XML 29 R19.htm IDEA: XBRL DOCUMENT v3.7.0.1
Supplemental Financial Information (Tables)
 3 Months Ended
Mar. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Supplemental Financial Information
 
As of
In millions
March 31,
2017
 
December 31,
2016
Inventories
 
 
 
Finished goods
$
26

 
$
20

Service parts
14

 
14

Total inventories
$
40

 
$
34

 
 
 
 
Deferred revenue
 
 
 
Deferred revenue, current
$
514

 
$
369

Long-term deferred revenue
14

 
14

Total deferred revenue
$
528

 
$
383