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Goodwill and Other Intangible Assets, Net - Schedule of Other Intangible Assets (Details) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]    
Cost $ 68 $ 68
Accumulated Amortization (54) (47)
Net 14 21
Customer Lists [Member]    
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]    
Cost 9 9
Accumulated Amortization (9) (8)
Net 0 1
Customer Relationships [Member]    
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]    
Cost 22 22
Accumulated Amortization (12) (8)
Net 10 14
Patents [Member]    
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]    
Cost 19 19
Accumulated Amortization (19) (19)
Net 0 0
Purchased Trademarks [Member]    
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]    
Cost 5 5
Accumulated Amortization (3) (3)
Net 2 2
Purchased and Licensed Technology [Member]    
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]    
Cost 3 3
Accumulated Amortization (3) (3)
Net 0 0
Other [Member]    
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]    
Cost [1] 10 10
Accumulated Amortization [1] (8) (6)
Net [1] $ 2 $ 4
[1] Represents non-cash favorable supply contracts acquired in connection with the sale of the Sulfur business and recognized during the third quarter of 2016 based on the present value of the difference between their contractual cash flows and estimated cash flows had the contracts been executed at a determinable market price. These contract intangibles will be amortized to cost of goods sold over the remaining life of the supply contracts through 2021.