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Guarantees, Indemnifications and Warranties (Tables)
 12 Months Ended
Oct. 31, 2016
Guarantees [Abstract]  
Changes in Aggregate Product Warranty Liabilities
HP’s aggregate product warranty liabilities and changes were as follows:
 
As of October 31
 
2016
 
2015
 
In millions
Balance at beginning of year
$
1,184

 
$
1,385

Accruals for warranties issued
966

 
1,134

Adjustments related to pre-existing warranties (including changes in estimates)
(23
)
 
(16
)
Settlements made (in cash or in kind)
(1,147
)
 
(1,319
)
Balance at end of year
$
980

 
$
1,184