STOCK-BASED COMPENSATION Stock Option Activity (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Jan. 29, 2012 Y	Jan. 30, 2011 Y	Jan. 31, 2010
Assumptions used to estimate fair value of service-based stock options [Abstract]
Weighted average risk-free interest rate	2.62%	2.63%	2.58%
Weighted average expected option term (in years)	6.25	6.25	6.59
Weighted average expected volatility	44.35%	42.60%	38.92%
Expected annual dividends per share	$ 0.15	$ 0.15	$ 0.15
Weighted average estimated fair value per option	$ 29.81	$ 26.67	$ 11.16
Service-based stock option activity [Roll Forward]
Service-based stock options, outstanding, beginning of period	2,853
Service-based stock options, granted	195
Service-based stock options, exercised	843
Service-based stock options, cancelled	16
Service-based stock options, outstanding, end of period	2,189	2,853
Service-based stock options, exercisable	1,366
Service-based stock options, outstanding, weighted average price per option, beginning of period	$ 33.41
Service-based stock options, granted, weighted average price per option	$ 65.16
Service-based stock options, exercised, weighted average price per option	$ 29.19
Service-based stock options, cancelled, weighted average price per option	$ 46.30
Service-based stock options, outstanding, weighted average price per option, end of period	$ 37.77	$ 33.41
Service-based stock options, exercisable, weighted average price per option	$ 35.26
Service-based stock options, outstanding, weighted average remaining contractual life (in years), beginning of period	5.7
Service-based stock options, outstanding, weighted average remaining contractual life (in years), end of period	5.7	5.7
Service-based stock options, exercisable, weighted average remaining contractual life (in years)	4.4
Service-based stock options, outstanding, aggregate intrinsic value, beginning of period	$ 70,796
Service-based stock options, outstanding, aggregate intrinsic value, end of period	85,200	70,796
Service-based stock options, exercisable, aggregate intrinsic value	56,611
Options, additional disclosures:
Service-based stock options, granted, aggregate grant date fair value	5,819	4,528	7,397
Service-based stock options, vested, aggregate grant date fair value	4,707	4,259	7,831
Service-based stock options, exercised, total intrinsic value of options	34,364	32,389	6,380
Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum term, options (in years)	10 years
Options, non-vested, unrecognized compensation expense	$ 9,141
Options, non-vested, unrecognized compensation expense, period for recognition (in years)	1.8