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Variable Interest Entities (Sales and Cash Flows) (Details) - Non-consolidated VIEs - CRC - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Duke Energy Ohio |  |  |
Variable Interest Entity [Line Items] |  |  |
Receivables sold | $ 474 | $ 2,578 | $ 2,562
Loss recognized on sale | 7 | 34 | 18
Cash proceeds from receivables sold | 478 | 2,591 | 2,424
Collection fees received | 0 | 1 | 1
Return received on retained interests | 4 | 19 | 10
Duke Energy Indiana |  |  |
Variable Interest Entity [Line Items] |  |  |
Receivables sold | 473 | 3,223 | 3,744
Loss recognized on sale | 6 | 39 | 26
Cash proceeds from receivables sold | 523 | 3,294 | 3,498
Collection fees received | 0 | 2 | 2
Return received on retained interests | $ 4 | $ 25 | $ 15

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- Definition Cash Flows between a transferor and a transferee attributable to newly transferred assets related to either a securitization, asset-backed financing arrangement, or similar transfer in which the transferor has continuing involvement with the transferred financial assets underlying the transaction (including, but not limited to, servicing, recourse, and restrictions on transferor's interests in the transferred financial assets). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 860 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (d)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481326/860-20-50-3 + Details
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