FAIR VALUE DISCLOSURES (Assets and Liabilities Measured on Recurring Basis) (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	$ 31,925	$ 33,072
Trading securities, at fair value	6,805	5,143
Fair Value, Measurements, Recurring
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	31,893	33,034
Other equity investments	146	278
Trading securities, at fair value	6,805	5,143
Other invested assets:	1,028	1,346
Cash equivalents	2,150	2,725
Segregated securities	565	476
GMIB reinsurance contracts	10,570	10,711
Separate Accounts’ assets	107,335	110,871
Total Assets	160,492	164,584
Liabilities, Fair Value Disclosure [Abstract]
Total Liabilities	525	550
Fair Value, Measurements, Recurring | Public corporate
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	20,302	22,220
Fair Value, Measurements, Recurring | U.S. Treasury, government and agency
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	8,775	7,331
Fair Value, Measurements, Recurring | States and political subdivisions
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	504	519
Fair Value, Measurements, Recurring | Foreign governments
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	415	446
Fair Value, Measurements, Recurring | Commercial mortgage-backed
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	533	735
Fair Value, Measurements, Recurring | Residential Mortgage Backed Securities
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	640	795
Fair Value, Measurements, Recurring | Asset-backed Securities
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	77	99
Fair Value, Measurements, Recurring | Redeemable preferred stock
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	647	889
Fair Value, Measurements, Recurring | Short-term investments
Investment Fair Value Disclosure [Abstract]
Other invested assets:	369	103
Fair Value, Measurements, Recurring | Swap
Investment Fair Value Disclosure [Abstract]
Other invested assets:	230	597
Fair Value, Measurements, Recurring | Credit default swaps
Investment Fair Value Disclosure [Abstract]
Other invested assets:	(22)	(18)
Fair Value, Measurements, Recurring | Future
Investment Fair Value Disclosure [Abstract]
Other invested assets:	(1)	(2)
Fair Value, Measurements, Recurring | Options Held
Investment Fair Value Disclosure [Abstract]
Other invested assets:	390	473
Fair Value, Measurements, Recurring | Floors
Investment Fair Value Disclosure [Abstract]
Other invested assets:	61	120
Fair Value, Measurements, Recurring | Foreign currency Contracts
Investment Fair Value Disclosure [Abstract]
Other invested assets:	1	1
Fair Value, Measurements, Recurring | Swaption
Investment Fair Value Disclosure [Abstract]
Other invested assets:		72
Fair Value, Measurements, Recurring | Guaranteed Minimum Withdrawal Benefit
Liabilities, Fair Value Disclosure [Abstract]
Guarantees	184	128
Fair Value, Measurements, Recurring | SCS, SIO, MSO and IUL indexed features liability
Liabilities, Fair Value Disclosure [Abstract]
Guarantees	310	380
Fair Value, Measurements, Recurring | Contingent Payment Arrangements
Liabilities, Fair Value Disclosure [Abstract]
Guarantees	31	42
Fair Value, Measurements, Recurring | Level 1
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	258	254
Other equity investments	97	217
Trading securities, at fair value	654	710
Other invested assets:	(1)	(2)
Cash equivalents	2,150	2,725
Segregated securities	0	0
GMIB reinsurance contracts	0	0
Separate Accounts’ assets	104,058	107,539
Total Assets	107,216	111,443
Liabilities, Fair Value Disclosure [Abstract]
Total Liabilities	0	0
Fair Value, Measurements, Recurring | Level 1 | Public corporate
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	0	0
Fair Value, Measurements, Recurring | Level 1 | U.S. Treasury, government and agency
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	0	0
Fair Value, Measurements, Recurring | Level 1 | States and political subdivisions
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	0	0
Fair Value, Measurements, Recurring | Level 1 | Foreign governments
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	0	0
