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Variable Interest Entities (Schedule of Non-Consolidated VIEs) (Details) - USD ($) $ in Millions | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Variable Interest Entities [Line Items] |  |
Receivables from affiliated companies | $ 2,253 | $ 3,019
Investments in equity method unconsolidated affiliates | 502 | 492
Other noncurrent assets | 4,072 | 3,964
Total Assets | 178,670 | 176,893
Other current liabilities | 2,084 | 2,319
Other | 1,352 | 1,393
Duke Energy Ohio |  |
Variable Interest Entities [Line Items] |  |
Receivables from affiliated companies | 437 | 112
Other noncurrent assets | 98 | 84
Total Assets | 12,305 | 12,216
Other current liabilities | 64 | 65
Other | 87 | 86
Duke Energy Ohio | Affiliated Entity |  |
Variable Interest Entities [Line Items] |  |
Receivables from affiliated companies | 3 | 239
Duke Energy Ohio | VIE not primary beneficiary |  |
Variable Interest Entities [Line Items] |  |
Investments in equity method unconsolidated affiliates | 0 | 0
Other noncurrent assets | 0 | 0
Total Assets | 0 | 150
Other current liabilities | 0 | 0
Other | 0 | 0
Total liabilities | 0 | 0
Net assets | 0 | 150
Duke Energy Ohio | VIE not primary beneficiary | Affiliated Entity |  |
Variable Interest Entities [Line Items] |  |
Receivables from affiliated companies | 0 | 150
Duke Energy Indiana |  |
Variable Interest Entities [Line Items] |  |
Receivables from affiliated companies | 429 | 156
Other noncurrent assets | 353 | 325
Total Assets | 14,940 | 14,811
Other current liabilities | 179 | 184
Other | 13 | 0
Duke Energy Indiana | Affiliated Entity |  |
Variable Interest Entities [Line Items] |  |
Receivables from affiliated companies | 12 | 197
Duke Energy Indiana | VIE not primary beneficiary |  |
Variable Interest Entities [Line Items] |  |
Investments in equity method unconsolidated affiliates | 0 | 0
Other noncurrent assets | 0 | 0
Total Assets | 0 | 208
Other current liabilities | 0 | 0
Other | 0 | 0
Total liabilities | 0 | 0
Net assets | 0 | 208
Duke Energy Indiana | VIE not primary beneficiary | Affiliated Entity |  |
Variable Interest Entities [Line Items] |  |
Receivables from affiliated companies | 0 | 208
Pipeline Investments | VIE not primary beneficiary |  |
Variable Interest Entities [Line Items] |  |
Investments in equity method unconsolidated affiliates | 63 | 67
Other noncurrent assets | 30 | 43
Total Assets | 93 | 110
Other current liabilities | 1 | 4
Other | 6 | 5
Total liabilities | 7 | 9
Net assets | 86 | 101
Pipeline Investments | VIE not primary beneficiary | Affiliated Entity |  |
Variable Interest Entities [Line Items] |  |
Receivables from affiliated companies | $ 0 | $ 0

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