Investments - Available-for-sale and Held-to-maturity Investments (Detail) - USD ($) $ in Millions	6 Months Ended
	Feb. 16, 2020	Sep. 01, 2019
Available-for-sale and Held-to-maturity [Line Items]
Document Period End Date	Feb. 16, 2020
Available-for-sale, cost basis, total	$ 523
Held-to-maturity, cost basis	400
Total investments, recorded basis	929	$ 1,060
Short-term Investments
Available-for-sale and Held-to-maturity [Line Items]
Available-for-sale, cost basis, total	523	716
Unrealized gains/(loss), net	6	6
Available-for-sale, recorded basis, total	529	722
Held-to-maturity, recorded basis	400	338
Held-to-maturity, cost basis	400	338
Total investments, recorded basis	929	1,060
Total investments, cost basis, total	923	1,054
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	6	6
Short-term Investments | Government and Agency Securities
Available-for-sale and Held-to-maturity [Line Items]
Available-for-sale, cost basis, total	523	716
Available-for-sale, recorded basis, total	529	722
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	6	6
Short-term Investments | Certificates of deposit
Available-for-sale and Held-to-maturity [Line Items]
Held-to-maturity, recorded basis	400	338
Held-to-maturity, cost basis	$ 400	$ 338