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INVENTORIES (Tables)
 12 Months Ended
Dec. 31, 2016
INVENTORIES  
Schedule of inventories

 

Balance at December 31, (in millions)

 

2016

 

2015

Raw materials

 

$
65

 

 

$
73

 

Materials and supplies

 
446

 

 
568

 

Finished goods

 
395

 

 
395

 

 

 
906

 

 
1,036

 

Revaluation to LIFO

 
(40

)

 
(50

)

Total

 

$
866

 

 

$
986