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Warranty, Guarantees and Contingencies (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Apr. 28, 2013
Apr. 29, 2012
Apr. 28, 2013
Apr. 29, 2012
Changes in the warranty reserves        
Beginning balance $ 109 $ 161 $ 119 $ 168
Provisions for warranty 26 33 49 62
Consumption of reserves (31) (42) (64) (78)
Ending balance $ 104 $ 152 $ 104 $ 152