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Warranty, Guarantees and Contingencies (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Jul. 28, 2013
Jul. 29, 2012
Jul. 28, 2013
Jul. 29, 2012
Changes in the warranty reserves        
Beginning balance $ 104 $ 152 $ 119 $ 168
Provisions for warranty 27 25 76 87
Consumption of reserves (31) (40) (95) (118)
Ending balance $ 100 $ 137 $ 100 $ 137