Annual report pursuant to Section 13 and 15(d)

FAIR VALUE - ASSETS AND LIABILITIES MEASURED AT FAIR VALUE ON A RECURRING BASIS (Details)

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FAIR VALUE - ASSETS AND LIABILITIES MEASURED AT FAIR VALUE ON A RECURRING BASIS (Details) - Recurring basis - USD ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Assets:    
Non-qualified employee benefit plan investments $ 23 $ 33
Forward swap contract related to the sale of investment in Venator 14  
Total assets 37  
Quoted prices in active markets for identical assets (Level 1)    
Assets:    
Non-qualified employee benefit plan investments 23 $ 33
Total assets 23  
Significant other observable inputs (Level 2)    
Assets:    
Forward swap contract related to the sale of investment in Venator 14  
Total assets $ 14