Annual report pursuant to Section 13 and 15(d)

STOCK-BASED COMPENSATION (Changes in Outstanding Options and Weighed-Average Exercise Price Per Share) (Details)

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STOCK-BASED COMPENSATION (Changes in Outstanding Options and Weighed-Average Exercise Price Per Share) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Shares      
Outstanding at the beginning of the year (in shares) 1,866 2,579 3,530
Granted (all at market price) (in shares) 181 189 249
Exercised (in shares) (779) (888) (1,145)
Forfeited and canceled (in shares) (40) (14) (55)
Outstanding at the end of the year (in shares) 1,228 1,866 2,579
Vested and expected to vest at end of year (in shares) 1,177    
Exercisable at end of year (in shares) 856 1,411 1,970
Weighted-Average Exercise Price      
Outstanding at the beginning of the year (in dollars per share) $ 49.54 $ 42.54 $ 37.85
Granted (all at market price) (in dollars per share) 131.41 97.21 73.46
Exercised (in dollars per share) 40.61 38.74 34.81
Forfeited and canceled (in dollars per share) 72.06 58.24 49.12
Outstanding at the end of the year (in dollars per share) 66.81 49.54 42.54
Vested and expected to vest at end of year (in dollars per share) 65.25    
Exercisable at end of year (in dollars per share) $ 48.43 $ 39.90 $ 36.39
Weighted-Average Remaining Contractual Term      
Outstanding at the end of the year 7 years    
Vested and expected to vest at end of year 6 years 10 months 24 days    
Exercisable at end of year 5 years 9 months 18 days    
Aggregate Intrinsic Value      
Outstanding at the end of the year $ 65.6    
Vested and expected to vest at end of year 64.5    
Exercisable at end of year $ 59.8