucky Public Service Commission (KPSC) \| Subsequent Event \| Forecast
Public Utilities, General Disclosures [Line Items]
Approved rate increase (decrease) amount by state commission	$ 22
Approved return on equity (as a percent)	9.80%
Equity ratio (as a percent)	52.649%
Duke Energy Kentucky \| Duke Energy Kentucky Electric Base Rate Case, Electric Base Rates \| Kentucky Public Service Commission (KPSC)
Public Utilities, General Disclosures [Line Items]
Approved return on equity (as a percent)		9.80%
Duke Energy Kentucky \| Duke Energy Kentucky Electric Base Rate Case \| Kentucky Public Service Commission (KPSC)
Public Utilities, General Disclosures [Line Items]
Equity ratio (as a percent)		52.73%
Refund made to customers							$ 7
Duke Energy Carolinas and Duke Energy Progress \| Applications To Combine Utilities \| NCUC \| Subsequent Event
Public Utilities, General Disclosures [Line Items]
Guaranteed savings under the regulatory agreement (at least)												$ 286
Period of guaranteed savings under the regulatory agreement												14 years
Battery storage capacity removed from portfolio (in MW) \| MW												200
Share the benefits contributions to be provided												$ 25
Period of share the benefits contributions to be provided												6 years
Duke Energy Carolinas and Duke Energy Progress \| Winter Storm Fern \| Subsequent Event
Public Utilities, General Disclosures [Line Items]
Number of customers impacted \| customer						200
Duke Energy Carolinas and Duke Energy Progress \| Winter Storm Fern \| Minimum \| Subsequent Event
Public Utilities, General Disclosures [Line Items]
Estimated storm restoration costs						$ 250
Duke Energy Carolinas and Duke Energy Progress \| Winter Storm Fern \| Maximum \| Subsequent Event
Public Utilities, General Disclosures [Line Items]
Estimated storm restoration costs						350
Duke Energy Carolinas and Duke Energy Progress \| Hurricanes Helene, Debby and Milton
Public Utilities, General Disclosures [Line Items]
Capital expenditures								$ 507
Estimated storm restoration costs											$ 762
Duke Energy Carolinas
Public Utilities, General Disclosures [Line Items]
Capital expenditures								4,477	3,966	3,733
Operation, maintenance and other								2,002	1,740	1,774
Regulatory assets							5,232	5,232	4,884		5,232
Other Noncurrent Assets: Regulatory assets							4,502	4,502	4,199		4,502
Duke Energy Carolinas \| Oconee Nuclear Station Subsequent License Renewal \| Nuclear Regulatory Commission \| Oconee
Public Utilities, General Disclosures [Line Items]
Operating license (in years)			20 years
Duke Energy Carolinas \| Winter Storm Fern \| Minimum \| Subsequent Event
Public Utilities, General Disclosures [Line Items]
Estimated storm restoration costs						150
Duke Energy Carolinas \| Winter Storm Fern \| Maximum \| Subsequent Event
Public Utilities, General Disclosures [Line Items]
Estimated storm restoration costs						225
Duke Energy Carolinas \| Hurricanes Helene, Debby and Milton
Public Utilities, General Disclosures [Line Items]
Capital expenditures								408
Estimated storm restoration costs											474
Duke Energy Carolinas \| Natural Disasters and Other Casualty Events \| Hurricanes Helene, Debby and Milton \| NCUC
Public Utilities, General Disclosures [Line Items]
Storm reserves							200	200			200
Duke Energy Progress
Public Utilities, General Disclosures [Line Items]
Capital expenditures								3,428	2,803	2,387
Operation, maintenance and other								1,455	1,388	$ 1,379
Regulatory assets							5,195	5,195	5,181		5,195
Other Noncurrent Assets: Regulatory assets							4,543	4,543	$ 4,555		4,543
Duke Energy Progress \| Winter Storm Fern \| Minimum \| Subsequent Event
Public Utilities, General Disclosures [Line Items]
Estimated storm restoration costs						100
Duke Energy Progress \| Winter Storm Fern \| Maximum \| Subsequent Event
Public Utilities, General Disclosures [Line Items]
Estimated storm restoration costs						$ 125
Duke Energy Progress \| Hurricanes Helene, Debby and Milton
Public Utilities, General Disclosures [Line Items]
Capital expenditures								99
Estimated storm restoration costs											288
Duke Energy Progress \| Natural Disasters and Other Casualty Events \| Hurricanes Helene, Debby and Milton \| NCUC
Public Utilities, General Disclosures [Line Items]
Storm reserves							$ 100	$ 100			$ 100