Line of Credit Facility, Increase Limit

No definition available.

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- Definition

Maximum amount of unsecured variable denomination floating rate demand notes available for sale.

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Maximum amount of unsecured variable denomination floating rate demand notes that can be outstanding at any point in time.

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Principal amount of unsecured variable denomination floating rate demand notes that are outstanding at the balance sheet date.

+ 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

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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-Paragraph 1
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+ Details

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Balance Type:	credit
Period Type:	instant

- 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

+ Details

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Period Type:	instant

- Definition

Amount of long-term loans payable classified as other.

+ References

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+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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+ Details

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Balance Type:	debit
Period Type:	duration

- Definition

Indebtedness divided by net capital.

+ References

No definition available.

+ Details

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- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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Debt and Credit Facilities (Narrative) (Details)				3 Months Ended	12 Months Ended
Debt and Credit Facilities (Narrative) (Details)	Aug. 31, 2020 USD ($)	Mar. 27, 2020 USD ($)	Mar. 19, 2020 USD ($)	Jun. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Debt Instrument [Line Items]
Demand notes, maximum amount available for sale					$ 3,000,000,000
Demand notes, maximum amount outstanding					1,500,000,000
Principal amount of demand notes					1,168,000,000		$ 1,049,000,000
Other loans outstanding against cash surrender value of life insurance policies					$ 817,000,000		777,000,000
Maximum
Debt Instrument [Line Items]
Debt to total capitalization percentage, for each borrower					0.65
June 2017 Three Year Revolving Credit Facility
Debt Instrument [Line Items]
Facility size					$ 1,000,000,000
Term of debt instrument					3 years
Long-term line of credit					$ 500,000,000	$ 500,000,000
Repayments of debt				$ 500,000,000
Revolving Credit Facility
Debt Instrument [Line Items]
Facility size					8,000,000,000			$ 8,000,000,000
Duke Energy (Parent) \| Line of Credit \| 364-day Term Loan Credit Agreement
Debt Instrument [Line Items]
Facility size						1,500,000,000
Drawings on credit facility		$ 188,000,000	$ 1,500,000,000
Line of credit facility, increase limit						$ 500,000,000
Duke Energy Progress
Debt Instrument [Line Items]
Other loans outstanding against cash surrender value of life insurance policies					$ 35,000,000		36,000,000
Duke Energy Progress \| Maximum
Debt Instrument [Line Items]
Debt to total capitalization percentage, for each borrower					0.65
Duke Energy Progress \| Revolving Credit Facility
Debt Instrument [Line Items]
Facility size					$ 1,250,000,000
Duke Energy Progress \| Revolving Credit Facility \| Line of Credit
Debt Instrument [Line Items]
Facility size									$ 700,000,000
Term of debt instrument					2 years
Long-term line of credit							$ 700,000,000
Repayments of debt	$ 700,000,000
Piedmont \| Maximum
Debt Instrument [Line Items]
Debt to total capitalization percentage, for each borrower					0.70
Piedmont \| Revolving Credit Facility
Debt Instrument [Line Items]
Facility size					$ 600,000,000
Duke Energy Carolinas \| Maximum
Debt Instrument [Line Items]
Debt to total capitalization percentage, for each borrower					0.65
Duke Energy Carolinas \| Revolving Credit Facility
Debt Instrument [Line Items]
Facility size					$ 1,475,000,000
Progress Energy \| Maximum
Debt Instrument [Line Items]
Debt to total capitalization percentage, for each borrower					0.65
Duke Energy Florida \| Maximum
Debt Instrument [Line Items]
Debt to total capitalization percentage, for each borrower					0.65
Duke Energy Florida \| Revolving Credit Facility
Debt Instrument [Line Items]
Facility size					$ 800,000,000
Duke Energy Ohio \| Maximum
Debt Instrument [Line Items]
Debt to total capitalization percentage, for each borrower					0.65
Duke Energy Ohio \| Revolving Credit Facility
Debt Instrument [Line Items]
Facility size					$ 625,000,000
Duke Energy Indiana \| Maximum
Debt Instrument [Line Items]
Debt to total capitalization percentage, for each borrower					0.65
Duke Energy Indiana \| Revolving Credit Facility
Debt Instrument [Line Items]
Facility size					$ 600,000,000