|
Segment Information and Major Customers (Summary Of Net Sales For Groups Of Similar Products And Services) (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Jul. 28, 2012
|
Jul. 30, 2011
|
Jul. 31, 2010
|
|
| Segment Reporting, Revenue Reconciling Item [Line Items] | |||
| Net sales | $ 46,061 | $ 43,218 | $ 40,040 |
|
Service
|
|||
| Segment Reporting, Revenue Reconciling Item [Line Items] | |||
| Net sales | 9,735 | 8,692 | 7,620 |
|
Sales Revenue, Product Line | Switching
|
|||
| Segment Reporting, Revenue Reconciling Item [Line Items] | |||
| Net sales | 14,531 | 14,130 | 14,074 |
|
Sales Revenue, Product Line | NGN Routing
|
|||
| Segment Reporting, Revenue Reconciling Item [Line Items] | |||
| Net sales | 8,425 | 8,264 | 7,868 |
|
Sales Revenue, Product Line | Collaboration
|
|||
| Segment Reporting, Revenue Reconciling Item [Line Items] | |||
| Net sales | 4,139 | 4,013 | 2,981 |
|
Sales Revenue, Product Line | Service Provider Video
|
|||
| Segment Reporting, Revenue Reconciling Item [Line Items] | |||
| Net sales | 3,858 | 3,483 | 3,294 |
|
Sales Revenue, Product Line | Wireless
|
|||
| Segment Reporting, Revenue Reconciling Item [Line Items] | |||
| Net sales | 1,699 | 1,427 | 1,134 |
|
Sales Revenue, Product Line | Security
|
|||
| Segment Reporting, Revenue Reconciling Item [Line Items] | |||
| Net sales | 1,349 | 1,200 | 1,302 |
|
Sales Revenue, Product Line | Data Center
|
|||
| Segment Reporting, Revenue Reconciling Item [Line Items] | |||
| Net sales | 1,298 | 694 | 196 |
|
Sales Revenue, Product Line | Other products
|
|||
| Segment Reporting, Revenue Reconciling Item [Line Items] | |||
| Net sales | 1,027 | 1,315 | 1,571 |
|
Sales Revenue, Product Line | Product
|
|||
| Segment Reporting, Revenue Reconciling Item [Line Items] | |||
| Net sales | $ 36,326 | $ 34,526 | $ 32,420 |