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EMPLOYEE STOCK BENEFIT PLANS (Stock Based Compensation Activity) (Details) - $ / shares
shares in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Stock Options [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]      
Stock options, Outstanding balance at January 1, 2017 6,403    
Stock options, Released/Exercised (2,525)    
Stock options, Forfeited/Canceled (94)    
Stock options, Outstanding balance at December 31, 2017 3,800 6,403  
Stock options, Outstanding balance at January 1, 2017, Weighted average exercise price $ 21.02    
Stock Options, Exercised, Weighted average exercise price 23.80    
Stock options, Forfeited, Weighted average exercise price 25.55    
Stock options, Outstanding balance at December 31, 2017, Weighted average exercise price $ 19.04 $ 21.02  
Vested or Expected to Vest, Number of Options Outstanding 3,785    
Vested or Expected to Vest - Stock Options, Weighted-Average Exercise Price of Shares $ 19.04    
Restricted Stock Units (RSUs) [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]      
Nonvested awards, Balance at January 1, 2017 4,591    
Nonvested awards, Granted 2,683    
Nonvested awards, Released/Exercised (1,722)    
Nonvested awards, Forfeited/Canceled (696)    
Nonvested awards, Balance at December 31, 2017 4,900 4,591  
Nonvested awards, Balance at January 1, 2017, Weighted average grant date fair value $ 56.90    
Nonvested awards, Granted, Weighted average grant date fair value 54.39 $ 60.56 $ 61.18
Nonvested awards, Released, Weighted average grant date fair value 53.00    
Nonvested awards, Canceled, Weighted average grant date fair value 57.26    
Nonvested awards, Balance at December 31, 2017, Weighted average grant date fair value $ 56.85 $ 56.90  
Expected to Vest, Awards Other than Options, Number of Nonvested Awards 4,299    
Expected to Vest, Awards Other than Options, Weighted-Average Grant Date Fair Value $ 56.89    
Market share units [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]      
Nonvested awards, Balance at January 1, 2017 1,527    
Nonvested awards, Granted 856    
Nonvested awards, Released/Exercised (613)    
Nonvested awards, Forfeited/Canceled (262)    
Nonvested awards, Balance at December 31, 2017 1,500 1,527  
Nonvested awards, Balance at January 1, 2017, Weighted average grant date fair value $ 61.63    
Nonvested awards, Granted, Weighted average grant date fair value 60.14 $ 65.26 67.03
Nonvested awards, Released, Weighted average grant date fair value 54.64    
Nonvested awards, Canceled, Weighted average grant date fair value 62.95    
Nonvested awards, Balance at December 31, 2017, Weighted average grant date fair value $ 62.25 $ 61.63  
Expected to Vest, Awards Other than Options, Number of Nonvested Awards 1,392    
Expected to Vest, Awards Other than Options, Weighted-Average Grant Date Fair Value $ 62.27    
Long-term performance awards [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]      
Nonvested awards, Balance at January 1, 2017 4,115    
Nonvested awards, Granted 1,283    
Nonvested awards, Released/Exercised (1,536)    
Nonvested awards, Forfeited/Canceled (382)    
Nonvested awards, Balance at December 31, 2017 3,500 4,115  
Nonvested awards, Balance at January 1, 2017, Weighted average grant date fair value $ 60.97    
Nonvested awards, Granted, Weighted average grant date fair value 57.91 $ 64.87 $ 65.07
Nonvested awards, Released, Weighted average grant date fair value 54.46    
Nonvested awards, Canceled, Weighted average grant date fair value 62.21    
Nonvested awards, Balance at December 31, 2017, Weighted average grant date fair value $ 62.57 $ 60.97  
Expected to Vest, Awards Other than Options, Number of Nonvested Awards 3,332    
Expected to Vest, Awards Other than Options, Weighted-Average Grant Date Fair Value $ 62.82