Fair Value Measurements - Assets measured (Details) (USD $) In Millions, unless otherwise specified	Dec. 04, 2014	Aug. 28, 2014
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Short-term investments	$ 466	$ 384
Long-term marketable investments	1,077	819
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Cash equivalents	1,433	1,705
Short-term investments	466	384
Long-term marketable investments	1,077	819
Restricted cash	24	27
Total assets measured at fair value on a recurring basis	3,000	2,935
Money market funds [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Cash equivalents	866	1,281
Certificates of deposit [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Cash equivalents	528	402
Short-term investments	24	8
Long-term marketable investments	5	0
Restricted cash	24	27
Government securities [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Cash equivalents	31	0
Short-term investments	136	136
Long-term marketable investments	273	284
Commercial paper [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Cash equivalents	7	22
Corporate bonds [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Cash equivalents	1	0
Short-term investments	217	154
Long-term marketable investments	581	407
Commercial Paper, Not Included with Cash and Cash Equivalents [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Short-term investments	86	85
Asset-backed securities [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Short-term investments	3	1
Long-term marketable investments	217	127
Marketable equity securities [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Long-term marketable investments	1	1
Level 1 [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Cash equivalents	866	1,281
Short-term investments	0	0
Long-term marketable investments	1	1
Restricted cash	0	0
Total assets measured at fair value on a recurring basis	867	1,282
Level 1 [Member] \| Money market funds [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Cash equivalents	866	1,281
Level 1 [Member] \| Certificates of deposit [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Cash equivalents	0	0
Short-term investments	0	0
Long-term marketable investments	0	0
Restricted cash	0	0
Level 1 [Member] \| Government securities [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Cash equivalents	0	0
Short-term investments	0	0
Long-term marketable investments	0	0
Level 1 [Member] \| Commercial paper [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Cash equivalents	0	0
Level 1 [Member] \| Corporate bonds [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Cash equivalents	0	0
Short-term investments	0	0
Long-term marketable investments	0	0
Level 1 [Member] \| Commercial Paper, Not Included with Cash and Cash Equivalents [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Short-term investments	0	0
Level 1 [Member] \| Asset-backed securities [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Short-term investments	0	0
Long-term marketable investments	0	0
Level 1 [Member] \| Marketable equity securities [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Long-term marketable investments	1	1
Level 2 [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Cash equivalents	567	424
Short-term investments	466	384
Long-term marketable investments	1,076	818
Restricted cash	24	27
Total assets measured at fair value on a recurring basis	2,133	1,653
Level 2 [Member] \| Money market funds [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Cash equivalents	0	0
Level 2 [Member] \| Certificates of deposit [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Cash equivalents	528	402
Short-term investments	24	8
Long-term marketable investments	5	0
Restricted cash	24	27
Level 2 [Member] \| Government securities [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Cash equivalents	31	0
Short-term investments	136	136
Long-term marketable investments	273	284
Level 2 [Member] \| Commercial paper [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Cash equivalents	7	22
Level 2 [Member] \| Corporate bonds [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Cash equivalents	1	0
Short-term investments	217	154
Long-term marketable investments	581	407
Level 2 [Member] \| Commercial Paper, Not Included with Cash and Cash Equivalents [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Short-term investments	86	85
Level 2 [Member] \| Asset-backed securities [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Short-term investments	3	1
Long-term marketable investments	217	127
Level 2 [Member] \| Marketable equity securities [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Long-term marketable investments	$ 0	$ 0

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)

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Amount of investment in debt and equity securities categorized neither as trading securities nor held-to-maturity securities and intended be sold or mature one year or operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 25

-Paragraph 1

-Subparagraph (b)

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- Definition

Investments in debt and equity securities which are categorized neither as held-to-maturity nor trading and which are intended to be sold or mature more than one year from the balance sheet date or operating cycle, if longer. Such securities are reported at fair value; unrealized gains (losses) related to Available-for-sale Securities are excluded from earnings and reported in a separate component of shareholders' equity (other comprehensive income), unless the Available-for-sale security is designated as a hedge or is determined to have had an other than temporary decline in fair value below its amortized cost basis. All or a portion of the unrealized holding gain (loss) of an Available-for-sale security that is designated as being hedged in a fair value hedge is recognized in earnings during the period of the hedge, as are other than temporary declines in fair value below the cost basis for investments in equity securities and debt securities that an entity intends to sell or it is more likely than not that it will be required to sell before the recovery of its amortized cost basis. Other than temporary declines in fair value below the cost basis for debt securities categorized as Available-for-sale that an entity does not intend to sell and for which it is not more likely than not that the entity will be required to sell before the recovery of its amortized cost basis are bifurcated into credit losses and losses related to all other factors. Other than temporary declines in fair value below cost basis related to credit losses are recognized in earnings, and losses related to all other factors are recognized in other comprehensive income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

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- Definition

Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Cash

-URI http://asc.fasb.org/extlink&oid=6506951

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Cash Equivalents

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- Definition

The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. This element is for unclassified presentations; for classified presentations there is a separate and distinct element.

+ References

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 1

-Article 5

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

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