Annual report pursuant to Section 13 and 15(d)

INCOME TAXES - Narrative (Details)

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INCOME TAXES - Narrative (Details) - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Operating Loss Carryforwards [Line Items]    
Net deferred tax asset, operating loss carryforwards $ 99  
Net deferred tax asset, operating loss carryforwards, domestic 44  
Net deferred tax asset, operating loss carryforwards, state and local 40  
Net deferred tax asset, alternative minimum tax carryforward 1  
Federal capital loss carryforward valuation allowance 6 $ 6
Bad debt reserves with no federal income tax liability 12  
Unrecognized deferred tax liability from cumulative bad debt reduction 3  
Operating Loss Carryforward State    
Operating Loss Carryforwards [Line Items]    
Federal capital loss carryforward valuation allowance $ 6