STOCK PLANS AND SHARE-BASED COMPENSATION (Performance-based Awards and Restricted Stock Units) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Performance Based Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date fair value of awards released			$ 2,000,000
Number of performance-based awards shares released as percentage of target number, minimum			0.00%
Number of performance-based awards shares released as percentage of target number, maximum			200.00%
Reduction in number of shares available for issuance under the 2007 Plan per award granted			2.0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Outstanding, shares, at January 1, 2013			102,000
Outstanding, weighted-average grant date fair value per share, at January 1, 2013			$ 37.60
Granted, shares			101,000
Granted, weighted-average grant date fair value per share	$ 41.78	$ 42.68	$ 38.62	$ 37.60
Vested, shares			(54,000)
Vested, weighted-average grant date fair value per share			$ 37.60
Change in units due to performance achievement for PSUs vested in the year, shares			(48,000)
Change in units due to performance achievement for PSUs vested in the year per share			$ 37.60
Forfeited or expired, shares			(2,000)
Forfeited or expired, weighted-average grant date fair value per share			$ 41.79
Outstanding, shares, at June 30, 2013	99,000		99,000
Outstanding, weighted-average grant date fair value per share, at June 30, 2013	$ 38.50		$ 38.50
Outstanding and expected to vest, weighted-average remaining contractual term, at June 30, 2013 (in years)			6 months
Outstanding, aggregate intrinsic value, at June 30, 2013	4,024,000		4,024,000
Outstanding and expected to vest at June 30, 2013	87,000		87,000
Outstanding and expected to vest, weighted-average remaining contractual term, at June 30, 2013 (in years)			6 months
Outstanding and expected to vest, aggregate intrinsic value, at June 30, 2013	3,520,000		3,520,000
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date fair value of awards released	6,500,000	3,700,000	6,800,000	3,800,000
Reduction in number of shares available for issuance under the 2007 Plan per award granted	2.0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Outstanding, shares, at January 1, 2013			573,000
Outstanding, weighted-average grant date fair value per share, at January 1, 2013			$ 38.21
Granted, shares			353,000
Granted, weighted-average grant date fair value per share	$ 40.80	$ 41.97	$ 38.28	$ 41.88
Vested, shares			(176,000)
Vested, weighted-average grant date fair value per share			$ 38.44
Forfeited or expired, shares			(35,000)
Forfeited or expired, weighted-average grant date fair value per share			$ 39.17
Outstanding, shares, at June 30, 2013	715,000		715,000
Outstanding, weighted-average grant date fair value per share, at June 30, 2013	$ 38.43		$ 38.43
Outstanding and expected to vest, weighted-average remaining contractual term, at June 30, 2013 (in years)			1 year 10 months 6 days
Outstanding, aggregate intrinsic value, at June 30, 2013	29,017,000		29,017,000
Outstanding and expected to vest at June 30, 2013	656,000		656,000
Outstanding and expected to vest, weighted-average remaining contractual term, at June 30, 2013 (in years)			1 year 9 months 26 days
Outstanding and expected to vest, aggregate intrinsic value, at June 30, 2013	$ 26,595,000		$ 26,595,000