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Income Taxes (Tables) | 3 Months Ended
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Mar. 31, 2015
Text Block [Abstract] |
Income (loss) from operations before provision (benefit) for income taxes |
|  |  | Three Months Ended March 31, |
In millions |  |  | 2015 |  |  |  | 2014 |
Income (loss) before income taxes |  | $ | 113 |  |  | $ | 404 |
Provision (benefit) for income taxes |  | $ | 44 |  |  | $ | 148 |
Effective tax rate |  |  | 38.9% |  |  |  | 36.6% |

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- Definition Tabular disclosure of income before income tax between domestic and foreign jurisdictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(1)(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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