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Inventories, net (Tables)
12 Months Ended
Dec. 31, 2015
Inventory Disclosure [Abstract]  
Inventories

Inventories consist of (in millions):

 

     December 31,  
     2015      2014  

Raw materials and supplies

   $ 1,069       $ 1,255   

Work in process

     632         1,027   

Finished goods and purchased products

     2,977         2,999   
  

 

 

    

 

 

 

Total

   $ 4,678       $ 5,281