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Income Taxes - Income Tax Provision Reconciliation (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income Tax Disclosure [Abstract]      
Goodwill and intangible assets $ 1 $ 34 $ 2
Property, plant and equipment 12 12 (15)
Pension and other retiree benefits 10 (13) (7)
Stock-based compensation (7) (1) 9
Right-of-use assets/lease liabilities (1) 0 0
Tax credits and tax loss carryforwards (1) 3 (4)
Deferred withholding tax 111 (21) (100)
Other, net 18 (33) 62
Total deferred tax benefit (provision) $ 143 $ (19) $ (53)