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INVENTORIES
12 Months Ended
Dec. 31, 2016
Inventory Disclosure [Abstract]  
INVENTORIES
INVENTORIES
 
December 31,
(Dollars in millions)
2016
 
2015
 
 
 
 
Finished goods
$
997

 
$
1,063

Work in process
198

 
212

Raw materials and supplies
473

 
500

Total inventories at FIFO or average cost
1,668

 
1,775

Less: LIFO reserve
264

 
296

Total inventories
$
1,404

 
$
1,479



Inventories valued on the LIFO method were approximately 60 percent of total inventories at both December 31, 2016 and 2015.