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Stock-Based Compensation - Schedule of Stock Options Outstanding, Vested or Expected to Vest, and Exercisable (Detail) - Stock Options [Member] - $ / shares
12 Months Ended
Feb. 03, 2018
Jan. 28, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Options Outstanding, Number of Options 8,616,578  
Options Outstanding, Weighted-Average Remaining Contractual Life (in years) 6 years 6 months 29 days  
Options Outstanding, Weighted-Average Exercise Price $ 50.31  
Options Exercisable, Number of Options   6,145,154
Options Exercisable, Weighted-Average Exercise Price   $ 52.08
Vested or expected to vest, Number of Options   7,788,663
Vested or expected to vest, Weighted-Average Remaining Contractual Life (in years)   6 years 4 months 28 days
Vested or expected to vest, Weighted-Average Exercise Price   $ 50.92
Range of Exercise Prices $24.00 - $44.52 [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Range of Exercise Prices, Lower 24.00  
Range of Exercise Prices, Upper $ 44.52  
Options Outstanding, Number of Options 2,471,758  
Options Outstanding, Weighted-Average Remaining Contractual Life (in years) 7 years 11 months 15 days  
Options Outstanding, Weighted-Average Exercise Price $ 34.65  
Options Exercisable, Number of Options   716,698
Options Exercisable, Weighted-Average Exercise Price   $ 32.51
Range of Exercise Prices $45.21 - $45.82 [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Range of Exercise Prices, Lower 45.21  
Range of Exercise Prices, Upper $ 45.82  
Options Outstanding, Number of Options 62,500  
Options Outstanding, Weighted-Average Remaining Contractual Life (in years) 9 years 4 months 28 days  
Options Outstanding, Weighted-Average Exercise Price $ 45.22  
Range of Exercise Prices $46.50 - $46.50 [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Range of Exercise Prices, Lower 46.50  
Range of Exercise Prices, Upper $ 46.50  
Options Outstanding, Number of Options 2,976,826  
Options Outstanding, Weighted-Average Remaining Contractual Life (in years) 4 years 8 months 26 days  
Options Outstanding, Weighted-Average Exercise Price $ 46.50  
Options Exercisable, Number of Options   2,976,826
Options Exercisable, Weighted-Average Exercise Price   $ 46.50
Range of Exercise Prices $47.53 - $75.43 [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Range of Exercise Prices, Lower 47.53  
Range of Exercise Prices, Upper $ 75.43  
Options Outstanding, Number of Options 2,615,885  
Options Outstanding, Weighted-Average Remaining Contractual Life (in years) 7 years 2 months 15 days  
Options Outstanding, Weighted-Average Exercise Price $ 62.24  
Options Exercisable, Number of Options   2,263,415
Options Exercisable, Weighted-Average Exercise Price   $ 62.56
Range of Exercise Prices $76.80 - $101.84 [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Range of Exercise Prices, Lower 76.80  
Range of Exercise Prices, Upper $ 101.84  
Options Outstanding, Number of Options 489,609  
Options Outstanding, Weighted-Average Remaining Contractual Life (in years) 7 years 1 month 20 days  
Options Outstanding, Weighted-Average Exercise Price $ 89.35  
Options Exercisable, Number of Options   188,215
Options Exercisable, Weighted-Average Exercise Price   $ 88.65