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Inventories (Tables)
 6 Months Ended
Jun. 30, 2014
Inventories [Abstract]  
Inventories
Inventories consisted of the following (in millions):
 
 
 
June 30,
2014
  
December 31,
2013
 
 
 
  
 
Raw materials
 
$
375
  
$
238
 
Work-in-process
  
1,015
   
894
 
Finished goods, including parts and subassemblies
  
2,067
   
2,208
 
Other
  
25
   
22
 
 
  
3,482
   
3,362
 
Excess of current standard costs over LIFO costs
  
(91
)
  
(120
)
Allowances
  
(123
)
  
(109
)
Total inventories
 
$
3,268
  
$
3,133