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Earnings Per Common Share (Tables) | 6 Months Ended
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Jun. 30, 2013
Earnings Per Share [Abstract] |
Numerators and Denominators Used in 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:
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2013 |  |  | 2012 |  |  | 2013 |  |  | 2012 |
Numerator (basic and diluted): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income (loss) from continuing operations |  | $ | 82 |  |  | $ | (51 | ) |  | $ | 138 |  |  | $ | (9 | )
Allocation to unvested restricted stock awards |  |  | (2 | ) |  |  | (1 | ) |  |  | (3 | ) |  |  | (1 | )
Income (loss) from continuing operations attributable to common shareholders |  |  | 80 |  |  |  | (52 | ) |  |  | 135 |  |  |  | (10 | )
Loss from discontinued Operations, net |  |  | (5 | ) |  |  | (24 | ) |  |  | (14 | ) |  |  | (33 | )
Net income (loss) available to common shareholders |  | $ | 75 |  |  | $ | (76 | ) |  | $ | 121 |  |  | $ | (43 | )
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic common shares (based upon weighted average) |  |  | 349 |  |  |  | 349 |  |  |  | 349 |  |  |  | 349 |
Add: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingent common shares |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Stock option dilution |  |  | 3 |  |  |  | — |  |  |  | 3 |  |  |  | — |
Diluted common shares |  |  | 352 |  |  |  | 349 |  |  |  | 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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