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INVENTORIES (Schedule of Inventories) (Details) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2012
Dec. 31, 2011
Inventory Disclosure [Abstract]    
Finished goods $ 4,994 $ 4,327
Work in process 2,087 1,716
Raw materials 1,016 765
Supplies 785 769
Total inventories 8,882 7,577
Inventory, LIFO Reserve $ 1,148 $ 1,105