INVESTMENTS (OFFSETTING 1) (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Offsetting Assets [Line Items]
Net Amounts Presented in the Balance Sheets	$ 79
Reverse repurchase agreements, net amount presented on the balance sheet	79	$ 0
Repurchase agreements, net amount presented on the balance sheet	1,890	950
Collateral (Received)/Held, Cash		0
Accrued Interest Derivatives	141	120
Asset Derivatives	12,055	12,757
Initial Margin
Offsetting Assets [Line Items]
Asset Derivatives	(2)
Investment Management
Offsetting Assets [Line Items]
Collateral (Received)/Held, Cash	(2)	(1)
Collateral (Received)/Held, Cash	(12)	(10)
Securities Borrowed	75	158
Securities Loaned	10	34
Asset Derivatives	13	8
Counterparty A
Offsetting Assets [Line Items]
Net Amounts Presented in the Balance Sheets	52	62
Colleteral (Received)/Held, Financial Instruments	0	0
Collateral (Received)/Held, Cash	(52)	(62)
Net Amounts	0	0
Counterparty B
Offsetting Assets [Line Items]
Net Amounts Presented in the Balance Sheets	9	102
Colleteral (Received)/Held, Financial Instruments	0	0
Collateral (Received)/Held, Cash	(7)	(95)
Net Amounts	2	7
Counterparty C
Offsetting Assets [Line Items]
Net Amounts Presented in the Balance Sheets	61	111
Colleteral (Received)/Held, Financial Instruments	0	0
Collateral (Received)/Held, Cash	(58)	(110)
Net Amounts	3	1
Repurchase agreements, net amount presented on the balance sheet	1,033	500
Collateral (Received)/Held, Financial Instruments	(1,016)	(500)
Collateral (Received)/Held, Cash	(17)	0
Net amounts	0	0
Counterparty D
Offsetting Assets [Line Items]
Net Amounts Presented in the Balance Sheets	222	228
Colleteral (Received)/Held, Financial Instruments	0	0
Collateral (Received)/Held, Cash	(218)	(224)
Net Amounts	4	4
Repurchase agreements, net amount presented on the balance sheet	234	450
Collateral (Received)/Held, Financial Instruments	(234)	(450)
Collateral (Received)/Held, Cash	0	0
Net amounts	0	0
Counterparty E
Offsetting Assets [Line Items]
Net Amounts Presented in the Balance Sheets	53	60
Colleteral (Received)/Held, Financial Instruments	0	0
Collateral (Received)/Held, Cash	(53)	(59)
Net Amounts	0	1
Counterparty F
Offsetting Assets [Line Items]
Net Amounts Presented in the Balance Sheets	(2)	63
Colleteral (Received)/Held, Financial Instruments	0	0
Collateral (Received)/Held, Cash	2	(60)
Net Amounts	0	3
Counterparty G
Offsetting Assets [Line Items]
Net Amounts Presented in the Balance Sheets	129	145
Colleteral (Received)/Held, Financial Instruments	0	(145)
Collateral (Received)/Held, Cash	(129)	0
Net Amounts	0	0
Counterparty H
Offsetting Assets [Line Items]
Net Amounts Presented in the Balance Sheets	16	31
Colleteral (Received)/Held, Financial Instruments	(11)	(31)
Collateral (Received)/Held, Cash	(5)	0
Net Amounts	0	0
Counterparty I
Offsetting Assets [Line Items]
Net Amounts Presented in the Balance Sheets	44	136
Colleteral (Received)/Held, Financial Instruments	0	0
Collateral (Received)/Held, Cash	(39)	(134)
Net Amounts	5	2
Counterparty J
Offsetting Assets [Line Items]
Net Amounts Presented in the Balance Sheets	19	28
Colleteral (Received)/Held, Financial Instruments	0	0
Collateral (Received)/Held, Cash	(13)	(22)
Net Amounts	6	6
Counterparty K
Offsetting Assets [Line Items]
Net Amounts Presented in the Balance Sheets	17	44
Colleteral (Received)/Held, Financial Instruments	0	0
