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Stock-Based Compensation Plans - Summary of RSU Transactions (Details) - $ / shares
shares in Thousands
12 Months Ended
Sep. 02, 2018
Sep. 03, 2017
Aug. 28, 2016
Number of units      
Outstanding at the end of 2017 8,199    
Granted 3,722    
Vested and delivered (4,088)    
Forfeited (255)    
Outstanding at the end of 2018 7,578 8,199  
Weighted average grant date fair value      
Outstanding at the end of 2017 $ 128.15    
Granted 156.19 $ 144.12 $ 153.46
Vested and delivered 129.49    
Forfeited 138.57    
Outstanding at the end of 2018 $ 140.85 $ 128.15