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INVENTORIES (Details) - USD ($)
$ in Millions
Jun. 30, 2018
Dec. 31, 2017
Inventory Combining Work In Process And Raw Materials Alternative Gross Abstract    
Raw materials $ 1,238 $ 1,193
Work in process 801 790
Finished products 2,790 2,669
Inventory, Gross 4,829 4,652
Reduction to LIFO cost basis (37) (39)
Inventories $ 4,792 $ 4,613