STOCK PLANS (Summary of Stock Option Activity) (Details) (Stock options, USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Stock options
Stock Options, Shares
Balance at beginning of year (in shares)	3,632,463	3,779,824	3,596,884
Granted (in shares)	412,980	459,263	491,010
Exercised (in shares)	(962,029)	(572,795)	(260,084)
Canceled (in shares)	(22,470)	(33,829)	(47,986)
Balance at end of year (in shares)	3,060,944	3,632,463	3,779,824
Exercisable at end of year (in shares)	2,208,455	2,677,071	2,749,168
Stock Options, Weighted Average Exercise Price
Balance at beginning of year, weighted average exercise price (in dollars per share)	$ 26.05	$ 23.99	$ 22.28
Shares granted, weighted average exercise price (in dollars per share)	$ 47.66	$ 35.34	$ 31.29
Shares exercised, weighted average exercise price (in dollars per share)	$ 19.52	$ 19.82	$ 13.49
Shares canceled, weighted average exercise price (in dollars per share)	$ 24.07	$ 26.62	$ 27.84
Balance at end of year, weighted average exercise price (in dollars per share)	$ 30.98	$ 26.05	$ 23.99
Exercisable at end of year, weighted average exercise price (in dollars per share)	$ 27.19	$ 23.73	$ 22.40