v3.3.0.814

Derivatives and Hedging (Schedule of Offsetting Assets and Liabilities) (Details) - USD ($) $ in Millions | Sep. 30, 2015 | Dec. 31, 2014
--- | --- | ---
Offsetting Derivative Assets [Abstract] |  |
Gross amounts recognized | $ 33 | $ 351
Net amounts recognized on the Condensed Consolidated Balance Sheet | 33 | 110
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 406 | 909
Net amounts recognized on the Condensed Consolidated Balance Sheet | 406 | 668
Current Assets, Other [Member] |  |
Offsetting Derivative Assets [Abstract] |  |
Gross amounts recognized | 26 | 210
Gross amounts offset | (2) | (153)
Net amount subject to master netting | 24 | 57
Net amounts recognized on the Condensed Consolidated Balance Sheet | 24 | 57
Investments And Other Assets, Other [Member] |  |
Offsetting Derivative Assets [Abstract] |  |
Gross amounts recognized | 7 | 136
Gross amounts offset | (2) | (88)
Net amount subject to master netting | 5 | 48
Amounts not subject to master netting |  | 5
Net amounts recognized on the Condensed Consolidated Balance Sheet | 5 | 53
Other Current Liabilities [Member] |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 257 | 573
Gross amounts offset | (15) | (213)
Net amounts subject to master netting | 242 | 360
Amounts not subject to master netting |  | 1
Net amounts recognized on the Condensed Consolidated Balance Sheet | 242 | 361
Other Noncurrent Liabilities [Member] |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 144 | 319
Gross amounts offset | (9) | (173)
Net amounts subject to master netting | 135 | 146
Amounts not subject to master netting | 5 | 16
Net amounts recognized on the Condensed Consolidated Balance Sheet | 140 | 162
Duke Energy Carolinas [Member] |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 33 | 19
Net amounts recognized on the Condensed Consolidated Balance Sheet | 33 | 19
Duke Energy Carolinas [Member] | Other Current Liabilities [Member] |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 25 | 14
Net amounts subject to master netting | 25 | 14
Net amounts recognized on the Condensed Consolidated Balance Sheet | 25 | 14
Duke Energy Carolinas [Member] | Other Noncurrent Liabilities [Member] |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 8 | 5
Net amounts subject to master netting | 8 | 5
Net amounts recognized on the Condensed Consolidated Balance Sheet | 8 | 5
Progress Energy [Member] |  |
Offsetting Derivative Assets [Abstract] |  |
Gross amounts recognized | 13 | 2
Net amounts recognized on the Condensed Consolidated Balance Sheet | 13 | 4
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 309 | 371
Net amounts recognized on the Condensed Consolidated Balance Sheet | 309 | 373
Progress Energy [Member] | Current Assets, Other [Member] |  |
Offsetting Derivative Assets [Abstract] |  |
Gross amounts recognized | 7 | 2
Gross amounts offset | (1) | (2)
Net amount subject to master netting | 6 |
Net amounts recognized on the Condensed Consolidated Balance Sheet | 6 |
Progress Energy [Member] | Investments And Other Assets, Other [Member] |  |
Offsetting Derivative Assets [Abstract] |  |
Gross amounts recognized | 6 |
Gross amounts offset | (2) |
Net amount subject to master netting | 4 |
Net amounts recognized on the Condensed Consolidated Balance Sheet | 4 |
Progress Energy [Member] | Other Current Liabilities [Member] |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 215 | 289
Gross amounts offset | (14) | (17)
Net amounts subject to master netting | 201 | 272
Net amounts recognized on the Condensed Consolidated Balance Sheet | 201 | 272
Progress Energy [Member] | Other Noncurrent Liabilities [Member] |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 89 | 82
Gross amounts offset | (9) | (8)
Net amounts subject to master netting | 80 | 74
Amounts not subject to master netting | 5 |
Net amounts recognized on the Condensed Consolidated Balance Sheet | 85 | 74
Duke Energy Progress [Member] |  |
Offsetting Derivative Assets [Abstract] |  |
Gross amounts recognized | 2 |
Net amounts recognized on the Condensed Consolidated Balance Sheet | 2 |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 95 | 132
Net amounts recognized on the Condensed Consolidated Balance Sheet | 95 | 132
