FAIR VALUE MEASUREMENTS (Details - Assets and Liabilities Measured at Fair Value on a Recurring Basis) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	$ 253,785	$ 248,245
Other bond securities	15,344	16,782
Equity securities available for sale	2,770	2,915
Other equity securities	877	921
Other invested assets	7,996	8,912
Derivative Assets, Fair Value	5,550	4,131
Derivative assets, Counterparty netting	(2,023)	(1,268)
Derivative assets, Cash collateral	(2,036)	(1,554)
Short-term investments, portion measured at fair value	2,468	2,591
Separate account assets, at fair value	79,532	79,574
Fair Value, Liabilities Measured on Recurring Basis
Policyholder contract deposits, portion measured at fair value	3,290	2,325
Other policyholder funds	4,203	4,212
Derivative Liabilities, Fair Value	5,159	4,048
Derivative liabilities, Counterparty netting	(2,023)	(1,268)
Derivative liabilities, Cash collateral	(992)	(760)
Long-term debt, portion measured at fair value	3,902	3,670
Other liabilities	175	62
U.S. government and government sponsored entities
Fair Value, Liabilities Measured on Recurring Basis
Assets transferred from Level 1 to Level 2	0		$ 115
Non-U.S. government
Fair Value, Liabilities Measured on Recurring Basis
Assets transferred from Level 1 to Level 2	83		72
Recurring Basis
Fair Value, Liabilities Measured on Recurring Basis
Assets transferred from Level 2 to Level 1	0		$ 0
Recurring Basis | Level 1
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	715	683
Other bond securities	30	0
Equity securities available for sale	2,768	2,914
Other equity securities	862	906
Mortgage and other loans receivable	0
Other invested assets	1	2
Derivative Assets, Fair Value	123	91
Short-term investments, portion measured at fair value	1,367	1,416
Separate account assets, at fair value	74,470	73,699
Other assets	0
Fair value assets measured on recurring basis, total	80,336	79,711
Fair Value, Liabilities Measured on Recurring Basis
Policyholder contract deposits, portion measured at fair value	0	0
Other policyholder funds	6	6
Derivative Liabilities, Fair Value	4	0
Long-term debt, portion measured at fair value	0	0
Other liabilities	134	0
Fair value liabilities measured on recurring basis, total	144	6
Recurring Basis | Level 1 | Interest rate contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value	0	0
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value	0	0
Recurring Basis | Level 1 | Foreign exchange contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value	0	0
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value	4	0
Recurring Basis | Level 1 | Equity contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value	123	91
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value	0	0
Recurring Basis | Level 1 | Commodity contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value	0	0
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value	0	0
Recurring Basis | Level 1 | Credit contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value	0	0
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value	0	0
Recurring Basis | Level 1 | Other contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value	0	0
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value	0	0
Recurring Basis | Level 1 | U.S. government and government sponsored entities
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	7	0
Other bond securities	30	0
Recurring Basis | Level 1 | Obligations of states, municipalities and political subdivisions
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	0	0
Other bond securities	0	0
Recurring Basis | Level 1 | Non-U.S. government
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	708	683
Other bond securities	0	0
Recurring Basis | Level 1 | Corporate debt
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	0	0
Other bond securities	0	0
Recurring Basis | Level 1 | Residential mortgage-backed securities (RMBS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	0	0
Other bond securities	0	0
Recurring Basis | Level 1 | Commercial mortgage-backed securities (CMBS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	0	0
Other bond securities	0	0
Recurring Basis | Level 1 | Collateralized Debt Obligations/Asset Backed Securities (CDO/ABS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	0	0
Other bond securities	0	0
Recurring Basis | Level 1 | Common Stock
Fair Value, Assets Measured on Recurring Basis
Equity securities available for sale	2,274	2,401
Recurring Basis | Level 1 | Preferred Stock
Fair Value, Assets Measured on Recurring Basis
Equity securities available for sale	23	22
Recurring Basis | Level 1 | Mutual Funds
Fair Value, Assets Measured on Recurring Basis
Equity securities available for sale	471	491
Recurring Basis | Level 2
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	224,698	218,745
Other bond securities	7,037	7,936
Equity securities available for sale	2	1
Other equity securities	0	1
Mortgage and other loans receivable	0
Other invested assets	32	1
Derivative Assets, Fair Value	5,338	3,950
Short-term investments, portion measured at fair value	1,101	1,175
Separate account assets, at fair value	5,062	5,875
Other assets	0	0
Fair value assets measured on recurring basis, total	243,270	237,684
Fair Value, Liabilities Measured on Recurring Basis
Policyholder contract deposits, portion measured at fair value	39	36
Other policyholder funds	0	0
Derivative Liabilities, Fair Value	4,449	3,402
Long-term debt, portion measured at fair value	3,718	3,487
Other liabilities	41	62
Fair value liabilities measured on recurring basis, total	8,247	6,987
Recurring Basis | Level 2 | Interest rate contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value	4,391	3,150
