The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition.

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-Publisher FASB

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-Paragraph 51

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

+ References

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-Publisher FASB

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-Topic 805

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- Definition

This element represents the acquisition-date fair value of the total consideration transferred which consists of the sum of the acquisition-date fair values of the assets transferred by the acquirer, the liabilities incurred by the acquirer to former owners of the acquiree, and the equity interests issued by the acquirer.

+ References

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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- Definition

The cash inflow associated with the acquisition of business during the period (for example, cash that was held by the acquired business).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

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-URI http://asc.fasb.org/extlink&oid=6516133

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- Definition

The number of businesses acquired by the entity during the period.

+ References

No definition available.

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Business Combinations - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jan. 26, 2013	Jan. 28, 2012	Apr. 27, 2013
Business Acquisition [Line Items]
Business Combination, Consideration Transferred	$ 1,207
Cash Acquired from Acquisition	131
Business Combination, Acquisition Related Costs	17	2
Business Acquisition, Cost of Acquired Entity, Purchase Price			475
NDS Group Limited [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred	5,005
Meraki, Inc. [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred	974
Other Acquisition [Member]
Business Acquisition [Line Items]
Number of Businesses Acquired	7
Business Combination, Consideration Transferred	$ 233