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Other Non-Operating Expense (Tables) | 6 Months Ended
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Jun. 30, 2014
Other Income and Expenses [Abstract] |
Schedule of Other Nonoperating Expense |
|  | Three Months Ended June 30, |  | Six Months Ended June 30,
|  | 2014 |  | 2013 |  | 2014 |  | 2013
|  | (in millions)
Silver Ridge Power |  | $ | 44 |  |  | $ | — |  |  | $ | 44 |  |  | $ | — |
Total other non-operating expense |  | $ | 44 |  |  | $ | — |  |  | $ | 44 |  |  | $ | — |

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- Definition Tabular disclosure of the components of non-operating income or non-operating expense that may include amounts earned from dividends, interest on securities, gains (losses) on securities sold, equity earnings of unconsolidated affiliates, net gain (loss) on sales of business, interest expense and other miscellaneous income or expense items. + References No definition available. + Details
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