FAIR VALUE DISCLOSURES (LEVEL 3 UNOBSERVABLE INPUT RECONCILIATION) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Total Gains Losses Realized Unrealized Included In [Abstract]
Transfers into level 3			$ 19	$ 40
Transfers out of Level 3			(43)	(66)
Corporate | Level 3 Assets And Liabilities Still Held
Total Gains Losses Realized Unrealized Included In [Abstract]
Other comprehensive income (loss)	$ (2)	$ (5)	9	(1)
Corporate | Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Opening Balance	498	399	420	380
Total Gains Losses Realized Unrealized Included In [Abstract]
Net investment income (loss)		1	(1)	1
Investment Gains (Losses), Net	1	1	0	1
Subtotal	1	2	(1)	2
Other comprehensive income (loss)	(1)	(5)	8	(1)
Purchases	97	18	150	33
Sales	(58)	(32)	(72)	(35)
Transfers into level 3	3	1	17	40
Transfers out of Level 3	(45)	(10)	(27)	(46)
Closing Balance	495	373	495	373
State and Political Sub- divisions | Level 3 Assets And Liabilities Still Held
Total Gains Losses Realized Unrealized Included In [Abstract]
Other comprehensive income (loss)	1	(2)	1	33
State and Political Sub- divisions | Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Opening Balance	45	48	45	47
Total Gains Losses Realized Unrealized Included In [Abstract]
Subtotal	0	0
Other comprehensive income (loss)	1	(2)	1	(1)
Sales	(1)		(1)	0
Closing Balance	45	46	45	46
Foreign Govts | Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Opening Balance	0	2	1	0
Total Gains Losses Realized Unrealized Included In [Abstract]
Subtotal	0	0
Other comprehensive income (loss)			0	0
Transfers into level 3		0
Transfers out of Level 3	0	(2)	(1)	0
Closing Balance	0	0	0	0
Commercial Mortgage- backed | Level 3 Assets And Liabilities Still Held
Total Gains Losses Realized Unrealized Included In [Abstract]
Other comprehensive income (loss)	(4)	21	(16)	0
Commercial Mortgage- backed | Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Opening Balance	448	686	503	715
Total Gains Losses Realized Unrealized Included In [Abstract]
Net investment income (loss)		1	0	1
Investment Gains (Losses), Net	(18)	(18)	(24)	(20)
Subtotal	(18)	(17)	(24)	(19)
Other comprehensive income (loss)	1	21	(11)	34
Purchases	0	0	0
Sales	(27)	(48)	(60)	(83)
Transfers out of Level 3	(2)	(15)	(6)	(20)
Closing Balance	402	627	402	627
Residential Mortgage- backed | Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Opening Balance	0	2	0	2
Total Gains Losses Realized Unrealized Included In [Abstract]
Subtotal	0	0
Sales		(1)	0	(1)
Closing Balance	0	1	0	1
Asset- backed | Level 3 Assets And Liabilities Still Held
Total Gains Losses Realized Unrealized Included In [Abstract]
Other comprehensive income (loss)	2	0	2	(1)
Asset- backed | Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Opening Balance	37	51	40	53
Total Gains Losses Realized Unrealized Included In [Abstract]
Subtotal	0	0
Other comprehensive income (loss)	2	1	2	0
Sales	(4)	(4)	(7)	(5)
Transfers out of Level 3	(9)		(9)	0
Closing Balance	26	48	26	48
Total Debt Maturities Available For Sale | Level 3 Assets And Liabilities Still Held
Total Gains Losses Realized Unrealized Included In [Abstract]
Investment Gains (Losses), Net	6	9
Increase (Decrease) in the Fair Value of the Reinsurance Contract Asset	1,104	(1,450)
Policyholders’ benefits	65	(58)
Other comprehensive income (loss)	(3)	14	(4)	31
Total Debt Maturities Available For Sale | Level 3
Total Gains Losses Realized Unrealized Included In [Abstract]
Investment Gains (Losses), Net			13	17
Increase (Decrease) in the Fair Value of the Reinsurance Contract Asset			2,741	(760)
Policyholders’ benefits			146	19
Other comprehensive income (loss)			(4)	31
Redeemable Preferred Stock | Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Opening Balance	0	0	0	0
Total Gains Losses Realized Unrealized Included In [Abstract]
Subtotal	0	0
Other comprehensive income (loss)				0
Purchases			0	0
Closing Balance	0	0	0	0
Other Equity Investments | Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Opening Balance	25	59	17	61
Total Gains Losses Realized Unrealized Included In [Abstract]
Net investment income (loss)			0	0
Investment Gains (Losses), Net	(1)	(8)	(1)	(13)
Subtotal	(1)	(8)	(1)	(13)
Other comprehensive income (loss)		0	0	3
Purchases	0		0	0
Sales			0	0
Transfers into level 3	0		2
Transfers out of Level 3	(6)		0	0
Closing Balance	18	51	18	51
GMIB Reinsurance Asset | Level 3 Assets And Liabilities Still Held
Total Gains Losses Realized Unrealized Included In [Abstract]
Increase (Decrease) in the Fair Value of the Reinsurance Contract Asset	1,104	(1,450)	2,741	(760)
GMIB Reinsurance Asset | Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Opening Balance	12,207	11,401	10,570	10,711
Total Gains Losses Realized Unrealized Included In [Abstract]
Increase (Decrease) in the Fair Value of the Reinsurance Contract Asset	1,065	(1,496)	2,662	(851)
Policyholders’ benefits			0
Subtotal	1,065	(1,496)	2,662	(851)
Purchases	55	57	110	113
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances			0	0
Sales	(16)	(11)	(31)	(22)
Closing Balance	13,311	9,951	13,311	9,951
Separate Accounts Assets | Level 3 Assets And Liabilities Still Held
Total Gains Losses Realized Unrealized Included In [Abstract]
Investment Gains (Losses), Net	6	9	13	17
Separate Accounts Assets | Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Opening Balance	323	267	313	260
Total Gains Losses Realized Unrealized Included In [Abstract]
Net investment income (loss)		9	0	17
Investment Gains (Losses), Net	5	0	13	0
Subtotal	5	9	13	17
Other comprehensive income (loss)			0	0
Purchases	10	8	10	11
Sales	(1)	0	(1)	(1)
Settlements	(1)	(1)	(2)	(2)
Transfers into level 3	1		1	0
Transfers out of Level 3	(30)	0	(27)	(2)
Closing Balance	307	283	307	283
GWBL and Other Features’ Liability | Level 3 Assets And Liabilities Still Held
Total Gains Losses Realized Unrealized Included In [Abstract]
Policyholders’ benefits	65	(58)	146	19
GWBL and Other Features’ Liability | Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Opening Balance	265	167	184	128
Total Gains Losses Realized Unrealized Included In [Abstract]
Policyholders’ benefits	10	(103)	40	(104)
Subtotal	10	(103)	40	(104)
Purchases	55	45	106	85
Closing Balance	330	109	330	109
Contingent Payment Arrangement | Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Opening Balance	31	(42)	31	(42)
Total Gains Losses Realized Unrealized Included In [Abstract]
Net investment income (loss)	1	1	1	1
Subtotal	1	1	1	1
Purchases		0		0
Settlements	(1)	(1)	(1)	(1)
Closing Balance	$ 31	$ (42)	$ 31	$ (42)