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Variable Interest Entities (Sales and Cash Flows) (Details) - VIE not primary beneficiary - CRC - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2023 | Mar. 31, 2022
Duke Energy Ohio |  |
Sales |  |
Receivables sold | $ 725 | $ 663
Loss recognized on sale | 9 | 3
Cash flows |  |
Cash proceeds from receivables sold | 750 | 674
Return received on retained interests | 6 | 1
Duke Energy Indiana |  |
Sales |  |
Receivables sold | 942 | 782
Loss recognized on sale | 10 | 4
Cash flows |  |
Cash proceeds from receivables sold | 1,028 | 795
Return received on retained interests | $ 8 | $ 2

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (d)(1) -URI https://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719 + Details
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- Definition Amount of gain (loss) on sale of accounts receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=121570589&loc=d3e107425-111719 + Details
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- Definition Amount of cash inflow from collection on beneficial interest in securitization of receivables. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3179-108585 + Details
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