EMPLOYEE BENEFIT PLANS (Details 3) (USD $)	3 Months Ended
	Mar. 31, 2013
Options Outstanding
Number of Options (in shares)	3,835,818
Weighted Average Remaining Contractual life	3 years 10 months 24 days
Weighted Average Exercise Price (in dollars per share)	$ 31.53
Options Exercisable
Number of Options (in shares)	3,247,003
Weighted Average Exercise Price (in dollars per share)	$ 31.60
Range of Exercise Prices, $0.00 to $4.569
Summary information about outstanding stock options
Exercise price per share, low end of the range (in dollars per share)	$ 0.00
Exercise price per share, high end of the range (in dollars per share)	$ 4.569
Options Outstanding
Number of Options (in shares)	463,467
Weighted Average Remaining Contractual life	5 years 10 months 24 days
Weighted Average Exercise Price (in dollars per share)	$ 4.56
Options Exercisable
Number of Options (in shares)	463,467
Weighted Average Exercise Price (in dollars per share)	$ 4.56
Range of Exercise Prices, $4.57 to $25.089
Summary information about outstanding stock options
Exercise price per share, low end of the range (in dollars per share)	$ 4.57
Exercise price per share, high end of the range (in dollars per share)	$ 25.089
Options Outstanding
Number of Options (in shares)	1,060,965
Weighted Average Remaining Contractual life	6 years 8 months 12 days
Weighted Average Exercise Price (in dollars per share)	$ 20.87
Options Exercisable
Number of Options (in shares)	767,789
Weighted Average Exercise Price (in dollars per share)	$ 20.08
Range of Exercise Prices, $25.09 to $32.569
Summary information about outstanding stock options
Exercise price per share, low end of the range (in dollars per share)	$ 25.09
Exercise price per share, high end of the range (in dollars per share)	$ 32.569
Options Outstanding
Number of Options (in shares)	543,959
Weighted Average Remaining Contractual life	3 years 3 months 18 days
Weighted Average Exercise Price (in dollars per share)	$ 29.74
Options Exercisable
Number of Options (in shares)	543,959
Weighted Average Exercise Price (in dollars per share)	$ 29.74
Range of Exercise Prices, $32.57 to $42.529
Summary information about outstanding stock options
Exercise price per share, low end of the range (in dollars per share)	$ 32.57
Exercise price per share, high end of the range (in dollars per share)	$ 42.529
Options Outstanding
Number of Options (in shares)	933,376
Weighted Average Remaining Contractual life	2 years 9 months 18 days
Weighted Average Exercise Price (in dollars per share)	$ 41.25
Options Exercisable
Number of Options (in shares)	637,737
Weighted Average Exercise Price (in dollars per share)	$ 42.15
Range of Exercise Prices, $42.53 to $55.129
Summary information about outstanding stock options
Exercise price per share, low end of the range (in dollars per share)	$ 42.53
Exercise price per share, high end of the range (in dollars per share)	$ 55.129
Options Outstanding
Number of Options (in shares)	698,801
Weighted Average Remaining Contractual life	10 months 24 days
Weighted Average Exercise Price (in dollars per share)	$ 48.44
Options Exercisable
Number of Options (in shares)	698,801
Weighted Average Exercise Price (in dollars per share)	$ 48.44
Range of Exercise Prices, $55.13 to $70.249
Summary information about outstanding stock options
Exercise price per share, low end of the range (in dollars per share)	$ 55.13
Exercise price per share, high end of the range (in dollars per share)	$ 70.249
Options Outstanding
Number of Options (in shares)	135,250
Weighted Average Remaining Contractual life	6 months
Weighted Average Exercise Price (in dollars per share)	$ 60.47
Options Exercisable
Number of Options (in shares)	135,250
Weighted Average Exercise Price (in dollars per share)	$ 60.47