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Debt and Credit Facilities (Summary of Debt Issuances) (Details) - USD ($)	1 Months Ended
	Jan. 31, 2026	Dec. 31, 2025	Oct. 31, 2025	Sep. 30, 2025	Jun. 30, 2025	Apr. 30, 2025	Jan. 31, 2025
Debt Instrument [Line Items]
Debt issuances				$ 6,794,000,000
Repayments of debt				$ 650,000,000	$ 150,000,000
Subsequent event
Debt Instrument [Line Items]
Repayments of debt			$ 95,000,000
Forecast
Debt Instrument [Line Items]
Repayments of debt	$ 45,000,000	$ 500,000,000
Unsecured Debt maturing September 2030 | Unsecured Debt
Debt Instrument [Line Items]
Interest rate				5.41%
Debt issuances				$ 68,000,000
Unsecured Debt maturing September 2035 | Unsecured Debt
Debt Instrument [Line Items]
Interest rate				6.01%
Debt issuances				$ 43,000,000
Unsecured Debt maturing September 2037 | Unsecured Debt
Debt Instrument [Line Items]
Interest rate				6.11%
Debt issuances				$ 40,000,000
Unsecured Debt maturing September 2035 | Unsecured Debt
Debt Instrument [Line Items]
Interest rate				4.95%
Debt issuances				$ 1,000,000,000
Unsecured Debt maturing September 2055 | Unsecured Debt
Debt Instrument [Line Items]
Interest rate				5.70%
Debt issuances				$ 750,000,000
Secured Debt maturing July 2037 | Secured Debt
Debt Instrument [Line Items]
Interest rate				4.226%
Debt issuances				$ 200,000,000
Secured Debt maturing January 2048 | Secured Debt
Debt Instrument [Line Items]
Interest rate				5.07%
Debt issuances				$ 382,000,000
Secured Debt maturing January 2048 | Secured Debt
Debt Instrument [Line Items]
Interest rate				4.89%
Debt issuances				$ 461,000,000
First Mortgage Bonds maturing March 2030 | First Mortgage Bonds
Debt Instrument [Line Items]
Interest rate				4.85%
Debt issuances				$ 400,000,000
First Mortgage Bonds maturing March 2035 | First Mortgage Bonds
Debt Instrument [Line Items]
Interest rate				5.25%
Debt issuances				$ 700,000,000
First Mortgage Bonds maturing March 2027 | First Mortgage Bonds
Debt Instrument [Line Items]
Interest rate				4.35%
Debt issuances				$ 500,000,000
First Mortgage Bonds maturing March 2035 | First Mortgage Bonds
Debt Instrument [Line Items]
Interest rate				5.05%
Debt issuances				$ 850,000,000
First Mortgage Bonds maturing March 2055 | First Mortgage Bonds
Debt Instrument [Line Items]
Interest rate				5.55%
Debt issuances				$ 750,000,000
First Mortgage Bonds maturing May 2055 | First Mortgage Bonds
Debt Instrument [Line Items]
Interest rate				5.90%
Debt issuances				$ 300,000,000
First Mortgage Bonds maturing June 2035 | First Mortgage Bonds
Debt Instrument [Line Items]
Interest rate				5.30%
Debt issuances				$ 350,000,000
DERF accounts receivable securitization facility due January 2025 | Secured Debt
Debt Instrument [Line Items]
Repayments of debt							$ 500,000,000
DEPR accounts receivable securitization facility due April 2025 | Secured Debt
Debt Instrument [Line Items]
Repayments of debt						$ 400,000,000
Duke Energy (Parent)
Debt Instrument [Line Items]
Debt issuances				1,750,000,000
Duke Energy (Parent) | Unsecured Debt maturing September 2030 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy (Parent) | Unsecured Debt maturing September 2035 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy (Parent) | Unsecured Debt maturing September 2037 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy (Parent) | Unsecured Debt maturing September 2035 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances				1,000,000,000
Duke Energy (Parent) | Unsecured Debt maturing September 2055 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances				750,000,000
Duke Energy (Parent) | Secured Debt maturing July 2037 | Secured Debt
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy (Parent) | Secured Debt maturing January 2048 | Secured Debt
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy (Parent) | Secured Debt maturing January 2048 | Secured Debt
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy (Parent) | First Mortgage Bonds maturing March 2030 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy (Parent) | First Mortgage Bonds maturing March 2035 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy (Parent) | First Mortgage Bonds maturing March 2027 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy (Parent) | First Mortgage Bonds maturing March 2035 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy (Parent) | First Mortgage Bonds maturing March 2055 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy (Parent) | First Mortgage Bonds maturing May 2055 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy (Parent) | First Mortgage Bonds maturing June 2035 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Carolinas
Debt Instrument [Line Items]
Debt issuances				1,682,000,000
Duke Energy Carolinas | Unsecured Debt maturing September 2030 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Carolinas | Unsecured Debt maturing September 2035 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Carolinas | Unsecured Debt maturing September 2037 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Carolinas | Unsecured Debt maturing September 2035 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Carolinas | Unsecured Debt maturing September 2055 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Carolinas | Secured Debt maturing July 2037 | Secured Debt
Debt Instrument [Line Items]
Debt issuances				200,000,000
Duke Energy Carolinas | Secured Debt maturing January 2048 | Secured Debt
Debt Instrument [Line Items]
Debt issuances				382,000,000
Duke Energy Carolinas | Secured Debt maturing January 2048 | Secured Debt
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Carolinas | First Mortgage Bonds maturing March 2030 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				400,000,000
Duke Energy Carolinas | First Mortgage Bonds maturing March 2035 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				700,000,000
