FAIR VALUE MEASUREMENTS (Details - Changes in Level 3 Recurring Fair Value Measurements) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	$ 38,020	$ 39,655
Net Realized and Unrealized Gains (Losses) Included in Income	141	839
Other Comprehensive Income (Loss)	(531)	(463)
Purchases, Sales, Issues and Settlements, Net	(299)	122
Gross Transfers in, assets	242	692
Gross Transfers out, assets	(635)	(362)
Balance End of Period	36,938	40,483
Trading Revenue
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	(352)	(72)
Liabilities
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	3,028	2,794
Net realized and unrealized gains and losses related to Level 3 items, liabilities	904	94
Accumulated Other Comprehensive Income (loss)	0	(2)
Purchases, Sales, Issues and Settlements-Net	120	(4)
Gross Transfers in, liabilities	0	0
Gross Transfers out, liabilities	0	0
Balance at the End of the Period	4,052	2,882
Liabilities | Trading Revenue
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, liabilities	(29)	13
Policyholder contract deposits
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	2,289	1,509
Net realized and unrealized gains and losses related to Level 3 items, liabilities	845	275
Accumulated Other Comprehensive Income (loss)	0	0
Purchases, Sales, Issues and Settlements-Net	117	51
Gross Transfers in, liabilities	0	0
Gross Transfers out, liabilities	0	0
Balance at the End of the Period	3,251	1,835
Policyholder contract deposits | Trading Revenue
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, liabilities	22	(50)
Derivative liabilities, net
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	556	1,072
Net realized and unrealized gains and losses related to Level 3 items, liabilities	57	(166)
Accumulated Other Comprehensive Income (loss)	0	(2)
Purchases, Sales, Issues and Settlements-Net	4	(43)
Gross Transfers in, liabilities	0	0
Gross Transfers out, liabilities	0	0
Balance at the End of the Period	617	861
Derivative liabilities, net | Trading Revenue
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, liabilities	(49)	44
Interest rate contracts
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	50	74
Net realized and unrealized gains and losses related to Level 3 items, liabilities	4	4
Accumulated Other Comprehensive Income (loss)	0	0
Purchases, Sales, Issues and Settlements-Net	(6)	(9)
Gross Transfers in, liabilities	0	0
Gross Transfers out, liabilities	0	0
Balance at the End of the Period	48	69
Interest rate contracts | Trading Revenue
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, liabilities	(4)	(4)
Foreign exchange contracts
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	7	8
Net realized and unrealized gains and losses related to Level 3 items, liabilities	1	(1)
Accumulated Other Comprehensive Income (loss)	0	0
Purchases, Sales, Issues and Settlements-Net	1	1
Gross Transfers in, liabilities	0	0
Gross Transfers out, liabilities	0	0
Balance at the End of the Period	9	8
Foreign exchange contracts | Trading Revenue
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, liabilities	(1)	1
Equity contracts
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	(54)	(47)
Net realized and unrealized gains and losses related to Level 3 items, liabilities	4	(8)
Accumulated Other Comprehensive Income (loss)	0	0
Purchases, Sales, Issues and Settlements-Net	(1)	(11)
Gross Transfers in, liabilities	0	0
Gross Transfers out, liabilities	0	0
Balance at the End of the Period	(51)	(66)
Equity contracts | Trading Revenue
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, liabilities	(4)	5
Commodity contracts
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	0	0
Net realized and unrealized gains and losses related to Level 3 items, liabilities	0	0
Accumulated Other Comprehensive Income (loss)	0	0
Purchases, Sales, Issues and Settlements-Net	0	0
Gross Transfers in, liabilities	0	0
Gross Transfers out, liabilities	0	0
Balance at the End of the Period	0	0
Commodity contracts | Trading Revenue
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, liabilities	0	0
Credit contracts
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	505	978
Net realized and unrealized gains and losses related to Level 3 items, liabilities	(6)	(147)
Accumulated Other Comprehensive Income (loss)	0	0
Purchases, Sales, Issues and Settlements-Net	(9)	(40)
Gross Transfers in, liabilities	0	0
Gross Transfers out, liabilities	0	0
Balance at the End of the Period	490	791
Credit contracts | Trading Revenue
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, liabilities	14	28
Other contracts
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	48	59
Net realized and unrealized gains and losses related to Level 3 items, liabilities	54	(14)
Accumulated Other Comprehensive Income (loss)	0	(2)
Purchases, Sales, Issues and Settlements-Net	19	16
Gross Transfers in, liabilities	0	0
Gross Transfers out, liabilities	0	0
Balance at the End of the Period	121	59
Other contracts | Trading Revenue
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, liabilities	(54)	14
Long-term debt
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	183	213
Net realized and unrealized gains and losses related to Level 3 items, liabilities	2	(15)
Accumulated Other Comprehensive Income (loss)	0	0
Purchases, Sales, Issues and Settlements-Net	(1)	(12)
Gross Transfers in, liabilities	0	0
Gross Transfers out, liabilities	0	0
Balance at the End of the Period	184	186
Long-term debt | Trading Revenue
