Marketable Securities (Summary Of Cash Equivalents And Marketable Securities) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 28, 2014	Jun. 29, 2014
Marketable Securities [Abstract]
Due in one year or less	$ 500,832	$ 470,453
Due after one year through three years	435,745	385,011
Total	$ 936,577	$ 855,464

Amount of debt securities categorized neither as held-to-maturity nor trading.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

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-Paragraph 1

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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-Publisher FASB

-Name Accounting Standards Codification

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