Duke Energy Carolinas | First Mortgage Bonds maturing March 2027 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Carolinas | First Mortgage Bonds maturing March 2035 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Carolinas | First Mortgage Bonds maturing March 2055 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Carolinas | First Mortgage Bonds maturing May 2055 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Carolinas | First Mortgage Bonds maturing June 2035 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Progress
Debt Instrument [Line Items]
Debt issuances				2,561,000,000
Duke Energy Progress | Unsecured Debt maturing September 2030 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Progress | Unsecured Debt maturing September 2035 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Progress | Unsecured Debt maturing September 2037 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Progress | Unsecured Debt maturing September 2035 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Progress | Unsecured Debt maturing September 2055 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Progress | Secured Debt maturing July 2037 | Secured Debt
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Progress | Secured Debt maturing January 2048 | Secured Debt
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Progress | Secured Debt maturing January 2048 | Secured Debt
Debt Instrument [Line Items]
Debt issuances				461,000,000
Duke Energy Progress | First Mortgage Bonds maturing March 2030 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Progress | First Mortgage Bonds maturing March 2035 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Progress | First Mortgage Bonds maturing March 2027 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				500,000,000
Duke Energy Progress | First Mortgage Bonds maturing March 2035 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				850,000,000
Duke Energy Progress | First Mortgage Bonds maturing March 2055 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				750,000,000
Duke Energy Progress | First Mortgage Bonds maturing May 2055 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Progress | First Mortgage Bonds maturing June 2035 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Ohio
Debt Instrument [Line Items]
Debt issuances				501,000,000
Duke Energy Ohio | Unsecured Debt maturing September 2030 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances				68,000,000
Duke Energy Ohio | Unsecured Debt maturing September 2035 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances				43,000,000
Duke Energy Ohio | Unsecured Debt maturing September 2037 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances				40,000,000
Duke Energy Ohio | Unsecured Debt maturing September 2035 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Ohio | Unsecured Debt maturing September 2055 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Ohio | Secured Debt maturing July 2037 | Secured Debt
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Ohio | Secured Debt maturing January 2048 | Secured Debt
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Ohio | Secured Debt maturing January 2048 | Secured Debt
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Ohio | First Mortgage Bonds maturing March 2030 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Ohio | First Mortgage Bonds maturing March 2035 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Ohio | First Mortgage Bonds maturing March 2027 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Ohio | First Mortgage Bonds maturing March 2035 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Ohio | First Mortgage Bonds maturing March 2055 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Ohio | First Mortgage Bonds maturing May 2055 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Ohio | First Mortgage Bonds maturing June 2035 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				350,000,000
Duke Energy Indiana
Debt Instrument [Line Items]
Debt issuances				300,000,000
Duke Energy Indiana | Unsecured Debt maturing September 2030 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Indiana | Unsecured Debt maturing September 2035 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Indiana | Unsecured Debt maturing September 2037 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Indiana | Unsecured Debt maturing September 2035 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Indiana | Unsecured Debt maturing September 2055 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Indiana | Secured Debt maturing July 2037 | Secured Debt
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Indiana | Secured Debt maturing January 2048 | Secured Debt
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Indiana | Secured Debt maturing January 2048 | Secured Debt
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Indiana | First Mortgage Bonds maturing March 2030 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Indiana | First Mortgage Bonds maturing March 2035 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Indiana | First Mortgage Bonds maturing March 2027 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Indiana | First Mortgage Bonds maturing March 2035 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Indiana | First Mortgage Bonds maturing March 2055 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				0
Duke Energy Indiana | First Mortgage Bonds maturing May 2055 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				300,000,000
Duke Energy Indiana | First Mortgage Bonds maturing June 2035 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances				$ 0

X

- Definition

Face (par) amount of debt instrument at time of issuance.

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Balance Type:	credit
Period Type:	instant

X

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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X

- 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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Reference 31: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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