Collateral (Received)/Held, Cash	(17)	(44)
Net Amounts	0	0
Counterparty L
Offsetting Assets [Line Items]
Net Amounts Presented in the Balance Sheets	7	113
Colleteral (Received)/Held, Financial Instruments	0	(113)
Collateral (Received)/Held, Cash	(7)	0
Net Amounts	0	0
Counterparty M
Offsetting Assets [Line Items]
Net Amounts Presented in the Balance Sheets	11	76
Colleteral (Received)/Held, Financial Instruments	0	0
Collateral (Received)/Held, Cash	(10)	(68)
Net Amounts	1	8
Reverse repurchase agreements, net amount presented on the balance sheet	28
Reverse repurchase agreements, collateral securities received	(28)
Reverse repuchase agreements, collateral cash received	0
Reverse repurchase agreements, net amounts	0
Repurchase agreements, net amount presented on the balance sheet	623
Collateral (Received)/Held, Financial Instruments	(611)
Collateral (Received)/Held, Cash	(12)
Net amounts	0
Counterparty N
Offsetting Assets [Line Items]
Net Amounts Presented in the Balance Sheets	20	40
Colleteral (Received)/Held, Financial Instruments	0	0
Collateral (Received)/Held, Cash	0	0
Net Amounts	20	40
Counterparty Q
Offsetting Assets [Line Items]
Net Amounts Presented in the Balance Sheets	0	4
Colleteral (Received)/Held, Financial Instruments	0	0
Collateral (Received)/Held, Cash	0	(4)
Net Amounts	0	0
Counterparty T
Offsetting Assets [Line Items]
Net Amounts Presented in the Balance Sheets	(3)	3
Colleteral (Received)/Held, Financial Instruments	0	0
Collateral (Received)/Held, Cash	3	(3)
Net Amounts	0	0
Counterparty U
Offsetting Assets [Line Items]
Net Amounts Presented in the Balance Sheets	0
Colleteral (Received)/Held, Financial Instruments	0
Collateral (Received)/Held, Cash	1
Net Amounts	1
Counterparty V
Offsetting Assets [Line Items]
Net Amounts Presented in the Balance Sheets	3
Colleteral (Received)/Held, Financial Instruments	0
Collateral (Received)/Held, Cash	(3)
Net Amounts	0
Reverse repurchase agreements, net amount presented on the balance sheet	51
Reverse repurchase agreements, collateral securities received	(51)
Reverse repuchase agreements, collateral cash received	0
Reverse repurchase agreements, net amounts	0
Derivative investments
Offsetting Assets [Line Items]
Net Amounts Presented in the Balance Sheets	658	1,246
Colleteral (Received)/Held, Financial Instruments	(11)	(289)
Collateral (Received)/Held, Cash	(605)	(885)
Net Amounts	42	72
Other Financial Instruments
Offsetting Assets [Line Items]
Net Amounts Presented in the Balance Sheets	1,271	852
Colleteral (Received)/Held, Financial Instruments	0	0
Collateral (Received)/Held, Cash	0	0
Net Amounts	1,271	852
Other Invested Assets
Offsetting Assets [Line Items]
Net Amounts Presented in the Balance Sheets	1,929	2,098
Colleteral (Received)/Held, Financial Instruments	(11)	(289)
Collateral (Received)/Held, Cash	(605)	(885)
Net Amounts	1,313	924
Securities purchased under agreement to resell
Offsetting Assets [Line Items]
Reverse repurchase agreements, net amount presented on the balance sheet	79
Reverse repurchase agreements, collateral securities received	(79)
Reverse repuchase agreements, collateral cash received	0
Reverse repurchase agreements, net amounts	0
Repurchase agreements, net amount presented on the balance sheet	1,890	950
Collateral (Received)/Held, Financial Instruments	(1,861)	(950)
Collateral (Received)/Held, Cash	(29)
Net amounts	$ 0	$ 0