Variable Interest Entities (Narrative) (Details) - VIE primary beneficiary - USD ($)	1 Months Ended	9 Months Ended
Nov. 30, 2021	Sep. 30, 2023
Variable Interest Entities [Line Items]
Variable interest entity, financial or other support, amount		$ 0
CRC
Variable Interest Entities [Line Items]
Percent of proceeds received as cash		75.00%
Percent of proceeds received as subordinated note		25.00%
Minimum equity balance required by Cinergy Receivables		$ 3,000,000
DECNCSF \| Duke Energy Carolinas
Variable Interest Entities [Line Items]
Proceeds from issuance of senior secured bonds	$ 237,000,000
DEPNCSF \| Duke Energy Progress
Variable Interest Entities [Line Items]
Proceeds from issuance of senior secured bonds	$ 770,000,000

Percent of proceeds from accounts receivable securitization received as cash.

No definition available.

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- Definition

Percent of proceeds from accounts receivable securitization received as subordinated note.

+ References

No definition available.

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- Definition

Minimum equity Balance required by Cinergy Receivables

+ References

No definition available.

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- Definition

The cash inflow from a borrowing with the highest claim on the assets of the entity in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle, if longer).

+ References

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- Definition

The amount of financial or other support the reporting entity has provided (explicitly or implicitly) to the Variable Interest Entity (VIE) that it was not previously contractually required to provide or that the reporting entity intends to provide, including, for example, situations in which the reporting entity assisted the VIE in obtaining another type of support.

+ References

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- 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.

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