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EARNINGS PER SHARE ATTRIBUTABLE TO INTERNATIONAL PAPER COMPANY COMMON SHAREHOLDERS Footnote
 6 Months Ended
Jun. 30, 2016
Earnings Per Share [Abstract]  
Earnings Per Share [Note Text Block]
EARNINGS PER SHARE ATTRIBUTABLE TO INTERNATIONAL PAPER COMPANY COMMON SHAREHOLDERS

Basic earnings per common share are computed by dividing earnings by the weighted average number of common shares outstanding. Diluted earnings per common share are computed assuming that all potentially dilutive securities were converted into common shares. A reconciliation of the amounts included in the computation of earnings (loss) per common share, and diluted earnings (loss) per common share is as follows: 
 
Three Months Ended
June 30,
 
Six Months Ended
June 30,
In millions, except per share amounts
2016
 
2015
 
2016
 
2015
Earnings (loss) from continuing operations
$
40

 
$
227

 
$
379

 
$
540

Effect of dilutive securities (a)
—

 
—

 
—

 
—

Earnings (loss) from continuing operations – assuming dilution
$
40

 
$
227

 
$
379

 
$
540

Average common shares outstanding
411.2

 
420.0

 
411.0

 
420.6

Effect of dilutive securities (a)
 
 
 
 
 
 
 
Restricted stock performance share plan
3.5

 
1.9

 
4.1

 
2.8

Average common shares outstanding – assuming dilution
414.7

 
421.9

 
415.1

 
423.4

Basic earnings (loss) from continuing operations per common share
$
0.10

 
$
0.54

 
$
0.92

 
$
1.28

Diluted earnings (loss) from continuing operations per common share
$
0.10

 
$
0.54

 
$
0.91

 
$
1.28

(a)
Securities are not included in the table in periods when antidilutive.