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Other Expense (Income), net (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Other Expense (Income), net    
Foreign currency exchange loss $ 3 $ 2
Intangible amortization expense 10 10
Royalty income (3) (3)
Other expense (income), net   (12)
Other Expense, net $ 10 $ (3)