STOCK-BASED EMPLOYEE COMPENSATION (Stock Options) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Vested and exercisable as of June 30, 2017 and expected to vest thereafter
Stock-based compensation expense	$ 66,879	$ 54,976	$ 125,827	$ 120,976
Employee Stock Option [Member]
Number of Shares
Beginning balance (in shares)			48,983
Exercised (in shares)			(10,921)
Forfeited (in shares)			(760)
Ending balance (in shares)	37,302.000		37,302.000		48,983
Weighted-Average Exercise Price
Beginning balance (in dollars per share)			$ 372.07
Exercised (in dollars per share)			255.09
Forfeited (in dollars per share)			866.47
Ending balance (in dollars per share)	$ 396.25		$ 396.25		$ 372.07
Aggregate Intrinsic Value	$ 54,993		$ 54,993		$ 53,587
Weighted Average Remaining Contractual Term			4 years 4 months		4 years 5 months
Vested and exercisable as of June 30, 2017
Number of Shares	36,611		36,611
Weighted Average Exercise Price (in dollars per share)	$ 389.26		$ 389.26
Aggregate Intrinsic Value	$ 54,230		$ 54,230
Weighted Average Remaining Contractual Term, Exercisable			4 years 3 months
Vested and exercisable as of June 30, 2017 and expected to vest thereafter
Number of Shares	37,302		37,302
Weighted Average Exercise Price (in dollars per share)	$ 396.25		$ 396.25
Aggregate Intrinsic Value	$ 54,993		$ 54,993
Weighted Average Remaining Contractual Term			4 years 4 months
Stock options exercised, total intrinsic value			$ 16,800	$ 23,100
Options, vested, number of shares (in shares)			954	9,387
Options, vested in period, fair value			$ 600	$ 5,900
Stock-based compensation expense	300	$ 500	2,400	$ 5,300
Compensation not yet recognized, stock options	$ 300		$ 300
Total future compensation cost related to unvested share-based awards, expected period of recognition			7 months