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SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS
 12 Months Ended
Oct. 31, 2015
Valuation and Qualifying Accounts [Abstract]  
VALUATION AND QUALIFYING ACCOUNTS
SCHEDULE II

VALUATION AND QUALIFYING ACCOUNTS

Description
 
Balance at
Beginning
of Period
 
Additions Charged to
Expenses or
Other Accounts*
 
Deductions Credited to Expenses or Other Accounts**
 
Balance at
End of
Period
 
 
(in millions)
2015
 
 
 
 
 
 
 
 
Tax valuation allowance
 
$
39

 
$
43

 
$
(36
)
 
$
46

2014
 
 
 
 
 
 
 
 
Tax valuation allowance
 
$
41

 
$
4

 
$
(6
)
 
$
39

2013
 
 
 
 
 
 
 
 
Tax valuation allowance
 
$
41

 
$
—

 
$
—

 
$
41


* Additions include current year additions charged to expenses and current year build due to increases in net deferred tax assets, return to provision true-ups, other adjustments and Other Comprehensive Income ("OCI") impact to deferred taxes.

** Deductions include current year releases credited to expenses and current year reductions due to decreases in net deferred tax assets, return to provision true-ups, other adjustments and OCI impact to deferred taxes.