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EARNINGS PER SHARE
 9 Months Ended
Sep. 30, 2023
Earnings Per Share [Abstract]  
EARNINGS PER SHARE EARNINGS PER SHARE
The following table shows the calculation of basic and diluted earnings per share attributable to Gilead:
 Three Months EndedNine Months Ended
September 30,September 30,
(in millions, except per share amounts)2023202220232022
Net income attributable to Gilead$2,180 $1,789 $4,236 $2,952 
Shares used in basic earnings per share attributable to Gilead calculation1,248 1,255 1,249 1,255 
Dilutive effect of stock options and equivalents8 6 10 5 
Shares used in diluted earnings per share attributable to Gilead calculation1,257 1,261 1,259 1,261 
Basic earnings per share attributable to Gilead$1.75 $1.43 $3.39 $2.35 
Diluted earnings per share attributable to Gilead$1.73 $1.42 $3.37 $2.34 
Potential shares of common stock excluded from the computation of diluted earnings per share attributable to Gilead because their effect would have been antidilutive were 6 million and 4 million for the three and nine months ended September 30, 2023, respectively, and 17 million for the three and nine months ended September 30, 2022.