STOCK COMPENSATION PLANS - STOCK OPTION ACTIVITY (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding shares at beginning of year (shares)	6,842,563
Granted (shares)	1,356,440
Exercised (shares)	(1,762,827)
Forfeited (shares)	(244,168)
Outstanding as of December 31, 2015 (shares)	6,192,008	6,842,563
Options exercisable as of December 31, 2015 (shares)	3,498,601
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Outstanding (USD per share)	$ 75.48
Granted (USD per share)	90.73
Exercises (USD per share)	58.72
Forfeited (USD per share)	98.72
Outstanding (USD per share)	82.67	$ 75.48
Options exercisable (USD per share)	$ 72.15
Options outstanding, weighted-average remaining contractual term	6 years 2 months	5 years 9 months
Options exercisable, weighted aver remaining contractual term	4 years 7 months
Aggregate intrinsic value of options outstanding	$ 121,202
Aggregate intrinsic value of options exercisable	$ 103,865