STOCK BASED COMPENSATION - Stock Option Activity (Detail) (USD $)	6 Months Ended
	Jun. 30, 2013
Number of Options
Outstanding at beginning of period	5,543,664
Granted	1,045,130
Canceled or expired	(511,812)
Outstanding at June 30, 2013	(93,604)
Outstanding at end of period	5,983,378.000
Exercisable at end of period	3,098,266
Vested and expected to vest in the future at end of period	5,091,160
Weighted Average Exercise Price per Share
Outstanding at beginning of period	$ 61.69
Granted	$ 96.85
Exercised	$ 48.27
Canceled or expired	$ 73.57
Outstanding at June 30, 2013	$ 68.79
Exercisable at end of period	$ 55.87
Vested and expected to vest in the future at end of period	$ 65.67
Weighted Average Remaining Contractual Life (in years)
Outstanding at end of period	6 years 11 months 9 days
Exercisable at end of period	5 years 7 months 17 days
Vested and expected to vest in the future at end of period	6 years 7 months 17 days
Aggregate Intrinsic Value
Outstanding at end of period	$ 249,210,004
Exercisable at end of period	169,028,417
Vested and expected to vest in the future at end of period	$ 227,958,814