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Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Deferred tax assets:    
Environmental and other liabilities $ 99 $ 80
Accrued litigation 37 28
Stock-based compensation and accrued employee benefits 29 28
Other assets and other accrued liabilities 6 8
Tax attribute carryforwards 96 29
Operating lease liability 75 0
Foreign tax credit carryforwards 18 18
Total deferred tax assets 360 191
Less: Valuation allowance (10) (2)
Total deferred tax assets, net 350 189
Deferred tax liabilities:    
Pension and other liabilities (7) (35)
Property, plant, and equipment (320) (313)
Operating lease asset (71) 0
Inventories and other assets (30) (12)
Total deferred tax liabilities (428) (360)
Deferred tax liability, net $ (78) $ (171)