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EARNINGS PER SHARE ATTRIBUTABLE TO INTERNATIONAL PAPER COMPANY COMMON SHAREHOLDERS (Note)
3 Months Ended
Mar. 31, 2023
Earnings Per Share [Abstract]  
Earnings Per Share [Note Text Block]
Basic earnings per share is computed by dividing earnings by the weighted average number of common shares outstanding. Diluted earnings per share is computed assuming that all potentially dilutive securities were converted into common shares. There are no adjustments required to be made to net income for purposes of computing basic and diluted earnings per share. A reconciliation of the amounts included in the computation of basic earnings (loss) per share and diluted earnings (loss) per share is as follows:
 
 Three Months Ended
March 31,
In millions, except per share amounts20232022
Earnings (loss) from continuing operations $172 $267 
Weighted average common shares outstanding349.3 375.2 
Effect of dilutive securities
Restricted performance share plan4.0 4.0 
Weighted average common shares outstanding – assuming dilution353.3 379.2 
Basic earnings (loss) per share from continuing operations$0.49 $0.71 
Diluted earnings (loss) per share from continuing operations$0.49 $0.70