v2.4.0.8

Derivatives and Hedging (Schedule of Offsetting Assets and Liabilities: Derivatives and Collateral Posted) (Details) (USD $) In Millions, unless otherwise specified | Sep. 30, 2014 | Dec. 31, 2013
--- | --- | ---
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | $ 913 | $ 636
Net amounts recognized on the Condensed Consolidated Balance Sheet | 428 | 321
Offsetting Derivative Assets [Abstract] |  |
Gross amounts recognized | 570 | 461
Net amounts recognized on the Condensed Consolidated Balance Sheet | 85 | 145
Current Assets, Other [Member] |  |
Offsetting Derivative Assets [Abstract] |  |
Gross amounts recognized | 388 | 214
Gross amounts offset | (362) | (179)
Net amount subject to master netting | 26 | 35
Amounts not subject to master netting |  |
Net amounts recognized on the Condensed Consolidated Balance Sheet | 26 | 35
Investments And Other Assets, Other [Member] |  |
Offsetting Derivative Assets [Abstract] |  |
Gross amounts recognized | 175 | 233
Gross amounts offset | (127) | (138)
Net amount subject to master netting | 48 | 95
Amounts not subject to master netting | 7 | 14
Net amounts recognized on the Condensed Consolidated Balance Sheet | 55 | 109
Other Current Liabilities [Member] |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 583 | 322
Gross amounts offset | (402) | (192)
Net amounts subject to master netting | 181 | 130
Amounts not subject to master netting | 3 | 4
Net amounts recognized on the Condensed Consolidated Balance Sheet | 184 | 134
Other Noncurrent Liabilities [Member] |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 314 | 299
Gross amounts offset | (203) | (155)
Net amounts subject to master netting | 111 | 144
Amounts not subject to master netting | 13 | 11
Net amounts recognized on the Condensed Consolidated Balance Sheet | 124 | 155
Progress Energy [Member] |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 144 | 204
Net amounts recognized on the Condensed Consolidated Balance Sheet | 142 | 187
Offsetting Derivative Assets [Abstract] |  |
Gross amounts recognized | 2 | 20
Net amounts recognized on the Condensed Consolidated Balance Sheet |  | 3
Progress Energy [Member] | Current Assets, Other [Member] |  |
Offsetting Derivative Assets [Abstract] |  |
Gross amounts recognized | 1 | 15
Gross amounts offset | (1) | (13)
Net amounts recognized on the Condensed Consolidated Balance Sheet |  | 2
Progress Energy [Member] | Investments And Other Assets, Other [Member] |  |
Offsetting Derivative Assets [Abstract] |  |
Gross amounts recognized | 1 | 5
Gross amounts offset | (1) | (4)
Net amounts recognized on the Condensed Consolidated Balance Sheet |  | 1
Progress Energy [Member] | Other Current Liabilities [Member] |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 115 | 107
Gross amounts offset | (1) | (17)
Net amounts subject to master netting | 114 | 90
Amounts not subject to master netting |  |
Net amounts recognized on the Condensed Consolidated Balance Sheet | 114 | 90
Progress Energy [Member] | Other Noncurrent Liabilities [Member] |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 29 | 93
Gross amounts offset | (1) | (10)
Net amounts subject to master netting | 28 | 83
Amounts not subject to master netting |  | 4
Net amounts recognized on the Condensed Consolidated Balance Sheet | 28 | 87
Duke Energy Progress [Member] |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 48 | 71
Net amounts recognized on the Condensed Consolidated Balance Sheet | 45 | 66
Offsetting Derivative Assets [Abstract] |  |
Gross amounts recognized | 3 | 6
Net amounts recognized on the Condensed Consolidated Balance Sheet |  | 1
Duke Energy Progress [Member] | Current Assets, Other [Member] |  |
Offsetting Derivative Assets [Abstract] |  |
Gross amounts recognized | 2 | 3
Gross amounts offset | (2) | (3)
Net amounts recognized on the Condensed Consolidated Balance Sheet |  |
Duke Energy Progress [Member] | Investments And Other Assets, Other [Member] |  |
Offsetting Derivative Assets [Abstract] |  |
Gross amounts recognized | 1 | 3
Gross amounts offset | (1) | (3)
Net amounts recognized on the Condensed Consolidated Balance Sheet |  |
Duke Energy Progress [Member] | Other Current Liabilities [Member] |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 40 | 41
Gross amounts offset | (2) | (3)
Net amounts recognized on the Condensed Consolidated Balance Sheet | 38 | 38
Duke Energy Progress [Member] | Other Noncurrent Liabilities [Member] |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 8 | 30
Gross amounts offset | (1) | (3)
Net amounts recognized on the Condensed Consolidated Balance Sheet | 7 | 27
Duke Energy Florida [Member] |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 96 | 129
Net amounts recognized on the Condensed Consolidated Balance Sheet | 97 | 116
Offsetting Derivative Assets [Abstract] |  |
Gross amounts recognized | 2 | 14
Net amounts recognized on the Condensed Consolidated Balance Sheet | 3 | 1
Duke Energy Florida [Member] | Current Assets, Other [Member] |  |
Offsetting Derivative Assets [Abstract] |  |
Gross amounts recognized | 1 | 12
Gross amounts offset | (1) | (10)
Net amounts recognized on the Condensed Consolidated Balance Sheet |  | 2
Duke Energy Florida [Member] | Investments And Other Assets, Other [Member] |  |
Offsetting Derivative Assets [Abstract] |  |
Gross amounts recognized | 1 | 2
Gross amounts offset | (1) | (2)
Net amounts recognized on the Condensed Consolidated Balance Sheet |  |
Duke Energy Florida [Member] | Other Current Liabilities [Member] |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 75 | 66
Gross amounts offset | (1) | (15)
Net amounts recognized on the Condensed Consolidated Balance Sheet | 74 | 51
Duke Energy Florida [Member] | Other Noncurrent Liabilities [Member] |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 21 | 63
Gross amounts offset | (1) | (7)
Net amounts recognized on the Condensed Consolidated Balance Sheet | 20 | 56
Duke Energy Ohio [Member] |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 778 | 390
Net amounts recognized on the Condensed Consolidated Balance Sheet | 221 | 95
Offsetting Derivative Assets [Abstract] |  |
Gross amounts recognized | 564 | 391
Net amounts recognized on the Condensed Consolidated Balance Sheet | 7 | 96
Duke Energy Ohio [Member] | Current Assets, Other [Member] |  |
Offsetting Derivative Assets [Abstract] |  |
Gross amounts recognized | 381 | 186
Gross amounts offset | (377) | (165)
Net amounts recognized on the Condensed Consolidated Balance Sheet | 4 | 21
Duke Energy Ohio [Member] | Investments And Other Assets, Other [Member] |  |
Offsetting Derivative Assets [Abstract] |  |
Gross amounts recognized | 183 | 205
Gross amounts offset | (177) | (132)
Net amounts recognized on the Condensed Consolidated Balance Sheet | 6 | 73
Duke Energy Ohio [Member] | Other Current Liabilities [Member] |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 485 | 199
Gross amounts offset | (419) | (173)
Net amounts subject to master netting | 66 | 26
Amounts not subject to master netting |  | 1
Net amounts recognized on the Condensed Consolidated Balance Sheet | 66 | 27
Duke Energy Ohio [Member] | Other Noncurrent Liabilities [Member] |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 293 | 186
Gross amounts offset | (251) | (143)
Net amounts subject to master netting | 42 | 43
Amounts not subject to master netting |  | 4
Net amounts recognized on the Condensed Consolidated Balance Sheet | $ 42 | $ 47

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