|
Investments (Details) (USD $)
In Millions, unless otherwise specified
|
3 Months Ended |
6 Months Ended |
|
|
Feb. 27, 2014
|
Feb. 28, 2013
|
Feb. 27, 2014
|
Feb. 28, 2013
|
Aug. 29, 2013
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
|
|
|
| Fair value of available-for-sale investments |
$ 1,981 |
|
$ 1,981 |
|
$ 2,283 |
| Available-for-sale Securities, Debt Maturities, Fair Value [Abstract] |
|
|
|
|
|
| Money market funds not due at a single maturity date |
1,137 |
|
1,137 |
|
|
| Due in 1 year or less |
292 |
|
292 |
|
|
| Due in 1-2 years |
268 |
|
268 |
|
|
| Due in 2-4 years |
266 |
|
266 |
|
|
| Due after 4 years |
17 |
|
17 |
|
|
| Debt Securities, Fair Value |
1,980 |
|
1,980 |
|
|
| Available-for-sale Securities, Gross Realized Gain (Loss), Disclosures [Abstract] |
|
|
|
|
|
| Proceeds from the sale of available-for-sale securities |
110 |
67 |
223 |
160 |
|
|
Money market funds [Member]
|
|
|
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
|
|
|
| Fair value of available-for-sale investments |
1,137 |
|
1,137 |
|
1,188 |
|
Corporate bonds [Member]
|
|
|
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
|
|
|
| Fair value of available-for-sale investments |
456 |
|
456 |
|
414 |
|
Government securities [Member]
|
|
|
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
|
|
|
| Fair value of available-for-sale investments |
141 |
|
141 |
|
168 |
|
Asset-backed securities [Member]
|
|
|
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
|
|
|
| Fair value of available-for-sale investments |
123 |
|
123 |
|
97 |
|
Certificates of deposit [Member]
|
|
|
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
|
|
|
| Fair value of available-for-sale investments |
100 |
|
100 |
|
349 |
|
Commercial paper [Member]
|
|
|
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
|
|
|
| Fair value of available-for-sale investments |
23 |
|
23 |
|
61 |
|
Marketable equity securities [Member]
|
|
|
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
|
|
|
| Fair value of available-for-sale investments |
$ 1 |
|
$ 1 |
|
$ 6 |