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Earnings Per Share
6 Months Ended
Jun. 30, 2023
Earnings Per Share [Abstract]  
Earnings Per Share Earnings Per Share
Earnings per share is computed using the treasury stock method. Stock options and stock appreciation rights to purchase 9 million and 6 million shares of common stock were outstanding, but were excluded from the calculation of diluted earnings per share for the three and six months ended June 30, 2023, respectively, because their exercise prices were greater than the average market price of the common shares and, therefore, the effect would be antidilutive. For the same reason, stock options and stock appreciation rights to purchase 4 million and 3 million shares of common stock were outstanding, but were excluded from the calculation of diluted earnings per share for the three and six months ended June 30, 2022, respectively.

The following is a reconciliation of basic and diluted earnings per share for the respective periods:
Three Months Ended
June 30,
Six Months Ended
June 30,
In millions, except per share amounts2023202220232022
Numerator for earnings per share calculation:
Net income attributable to CVS Health$1,901 $3,029 $4,037 $5,383 
Denominator for earnings per share calculation:
Weighted average shares, basic1,283 1,313 1,283 1,312 
Restricted stock units and performance stock units
Stock options and stock appreciation rights
Weighted average shares, diluted1,287 1,321 1,289 1,325 
Earnings per share:
Basic$1.48 $2.31 $3.15 $4.10 
Diluted$1.48 $2.29 $3.13 $4.06