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Earnings Per Share (Tables) | 3 Months Ended
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Mar. 31, 2018
Earnings Per Share [Abstract] |
Computation Of Basic And Diluted Earnings Per Share | The following table sets forth the computation of basic and diluted earnings per share (“EPS”) (shares in millions):
|  | Three Months Ended March 31,
|  | 2018 |  | 2017
Net loss for basic and diluted EPS | $ | (87 | ) |  | $ | (107 | )
Basic and diluted weighted average shares outstanding (a) | 81.0 |  |  | 85.7 |
Loss per share: |  |  |
| Basic and diluted | $ | (1.08 | ) |  | $ | (1.25 | )
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(a) | For the three months ended March 31, 2018 and 2017, 0.1 million and 0.8 million outstanding options, respectively, and 1.5 million and 2.6 million non-vested stock awards, respectively, have an anti-dilutive effect and therefore are excluded from the computation of diluted weighted average shares outstanding.

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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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