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INVENTORIES (Schedule of Inventories) (Details) - USD ($)
$ in Millions
Jun. 30, 2015
Dec. 31, 2014
Inventory Disclosure [Abstract]    
Finished goods $ 206 $ 205
Work in process 30 30
Raw materials 46 45
Supplies 86 98
Total inventories 368 378
Inventory, LIFO Reserve $ 103 $ 125