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SHAREHOLDER'S EQUITY (Tables)
12 Months Ended
Dec. 31, 2019
Equity [Abstract]  
Schedule of Treasury Stock by Class [Table Text Block]
Share repurchase activity (in millions, except shares):
201920182017
 SharesAmountSharesAmountSharesAmount
2015 Repurchase Program – $1 billion  1,192,820  $75  776,186  $50  981,277  $75  
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
AOCL consisted of the following (in millions, net of tax):  
 20192018
Related to marketable securities$ $(11) 
Related to employee benefit plans(469) (440) 
Related to interest rate derivatives(5)  
 $(465) $(448)