RELATED PARTY TRANSACTIONS - SUMMARY OF ASSETS RECEIVED AND REMOVED (Details) $ in Millions	Apr. 12, 2018 USD ($)
Assets Received
Related Party Transaction [Line Items]
Transaction amount	$ 8,888
Assets Removed
Related Party Transaction [Line Items]
Transaction amount	11,889
Fixed income securities | Assets Received
Related Party Transaction [Line Items]
Transaction amount	7,442
Money Market funds | Assets Received
Related Party Transaction [Line Items]
Transaction amount	2
Accrued interest | Assets Received
Related Party Transaction [Line Items]
Transaction amount	43
Derivatives | Assets Received
Related Party Transaction [Line Items]
Transaction amount	303
Cash | Assets Received
Related Party Transaction [Line Items]
Transaction amount	1,098
Deferred cost of reinsurance asset | Assets Removed
Related Party Transaction [Line Items]
Transaction amount	1,839
GMDB ceded reserves | Assets Removed
Related Party Transaction [Line Items]
Transaction amount	2,317
GMIB reinsurance contract asset | Assets Removed
Related Party Transaction [Line Items]
Transaction amount	7,463
Payable to AXA RE Arizona | Assets Removed
Related Party Transaction [Line Items]
Transaction amount	$ 270