Stock-Based Compensation Plans - Summary of Stock Option Transactions (Details) (USD $) In Millions, except Share data in Thousands, unless otherwise specified	9 Months Ended
	May 11, 2014
Number of options
Number of options outstanding at September 1, 2013	1,947
Exercised	(591)
Number of options outstanding at May 11, 2014	1,356
Weighted-average exercise price
Weighted-average exercise price at September 1, 2013	$ 39.70
Exercised	$ 36.89
Weighted-average exercise price at May 11, 2014	$ 40.92
Weighted Average Remaining Contractual Term [Abstract]
Weighted-average remaining contractual term (in years)	10 months 24 days
Aggregate intrinsic value
Aggregate intrinsic value	$ 101	[1]

[1] The difference between the exercise price and the market value of common stock at May 11, 2014.