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EARNINGS AND DIVIDENDS PER SHARE (Tables) | 6 Months Ended
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Jun. 30, 2018
Earnings Per Share [Abstract] |
Earnings per share, basic and diluted | The following table sets forth the computation of basic and diluted earnings per share ("EPS"):
| Second Quarter |  | First Six Months
(In millions, except per share amounts) | 2018 |  | 2017 |  | 2018 |  | 2017
Numerator |  |  |  |  |  |  |
Earnings attributable to Eastman, net of tax | $ | 344 |  |  | $ | 292 |  |  | $ | 634 |  |  | $ | 570 |
Denominator |  |  |  |  |  |  |
Weighted average shares used for basic EPS | 141.9 |  |  | 145.3 |  |  | 142.3 |  |  | 145.7 |
Dilutive effect of stock options and other awards | 2.1 |  |  | 1.1 |  |  | 2.1 |  |  | 1.1 |
Weighted average shares used for diluted EPS | 144.0 |  |  | 146.4 |  |  | 144.4 |  |  | 146.8 |
(Calculated using whole dollars and shares) |  |  |  |  |  |  |
EPS |  |  |  |  |  |  |
Basic | $ | 2.42 |  |  | $ | 2.01 |  |  | $ | 4.45 |  |  | $ | 3.91 |
Diluted | $ | 2.39 |  |  | $ | 2.00 |  |  | $ | 4.39 |  |  | $ | 3.89 |

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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://fasb.org/us-gaap/role/ref/legacyRef -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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