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Subsequent Events (Details)
$ / shares in Units, $ in Millions
3 Months Ended 6 Months Ended
Aug. 23, 2017
$ / shares
Oct. 28, 2017
USD ($)
lease
Jul. 29, 2017
$ / shares
Jul. 30, 2016
$ / shares
Jul. 29, 2017
$ / shares
Jul. 30, 2016
$ / shares
Dividends            
Cash dividend announced on common stock (in dollars per share) | $ / shares     $ 0.225 $ 0.225 $ 0.45 $ 0.45
Minimum | Lease modification with a common landlord | North America            
Other            
Lease expiration date (by year)         2018  
Maximum | Lease modification with a common landlord | North America            
Other            
Lease expiration date (by year)         2026  
Subsequent Events            
Dividends            
Cash dividend announced on common stock (in dollars per share) | $ / shares $ 0.225          
Payment date of cash dividend Sep. 22, 2017          
Record date of cash dividend Sep. 06, 2017          
Subsequent Events | Lease modification with a common landlord | North America            
Other            
Number of leases | lease   26        
Up-front payment related to lease modification   $ 22        
Lease termination charge   12        
Advance rent payments   $ 10        
Subsequent Events | Minimum | Lease modification with a common landlord | North America            
Other            
Lease expiration date (by year)   2018        
Subsequent Events | Maximum | Lease modification with a common landlord | North America            
Other            
Lease expiration date (by year)   2020