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COMMITMENTS AND CONTINGENCIES (DETAILS 4) - USD ($)
$ in Millions
Dec. 31, 2016
Dec. 31, 2015
Unrecorded Unconditional Purchase Obligation [Line Items]    
Unfunded commitments related to other investments $ 401 $ 379
Minimum reinsurance premiums [Member]    
Unrecorded Unconditional Purchase Obligation [Line Items]    
Outstanding purchase commitment, due in 2017 34  
CMBS [Member]    
Unrecorded Unconditional Purchase Obligation [Line Items]    
Purchase commitment $ 2