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EARNINGS AND DIVIDENDS PER SHARE | 9 Months Ended
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Sep. 30, 2018
Earnings Per Share [Abstract] |
EARNINGS AND DIVIDENDS PER SHARE | EARNINGS AND DIVIDENDS PER SHARE The following table sets forth the computation of basic and diluted earnings per share ("EPS"):
| Third Quarter |  | First Nine Months
(In millions, except per share amounts) | 2018 |  | 2017 |  | 2018 |  | 2017
Numerator |  |  |  |  |  |  |
Earnings attributable to Eastman, net of tax | $ | 412 |  |  | $ | 323 |  |  | $ | 1,046 |  |  | $ | 893 |
Denominator |  |  |  |  |  |  |
Weighted average shares used for basic EPS | 140.6 |  |  | 144.3 |  |  | 141.7 |  |  | 145.2 |
Dilutive effect of stock options and other awards | 1.8 |  |  | 1.2 |  |  | 2.0 |  |  | 1.3 |
Weighted average shares used for diluted EPS | 142.4 |  |  | 145.5 |  |  | 143.7 |  |  | 146.5 |
(Calculated using whole dollars and shares) |  |  |  |  |  |  |
EPS |  |  |  |  |  |  |
Basic | $ | 2.93 |  |  | $ | 2.24 |  |  | $ | 7.38 |  |  | $ | 6.15 |
Diluted | $ | 2.89 |  |  | $ | 2.22 |  |  | $ | 7.28 |  |  | $ | 6.10 |
In both third quarter and first nine months 2018, options to purchase 619,706 shares of common stock were excluded from the shares treated as outstanding for computation of diluted EPS because the market value of option exercises for these awards were less than the cash proceeds that would be received from these exercises. Third quarter and first nine months 2018 reflect the impact of share repurchases of 1,263,868 and 3,673,642, respectively. In third quarter and first nine months 2017, options to purchase 727,111 and 781,011 shares of common stock, respectively, were excluded from the shares treated as outstanding for computation of diluted EPS because the market value of option exercises for these awards were less than the cash proceeds that would be received from these exercises. Third quarter and first nine months 2017 reflect the impact of share repurchases of 1,184,107 and 3,360,783, respectively. The Company declared cash dividends of $0.56 and $0.51 per share in third quarter 2018 and 2017, respectively, and $1.68 and $1.53 per share in first nine months 2018 and 2017, respectively.

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