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Share-Based Plans (Details) (USD $)
12 Months Ended 12 Months Ended 81 Months Ended 12 Months Ended
Jan. 28, 2012
Years
Jan. 29, 2011
Jan. 30, 2010
Jan. 31, 2009
Jan. 28, 2012
Stock Options [Member]
Years
Jan. 28, 2012
Stock Options [Member]
May 31, 2008
Stock Options [Member]
Jan. 27, 2007
Stock Options [Member]
May 31, 2005
Stock Options [Member]
Jan. 28, 2012
Share Based Awards 2010 [Member]
Jan. 28, 2012
Share Based Awards 2011 [Member]
Jan. 28, 2012
Restricted Stock [Member]
Jan. 29, 2011
Restricted Stock [Member]
Jan. 30, 2010
Restricted Stock [Member]
Jan. 31, 2009
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                              
Share-based Compensation Expense $ 25,000,000 $ 24,600,000 $ 20,300,000                        
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]                              
Weighted-average fair value of stock options granted $ 14.43 $ 13.64 $ 7.89                        
Risk-free interest rates 1.80% 2.20% 1.70%                        
Expected life (years) 4.2 4.2 4.3                        
Expected volatility 41.70% 45.60% 56.00%                        
Expected annual forfeiture rate 1.50% 1.50% 1.50%                        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]                              
Outstanding stock options 3,578,683 4,496,633 3,960,568                        
Granted 918,500 997,500 967,500                        
Exercised (500,085) (1,807,850) (361,560)                        
Forfeitured (320,675) (107,600) (69,875)                        
Outstanding stock options 3,676,423 3,578,683 4,496,633                        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]                              
Options, Vested and Expected to Vest, Outstanding, Number 3,617,383                            
Options, Exercisable, Number 1,666,672                            
Options, Outstanding, Weighted Average Exercise Price $ 28.36 $ 24.59 $ 19.46 $ 19.42                      
Options, Grants in Period, Weighted Average Exercise Price $ 40.85 $ 35.92 $ 17.62                        
Options, Exercises in Period, Weighted Average Exercise Price $ 20.81 $ 17.98 $ 13.64                        
Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price $ 33.84 $ 26.10 $ 21.80                        
Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price $ 28.39                            
Options, Exercisable, Weighted Average Exercise Price $ 23.16                            
Options, Outstanding, Weighted Average Remaining Contractual Term 4.2                            
Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term 4.2                            
Options, Exercisable, Weighted Average Remaining Contractual Term 3.1                            
Options, Outstanding, Intrinsic Value 43,724,000                            
Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value 42,924,000                            
Options, Exercisable, Intrinsic Value 28,076,000                            
Award Requisite Service Period         4 years             5 years      
Award Expiration Period From Grant Date         7 years                    
Number of Shares Authorized             2,100,000 2,001,142 1,250,000            
Award Vesting Period                   2 years   3 years      
Award Vesting Period, Minimum                     P2Y        
Award Vesting Period, Maximum                     P3Y        
Award Term Following Termination of Employment, Death, or Disability         1                    
Annual Increase in Number of Shares Authorized as a Percent           0.75%                  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]                              
Nonvested, beginning balance                       503,784 849,488 716,275  
Grants                       564,589 507,684 471,688  
Vested                       (271,784) (847,688) (327,675)  
Forfeited                       (55,300) (5,700) (10,800)  
Nonvested, ending balance                       741,289 503,784 849,488  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]                              
Nonvested, Weighted Average Grant Date Fair Value                       $ 39.40 $ 35.88 $ 19.48 $ 24.81
Grants in Period, Weighted Average Grant Date Fair Value                       $ 40.76 $ 35.88 $ 17.91  
Vested in Period, Weighted Average Grant Date Fair Value                       $ 35.84 $ 19.46 $ 28.85  
Forfeited in Period, Weighted Average Grant Date Fair Value                       $ 38.72 $ 33.44 $ 20.50  
Total intrinsic value of stock options exercised 8,747,000 32,537,000 5,079,000                        
Total fair value of restricted stock vested 11,618,000 31,150,000 6,954,000                        
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized $ 26,300,000                            
Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition 1.7