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Restructuring Plan (Tables)
 9 Months Ended
Sep. 30, 2017
Restructuring and Related Activities [Abstract]  
Restructuring and Related Costs [Table Text Block]
Charges related to the restructuring plan for the three and nine months ended September 30 were:
 
Three months ended September 30
 
Nine months ended September 30
In millions
2017
 
2016
 
2017
 
2016
Severance and other employee-related costs
 
 
 
 
 
 
 
     ASC 712 charges included in restructuring-related charges
$
—

 
$
2

 
$
—

 
$
4

     ASC 420 charges included in restructuring-related charges
—

 
1

 
—

 
(1
)
Inventory-related charges
 
 
 
 
 
 
 
     Charges included in cost of services
—

 
—

 
—

 
4

Asset-related charges
 
 
 
 
 
 
 
     External and internal use software impairment charges
     included in restructuring-related charges
—

 
—

 
—

 
2

Other exit costs
 
 
 
 
 
 
 
     Other exit costs included in restructuring-related charges
—

 
4

 
—

 
8

Total restructuring charges
$
—

 
$
7

 
$
—

 
$
17

The following table summarizes the total liabilities relating to the restructuring plan, which are included on the Condensed Consolidated Balance Sheets in other current liabilities.
In millions
2017
 
2016
Employee Severance and Other Exit Costs
 
 
 
Beginning balance as of January 1
$
1

 
$
20

Cost recognized during the period
—

 
13

Change in estimated payments
—

 
(2
)
Utilization
(1
)
 
(28
)
Ending balance as of September 30
$
—

 
$
3