Investments - Available-for-sale and Held-to-maturity Investments (Detail) - USD ($) $ in Millions	May 10, 2020	Sep. 01, 2019
Available-for-sale and Held-to-maturity [Line Items]
Available-for-sale, cost basis, total	$ 464
Held-to-maturity, cost basis	470
Total investments, recorded basis	948	$ 1,060
Short-term Investments
Available-for-sale and Held-to-maturity [Line Items]
Available-for-sale, cost basis, total	464	716
Unrealized gains/(loss), net	14	6
Available-for-sale, recorded basis, total	478	722
Held-to-maturity, recorded basis	470	338
Held-to-maturity, cost basis	470	338
Total investments, recorded basis	948	1,060
Total investments, cost basis, total	934	1,054
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	14	6
Short-term Investments | Government and Agency Securities
Available-for-sale and Held-to-maturity [Line Items]
Available-for-sale, cost basis, total	464	716
Available-for-sale, recorded basis, total	478	722
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	14	6
Short-term Investments | Certificates of deposit
Available-for-sale and Held-to-maturity [Line Items]
Held-to-maturity, recorded basis	470	338
Held-to-maturity, cost basis	$ 470	$ 338