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Cash, Cash Equivalents and Investments (Details Textuals) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Oct. 28, 2012
Oct. 30, 2011
Oct. 31, 2010
Cash, Cash Equivalents and Investments (Textuals) [Abstract]      
Impairments of investments $ 17 $ 3 $ 13
Equity investments in privately-held companies [Member]
     
Cash, Cash Equivalents and Investments (Textuals) [Abstract]      
Impairments of investments $ 17 $ 3 $ 13