Investments - Available for Sale and Held to Maturity Investments (Details) - USD ($) $ in Millions	Sep. 01, 2019	Sep. 02, 2018
Available For Sale And Held To Maturity [Line Items]
Available-for-sale, recorded basis	$ 722
Available-for-sale, cost basis, total	716
Held-to-maturity, cost basis	338
Total investments, recorded basis	1,060	$ 1,204
Short-term Investments [Member]
Available For Sale And Held To Maturity [Line Items]
Available-for-sale, recorded basis	722
Unrealized Gaines(Losses)	6	(14)
Available-for-sale, cost basis, total	716	912
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	6	14
Held-to-maturity, recorded basis	338	306
Held-to-maturity, cost basis	338	306
Total investments, recorded basis	1,060	1,204
Total investments, cost basis	1,054	1,218
Short-term Investments [Member] \| US Government Agencies Debt Securities [Member]
Available For Sale And Held To Maturity [Line Items]
Available-for-sale, recorded basis	722	898
Available-for-sale, cost basis, total	716	912
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	6	14
Debt Securities, Available-for-sale	722	898
Short-term Investments [Member] \| Certificates of Deposit [Member]
Available For Sale And Held To Maturity [Line Items]
Held-to-maturity, recorded basis	338	306
Held-to-maturity, cost basis	$ 338	$ 306

Available For Sale And Held To Maturity [Line Items]

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The total cost of investments classified as Available for Sale and Held to Maturity.

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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Amount before tax of unrealized gain (loss) in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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