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INVENTORIES (Details) - USD ($)
$ in Millions
Sep. 30, 2019
Dec. 31, 2018
Inventory, Net [Abstract]    
Inventory, Finished Goods, Net of Reserves $ 306 $ 356
Inventory, Work in Process, Net of Reserves 1,124 1,152
Inventory, Raw Materials and Supplies, Net of Reserves 127 116
Total inventories 1,557 1,624
Inventories 1,192 1,195
Inventories - other assets $ 365 $ 429