STOCK-BASED EMPLOYEE COMPENSATION (Stock Options) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Vested and exercisable as of June 30, 2016 and expected to vest thereafter, net of estimated forfeitures
Allocated Share-based Compensation Expense	$ 54,976	$ 60,164	$ 120,976	$ 114,172
Employee Stock Option [Member]
Number of Shares
Beginning balance (in shares)			89,104
Exercised (in shares)			(25,962)
Forfeited (in shares)			(1,410)
Ending balance (in shares)	61,732.000		61,732.000		89,104
Weighted-Average Exercise Price
Beginning balance (in dollars per share)			$ 383.03
Exercised (in dollars per share)			374.66
Forfeited (in dollars per share)			253.97
Ending balance (in dollars per share)	$ 389.49		$ 389.49		$ 383.03
Aggregate Intrinsic Value	$ 53,023		$ 53,023		$ 79,474
Weighted Average Remaining Contractual Term			5 years 1 month		5 years 5 months
Vested and exercisable as of June 30, 2016
Number of Shares	56,002		56,002
Weighted Average Exercise Price (in dollars per share)	$ 364.94		$ 364.94
Aggregate Intrinsic Value	$ 49,476		$ 49,476
Weighted Average Remaining Contractual Term, Exercisable			4 years 11 months
Vested and exercisable as of June 30, 2016 and expected to vest thereafter, net of estimated forfeitures
Number of Shares	61,542		61,542
Weighted Average Exercise Price (in dollars per share)	$ 389.69		$ 389.69
Aggregate Intrinsic Value	$ 52,847		$ 52,847
Weighted Average Remaining Contractual Term			5 years 1 month
Stock options exercised, total intrinsic value			$ 23,100	$ 26,400
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares			9,387	22,352
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value			$ 5,900	$ 15,100
Allocated Share-based Compensation Expense	2,400	$ 7,600	5,300	$ 15,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options	$ 3,300		$ 3,300
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition			1 year 1 month