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Variable Interest Entities (Schedule of Accounts Receivable Securitizations) (Details) - USD ($) | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Variable Interest Entities [Line Items] |  |
Long-Term Debt | $ 69,107,000,000 | $ 65,873,000,000
Duke Energy Carolinas |  |
Variable Interest Entities [Line Items] |  |
Long-Term Debt | 14,787,000,000 | 12,948,000,000
Duke Energy Progress |  |
Variable Interest Entities [Line Items] |  |
Long-Term Debt | 11,527,000,000 | 10,568,000,000
Duke Energy Florida |  |
Variable Interest Entities [Line Items] |  |
Long-Term Debt | 9,353,000,000 | 9,381,000,000
CRC | VIE primary beneficiary |  |
Variable Interest Entities [Line Items] |  |
Facility size | 350,000,000 |
Long-Term Debt | 350,000,000 | 350,000,000
Accounts receivable from securitization | 784,000,000 | 917,000,000
DERF | Duke Energy Carolinas | VIE primary beneficiary |  |
Variable Interest Entities [Line Items] |  |
Facility size | 500,000,000 |
Long-Term Debt | 500,000,000 | 471,000,000
Accounts receivable from securitization | 782,000,000 | 928,000,000
DEPR | Duke Energy Progress | VIE primary beneficiary |  |
Variable Interest Entities [Line Items] |  |
Facility size | 400,000,000 |
Long-Term Debt | 400,000,000 | 400,000,000
Accounts receivable from securitization | 654,000,000 | 793,000,000
DEFR | Duke Energy Florida | VIE primary beneficiary |  |
Variable Interest Entities [Line Items] |  |
Facility size | 325,000,000 |
Long-Term Debt | 250,000,000 | 250,000,000
Accounts receivable from securitization | $ 443,000,000 | $ 490,000,000

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