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STOCK OWNERSHIP AND COMPENSATION PLANS (Transactions Under Stock Option Plans) (Details) - Stock Option [Member] - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]      
Options outstanding, beginning of year 8.5    
Options granted 1.6    
Exercise of stock options, shares (1.6)    
Options forfeited and cancelled (0.1)    
Options outstanding, end of year 8.4 8.5  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]      
Options outstanding, beginning of year weighted average exercise price $ 70.11    
Options, granted weighted average exercise price 103.56    
Options exercised weighted average exercise price 63.08    
Options forfeited and cancelled weighted average exercise price 93.51    
Options outstanding, end of year weighted average exercise price $ 77.35 $ 70.11  
Options outstanding, end of year weighted average remaining contractual term 6 years 8 months 12 days    
Options outstanding, end of year aggregate intrinsic value $ 102    
Exercisable, end of year shares 5.1    
Exercisable, end of year weighted average exercise price $ 67.17    
Exercisable, end of year weighted average remaining contractual term 5 years 7 months 6 days    
Exercisable, end of year aggregate intrinsic value $ 90    
Vested and expected to vest, end of year shares 8.3    
Vested and expected to vest, end of year weighted average exercise price $ 76.98    
Vested and expected to vest, end of year weighted average remaining contractual term 6 years 7 months 6 days    
Vested and expected to vest, end of year aggregate intrinsic value $ 102    
Total intrinsic value of options exercised 67 $ 94 $ 30
Compensation not yet recognized, stock options $ 14    
Unrecognized stock-based compensation cost weighted average period 1 year 8 months 12 days