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Variable Interest Entities (Receivables Sold) (Details) - VIE not primary beneficiary - CRC - USD ($) $ in Millions | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Duke Energy Ohio |  |
Variable Interest Entities [Line Items] |  |
Receivables sold | $ 263 | $ 269
Less: Retained interests | 65 | 79
Net receivables sold | 198 | 190
Duke Energy Indiana |  |
Variable Interest Entities [Line Items] |  |
Receivables sold | 305 | 328
Less: Retained interests | 80 | 97
Net receivables sold | $ 225 | $ 231

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- Definition Principal amount of transferred financial assets in which the transferor has continuing involvement with the assets underlying the transaction. Continuing involvement includes, but is not limited to, servicing, recourse, and restrictions on transferor's interests in transferred financial assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719 + Details
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