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INVENTORIES (Schedule of Inventories) (Details) - USD ($)
$ in Millions
Mar. 31, 2017
Dec. 31, 2016
Inventory Disclosure [Abstract]    
Finished goods $ 4,798 $ 4,230
Work in process 1,828 1,510
Raw materials 999 853
Supplies 833 823
Total FIFO inventories 8,458 7,416
Adjustment of inventories to a LIFO basis (248) (53)
Total inventories $ 8,210 $ 7,363