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Earnings per Share
 6 Months Ended
Jun. 30, 2020
Earnings Per Share [Abstract]  
Earnings per Share EARNINGS PER SHARE

Basic earnings per share is based upon the weighted-average number of shares of common stock outstanding. Diluted earnings per share is based upon the weighted-average number of shares of common stock outstanding, plus all potentially dilutive securities that were assumed to be converted into common shares at the beginning of the period under the treasury stock method. This method requires that the effect of potentially dilutive common stock equivalents (stock options, stock-settled appreciation rights (SSARs), restricted stock units, and performance stock units) be excluded from the calculation of diluted earnings per share for the periods in which losses are reported because the effect is anti-dilutive.

The following table sets forth the computation of basic and diluted earnings per share (in millions, except per share amounts):
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
2020
 
2019
 
2020
 
2019
Net income attributed to LP
 
 
 
 
 
 
 
Weighted average common shares outstanding - basic
112

 
123

 
112

 
127

Dilutive effect of employee stock plans
1

 
1

 
1

 
1

Shares used for diluted earnings per share
113

 
124

 
113

 
128

Earnings per share:
 
 
 
 
 
 
 
Basic earnings
$
0.29

 
$
0.14

 
$
0.59

 
$
0.34

Diluted earnings
$
0.29

 
$
0.14

 
$
0.58

 
$
0.34