Annual report pursuant to Section 13 and 15(d)

INCOME TAXES - Schedule of Deferred Tax Assets and Liabilities (Details)

v3.20.4
INCOME TAXES - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Components of Deferred Tax Assets [Abstract]        
Deferred Tax Assets, Operating Loss Carryforwards $ 1,236 $ 795    
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Pensions 228 114    
Deferred Tax Assets, Property, Plant and Equipment 0 1    
Deferred Tax Assets, State Taxes 132 71    
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Other 190 70    
Deferred Tax Assets, Gross 1,786 1,051    
Deferred Tax Assets, Valuation Allowance (836) (441) $ (1,287) $ (1,983)
Deferred Tax Assets, Net of Valuation Allowance 950 610    
Components of Deferred Tax Liabilities [Abstract]        
Deferred Tax Liabilities Investment In Ventures (144) (137)    
Deferred Tax Liabilities, Property, Plant and Equipment 246 0    
Deferred Tax Liabilities Other Assets (68) (14)    
Deferred Tax Liabilities, Net (458) (151)    
Deferred Tax Assets, Net $ 492 $ 459