v3.20.4
Earnings Per Share (Tables)
 12 Months Ended
Dec. 31, 2020
Earnings Per Share [Abstract]  
Schedule of basic and diluted earnings per share, impact of two-class method
The following table summarizes the impact of the two-class method:
Years ended December 31,
(in millions, except per share data)202020192018
Basic EPS
Net earnings attributable to AbbVie Inc.$4,616 $7,882 $5,687 
Earnings allocated to participating securities60 40 30 
Earnings available to common shareholders$4,556 $7,842 $5,657 
Weighted average basic shares of common stock outstanding1,667 1,481 1,541 
Basic earnings per share attributable to AbbVie Inc.$2.73 $5.30 $3.67 
Diluted EPS
Net earnings attributable to AbbVie Inc.$4,616 $7,882 $5,687 
Earnings allocated to participating securities60 40 30 
Earnings available to common shareholders$4,556 $7,842 $5,657 
Weighted average shares of common stock outstanding1,667 1,481 1,541 
Effect of dilutive securities6 3 5 
Weighted average diluted shares of common stock outstanding1,673 1,484 1,546 
Diluted earnings per share attributable to AbbVie Inc.$2.72 $5.28 $3.66