Goodwill, Purchased Technology and Other Intangible Assets (Details 1) (USD $) In Millions, unless otherwise specified	Jul. 27, 2014	Oct. 27, 2013
Summary of Purchased Technology and Intangible Assets [Line Items]
Carrying amount	$ 831	$ 961
Intangible assets - indefinite-lived	148	142
Total	979	1,103
Purchased technology [Member]
Summary of Purchased Technology and Intangible Assets [Line Items]
Carrying amount	639	748
Intangible assets [Member]
Summary of Purchased Technology and Intangible Assets [Line Items]
Carrying amount	$ 192	$ 213