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Stock-Based Compensation Plans - Additional Information (Detail)
$ in Millions
3 Months Ended
Nov. 26, 2017
USD ($)
shares
Restricted Stock Units (RSUs)  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Additional number of shares authorized 13,429,000
Number of shares available to be granted as RSUs 8,109,000
Time-based RSUs awards outstanding 7,484,000
Performance-based RSUs awards outstanding 127,000
Outstanding performance-based RSUs awards granted, subject to achievement of performance targets 205,000
Unrecognized compensation cost | $ $ 999
Weighted-average recognition period 1 year 9 months 18 days
Seventh Restated 2002 Incentive Plan  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Additional number of shares authorized 23,500,000