Goodwill, Purchased Technology and Other Intangible Assets (Details 5) (USD $) In Millions, unless otherwise specified	Apr. 28, 2013	Oct. 28, 2012
Future estimated amortization expense
Future estimated amortization expense, 2013	$ 92
Future estimated amortization expense, 2014	180
Future estimated amortization expense, 2015	175
Future estimated amortization expense, 2016	168
Future estimated amortization expense, 2017	166
Future estimated amortization expense, Thereafter	271
Carrying amount	$ 1,052	$ 1,213