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Earnings Per Share (Tables) | 9 Months Ended
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Sep. 30, 2015
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 |  | 2015 |  | 2014 |  | 2015 |  |  | 2014
Basic earnings per share: |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) |  | $ | (35) |  | $ | 173 |  | $ | 98 |  | $ | 549
Less: undistributed earnings allocated to participating securities |  |  | - |  |  | 5 |  |  | 3 |  |  | 15
Net income (loss) available to common shareholders |  |  | (35) |  |  | 168 |  |  | 95 |  |  | 534
Basic weighted average shares (1) |  |  | 155,239,723 |  |  | 187,104,785 |  |  | 169,610,370 |  |  | 188,428,870
Net income (loss) per basic common share: |  | $ | (0.23) |  | $ | 0.90 |  | $ | 0.56 |  | $ | 2.83
Diluted earnings per share: |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) |  |  | (35) |  |  | 173 |  |  | 98 |  |  | 549
Less: undistributed earnings allocated to participating securities |  |  | - |  |  | 5 |  |  | 3 |  |  | 14
Less: mark-to-market gain (loss) on warrants |  |  | - |  |  | 18 |  |  | - |  |  | 32
Net income (loss) available to common shareholders |  |  | (35) |  |  | 150 |  |  | 95 |  |  | 503
Basic weighted average shares (1) |  |  | 155,239,723 |  |  | 187,104,785 |  |  | 169,610,370 |  |  | 188,428,870
Effect of common stock equivalents: |  |  |  |  |  |  |  |  |  |  |  |
| Stock options |  |  | - |  |  | 1,029,777 |  |  | 956,016 |  |  | 1,126,134
| Warrants |  |  | - |  |  | 289,756 |  |  | - |  |  | 2,061,719
Diluted weighted average shares |  |  | 155,239,723 |  |  | 188,424,318 |  |  | 170,566,386 |  |  | 191,616,723
Net income (loss) per diluted common share: |  | $ | (0.23) |  | $ | 0.80 |  | $ | 0.55 |  | $ | 2.62
_________ |  |  |  |  |  |  |  |  |  |  |  |
(1) - Includes 600,826 and 270,142 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, 2015 and 2014, respectively. Includes 619,889 and 315,018 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, 2015 and 2014, respectively.

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