Fair Value Measurements (Details 1) (USD $) In Millions	12 Months Ended
Jul. 01, 2011	Jul. 02, 2010
Changes in Level 3 financial assets measured on a recurring basis
Beginning Balance	$ 15	$ 19
Sales		(3)
Maturities		(1)
Fair Value Measurements (Textuals) [Abstract]
Maturity of auction rate securities	Dates Through 2050
U.S. Government agency securities [Member]
Changes in Level 3 financial assets measured on a recurring basis
Beginning Balance		1
Maturities		(1)
Auction Rate Securities [Member]
Changes in Level 3 financial assets measured on a recurring basis
Beginning Balance		18
Sales		$ (3)

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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- Definition

Sales that have taken place during the period in relation to assets measured at fair value and categorized within Level 3 of the fair value hierarchy.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19207-110258

+ Details

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- Definition

This element represents an asset measured at fair value using significant unobservable inputs (Level 3) which is required for reconciliation purposes of beginning and ending balances.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32
-Subparagraph c
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19207-110258

+ Details

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Balance Type:	debit
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- Definition

Fair Value Measurements.

+ Details

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- Definition

Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Maturities.

+ Details

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- Definition

Maturity of auction rate securities.

+ Details

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