REINSURANCE AND FINANCING TRANSACTIONS (Details) - USD ($)		9 Months Ended
	Jan. 15, 2016	Sep. 30, 2016
Debt Instrument [Line Items]
Increase in Total Assets		$ 2,800,000,000
Increase in Total Liabilities		2,800,000,000
Increase in assets resulting from reinsurance transaction		600,000,000
Increase in value of business acquired		280,000,000
Increase in assets associated with financing transaction		2,200,000,000
Increase in liabilities associated with financing activities		$ 2,200,000,000
Golden Gate
Debt Instrument [Line Items]
Extraordinary dividend	$ 300,000,000
Financing Agreement With Golden Gate And Syndicate Of Risk Takers
Debt Instrument [Line Items]
Term of financing agreement	18 years
Financing capacity under the agreement	$ 2,188,000,000.000
Steel City Notes | Surplus Notes | Golden Gate
Debt Instrument [Line Items]
Amount of debt issued	2,188,000,000.000
Golden Gate Surplus Notes | Surplus Notes | Steel City
Debt Instrument [Line Items]
Amount of debt issued	2,188,000,000.000
Non-recourse Funding Obligations Series | Golden Gate
Debt Instrument [Line Items]
Outstanding non-recourse funding obligations	$ 800,000,000