v3.5.0.2

Segment Information and Major Customers (Summary Of Net Revenue For Groups Of Similar Products And Services) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Oct. 29, 2016 | Oct. 24, 2015
Segment Reporting, Revenue Reconciling Item [Line Items] |  |
Revenue | $ 12,352 | $ 12,682
Switching |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |
Revenue | 3,716 | 4,009
NGN Routing |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |
Revenue | 2,089 | 1,969
Collaboration |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |
Revenue | 1,081 | 1,115
Data Center |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |
Revenue | 834 | 859
Wireless |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |
Revenue | 632 | 646
Security |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |
Revenue | 540 | 485
Service Provider Video |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |
Revenue | 271 | 687
Other |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |
Revenue | 139 | 74
Product |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |
Revenue | 9,302 | 9,844
Service |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |
Revenue | $ 3,050 | 2,838
SP Video CPE Business |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |
Revenue |  | $ 411

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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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