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INVENTORIES (Details) - USD ($)
$ in Millions
Sep. 30, 2015
Dec. 31, 2014
At FIFO or average cost (approximates current cost) [Abstract]    
Finished goods $ 1,116 $ 1,130
Work in process 214 288
Raw materials and supplies 510 553
Total inventories 1,840 1,971
LIFO Reserve (356) (462)
Total inventories $ 1,484 $ 1,509
Inventories valued on the LIFO method 55.00% 55.00%