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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 |

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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 Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-14 + Details
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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 Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 5A -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481203/810-10-50-5A + Details
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