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Supplemental Financial Information (Tables)
6 Months Ended
Jun. 30, 2014
Supplemental Financial Information [Abstract]  
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
The components of accounts receivable are summarized as follows:
In millions
June 30, 2014
 
December 31, 2013
Accounts receivable
 

 
Trade
$1,437

$1,318
Other
45
 
39
Accounts receivable, gross
1,482
 
1,357
Less: allowance for doubtful accounts
(18)
 
(18)
Total accounts receivable, net
$1,464
 
$1,339
Schedule of Inventory, Current [Table Text Block]
The components of inventory are summarized as follows:
In millions
June 30, 2014
 
December 31, 2013
Inventories
 
 
 
Work in process and raw materials
$155
 
$135
Finished goods
209
 
202
Service parts
452
 
453
Total inventories
$816
 
$790
Schedule of Other Assets [Table Text Block]
The components of other current assets are summarized as follows:
In millions
June 30, 2014
 
December 31, 2013
Other current assets
 
 
 
Current deferred tax assets
$272
 
$262
Other
355
 
306
Total other current assets
$627
 
$568