v3.19.1

Segment Information and Major Customers (Summary of Net Revenue for Groups of Similar Products and Services) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Apr. 27, 2019 | Apr. 28, 2018 | Apr. 27, 2019 | Apr. 28, 2018
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |
Revenue, total | $ 12,958 | $ 12,463 | $ 38,476 | $ 36,486
Infrastructure Platforms |  |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |
Revenue, total | 7,545 | 7,180 | 22,315 | 20,870
Applications |  |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |
Revenue, total | 1,431 | 1,310 | 4,315 | 3,697
Security |  |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |
Revenue, total | 707 | 583 | 2,016 | 1,725
Other Products |  |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |
Revenue, total | 39 | 231 | 239 | 775
Other Products | Discontinued operations, held-for-sale | Service Provider Video |  |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |
Revenue, total | 0 | 219 | 168 | 697
Total Product |  |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |
Revenue, total | 9,722 | 9,304 | 28,885 | 27,067
Service |  |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |
Revenue, total | $ 3,236 | $ 3,159 | $ 9,591 | $ 9,419

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