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Restructuring (Tables)
 6 Months Ended
Apr. 30, 2017
Restructuring and Related Activities [Abstract]  
Summary of Restructuring Plans
Restructuring activities related to the Company's employees and infrastructure, summarized by plan, are presented in the table below:
 
Fiscal 2015 Plan
 
Fiscal 2012 Plan
 
 
 
Employee
Severance
 
Infrastructure
and other
 
Employee
Severance
and EER
 
Infrastructure
and other
 
Total
 
In millions
Liability as of October 31, 2016
$
277

 
$
22

 
$
39

 
$
15

 
$
353

Charges
198

 
28

 
8

 
—

 
234

Cash payments
(221
)
 
(14
)
 
(18
)
 
(4
)
 
(257
)
Non-cash items
(23
)
 
(19
)
 
2

 
(8
)
 
(48
)
Liability as of April 30, 2017
$
231

 
$
17

 
$
31

 
$
3

 
$
282

Total costs incurred to date, as of April 30, 2017
$
642

 
$
86

 
$
1,237

 
$
222

 
$
2,187

Total costs expected to be incurred, as of April 30, 2017
$
850

 
$
265

 
$
1,237

 
$
222

 
$
2,574