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value	3,048	2,137
Recurring Basis | Level 2 | Foreign exchange contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value	877	766
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value	1,371	1,197
Recurring Basis | Level 2 | Equity contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value	69	32
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value	30	68
Recurring Basis | Level 2 | Commodity contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value	0	0
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value	0	0
Recurring Basis | Level 2 | Credit contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value	0	0
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value	0	0
Recurring Basis | Level 2 | Other contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value	1	2
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value	0	0
Recurring Basis | Level 2 | U.S. government and government sponsored entities
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	2,034	1,844
Other bond securities	3,373	3,369
Recurring Basis | Level 2 | Obligations of states, municipalities and political subdivisions
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	25,562	25,199
Other bond securities	0	75
Recurring Basis | Level 2 | Non-U.S. government
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	17,877	17,480
Other bond securities	53	50
Recurring Basis | Level 2 | Corporate debt
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	137,924	134,618
Other bond securities	1,861	2,018
Recurring Basis | Level 2 | Residential mortgage-backed securities (RMBS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	20,060	19,690
Other bond securities	440	649
Recurring Basis | Level 2 | Commercial mortgage-backed securities (CMBS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	12,069	10,986
Other bond securities	517	557
Recurring Basis | Level 2 | Collateralized Debt Obligations/Asset Backed Securities (CDO/ABS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	9,172	8,928
Other bond securities	793	1,218
Recurring Basis | Level 2 | Common Stock
Fair Value, Assets Measured on Recurring Basis
Equity securities available for sale	0	0
Recurring Basis | Level 2 | Preferred Stock
Fair Value, Assets Measured on Recurring Basis
Equity securities available for sale	0	0
Recurring Basis | Level 2 | Mutual Funds
Fair Value, Assets Measured on Recurring Basis
Equity securities available for sale	2	1
Recurring Basis | Level 3
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	28,372	28,817
Other bond securities	8,277	8,846
Equity securities available for sale	0	0
Other equity securities	15	14
Mortgage and other loans receivable	11	11
Other invested assets	263	332
Derivative Assets, Fair Value	89	90
Short-term investments, portion measured at fair value	0	0
Separate account assets, at fair value	0
Other assets	0
Fair value assets measured on recurring basis, total	37,027	38,110
Fair Value, Liabilities Measured on Recurring Basis
Policyholder contract deposits, portion measured at fair value	3,251	2,289
Other policyholder funds	0	0
Derivative Liabilities, Fair Value	706	646
Long-term debt, portion measured at fair value	184	183
Other liabilities	0	0
Fair value liabilities measured on recurring basis, total	4,141	3,118
Recurring Basis | Level 3 | Interest rate contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value	14	12
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value	62	62
Recurring Basis | Level 3 | Foreign exchange contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value	0	0
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value	9	7
Recurring Basis | Level 3 | Equity contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value	51	54
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value	0	0
Recurring Basis | Level 3 | Commodity contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value	0	0
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value	0	0
Recurring Basis | Level 3 | Credit contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value	3	3
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value	493	508
Recurring Basis | Level 3 | Other contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value	21	21
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value	142	69
Recurring Basis | Level 3 | U.S. government and government sponsored entities
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	0	0
Other bond securities	0	0
Recurring Basis | Level 3 | Obligations of states, municipalities and political subdivisions
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	2,196	2,124
Other bond securities	0	0
Recurring Basis | Level 3 | Non-U.S. government
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	30	32
Other bond securities	0	0
Recurring Basis | Level 3 | Corporate debt
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	1,024	1,370
Other bond securities	18	17
Recurring Basis | Level 3 | Residential mortgage-backed securities (RMBS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	16,162	16,537
Other bond securities	1,513	1,581
Recurring Basis | Level 3 | Commercial mortgage-backed securities (CMBS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	2,368	2,585
Other bond securities	170	193
Recurring Basis | Level 3 | Collateralized Debt Obligations/Asset Backed Securities (CDO/ABS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	6,592	6,169
Other bond securities	6,576	7,055
Recurring Basis | Level 3 | Common Stock
Fair Value, Assets Measured on Recurring Basis
Equity securities available for sale	0	0
Recurring Basis | Level 3 | Preferred Stock
Fair Value, Assets Measured on Recurring Basis
Equity securities available for sale	0	0
