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Variable Interest Entities (Schedule of Non-Consolidated VIEs) (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | ---
Variable Interest Entity [Line Items] |  |  |
Receivables from affiliated companies | $ 1,112 | $ 1,309 |
Investments in equity method unconsolidated affiliates | 492 | 455 |
Other noncurrent assets | 3,964 | 3,400 |
Total Assets | 176,893 | 178,086 | $ 169,587
Other current liabilities | 2,319 | 2,167 |
Other noncurrent liabilities | 1,393 | 1,502 |
Duke Energy Ohio |  |  |
Variable Interest Entity [Line Items] |  |  |
Receivables from affiliated companies | 112 | 73 |
Other noncurrent assets | 84 | 71 |
Total Assets | 12,216 | 11,506 | $ 10,774
Other current liabilities | 65 | 74 |
Other noncurrent liabilities | 86 | 96 |
Duke Energy Ohio | Affiliated entity |  |  |
Variable Interest Entity [Line Items] |  |  |
Receivables from affiliated companies | 239 | 247 |
Duke Energy Indiana |  |  |
Variable Interest Entity [Line Items] |  |  |
Receivables from affiliated companies | 156 | 112 |
Other noncurrent assets | 325 | 254 |
Total Assets | 14,811 | 14,654 |
Other current liabilities | 184 | 161 |
Other noncurrent liabilities |  | 65 |
Duke Energy Indiana | Affiliated entity |  |  |
Variable Interest Entity [Line Items] |  |  |
Receivables from affiliated companies | 197 | 298 |
Non-consolidated VIEs | Duke Energy Ohio |  |  |
Variable Interest Entity [Line Items] |  |  |
Total Assets | 150 | 198 |
Net assets | 150 | 198 |
Non-consolidated VIEs | Duke Energy Ohio | Affiliated entity |  |  |
Variable Interest Entity [Line Items] |  |  |
Receivables from affiliated companies | 150 | 198 |
Non-consolidated VIEs | Duke Energy Indiana |  |  |
Variable Interest Entity [Line Items] |  |  |
Total Assets | 208 | 317 |
Net assets | 208 | 317 |
Non-consolidated VIEs | Duke Energy Indiana | Affiliated entity |  |  |
Variable Interest Entity [Line Items] |  |  |
Receivables from affiliated companies | 208 | 317 |
Non-consolidated VIEs | Pipeline Investments |  |  |
Variable Interest Entity [Line Items] |  |  |
Investments in equity method unconsolidated affiliates | 67 | 43 |
Other noncurrent assets | 43 | 45 |
Total Assets | 110 | 88 |
Other current liabilities | 4 | 59 |
Other noncurrent liabilities | 5 | 47 |
Total liabilities | 9 | 106 |
Net assets | $ 101 | $ (18) |

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