|
Segment Information And Major Customers (Net Sales For Groups Of Similar Products And Services) (Detail) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | |
|---|---|---|
|
Oct. 27, 2012
|
Oct. 29, 2011
|
|
| Segment Reporting, Revenue Reconciling Item [Line Items] | ||
| Revenues | $ 11,876 | $ 11,256 |
|
Service [Member]
|
||
| Segment Reporting, Revenue Reconciling Item [Line Items] | ||
| Revenues | 2,579 | 2,304 |
|
Sales Revenue, Product Line [Member] | Switching [Member]
|
||
| Segment Reporting, Revenue Reconciling Item [Line Items] | ||
| Revenues | 3,616 | 3,687 |
|
Sales Revenue, Product Line [Member] | Next Generation Networks [Member]
|
||
| Segment Reporting, Revenue Reconciling Item [Line Items] | ||
| Revenues | 2,052 | 2,094 |
|
Sales Revenue, Product Line [Member] | Service Provider Video [Member]
|
||
| Segment Reporting, Revenue Reconciling Item [Line Items] | ||
| Revenues | 1,148 | 883 |
|
Sales Revenue, Product Line [Member] | Collaboration [Member]
|
||
| Segment Reporting, Revenue Reconciling Item [Line Items] | ||
| Revenues | 1,020 | 1,108 |
|
Sales Revenue, Product Line [Member] | Wireless [Member]
|
||
| Segment Reporting, Revenue Reconciling Item [Line Items] | ||
| Revenues | 486 | 353 |
|
Sales Revenue, Product Line [Member] | Data Center [Member]
|
||
| Segment Reporting, Revenue Reconciling Item [Line Items] | ||
| Revenues | 417 | 259 |
|
Sales Revenue, Product Line [Member] | Security [Member]
|
||
| Segment Reporting, Revenue Reconciling Item [Line Items] | ||
| Revenues | 338 | 319 |
|
Sales Revenue, Product Line [Member] | Other Products [Member]
|
||
| Segment Reporting, Revenue Reconciling Item [Line Items] | ||
| Revenues | 220 | 249 |
|
Sales Revenue, Product Line [Member] | Product [Member]
|
||
| Segment Reporting, Revenue Reconciling Item [Line Items] | ||
| Revenues | $ 9,297 | $ 8,952 |