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Goodwill and Intangible Assets - Annual Impairment Analyses (Details) (Goodwill [Member])	12 Months Ended
	Jul. 27, 2013	Jul. 28, 2012	Jul. 30, 2011	Jul. 27, 2013 Maximum	Jul. 28, 2012 Maximum	Jul. 30, 2011 Maximum	Jul. 27, 2013 Minimum	Jul. 28, 2012 Minimum	Jul. 30, 2011 Minimum
Finite-Lived Intangible Assets [Line Items]
Terminal growth rate range				1.50%	1.50%	1.50%	2.50%	3.00%	3.00%
Discount rate	11.50%	13.00%	13.50%

X

- Definition

Fair Value Assumptions, Terminal Growth Rate

+ References

No definition available.

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- Definition

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ 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 (bbb)

-URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258

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