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Earnings Per Share
3 Months Ended
Mar. 27, 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 Ended
(In Millions, Except Per Share Amounts)Mar 27, 2021Mar 28, 2020
Net income available to common stockholders$3,361 $5,661 
Weighted average shares of common stock outstanding—basic4,056 4,266 
Dilutive effect of employee equity incentive plans40 46 
Weighted average shares of common stock outstanding—diluted4,096 4,312 
Earnings per share—basic
$0.83 $1.33 
Earnings per share—diluted
$0.82 $1.31 
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.