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Warranty, Guarantees And Contingencies (Tables)
 3 Months Ended
Jan. 27, 2019
Commitments and Contingencies Disclosure [Abstract]  
Changes in the warranty reserves
Changes in the warranty reserves are presented below:
 
 
Three Months Ended
 
January 27,
2019
 
January 28,
2018
 
 
 
 
 
(In millions)
Beginning balance
$
208

 
$
206

Warranties issued
39

 
45

Change in reserves related to preexisting warranty
1

 
2

Consumption of reserves
(48
)
 
(43
)
Ending balance
$
200

 
$
210