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EARNINGS PER SHARE (Tables)
12 Months Ended
Dec. 31, 2020
Earnings Per Share [Abstract]  
Computation of Basic and Diluted Earnings Per Share The following table sets forth the computation of basic and diluted earnings per share (in millions, except per share amounts): 
202020192018
Numerator:
Net income attributable to common shareowners$1,343 $4,440 $4,791 
Denominator:
Weighted-average shares862 859 860 
Deferred compensation obligations— — 
Vested portion of restricted shares
Denominator for basic earnings per share867 864 866 
Effect of Dilutive Securities:
Restricted performance units
Denominator for diluted earnings per share871 869 870 
Basic Earnings Per Share$1.55 $5.14 $5.53 
Diluted Earnings Per Share$1.54 $5.11 $5.51