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Inventories, net
3 Months Ended
Mar. 31, 2017
Inventory Disclosure [Abstract]  
Inventories, net
2. Inventories, net

Inventories consist of (in millions):

 

     March 31,
2017
     December 31,
2016
 

Raw materials and supplies

   $ 903      $ 961  

Work in process

     528        561  

Finished goods and purchased products

     1,823        1,803  
  

 

 

    

 

 

 

Total

   $ 3,254      $ 3,325