Annual report pursuant to Section 13 and 15(d)

DISCONTINUED OPERATIONS AND BUSINESS DISPOSITIONS - VENATOR (Details)

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DISCONTINUED OPERATIONS AND BUSINESS DISPOSITIONS - VENATOR (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Dec. 03, 2018
Mar. 31, 2019
Dec. 31, 2019
Dec. 31, 2018
Jan. 03, 2018
BUSINESS DISPOSITIONS          
Aggregate proceeds from sale of investment     $ 16 $ 3  
Unrealized losses on fair value adjustments to Venator investment     19 $ 62  
Venator Materials PLC          
BUSINESS DISPOSITIONS          
Aggregate number shares sold 4,334,389        
Percentage of equity ownership interest sold 4.00%        
Aggregate proceeds from sale of investment   $ 16 $ 19    
Ownership interest (as a percent)     49.00%    
Unrealized losses on fair value adjustments to Venator investment     $ 19    
Possible period of time in which investment shares are not able to be sold     12 months    
Venator Materials PLC | Forward Swap          
BUSINESS DISPOSITIONS          
Realized gain   $ 1      
Venator Materials PLC          
BUSINESS DISPOSITIONS          
Ownership interest (as a percent)         53.00%
Over allotment | Venator Materials PLC          
BUSINESS DISPOSITIONS          
Underwriters purchased an additional shares         1,948,955