|
Investments (Details) (USD $)
In Millions, unless otherwise specified
|
3 Months Ended |
9 Months Ended |
|
|
May 30, 2013
|
May 31, 2012
|
Mar. 01, 2012
|
May 30, 2013
|
May 31, 2012
|
Aug. 30, 2012
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
|
|
|
|
| Amortized Cost |
$ 2,563 |
|
|
$ 2,563 |
|
$ 2,693 |
| Gross Unrealized Gains |
1 |
|
|
1 |
|
1 |
| Gross Unrealized Losses |
(1) |
|
|
(1) |
|
0 |
| Fair Value |
2,563 |
|
|
2,563 |
|
2,694 |
| Available-for-sale Securities, Debt Maturities, Amortized Cost Basis [Abstract] |
|
|
|
|
|
|
| Money market funds not due at a single maturity date |
2,018 |
|
|
2,018 |
|
|
| Due in 1 year or less |
198 |
|
|
198 |
|
|
| Due in 1-2 years |
140 |
|
|
140 |
|
|
| Due in 2-4 years |
181 |
|
|
181 |
|
|
| Due after 4 years |
16 |
|
|
16 |
|
|
| Debt Maturities, Amortized Cost Basis |
2,553 |
|
|
2,553 |
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value [Abstract] |
|
|
|
|
|
|
| Money market funds not due at a single maturity date |
2,018 |
|
|
2,018 |
|
|
| Due in 1 year or less |
198 |
|
|
198 |
|
|
| Due in 1-2 years |
141 |
|
|
141 |
|
|
| Due in 2-4 years |
181 |
|
|
181 |
|
|
| Due after 4 years |
16 |
|
|
16 |
|
|
| Debt Securities, Fair Value |
2,554 |
|
|
2,554 |
|
|
| Available-for-sale Securities, Gross Realized Gain (Loss), Disclosures [Abstract] |
|
|
|
|
|
|
| Net unrealized holding gains (losses) reclassified out of accumulated other comprehensive income |
|
|
34 |
|
|
|
| Proceeds from the sale of available-for-sale securities |
346 |
18 |
|
481 |
59 |
|
| Gross realized gains from sale of available-for-sale securities |
|
|
34 |
|
|
|
|
Money market funds [Member]
|
|
|
|
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
|
|
|
|
| Amortized Cost |
2,018 |
|
|
2,018 |
|
2,159 |
| Gross Unrealized Gains |
0 |
|
|
0 |
|
0 |
| Gross Unrealized Losses |
0 |
|
|
0 |
|
0 |
| Fair Value |
2,018 |
|
|
2,018 |
|
2,159 |
|
Corporate bonds [Member]
|
|
|
|
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
|
|
|
|
| Amortized Cost |
255 |
|
|
255 |
|
233 |
| Gross Unrealized Gains |
1 |
|
|
1 |
|
1 |
| Gross Unrealized Losses |
0 |
|
|
0 |
|
0 |
| Fair Value |
256 |
|
|
256 |
|
234 |
|
Government securities [Member]
|
|
|
|
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
|
|
|
|
| Amortized Cost |
96 |
|
|
96 |
|
144 |
| Gross Unrealized Gains |
0 |
|
|
0 |
|
0 |
| Gross Unrealized Losses |
0 |
|
|
0 |
|
0 |
| Fair Value |
96 |
|
|
96 |
|
144 |
|
Commercial paper [Member]
|
|
|
|
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
|
|
|
|
| Amortized Cost |
79 |
|
|
79 |
|
39 |
| Gross Unrealized Gains |
0 |
|
|
0 |
|
0 |
| Gross Unrealized Losses |
0 |
|
|
0 |
|
0 |
| Fair Value |
79 |
|
|
79 |
|
39 |
|
Asset-backed securities [Member]
|
|
|
|
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
|
|
|
|
| Amortized Cost |
72 |
|
|
72 |
|
77 |
| Gross Unrealized Gains |
0 |
|
|
0 |
|
0 |
| Gross Unrealized Losses |
0 |
|
|
0 |
|
0 |
| Fair Value |
72 |
|
|
72 |
|
77 |
|
Certificates of deposit [Member]
|
|
|
|
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
|
|
|
|
| Amortized Cost |
33 |
|
|
33 |
|
31 |
| Gross Unrealized Gains |
0 |
|
|
0 |
|
0 |
| Gross Unrealized Losses |
0 |
|
|
0 |
|
0 |
| Fair Value |
33 |
|
|
33 |
|
31 |
|
Marketable equity securities [Member]
|
|
|
|
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
|
|
|
|
| Amortized Cost |
10 |
|
|
10 |
|
10 |
| Gross Unrealized Gains |
0 |
|
|
0 |
|
0 |
| Gross Unrealized Losses |
(1) |
|
|
(1) |
|
0 |
| Fair Value |
$ 9 |
|
|
$ 9 |
|
$ 10 |