Debt Instrument, Term, Extension Period

No definition available.

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

- Definition

Unsecured Variable Denomination Floating Rate Demand Notes, Amount Available For Sale

+ References

No definition available.

+ Details

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

- Definition

Unsecured Variable Denomination Floating Rate Demand Notes Maximum Amount Outstanding

+ References

No definition available.

+ Details

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Namespace Prefix:	duk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Gross amount of debt extinguished.

+ References

No definition available.

+ Details

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

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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Namespace Prefix:
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Balance Type:
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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember
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Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

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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_CreditFacilityAxis=duk_June2017ThreeYearRevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Debt and Credit Facilities (Narrative) (Details) - USD ($)		1 Months Ended		9 Months Ended
	Mar. 09, 2022	Sep. 30, 2022	Mar. 31, 2022	Sep. 30, 2022	Oct. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Demand notes, maximum amount available for sale		$ 4,000,000,000		$ 4,000,000,000
Demand notes, maximum amount outstanding		2,000,000,000		2,000,000,000
Master Credit Facility
Debt Instrument [Line Items]
Facility size		9,000,000,000		9,000,000,000		$ 8,000,000,000
Master Credit Facility \| Duke Energy Florida
Debt Instrument [Line Items]
Facility size		$ 1,350,000,000		$ 1,350,000,000
Master Credit Facility \| Term Loan Facility \| Duke Energy (Parent)
Debt Instrument [Line Items]
Facility size	$ 1,400,000,000
Extension period (in years)	2 years
Master Credit Facility \| Term Loan Facility \| Progress Energy
Debt Instrument [Line Items]
Amount of debt closed			$ 2,500,000,000
Master Credit Facility \| Term Loan Facility \| Duke Energy Florida \| Subsequent event
Debt Instrument [Line Items]
Facility size					$ 800,000,000
June 2017 Three Year Revolving Credit Facility
Debt Instrument [Line Items]
Facility term (in years)		3 years	3 years	3 years