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Earnings Per Share
9 Months Ended
Sep. 25, 2021
Earnings Per Share [Abstract]  
Earnings Per Share
Note 3 : Earnings Per Share
We computed basic earnings per share of common stock based on the weighted average number of shares of common stock outstanding during the period. We computed diluted earnings per share of common stock based on the weighted average number of shares of common stock outstanding plus potentially dilutive shares of common stock outstanding during the period.
 Three Months EndedNine Months Ended
(In Millions, Except Per Share Amounts)Sep 25, 2021Sep 26, 2020Sep 25, 2021Sep 26, 2020
Net income available to common stockholders$6,823 $4,276 $15,245 $15,042 
Weighted average shares of common stock outstanding—basic4,061 4,188 4,055 4,233 
Dilutive effect of employee equity incentive plans25 23 34 36 
Weighted average shares of common stock outstanding—diluted4,086 4,211 4,089 4,269 
Earnings per share—basic
$1.68 $1.02 $3.76 $3.55 
Earnings per share—diluted
$1.67 $1.02 $3.73 $3.52 
Potentially dilutive shares of common stock from employee equity incentive plans are determined by applying the treasury stock method to the assumed exercise of outstanding stock options, the assumed vesting of outstanding RSUs, and the assumed issuance of common stock under the stock purchase plan.
Securities which would have been anti-dilutive are insignificant and are excluded from the computation of diluted earnings per share in all periods presented.