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Contingencies Schedule of FCPA Expenses (Tables)
 9 Months Ended
Oct. 31, 2017
Commitments and Contingencies Disclosure [Abstract]  
Foreign corrupt practices act expenses
For the three and nine months ended October 31, 2017 and 2016, the Company incurred the following third-party expenses in connection with the FCPA investigation and related matters:
 
 
Three Months Ended October 31,
 
Nine Months Ended October 31,
(Amounts in millions)
 
2017
 
2016
 
2017
 
2016
Ongoing inquiries and investigations
 
$
2

 
$
24

 
$
22

 
$
68

Global compliance program and organizational enhancements
 
3

 
5

 
11

 
14

Total
 
$
5

 
$
29

 
$
33

 
$
82