Stock Compensation Plans And Capital Stock Transactions (Narrative) (Details) (USD $)	12 Months Ended			1 Months Ended	12 Months Ended		0 Months Ended		12 Months Ended
	Jan. 28, 2012 years	Jan. 29, 2011 years	Jan. 30, 2010 years	Apr. 30, 2002 Omnibus Stock And Incentive Plan [Member]	Jan. 28, 2012 Omnibus Stock And Incentive Plan [Member] years	Oct. 29, 2011 Omnibus Stock And Incentive Plan [Member]	Nov. 17, 2011 Restricted Stock [Member]	Nov. 23, 2011 Restricted Stock [Member]	Jan. 28, 2012 Restricted Stock [Member]	Jan. 29, 2011 Restricted Stock [Member]	Jan. 30, 2010 Restricted Stock [Member]	Jan. 28, 2012 Performance-Based Awards [Member]	Jan. 29, 2011 Performance-Based Awards [Member]	Jan. 30, 2010 Performance-Based Awards [Member]	Jan. 28, 2012 Unvested Stock Options [Member] years	Jan. 28, 2012 Nonvested Restricted Stock Awards [Member] years	Jan. 28, 2012 Stock Option Awards [Member]	Jan. 28, 2012 Maximum [Member] Performance-Based Awards [Member]	Jan. 29, 2011 Maximum [Member] Performance-Based Awards [Member]	Jan. 30, 2010 Maximum [Member] Performance-Based Awards [Member]	Jan. 30, 2010 Minimum [Member]	Jan. 28, 2012 Minimum [Member] Performance-Based Awards [Member]	Jan. 29, 2011 Minimum [Member] Performance-Based Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense related to stock-based awards	$ 15,198,000	$ 10,548,000	$ 7,402,000
Tax benefit associated with stock-based compensation	5,800,000	4,000,000	2,800,000
Stock option awards, vesting period, years	three				three				three			one	two	three			3
Shares authorized based on performance awards																		133,333	133,333	133,333	0	0	0
Shares targeted based on performance awards												100,000	100,000	100,000
Performance-based restricted stock, shares earned	74,010
Percentage of awards earned upon achievement of certain Company-specific performance goals												100.00%
Common stock shares for future issuance				9,710,280
Increase in the total number of shares of Common Stock				10,000,000
Shares available for future grants						5,100,000
Shares earned based on performance awards			133,333										133,333
Expected term (years)	4.5	4.5	4.5		10
Nonqualified stock options outstanding, number of shares	6,303,378	6,033,101			6,300,000
Contractual term, years	10
Total intrinsic value of options exercised	5,200,000	4,900,000	5,900,000
Pro-rata vesting period, years	3
Total unrecognized compensation expense related to unvested stock options															7,500,000	13,600,000
Weighted average period for unrecognized stock-based compensation expense to be recognized, years															1.9	2.7
Cash received from option exercises and purchases under the Employee Stock Purchase Plan	4,500,000
Tax benefit realized for the tax deduction from option exercises of stock option awards	2,000,000
Total fair value of shares of restricted stock									5,300,000	5,600,000	5,400,000
Percentage of the value of stock immediately prior to the beginning of each offering period	85.00%
Shares purchased under the ESPP	72,000	85,000	60,000
Percentage of discount at purchase	15.00%
Shares repurchased and retired									14,100,000
Cost of shares repurchased and retired									182,400,000
Share repurchase program authorized amount							200,000,000
Remaining balance of share repurchase program	$ 175,000,000							$ 24,200,000