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REINSURANCE (Details)
$ in Millions
12 Months Ended
Dec. 31, 2020
USD ($)
reinsurer
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Effects of Reinsurance [Line Items]      
Reinsurance recoverables $ 194 $ 267  
Premiums ceded 29 1,000 $ 976
Benefits ceded $ 7 881 $ 980
Number of reinsurers comprising other reinsurance recoverables balance | reinsurer 10    
Cash and securities in trusts held by certain reinsurers $ 3    
100% coinsurance agreements      
Effects of Reinsurance [Line Items]      
Percentage of coinsurance agreement 100.00%    
Reinsurance recoverables | Reinsurer concentration risk      
Effects of Reinsurance [Line Items]      
Reinsurance recoverables $ 193 $ 267  
Protective Life Insurance Company      
Effects of Reinsurance [Line Items]      
Reinsurance recoverables 171    
All others      
Effects of Reinsurance [Line Items]      
Reinsurance recoverables $ 22