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INVENTORIES
9 Months Ended
Sep. 30, 2023
Inventory Disclosure [Abstract]  
INVENTORIES INVENTORIES
 September 30,December 31,
(Dollars in millions)20232022
Finished goods$1,244 $1,347 
Work in process282 297 
Raw materials and supplies658 743 
Total inventories at FIFO or average cost2,184 2,387 
Less: LIFO reserve463 493 
Total inventories$1,721 $1,894 
Inventories valued on the last-in, first-out ("LIFO") method were approximately 50 percent of total inventories at both September 30, 2023 and December 31, 2022.