Fair Value, Measurements, Recurring | Level 1 | Commercial mortgage-backed
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	0	0
Fair Value, Measurements, Recurring | Level 1 | Residential Mortgage Backed Securities
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	0	0
Fair Value, Measurements, Recurring | Level 1 | Asset-backed Securities
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	0	0
Fair Value, Measurements, Recurring | Level 1 | Redeemable preferred stock
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	258	254
Fair Value, Measurements, Recurring | Level 1 | Short-term investments
Investment Fair Value Disclosure [Abstract]
Other invested assets:	0	0
Fair Value, Measurements, Recurring | Level 1 | Swap
Investment Fair Value Disclosure [Abstract]
Other invested assets:	0	0
Fair Value, Measurements, Recurring | Level 1 | Credit default swaps
Investment Fair Value Disclosure [Abstract]
Other invested assets:	0	0
Fair Value, Measurements, Recurring | Level 1 | Future
Investment Fair Value Disclosure [Abstract]
Other invested assets:	(1)	(2)
Fair Value, Measurements, Recurring | Level 1 | Options Held
Investment Fair Value Disclosure [Abstract]
Other invested assets:	0	0
Fair Value, Measurements, Recurring | Level 1 | Floors
Investment Fair Value Disclosure [Abstract]
Other invested assets:	0	0
Fair Value, Measurements, Recurring | Level 1 | Foreign currency Contracts
Investment Fair Value Disclosure [Abstract]
Other invested assets:	0	0
Fair Value, Measurements, Recurring | Level 1 | Swaption
Investment Fair Value Disclosure [Abstract]
Other invested assets:		0
Fair Value, Measurements, Recurring | Level 1 | Guaranteed Minimum Withdrawal Benefit
Liabilities, Fair Value Disclosure [Abstract]
Guarantees	0	0
Fair Value, Measurements, Recurring | Level 1 | SCS, SIO, MSO and IUL indexed features liability
Liabilities, Fair Value Disclosure [Abstract]
Guarantees	0	0
Fair Value, Measurements, Recurring | Level 1 | Contingent Payment Arrangements
Liabilities, Fair Value Disclosure [Abstract]
Guarantees	0	0
Fair Value, Measurements, Recurring | Level 2
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	30,626	31,583
Other equity investments	0	0
Trading securities, at fair value	6,151	4,433
Other invested assets:	1,029	1,348
Cash equivalents	0	0
Segregated securities	565	476
GMIB reinsurance contracts	0	0
Separate Accounts’ assets	2,964	3,072
Total Assets	41,335	40,912
Liabilities, Fair Value Disclosure [Abstract]
Total Liabilities	310	380
Fair Value, Measurements, Recurring | Level 2 | Public corporate
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	19,882	21,840
Fair Value, Measurements, Recurring | Level 2 | U.S. Treasury, government and agency
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	8,775	7,331
Fair Value, Measurements, Recurring | Level 2 | States and political subdivisions
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	459	472
Fair Value, Measurements, Recurring | Level 2 | Foreign governments
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	414	446
Fair Value, Measurements, Recurring | Level 2 | Commercial mortgage-backed
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	30	20
Fair Value, Measurements, Recurring | Level 2 | Residential Mortgage Backed Securities
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	640	793
Fair Value, Measurements, Recurring | Level 2 | Asset-backed Securities
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	37	46
Fair Value, Measurements, Recurring | Level 2 | Redeemable preferred stock
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	389	635
Fair Value, Measurements, Recurring | Level 2 | Short-term investments
Investment Fair Value Disclosure [Abstract]
Other invested assets:	369	103
Fair Value, Measurements, Recurring | Level 2 | Swap
Investment Fair Value Disclosure [Abstract]
Other invested assets:	230	597
Fair Value, Measurements, Recurring | Level 2 | Credit default swaps
Investment Fair Value Disclosure [Abstract]
Other invested assets:	(22)	(18)
Fair Value, Measurements, Recurring | Level 2 | Future
