Quarterly report pursuant to Section 13 or 15(d)

DISCONTINUED OPERATIONS AND BUSINESS DISPOSITIONS - VENATOR (Details)

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DISCONTINUED OPERATIONS AND BUSINESS DISPOSITIONS - VENATOR (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended 9 Months Ended 10 Months Ended
Dec. 03, 2018
Feb. 28, 2019
Sep. 30, 2019
Mar. 31, 2019
Sep. 30, 2019
Sep. 30, 2019
Jan. 03, 2018
BUSINESS DISPOSITIONS              
Aggregate proceeds from sale of investment   $ 16     $ 16    
Unrealized losses on fair value adjustments to Venator investment         $ 91    
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%   49.00%   49.00% 49.00%  
Unrealized losses on fair value adjustments to Venator investment     $ 148   $ 91    
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