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Guarantees, Indemnifications and Warranties (Tables)
 12 Months Ended
Oct. 31, 2016
Guarantees [Abstract]  
Changes in aggregate product warranty liabilities and changes
The Company's aggregate product warranty liabilities and changes therein were as follows:
 
Fiscal years ended
October 31,
 
2016
 
2015
 
In millions
Balance at beginning of year
$
523

 
$
571

Accruals for warranties issued
376

 
373

Adjustments related to pre-existing warranties (including changes in estimates)
1

 
(16
)
Divested as part of the H3C transaction
(23
)
 
—

Settlements made (in cash or in kind)
(380
)
 
(405
)
Balance at end of year
$
497

 
$
523