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EARNINGS PER SHARE ATTRIBUTABLE TO INTERNATIONAL PAPER COMPANY COMMON SHAREHOLDERS (Tables)
 3 Months Ended
Mar. 31, 2017
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
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
March 31,
In millions, except per share amounts
2017
 
2016
Earnings (loss) from continuing operations
$
209

 
$
339

Effect of dilutive securities
—

 
—

Earnings (loss) from continuing operations – assuming dilution
$
209

 
$
339

Average common shares outstanding
412.1

 
410.8

Effect of dilutive securities
 
 
 
Restricted stock performance share plan
3.9

 
3.2

Average common shares outstanding – assuming dilution
416.0

 
414.0

Basic earnings (loss) from continuing operations per common share
$
0.51

 
$
0.82

Diluted earnings (loss) from continuing operations per common share
$
0.50

 
$
0.82