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Variable Interest Entities (Receivables Sold) (Details) - VIE not primary beneficiary - CRC - USD ($) $ in Millions | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Duke Energy Ohio |  |
Variable Interest Entities [Line Items] |  |
Receivables sold | $ 0 | $ 361
Less: Retained interests | 0 | 150
Net receivables sold | 0 | 211
Duke Energy Indiana |  |
Variable Interest Entities [Line Items] |  |
Receivables sold | 0 | 351
Less: Retained interests | 0 | 208
Net receivables sold | $ 0 | $ 143

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