Duke Energy Progress [Member] | Current Assets, Other [Member] |  |
Offsetting Derivative Assets [Abstract] |  |
Gross amounts recognized | 2 |
Net amount subject to master netting | 2 |
Net amounts recognized on the Condensed Consolidated Balance Sheet | 2 |
Duke Energy Progress [Member] | Other Current Liabilities [Member] |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 77 | 109
Net amounts subject to master netting | 77 | 109
Net amounts recognized on the Condensed Consolidated Balance Sheet | 77 | 109
Duke Energy Progress [Member] | Other Noncurrent Liabilities [Member] |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 18 | 23
Net amounts subject to master netting | 18 | 23
Net amounts recognized on the Condensed Consolidated Balance Sheet | 18 | 23
Duke Energy Florida [Member] |  |
Offsetting Derivative Assets [Abstract] |  |
Gross amounts recognized | 11 | 2
Net amounts recognized on the Condensed Consolidated Balance Sheet | 11 | 4
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 209 | 239
Net amounts recognized on the Condensed Consolidated Balance Sheet | 209 | 241
Duke Energy Florida [Member] | Current Assets, Other [Member] |  |
Offsetting Derivative Assets [Abstract] |  |
Gross amounts recognized | 5 | 2
Gross amounts offset | (1) | (2)
Net amount subject to master netting | 4 |
Net amounts recognized on the Condensed Consolidated Balance Sheet | 4 |
Duke Energy Florida [Member] | Investments And Other Assets, Other [Member] |  |
Offsetting Derivative Assets [Abstract] |  |
Gross amounts recognized | 6 |
Gross amounts offset | (2) |
Net amount subject to master netting | 4 |
Net amounts recognized on the Condensed Consolidated Balance Sheet | 4 |
Duke Energy Florida [Member] | Other Current Liabilities [Member] |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 138 | 180
Gross amounts offset | (14) | (17)
Net amounts subject to master netting | 124 | 163
Net amounts recognized on the Condensed Consolidated Balance Sheet | 124 | 163
Duke Energy Florida [Member] | Other Noncurrent Liabilities [Member] |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 71 | 59
Gross amounts offset | (9) | (8)
Net amounts subject to master netting | 62 | 51
Net amounts recognized on the Condensed Consolidated Balance Sheet | 62 | 51
Duke Energy Ohio [Member] |  |
Offsetting Derivative Assets [Abstract] |  |
Gross amounts recognized | 4 | 341
Net amounts recognized on the Condensed Consolidated Balance Sheet | 4 | 49
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 7 | 473
Net amounts recognized on the Condensed Consolidated Balance Sheet | 7 | 181
Duke Energy Ohio [Member] | Current Assets, Other [Member] |  |
Offsetting Derivative Assets [Abstract] |  |
Gross amounts recognized | 4 | 204
Gross amounts offset |  | (179)
Net amount subject to master netting | 4 | 25
Net amounts recognized on the Condensed Consolidated Balance Sheet | 4 | 25
Duke Energy Ohio [Member] | Investments And Other Assets, Other [Member] |  |
Offsetting Derivative Assets [Abstract] |  |
Gross amounts recognized |  | 137
Gross amounts offset |  | (114)
Net amount subject to master netting |  | 23
Net amounts recognized on the Condensed Consolidated Balance Sheet |  | 23
Duke Energy Ohio [Member] | Other Current Liabilities [Member] |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 1 | 257
Gross amounts offset |  | (222)
Net amounts subject to master netting | 1 | 35
Net amounts recognized on the Condensed Consolidated Balance Sheet | 1 | 35
Duke Energy Ohio [Member] | Other Noncurrent Liabilities [Member] |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 6 | 216
Gross amounts offset |  | (193)
Net amounts subject to master netting | 6 | 23
Net amounts recognized on the Condensed Consolidated Balance Sheet | 6 | 23
Duke Energy Indiana [Member] |  |
Offsetting Derivative Assets [Abstract] |  |
Gross amounts recognized | 12 | 14
Net amounts recognized on the Condensed Consolidated Balance Sheet | 12 | 14
Duke Energy Indiana [Member] | Current Assets, Other [Member] |  |
Offsetting Derivative Assets [Abstract] |  |
Gross amounts recognized | 12 | 14
Net amount subject to master netting | 12 | 14
Net amounts recognized on the Condensed Consolidated Balance Sheet | $ 12 | $ 14

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