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INVENTORIES (Tables)
 9 Months Ended
Sep. 30, 2016
Inventory Disclosure [Abstract]  
Schedule of inventories
 
September 30,
 
December 31,
(Dollars in millions)
2016
 
2015
At FIFO or average cost (approximates current cost)
 
 
 
Finished goods
$
1,057

 
$
1,063

Work in process
197

 
212

Raw materials and supplies
476

 
500

Total inventories
1,730

 
1,775

Less: LIFO reserve
259

 
296

Total inventories
$
1,471

 
$
1,479