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EARNINGS AND DIVIDENDS PER SHARE
 6 Months Ended
Jun. 30, 2024
Earnings Per Share [Abstract]  
Earnings Per Share EARNINGS AND DIVIDENDS PER SHARE
The following table sets forth the computation of basic and diluted earnings per share ("EPS") which are calculated using the treasury stock method:
 Second QuarterFirst Six Months
(In millions, except per share amounts)2024202320242023
Numerator
Earnings attributable to Eastman, net of tax $230 $272 $395 $406 
Denominator
Weighted average shares used for basic EPS117.3118.8117.4118.9
Dilutive effect of stock options and other awards1.30.81.10.7
Weighted average shares used for diluted EPS118.6119.6118.5119.6
(Calculated using whole dollars and shares)
EPS
Basic$1.96 $2.28 $3.37 $3.41 
Diluted$1.94 $2.27 $3.33 $3.39 

Shares underlying stock options of 1,336,652 and 2,411,015 for second quarter 2024 and 2023, respectively, and 1,397,081 and 1,941,051 for first six months 2024 and 2023, respectively, were excluded from the calculations of diluted EPS because the grant date exercise price of these options was greater than the average market price of the Company's common stock and the effect of including them in the calculations of diluted EPS would have been antidilutive. The Company repurchased 1,000,005 shares in both second quarter and first six months 2024. The Company repurchased 621,711 shares in both second quarter and first six months 2023.

The Company declared cash dividends of $0.81 and $0.79 per share for second quarter 2024 and 2023, respectively. The Company declared cash dividends of $1.62 and $1.58 per share for first six months 2024 and 2023, respectively.