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Warranty, Guarantees And Contingencies (Tables)
 9 Months Ended
Jul. 31, 2016
Commitments and Contingencies Disclosure [Abstract]  
Changes in the warranty reserves
Changes in the warranty reserves are presented below:
 
 
Three Months Ended
 
Nine Months Ended
 
July 31,
2016
 
July 26,
2015
 
July 31,
2016
 
July 26,
2015
 
 
 
 
 
 
 
 
 
(In millions)
Beginning balance
$
121

 
$
123

 
$
126

 
$
113

Warranties issued
35

 
29

 
91

 
98

Change in reserves related to preexisting warranty
7

 
(2
)
 
(9
)
 
(4
)
Consumption of reserves
(24
)
 
(25
)
 
(69
)
 
(82
)
Ending balance
$
139

 
$
125

 
$
139

 
$
125