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Warranty, Guarantees and Contingencies (Details 1) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Oct. 28, 2012
Oct. 30, 2011
Changes in the warranty reserves    
Beginning balance $ 168 $ 155
Provisions for warranty 107 170
Consumption of reserves (156) (157)
Ending balance $ 119 $ 168