Recurring Basis | Level 3 | Mutual Funds
Fair Value, Assets Measured on Recurring Basis
Equity securities available for sale	0	0
Recurring Basis | Counterparty Netting
Fair Value, Assets Measured on Recurring Basis
Other bond securities	0
Equity securities available for sale	0
Other equity securities	0
Other invested assets	0
Derivative assets, Counterparty netting	(2,023)	(1,268)
Separate account assets, at fair value	0
Other assets	0
Fair Value, Liabilities Measured on Recurring Basis
Policyholder contract deposits, portion measured at fair value	0
Derivative liabilities, Counterparty netting	(2,023)	(1,268)
Long-term debt, portion measured at fair value	0
Other liabilities	0
Recurring Basis | Counterparty Netting | Counterparty netting and cash collateral
Fair Value, Assets Measured on Recurring Basis
Derivative assets, Counterparty netting	(2,023)	(1,268)
Fair Value, Liabilities Measured on Recurring Basis
Derivative liabilities, Counterparty netting	(2,023)	(1,268)
Recurring Basis | Cash Collateral
Fair Value, Assets Measured on Recurring Basis
Other bond securities	0
Equity securities available for sale	0
Other equity securities	0
Other invested assets	0
Derivative assets, Cash collateral	(2,036)	(1,554)
Separate account assets, at fair value	0
Other assets	0
Fair Value, Liabilities Measured on Recurring Basis
Policyholder contract deposits, portion measured at fair value	0
Derivative liabilities, Cash collateral	(992)	(760)
Long-term debt, portion measured at fair value	0
Other liabilities	0
Recurring Basis | Cash Collateral | Counterparty netting and cash collateral
Fair Value, Assets Measured on Recurring Basis
Derivative assets, Cash collateral	(2,036)	(1,554)
Fair Value, Liabilities Measured on Recurring Basis
Derivative liabilities, Cash collateral	(992)	(760)
Recurring Basis | Total Fair Value
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	253,785	248,245
Other bond securities	15,344	16,782
Equity securities available for sale	2,770	2,915
Other equity securities	877	921
Mortgage and other loans receivable	11	11
Other invested assets	296	335
Derivative Assets, Fair Value	1,491	1,309
Short-term investments, portion measured at fair value	2,468	2,591
Separate account assets, at fair value	79,532	79,574
Other assets		0
Fair value assets measured on recurring basis, total	356,574	352,683
Fair Value, Liabilities Measured on Recurring Basis
Policyholder contract deposits, portion measured at fair value	3,290	2,325
Other policyholder funds	6	6
Derivative Liabilities, Fair Value	2,144	2,020
Long-term debt, portion measured at fair value	3,902	3,670
Other liabilities	175	62
Fair value liabilities measured on recurring basis, total	9,517	8,083
Recurring Basis | Total Fair Value | Interest rate contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value	4,405	3,162
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value	3,110	2,199
Recurring Basis | Total Fair Value | Foreign exchange contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value	877	766
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value	1,384	1,204
Recurring Basis | Total Fair Value | Equity contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value	243	177
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value	30	68
Recurring Basis | Total Fair Value | Commodity contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value	0	0
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value	0	0
Recurring Basis | Total Fair Value | Credit contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value	3	3
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value	493	508
Recurring Basis | Total Fair Value | Other contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value	22	23
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value	142	69
Recurring Basis | Total Fair Value | Counterparty netting and cash collateral
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value	(4,059)	(2,822)
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value	(3,015)	(2,028)
Recurring Basis | Total Fair Value | U.S. government and government sponsored entities
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	2,041	1,844
Other bond securities	3,403	3,369
Recurring Basis | Total Fair Value | Obligations of states, municipalities and political subdivisions
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	27,758	27,323
Other bond securities	0	75
Recurring Basis | Total Fair Value | Non-U.S. government
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	18,615	18,195
Other bond securities	53	50
Recurring Basis | Total Fair Value | Corporate debt
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	138,948	135,988
Other bond securities	1,879	2,035
Recurring Basis | Total Fair Value | Residential mortgage-backed securities (RMBS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	36,222	36,227
Other bond securities	1,953	2,230
Recurring Basis | Total Fair Value | Commercial mortgage-backed securities (CMBS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	14,437	13,571
Other bond securities	687	750
Recurring Basis | Total Fair Value | Collateralized Debt Obligations/Asset Backed Securities (CDO/ABS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	15,764	15,097
Other bond securities	7,369	8,273
Recurring Basis | Total Fair Value | Common Stock
Fair Value, Assets Measured on Recurring Basis
Equity securities available for sale	2,274	2,401
Recurring Basis | Total Fair Value | Preferred Stock
Fair Value, Assets Measured on Recurring Basis
Equity securities available for sale	23	22
Recurring Basis | Total Fair Value | Mutual Funds
Fair Value, Assets Measured on Recurring Basis
Equity securities available for sale	$ 473	$ 492