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Accrued Expenses - Summary of Accrued Expenses (Details) - USD ($)
$ in Millions
Mar. 31, 2019
Dec. 31, 2018
Loss Contingencies [Line Items]    
Operating related accruals $ 63 $ 55
Employee related accruals 71 66
Customer pricing accruals 44 39
Product related liabilities 14 16
Other accruals 22 18
Total Accrued Expenses 214 193
Affiliated Entity    
Loss Contingencies [Line Items]    
Product related liabilities $ 11 $ 14