Investments - Available for Sale and Held to Maturity Investments (Detail) (USD $) In Millions, unless otherwise specified	Sep. 01, 2013		Sep. 02, 2012
Available For Sale And Held To Maturity [Line Items]
Available-For-Sale, Cost Basis	$ 1,277
Available-for-sale, Recorded Basis, Total	1,277
Held-to-maturity, cost basis	203
Total investments, recorded basis	1,480		1,326
Short-term Investments
Available For Sale And Held To Maturity [Line Items]
Unrealized gains	0		6
Total investments, cost basis	1,480		1,320
Total investments, recorded basis	1,480		1,326
Short-term Investments | Available-for-sale Securities
Available For Sale And Held To Maturity [Line Items]
Available-For-Sale, Cost Basis	1,277		873
Unrealized gains	0		6
Available-for-sale, Recorded Basis, Total	1,277		879
Short-term Investments | Available-for-sale Securities | US Treasury and Government [Member]
Available For Sale And Held To Maturity [Line Items]
Available-For-Sale, Cost Basis			776
Unrealized gains			6
Available-for-sale, Recorded Basis, Total			782
Short-term Investments | Available-for-sale Securities | Government and agency securities
Available For Sale And Held To Maturity [Line Items]
Available-For-Sale, Cost Basis	1,263	[1]
Unrealized gains	0	[1]
Available-for-sale, Recorded Basis, Total	1,263	[1]
Short-term Investments | Available-for-sale Securities | Corporate notes and bonds
Available For Sale And Held To Maturity [Line Items]
Available-For-Sale, Cost Basis	9		54
Unrealized gains	0		0
Available-for-sale, Recorded Basis, Total	9		54
Short-term Investments | Available-for-sale Securities | FDIC-Insured corporate bonds
Available For Sale And Held To Maturity [Line Items]
Available-For-Sale, Cost Basis			35
Unrealized gains			0
Available-for-sale, Recorded Basis, Total			35
Short-term Investments | Available-for-sale Securities | Asset and mortgage backed securities
Available For Sale And Held To Maturity [Line Items]
Available-For-Sale, Cost Basis	5		8
Unrealized gains	0		0
Available-for-sale, Recorded Basis, Total	5		8
Short-term Investments | Held-to-maturity Securities
Available For Sale And Held To Maturity [Line Items]
Held-to-maturity, cost basis	203
Held-to-maturity, recorded basis	203
Short-term Investments | Held-to-maturity Securities | Banker's Acceptances
Available For Sale And Held To Maturity [Line Items]
Held-to-maturity, cost basis	79
Held-to-maturity, recorded basis	79
Short-term Investments | Held-to-maturity Securities | Certificates of deposit
Available For Sale And Held To Maturity [Line Items]
Held-to-maturity, cost basis	124		447
Held-to-maturity, recorded basis	$ 124		$ 447

[1] Includes U.S. and Canadian government and agency securities.