Investments - Available-for-sale and Held-to-maturity Investments (Detail) - USD ($) $ in Millions	Nov. 26, 2017	Sep. 03, 2017
Available-for-sale and Held-to-maturity [Line Items]
Available-for-sale, recorded basis	$ 942
Available-for-sale, cost basis, total	949
Held-to-maturity, cost basis	254
Total investments, recorded basis	1,196	$ 1,233
Short-term Investments
Available-for-sale and Held-to-maturity [Line Items]
Unrealized gains/(loss), net	(7)	0
Total investments, recorded basis	1,196	1,233
Total investments, cost basis, total	1,203	1,233
Available-for-sale Securities [Member] | Short-term Investments
Available-for-sale and Held-to-maturity [Line Items]
Available-for-sale, recorded basis	942	948
Unrealized gains/(loss), net	(7)	0
Available-for-sale, cost basis, total	949	948
Available-for-sale Securities [Member] | Short-term Investments | Government and Agency Securities
Available-for-sale and Held-to-maturity [Line Items]
Available-for-sale, recorded basis	941	947
Unrealized gains/(loss), net	(7)	0
Available-for-sale, cost basis, total	948	947
Available-for-sale Securities [Member] | Short-term Investments | Mortgaged-backed Securities
Available-for-sale and Held-to-maturity [Line Items]
Available-for-sale, recorded basis	1	1
Unrealized gains/(loss), net	0	0
Available-for-sale, cost basis, total	1	1
Held-to-maturity Securities [Member] | Short-term Investments
Available-for-sale and Held-to-maturity [Line Items]
Held-to-maturity, recorded basis	254	285
Held-to-maturity, cost basis	254	285
Held-to-maturity Securities [Member] | Short-term Investments | Certificates of deposit
Available-for-sale and Held-to-maturity [Line Items]
Held-to-maturity, recorded basis	254	285
Held-to-maturity, cost basis	$ 254	$ 285