GMDB, GMIB, GIB, GWBL AND OTHER FEATURES AND NO LAPSE GUARANTEE FEATURES - Separate Account Investments, Hedging Programs and Variable and Interest-Sensitive Live Insurance Policies (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]
Fair Value of Assets	$ 56,559	$ 58,084
Liabilities for Guarantees on Long-Duration Contracts [Line Items]
Opening Balance	7,373	5,829	$ 6,333
Closing Balance	8,283	7,373	5,829
GMDB
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]
Fair Value of Assets	84,640	88,048
Price Risk Fair Value Hedge Derivative On Balance Sheet [Abstract]
Total account value of hedged variable annuity contracts	50,333
Net amount at risk of hedged variable annuity contracts	7,841
Liabilities for Guarantees on Long-Duration Contracts [Line Items]
Opening Balance	1,729	1,626	1,772
Closing Balance	2,986	1,729	1,626
GMIB
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]
Fair Value of Assets	56,559
Price Risk Fair Value Hedge Derivative On Balance Sheet [Abstract]
Total account value of hedged variable annuity contracts	32,740
Net amount at risk of hedged variable annuity contracts	1,560
Liabilities for Guarantees on Long-Duration Contracts [Line Items]
Opening Balance	5,644	4,203	4,561
Closing Balance	5,297	5,644	4,203
Equity | GMDB
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]
Fair Value of Assets	66,230	67,108
Equity | GMIB
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]
Fair Value of Assets	43,874	43,850
Fixed income | GMDB
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]
Fair Value of Assets	2,686	3,031
Fixed income | GMIB
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]
Fair Value of Assets	1,819	1,988
Balanced | GMDB
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]
Fair Value of Assets	15,350	17,505
Balanced | GMIB
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]
Fair Value of Assets	10,696	12,060
Other | GMDB
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]
Fair Value of Assets	374	404
Other | GMIB
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]
Fair Value of Assets	170	186
Direct Liabilities For Guarantees
Liabilities for Guarantees on Long-Duration Contracts [Line Items]
Opening Balance	964	829	556
Other changes in reserves	120	135	273
Closing Balance	1,084	964	829
Ceded Liabilities For Guarantees
Liabilities for Guarantees on Long-Duration Contracts [Line Items]
Opening Balance	(555)	(441)	(310)
Other changes in reserves	16	(114)	(131)
Closing Balance	(539)	(555)	(441)
Net Liabilities For Guarantees
Liabilities for Guarantees on Long-Duration Contracts [Line Items]
Opening Balance	409	388	246
Other changes in reserves	136	21	142
Closing Balance	$ 545	$ 409	$ 388