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RELATED PARTY TRANSACTIONS - Additional Information (Details) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Related Party Transactions [Abstract]      
Undistributed earnings $ 70,000,000    
Carrying amount of equity method investments [1] 732,000,000 $ 734,000,000  
Amount by which the fair value of equity method investments exceeds company's share of the book value of the investee's net assets 419,000,000 441  
JWM Family Enterprise, L.P.      
Related Party Transaction [Line Items]      
Management fees $ 13,000,000 $ 13,000,000 $ 13,000,000
[1] See Footnote 18. Related Party Transactions for disclosure of related party amounts.