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Inventories, net
9 Months Ended
Sep. 30, 2015
Inventory Disclosure [Abstract]  
Inventories, net
3. Inventories, net

Inventories consist of (in millions):

 

     September 30,
2015
     December 31,
2014
 

Raw materials and supplies

   $ 1,143       $ 1,255   

Work in process

     892         1,027   

Finished goods and purchased products

     3,137         2,999   
  

 

 

    

 

 

 

Total

   $ 5,172       $ 5,281