v2.4.0.8

Employee Benefit Plans (Summary Of Share-Based Compensation Expense) (Detail) (USD $) In Millions, unless otherwise specified | 3 Months Ended
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Oct. 26, 2013 | Oct. 27, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Total Share-based Compensation Expense | $ 309 | $ 306
Income tax benefit for employee share-based compensation expense | 78 | 79
Cost Of Sales Product [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Total Share-based Compensation Expense | 10 | 10
Cost Of Sales-Service [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Total Share-based Compensation Expense | 33 | 35
Cost of Sales [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Total Share-based Compensation Expense | 43 | 45
Operating Expenses [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Total Share-based Compensation Expense | 266 | 261
Research And Development [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Total Share-based Compensation Expense | 92 | 84
Sales And Marketing [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Total Share-based Compensation Expense | 123 | 130
General And Administrative [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Total Share-based Compensation Expense | 54 | 50
Restructuring And Other Charges [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Total Share-based Compensation Expense | $ (3) | $ (3)

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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F + Details
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Period Type: | duration

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- Definition The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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Period Type: | duration

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- Details
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