XML 40 R26.htm IDEA: XBRL DOCUMENT v3.10.0.1
INVENTORIES (Tables)
9 Months Ended
Sep. 30, 2018
Inventory Disclosure [Abstract]  
Schedule of inventories
 
September 30,
 
December 31,
(Dollars in millions)
2018
 
2017
Finished goods
$
1,118

 
$
1,114

Work in process
271

 
213

Raw materials and supplies
554

 
470

Total inventories at FIFO or average cost
1,943

 
1,797

Less: LIFO reserve
318

 
288

Total inventories
$
1,625

 
$
1,509