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Variable Interest Entities (Schedule of Non-Consolidated VIEs) (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | --- | ---
Variable Interest Entity [Line Items] |  |  |
Receivables from affiliated companies | $ 2,232 | $ 1,112 |
Investments in equity method unconsolidated affiliates | 353 | 492 |
Other noncurrent assets | 3,509 | 3,964 |
Total Assets | 186,343 | 176,893 | $ 178,086
Other current liabilities | 2,084 | 2,319 |
Other noncurrent liabilities | 1,556 | 1,393 |
Duke Energy Ohio |  |  |
Variable Interest Entity [Line Items] |  |  |
Receivables from affiliated companies | 447 | 112 |
Other noncurrent assets | 82 | 84 |
Total Assets | 12,768 | 12,216 | 11,506
Other current liabilities | 67 | 65 |
Other noncurrent liabilities | 91 | 86 |
Duke Energy Ohio | Affiliated entity |  |  |
Variable Interest Entity [Line Items] |  |  |
Receivables from affiliated companies | 11 | 239 |
Duke Energy Indiana |  |  |
Variable Interest Entity [Line Items] |  |  |
Receivables from affiliated companies | 423 | 156 |
Other noncurrent assets | 323 | 325 |
Total Assets | 15,727 | 14,811 | $ 14,654
Other current liabilities | 183 | 184 |
Other noncurrent liabilities | 19 | 0 |
Duke Energy Indiana | Affiliated entity |  |  |
Variable Interest Entity [Line Items] |  |  |
Receivables from affiliated companies | 1 | 197 |
Non-consolidated VIEs | Duke Energy Ohio |  |  |
Variable Interest Entity [Line Items] |  |  |
Total Assets |  | 150 |
Net assets |  | 150 |
Non-consolidated VIEs | Duke Energy Ohio | Affiliated entity |  |  |
Variable Interest Entity [Line Items] |  |  |
Receivables from affiliated companies |  | 150 |
Non-consolidated VIEs | Duke Energy Indiana |  |  |
Variable Interest Entity [Line Items] |  |  |
Total Assets |  | 208 |
Net assets |  | 208 |
Non-consolidated VIEs | Duke Energy Indiana | Affiliated entity |  |  |
Variable Interest Entity [Line Items] |  |  |
Receivables from affiliated companies |  | 208 |
Non-consolidated VIEs | Pipeline Investments |  |  |
Variable Interest Entity [Line Items] |  |  |
Investments in equity method unconsolidated affiliates |  | 67 |
Other noncurrent assets | 17 | 43 |
Total Assets | 17 | 110 |
Other current liabilities | 2 | 4 |
Other noncurrent liabilities |  | 5 |
Total liabilities | 2 | 9 |
Net assets | $ 15 | $ 101 |

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