Investment Fair Value Disclosure [Abstract]
Other invested assets:	0	0
Fair Value, Measurements, Recurring | Level 2 | Options Held
Investment Fair Value Disclosure [Abstract]
Other invested assets:	390	473
Fair Value, Measurements, Recurring | Level 2 | Floors
Investment Fair Value Disclosure [Abstract]
Other invested assets:	61	120
Fair Value, Measurements, Recurring | Level 2 | Foreign currency Contracts
Investment Fair Value Disclosure [Abstract]
Other invested assets:	1	1
Fair Value, Measurements, Recurring | Level 2 | Swaption
Investment Fair Value Disclosure [Abstract]
Other invested assets:		72
Fair Value, Measurements, Recurring | Level 2 | Guaranteed Minimum Withdrawal Benefit
Liabilities, Fair Value Disclosure [Abstract]
Guarantees	0	0
Fair Value, Measurements, Recurring | Level 2 | SCS, SIO, MSO and IUL indexed features liability
Liabilities, Fair Value Disclosure [Abstract]
Guarantees	310	380
Fair Value, Measurements, Recurring | Level 2 | Contingent Payment Arrangements
Liabilities, Fair Value Disclosure [Abstract]
Guarantees	0	0
Fair Value, Measurements, Recurring | Level 3
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	1,009	1,197
Other equity investments	49	61
Trading securities, at fair value	0	0
Other invested assets:	0	0
Cash equivalents	0	0
Segregated securities	0	0
GMIB reinsurance contracts	10,570	10,711
Separate Accounts’ assets	313	260
Total Assets	11,941	12,229
Liabilities, Fair Value Disclosure [Abstract]
Total Liabilities	215	170
Fair Value, Measurements, Recurring | Level 3 | Public corporate
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	420	380
Fair Value, Measurements, Recurring | Level 3 | U.S. Treasury, government and agency
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	0	0
Fair Value, Measurements, Recurring | Level 3 | States and political subdivisions
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	45	47
Fair Value, Measurements, Recurring | Level 3 | Foreign governments
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	1	0
Fair Value, Measurements, Recurring | Level 3 | Commercial mortgage-backed
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	503	715
Fair Value, Measurements, Recurring | Level 3 | Residential Mortgage Backed Securities
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	0	2
Fair Value, Measurements, Recurring | Level 3 | Asset-backed Securities
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	40	53
Fair Value, Measurements, Recurring | Level 3 | Redeemable preferred stock
Investment Fair Value Disclosure [Abstract]
Fixed maturities, available-for-sale:	0	0
Fair Value, Measurements, Recurring | Level 3 | Short-term investments
Investment Fair Value Disclosure [Abstract]
Other invested assets:	0	0
Fair Value, Measurements, Recurring | Level 3 | Swap
Investment Fair Value Disclosure [Abstract]
Other invested assets:	0	0
Fair Value, Measurements, Recurring | Level 3 | Credit default swaps
Investment Fair Value Disclosure [Abstract]
Other invested assets:	0	0
Fair Value, Measurements, Recurring | Level 3 | Future
Investment Fair Value Disclosure [Abstract]
Other invested assets:	0	0
Fair Value, Measurements, Recurring | Level 3 | Options Held
Investment Fair Value Disclosure [Abstract]
Other invested assets:	0	0
Fair Value, Measurements, Recurring | Level 3 | Floors
Investment Fair Value Disclosure [Abstract]
Other invested assets:	0	0
Fair Value, Measurements, Recurring | Level 3 | Foreign currency Contracts
Investment Fair Value Disclosure [Abstract]
Other invested assets:	0	0
Fair Value, Measurements, Recurring | Level 3 | Swaption
Investment Fair Value Disclosure [Abstract]
Other invested assets:		0
Fair Value, Measurements, Recurring | Level 3 | Guaranteed Minimum Withdrawal Benefit
Liabilities, Fair Value Disclosure [Abstract]
Guarantees	184	128
Fair Value, Measurements, Recurring | Level 3 | SCS, SIO, MSO and IUL indexed features liability
Liabilities, Fair Value Disclosure [Abstract]
Guarantees	0	0
Fair Value, Measurements, Recurring | Level 3 | Contingent Payment Arrangements
Liabilities, Fair Value Disclosure [Abstract]
Guarantees	$ 31	$ 42