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Stock-Based Compensation Plans - Summary of Stock-Based Compensation Expense (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Aug. 31, 2014
Sep. 01, 2013
Sep. 02, 2012
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]      
Total stock-based compensation expense before income taxes $ 327 $ 285 $ 241
Less recognized income tax benefit (109) (94) (79)
Total stock-based compensation expense, net of income taxes $ 218 $ 191 $ 162