Goodwill, Purchased Technology and Other Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	Oct. 28, 2012	Oct. 30, 2011
Summary of Purchased Technology and Intangible Assets [Line Items]
Carrying amount	$ 1,213	$ 211
Intangible assets - indefinite-lived	142	0
Total	1,355	211
Purchased Technology [Member]
Summary of Purchased Technology and Intangible Assets [Line Items]
Carrying amount	945	127
Intangible Assets [Member]
Summary of Purchased Technology and Intangible Assets [Line Items]
Carrying amount	$ 268	$ 84