Segment Information and Major Customers (Summary of Net Revenue for Groups of Similar Products and Services) (Details) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Oct. 27, 2018 |
Oct. 28, 2017 |
|
| Segment Reporting, Revenue Reconciling Item [Line Items] | ||
| Revenue, total | $ 13,072 | $ 12,136 |
| Infrastructure Platforms | ||
| Segment Reporting, Revenue Reconciling Item [Line Items] | ||
| Revenue, total | 7,642 | 6,980 |
| Applications | ||
| Segment Reporting, Revenue Reconciling Item [Line Items] | ||
| Revenue, total | 1,419 | 1,203 |
| Security | ||
| Segment Reporting, Revenue Reconciling Item [Line Items] | ||
| Revenue, total | 651 | 585 |
| Other Products | ||
| Segment Reporting, Revenue Reconciling Item [Line Items] | ||
| Revenue, total | 178 | 286 |
| Total Product | ||
| Segment Reporting, Revenue Reconciling Item [Line Items] | ||
| Revenue, total | 9,890 | 9,054 |
| Service | ||
| Segment Reporting, Revenue Reconciling Item [Line Items] | ||
| Revenue, total | $ 3,182 | $ 3,082 |