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Variable Interest Entities (Schedule of Accounts Receivable Securitizations) (Details) - USD ($) $ in Millions | 1 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2025 | Jan. 31, 2025 | Jun. 30, 2025 | Dec. 31, 2024
Variable Interest Entities [Line Items] |  |  |  |
Long-Term Debt |  |  | $ 78,914 | $ 76,340
Duke Energy Carolinas |  |  |  |
Variable Interest Entities [Line Items] |  |  |  |
Long-Term Debt |  |  | 18,022 | 16,669
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 |  |  |  |
Variable Interest Entities [Line Items] |  |  |  |
Long-Term Debt |  |  | 13,483 | 11,371
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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