v3.5.0.2

Segment Information and Major Customers (Summary Of Reportable Segments) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Oct. 29, 2016 | Oct. 24, 2015
Segment Reporting Information [Line Items] |  |
Revenue, total | $ 12,352 | $ 12,682
Gross margin | 7,884 | 7,832
Americas |  |
Segment Reporting Information [Line Items] |  |
Revenue, total | 7,443 | 7,792
Gross margin | 4,833 | 4,943
EMEA |  |
Segment Reporting Information [Line Items] |  |
Revenue, total | 3,013 | 3,094
Gross margin | 2,013 | 1,989
APJC |  |
Segment Reporting Information [Line Items] |  |
Revenue, total | 1,896 | 1,796
Gross margin | 1,204 | 1,078
Segment Reconciling Items |  |
Segment Reporting Information [Line Items] |  |
Gross margin | 8,050 | 8,010
Intersegment Eliminations |  |
Segment Reporting Information [Line Items] |  |
Gross margin | $ (166) | $ (178)

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