Hydrogen-Capable Advanced-Class Simple-Cycle Combustion Turbines, Number

No definition available.

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

- Definition

Impairment Of Assets And Other Charges

+ References

No definition available.

+ Details

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

- Definition

Public Utilities, Combustion Turbines, in Megawatts

+ References

No definition available.

+ Details

Name:	duk_PublicUtilitiesCombustionTurbinesInMegawatts
Namespace Prefix:	duk_
Data Type:	dtr-types1:powerItemType
Balance Type:	na
Period Type:	instant

- Definition

Public Utilities, Customer Giveback

+ References

No definition available.

+ Details

Name:	duk_PublicUtilitiesCustomerGiveback
Namespace Prefix:	duk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Public Utilities, Proposed Rate, Period

+ References

No definition available.

+ Details

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

- Definition

Public Utilities, Settlement Rate, Amount

+ References

No definition available.

+ Details

Name:	duk_PublicUtilitiesSettlementRateAmount
Namespace Prefix:	duk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Public Utilities, Settlement Rate, Period

+ References

No definition available.

+ Details

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

- Definition

Amount of interest expense classified as nonoperating.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 22
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-22

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

+ Details

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

- Definition

Percentage of public utility's approved equity to capital, including debt and equity.

+ References

No definition available.

+ Details

Name:	us-gaap_PublicUtilitiesApprovedEquityCapitalStructurePercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
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

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

+ References

No definition available.

+ Details

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

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

- Details

Name:	us-gaap_PublicUtilitiesRegulatoryProceedingAxis=duk_A2023NorthCarolinaRateCaseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RegulatoryAgencyAxis=duk_NCUCMember
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:	us-gaap_PublicUtilitiesRegulatoryProceedingAxis=duk_A2023NorthCarolinaRateCaseRetailAllocatedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PublicUtilitiesRegulatoryProceedingAxis=duk_A2024SouthCarolinaRateCaseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RegulatoryAgencyAxis=duk_PSCSCMember
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:	us-gaap_PublicUtilitiesRegulatoryProceedingAxis=duk_MarshallCombustionTurbinesCPCNProceedingsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Regulatory Matters (Regulatory Matters Narrative - Duke Energy Carolinas) (Details) $ in Millions								3 Months Ended		4 Months Ended	6 Months Ended		12 Months Ended
	Jul. 03, 2024 USD ($)	May 17, 2024 USD ($)	Mar. 14, 2024 USD ($) numberOfCombustionTurbines MW	Jan. 04, 2024	Dec. 15, 2023	Aug. 22, 2023 USD ($)	Jan. 19, 2023	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Dec. 31, 2026 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Dec. 14, 2027 USD ($)	Dec. 14, 2026 USD ($)	Aug. 31, 2026 USD ($)	Dec. 14, 2025 USD ($)	Aug. 31, 2025 USD ($)	Dec. 14, 2024 USD ($)	Aug. 31, 2024 USD ($)
Public Utilities, General Disclosures [Line Items]
Impairment of assets and other charges								$ 43	$ 0		$ 44	$ 8
Operation, maintenance and other								1,320	1,375		2,699	2,685
Interest Expense								(824)	(727)		(1,641)	(1,447)
Duke Energy Carolinas
Public Utilities, General Disclosures [Line Items]
Impairment of assets and other charges								33	4		34	6
Operation, maintenance and other								444	421		895	861
Interest Expense								(168)	$ (172)		(348)	$ (332)
2023 North Carolina Rate Case \| NCUC \| Duke Energy Carolinas
Public Utilities, General Disclosures [Line Items]
Proposed rate period (in years)							3 years
Settlement rate, amount						$ 19,500
Settlement rate, period (in years)						3 years
Approved return on equity percentage (as a percent)					10.10%
Public utilities, approved equity capital structure, percentage (as a percent)					53.00%
2023 North Carolina Rate Case \| NCUC \| Duke Energy Carolinas \| Forecast
Public Utilities, General Disclosures [Line Items]
Requested rate increase (decrease), amount										$ 823					$ 150		$ 172		$ 501
Requested rate increase (decrease) (as a percent)										15.70%
Approved rate increase (decrease), amount													$ 768	$ 158		$ 174		$ 436
2023 North Carolina Rate Case, Retail Allocated \| NCUC \| Duke Energy Carolinas
Public Utilities, General Disclosures [Line Items]
Settlement rate, amount						$ 4,600
2024 South Carolina Rate Case \| PSCSC \| Duke Energy Carolinas
Public Utilities, General Disclosures [Line Items]
Proposed rate period (in years)				2 years
Impairment of assets and other charges								33			33
Operation, maintenance and other								2			2
Interest Expense								$ 11			$ 11
Approved rate increase (decrease), amount		$ 240
Approved return on equity percentage (as a percent)		9.94%
Public utilities, approved equity capital structure, percentage (as a percent)		51.21%
EDIT		$ 84
2024 South Carolina Rate Case \| PSCSC \| Duke Energy Carolinas \| Subsequent event
Public Utilities, General Disclosures [Line Items]
Settlement rate, amount	$ 7,400
2024 South Carolina Rate Case \| PSCSC \| Duke Energy Carolinas \| Forecast
Public Utilities, General Disclosures [Line Items]
Approved rate increase (decrease), amount	$ 150
Marshall Combustion Turbines CPCN Proceedings \| NCUC \| Duke Energy Carolinas
Public Utilities, General Disclosures [Line Items]
Requested rate increase (decrease), amount			$ 104
Requested rate increase (decrease) (as a percent)			2.20%
New combustion turbines (in megawatts) \| MW			850
Hydrogen-capable CTs \| numberOfCombustionTurbines			2