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Earnings Per Share (Tables) | 9 Months Ended
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Sep. 30, 2014
Text Block [Abstract] |
Schedule Of Basic And Diluted Earnings Per Share |
|  |  | Three Months Ended September 30, |  | Nine Months Ended September 30,
In millions except share and per share amounts |  | 2014 |  | 2013 |  | 2014 |  |  | 2013
Basic earnings per share: |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) |  | $ | 173 |  | $ | 132 |  | $ | 549 |  | $ | 118
Less: undistributed earnings allocated to participating securities |  |  | 5 |  |  | 3 |  |  | 15 |  |  | 3
Net income (loss) available to common shareholders |  |  | 168 |  |  | 129 |  |  | 534 |  |  | 115
Basic weighted average shares (1) |  |  | 187,104,785 |  |  | 188,931,800 |  |  | 188,428,870 |  |  | 189,094,678
Net income (loss) per basic common share: |  | $ | 0.90 |  | $ | 0.68 |  | $ | 2.83 |  | $ | 0.61
Diluted earnings per share: |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) |  |  | 173 |  |  | 132 |  |  | 549 |  |  | 118
Less: undistributed earnings allocated to participating securities |  |  | 5 |  |  | 2 |  |  | 14 |  |  | 2
Less: mark-to-market gain (loss) on warrants |  |  | 18 |  |  | 29 |  |  | 32 |  |  | 6
Net income (loss) available to common shareholders |  |  | 150 |  |  | 101 |  |  | 503 |  |  | 110
Basic weighted average shares (1) |  |  | 187,104,785 |  |  | 188,931,800 |  |  | 188,428,870 |  |  | 189,094,678
Effect of common stock equivalents: |  |  |  |  |  |  |  |  |  |  |  |
| Stock options |  |  | 1,029,777 |  |  | 1,282,576 |  |  | 1,126,134 |  |  | 1,230,599
| Warrants |  |  | 289,756 |  |  | 2,366,688 |  |  | 2,061,719 |  |  | 2,705,912
Diluted weighted average shares |  |  | 188,424,318 |  |  | 192,581,064 |  |  | 191,616,723 |  |  | 193,031,189
Net income (loss) per diluted common share: |  | $ | 0.80 |  | $ | 0.52 |  | $ | 2.62 |  | $ | 0.57
_________ |  |  |  |  |  |  |  |  |  |  |  |  |
(1) - Includes 270,142 and 569,673 of participating securities that met the service condition and were eligible to receive nonforfeitable dividends or dividend equivalents for the three months ended September 30, 2014 and 2013, respectively. Includes 315,018 and 636,570 of participating securities that met the service condition and were eligible to receive nonforfeitable dividends or dividend equivalents for the nine months ended September 30, 2014 and 2013, respectively.

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- Definition Schedule of Basic and Diluted Earnings Per Share [Table Text Block] + References No definition available. + Details
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