v3.3.0.814

Variable Interest Entities (Schedule of Non-Consolidated VIEs) (Details) - USD ($) $ in Millions | Sep. 30, 2015 | Dec. 31, 2014
--- | --- | ---
Variable Interest Entities [Line Items] |  |
Investments in equity method unconsolidated affiliates | $ 501 | $ 358
Investments and other assets | 3,205 | 3,008
Other current liabilities | 2,052 | 2,188
Deferred credits and other liabilities | 32,982 | 31,364
Variable Interest Entity, Not Primary Beneficiary [Member] |  |
Variable Interest Entities [Line Items] |  |
Investments in equity method unconsolidated affiliates | 348 | 188
Investments and other assets |  | 4
Total assets | 348 | 192
Other current liabilities | 2 | 3
Deferred credits and other liabilities | 14 | 14
Total liabilities | 16 | 17
Net assets | 332 | 175
Renewables [Member] | Variable Interest Entity, Not Primary Beneficiary [Member] |  |
Variable Interest Entities [Line Items] |  |
Investments in equity method unconsolidated affiliates | 223 | 150
Total assets | 223 | 150
Total liabilities | 0 |
Net assets | 223 | 150
Other VIEs [Member] | Variable Interest Entity, Not Primary Beneficiary [Member] |  |
Variable Interest Entities [Line Items] |  |
Investments in equity method unconsolidated affiliates | 125 | 38
Investments and other assets |  | 4
Total assets | 125 | 42
Other current liabilities | 2 | 3
Deferred credits and other liabilities | 14 | 14
Total liabilities | 16 | 17
Net assets | 109 | 25
Duke Energy Ohio [Member] |  |
Variable Interest Entities [Line Items] |  |
Investments and other assets | 17 | 23
Other current liabilities | 151 | 66
Deferred credits and other liabilities | 2,006 | 2,281
Duke Energy Ohio [Member] | Variable Interest Entity, Not Primary Beneficiary [Member] |  |
Variable Interest Entities [Line Items] |  |
Receivables | 43 | 91
Total assets | 43 | 91
Total liabilities | 0 |
Net assets | 43 | 91
Duke Energy Indiana [Member] |  |
Variable Interest Entities [Line Items] |  |
Other current liabilities | 89 | 98
Deferred credits and other liabilities | 3,309 | 2,730
Duke Energy Indiana [Member] | Variable Interest Entity, Not Primary Beneficiary [Member] |  |
Variable Interest Entities [Line Items] |  |
Receivables | 64 | 113
Total assets | 64 | 113
Total liabilities | 0 |
Net assets | $ 64 | $ 113

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