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EARNINGS PER COMMON SHARE (Tables) | 12 Months Ended
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Dec. 31, 2014
EARNINGS PER COMMON SHARE |
Schedule of reconciliations of the numerators and denominators used in the computations of basic and diluted earnings per common share | Reconciliations of the numerators and denominators used in the computations of basic and diluted earnings per common share were as follows, in millions:
|  | 2014 |  | 2013 |  | 2012 |
Numerator (basic and diluted): |  |  |  |  |  |  |  |  |  |
Income (loss) from continuing operations |  | $ | 861 |  | $ | 298 |  | $ | (53 | )
Less: Allocation to unvested restricted stock awards |  |  | 17 |  |  | 7 |  |  | 2 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Income (loss) from continuing operations attributable to common shareholders |  |  | 844 |  |  | 291 |  |  | (55 | )
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Loss from discontinued operations, net |  |  | (5 | ) |  | (10 | ) |  | (61 | )
Less: Allocation to unvested restricted stock awards |  |  | — |  |  | — |  |  | — |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Loss from discontinued operations attributable to common shareholders |  |  | (5 | ) |  | (10 | ) |  | (61 | )
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net income (loss) available to common shareholders |  | $ | 839 |  | $ | 281 |  | $ | (116 | )
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Denominator: |  |  |  |  |  |  |  |  |  |
Basic common shares (based upon weighted average) |  |  | 349 |  |  | 350 |  |  | 349 |
Add: |  |  |  |  |  |  |  |  |  |
Stock option dilution |  |  | 3 |  |  | 2 |  |  | — |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Diluted common shares |  |  | 352 |  |  | 352 |  |  | 349 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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