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Inventories - Components of Inventories (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]    
Raw material $ 99 $ 108
Work in progress 8 15
Finished products 62 71
Inventories 169 194
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]    
Inventory reserve at beginning of year (23) (27)
Inventory reserve at end of year (25) (23)
Total inventories, net of reserve 144 172
Inventory    
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]    
Reversal of allowance 1 1
Addition to allowance (4) (3)
Write-off against allowance 1 5
Translation difference $ 0 $ 1