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Variable Interest Entities (Narrative) (Details) - USD ($) | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Nov. 30, 2021 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Feb. 28, 2021
Consolidated VIEs |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |
Financial support |  | $ 0 | $ 0 | $ 0 |
ACP | Current Liabilities | Atlantic Coast Pipeline (ACP) |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |
Guarantor obligations settled |  |  |  |  | $ 855,000,000
ACP | Non-consolidated VIEs |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |
VIE Ownership interest |  | 47.00% |  |  |
Atlantic Coast Pipeline (ACP) | Current Liabilities | Atlantic Coast Pipeline (ACP) |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |
Guarantor obligations settled |  |  |  |  | $ 855,000,000
CRC |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |
Variation in credit losses |  | 10.00% |  |  |
Variation in discount rates |  | 20.00% |  |  |
CRC | Consolidated VIEs |  |  |  |  |
Variable Interest Entity [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 |  |  |
CRC | Duke Energy Ohio | Non-consolidated VIEs |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |
Fixed interest rate added to LIBOR to compute variable rate |  | 1.00% |  |  |
DECNCSF | Duke Energy Carolinas | Consolidated VIEs |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |
Proceeds from issuance of senior secured bonds | $ 237,000,000 |  |  |  |
VIE With Ownership In Portfolio Of Wind Projects | Non-consolidated VIEs |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |
VIE Ownership interest |  | 50.00% |  |  |
OVEC | Duke Energy Ohio | Non-consolidated VIEs |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |
VIE Ownership interest |  | 9.00% |  |  |
DEPNCSF | Duke Energy Progress | Consolidated VIEs |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |
Proceeds from issuance of senior secured bonds | $ 770,000,000 |  |  |  |

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- Definition Percent of proceeds from accounts receivable securitization received as subordinated note. + References No definition available. + Details
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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 -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 5A -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123419778&loc=SL6759159-111685 + Details
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