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Inventories, net (Details) - USD ($)
$ in Millions
Sep. 30, 2019
Dec. 31, 2018
Inventory Disclosure [Abstract]    
Raw material and supplies $ 515 $ 485
Work in progress 114 114
Finished goods 195 199
FIFO inventories 824 798
LIFO reserve (14) (17)
Inventories, net $ 810 $ 781