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Inventories, net (Tables)
6 Months Ended
Jun. 30, 2018
Inventory Disclosure [Abstract]  
Inventories

Inventories consist of (in millions):

 

     June 30,
2018
     December 31,
2017
 

Raw materials and supplies

   $ 655      $ 656  

Work in process

     572        513  

Finished goods and purchased products

     1,931        1,834  
  

 

 

    

 

 

 

Total

   $ 3,158      $ 3,003