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Debt and Credit Facilities (Narrative) (Details) - USD ($) |  | 1 Months Ended | 3 Months Ended |
--- | --- | --- | --- | ---
Mar. 09, 2022 | Mar. 31, 2022 | Mar. 31, 2022 | Mar. 31, 2021
Master Credit Facility |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Facility size |  | $ 9,000,000,000 | $ 9,000,000,000 | $ 8,000,000,000
Master Credit Facility | Term Loan Facility | Duke Energy (Parent) |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Facility size | $ 1,400,000,000 |  |  |
Extension period | 2 years |  |  |
Master Credit Facility | Term Loan Facility | Progress Energy |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Amount of debt closed |  | $ 2,500,000,000 |  |
June 2017 Three Year Revolving Credit Facility |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Facility term |  |  | 3 years |

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- Definition Debt Instrument, Term, Extension Period + References No definition available. + Details
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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. + References No definition available. + Details
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- 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
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- Definition Gross amount of debt extinguished. + References No definition available. + Details
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- 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 http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Details
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- Details
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- Details
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- Details
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