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Variable Interest Entities (Schedule of Accounts Receivable Securitizations) (Details) - USD ($) $ in Millions	1 Months Ended
	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Jan. 31, 2025	Dec. 31, 2024
Variable Interest Entities [Line Items]
Long-Term Debt	$ 79,301				$ 76,340
Repayments of debt	650	$ 150
Duke Energy Carolinas | VIE primary beneficiary | DERF
Variable Interest Entities [Line Items]
Long-Term Debt	0				500
Accounts receivable from securitization	0				1,054
Duke Energy Carolinas | VIE primary beneficiary | DERF | Secured Debt
Variable Interest Entities [Line Items]
Repayments of debt				$ 500
Duke Energy Progress | VIE primary beneficiary | DEPR
Variable Interest Entities [Line Items]
Long-Term Debt	0				400
Accounts receivable from securitization	$ 0				$ 835
Duke Energy Progress | VIE primary beneficiary | DEPR | Secured Debt
Variable Interest Entities [Line Items]
Repayments of debt			$ 400

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- Definition

The amount owed to the reporting entity by counterparties in securitized loan transactions.

+ References

No definition available.

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- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt classified as noncurrent. Excludes lease obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Amount of cash outflow for short-term and long-term debt. Excludes payment of lease obligation.

+ References

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