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, liabilities	(2)	19
Bonds available for sale
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	28,817	29,683
Net Realized and Unrealized Gains (Losses) Included in Income	300	316
Other Comprehensive Income (Loss)	(526)	29
Purchases, Sales, Issues and Settlements, Net	167	794
Gross Transfers in, assets	177	44
Gross Transfers out, assets	(563)	(257)
Balance End of Period	28,372	30,609
Bonds available for sale | Obligations of states, municipalities and political subdivisions
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	2,124	2,159
Net Realized and Unrealized Gains (Losses) Included in Income	0	1
Other Comprehensive Income (Loss)	58	45
Purchases, Sales, Issues and Settlements, Net	14	65
Gross Transfers in, assets	0	0
Gross Transfers out, assets	0	(14)
Balance End of Period	2,196	2,256
Bonds available for sale | Non-U.S. government
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	32	30
Net Realized and Unrealized Gains (Losses) Included in Income	0	0
Other Comprehensive Income (Loss)	(2)	0
Purchases, Sales, Issues and Settlements, Net	0	4
Gross Transfers in, assets	0	0
Gross Transfers out, assets	0	0
Balance End of Period	30	34
Bonds available for sale | Corporate debt
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	1,370	1,883
Net Realized and Unrealized Gains (Losses) Included in Income	1	0
Other Comprehensive Income (Loss)	(24)	17
Purchases, Sales, Issues and Settlements, Net	29	(61)
Gross Transfers in, assets	121	44
Gross Transfers out, assets	(473)	(56)
Balance End of Period	1,024	1,827
Bonds available for sale | Residential mortgage-backed securities (RMBS)
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	16,537	16,805
Net Realized and Unrealized Gains (Losses) Included in Income	245	258
Other Comprehensive Income (Loss)	(420)	(72)
Purchases, Sales, Issues and Settlements, Net	(233)	354
Gross Transfers in, assets	33	0
Gross Transfers out, assets	0	0
Balance End of Period	16,162	17,345
Bonds available for sale | Commercial mortgage-backed securities (CMBS)
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	2,585	2,696
Net Realized and Unrealized Gains (Losses) Included in Income	42	24
Other Comprehensive Income (Loss)	(88)	10
Purchases, Sales, Issues and Settlements, Net	(81)	30
Gross Transfers in, assets	0	0
Gross Transfers out, assets	(90)	(66)
Balance End of Period	2,368	2,694
Bonds available for sale | Collateralized Debt Obligations/Asset Backed Securities (CDO/ABS)
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	6,169	6,110
Net Realized and Unrealized Gains (Losses) Included in Income	12	33
Other Comprehensive Income (Loss)	(50)	29
Purchases, Sales, Issues and Settlements, Net	438	402
Gross Transfers in, assets	23	0
Gross Transfers out, assets	0	(121)
Balance End of Period	6,592	6,453
Other bond securities
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	8,846	8,923
Net Realized and Unrealized Gains (Losses) Included in Income	(171)	113
Other Comprehensive Income (Loss)	0	0
Purchases, Sales, Issues and Settlements, Net	(445)	(134)
Gross Transfers in, assets	65	626
Gross Transfers out, assets	(18)	(105)
Balance End of Period	8,277	9,423
Other bond securities | Trading Revenue
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	(352)	(69)
Other bond securities | Obligations of states, municipalities and political subdivisions
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Purchases, Sales, Issues and Settlements, Net	0	0
Other bond securities | Non-U.S. government
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Purchases, Sales, Issues and Settlements, Net	0	0
Other bond securities | Corporate debt
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	17
Net Realized and Unrealized Gains (Losses) Included in Income	1
Purchases, Sales, Issues and Settlements, Net	0	0
Gross Transfers in, assets	0	16
Balance End of Period	18	16
Other bond securities | Corporate debt | Trading Revenue
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	1
Other bond securities | Residential mortgage-backed securities (RMBS)
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	1,581	1,105
Net Realized and Unrealized Gains (Losses) Included in Income	(37)	(19)
Other Comprehensive Income (Loss)	0	0
Purchases, Sales, Issues and Settlements, Net	(13)	204
Gross Transfers in, assets	0	29
Gross Transfers out, assets	(18)	(31)
Balance End of Period	1,513	1,288
Other bond securities | Residential mortgage-backed securities (RMBS) | Trading Revenue
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	(45)	(31)
Other bond securities | Commercial mortgage-backed securities (CMBS)
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	193	369
Net Realized and Unrealized Gains (Losses) Included in Income	(2)	0
Other Comprehensive Income (Loss)	0	0
Purchases, Sales, Issues and Settlements, Net	(21)	(100)
Gross Transfers in, assets	0	0
Gross Transfers out, assets	0	0
Balance End of Period	170	269
Other bond securities | Commercial mortgage-backed securities (CMBS) | Trading Revenue
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	(2)	2
Other bond securities | Collateralized Debt Obligations/Asset Backed Securities (CDO/ABS)
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	7,055	7,449
Net Realized and Unrealized Gains (Losses) Included in Income	(133)	132
Other Comprehensive Income (Loss)	0	0
Purchases, Sales, Issues and Settlements, Net	(411)	(238)
Gross Transfers in, assets	65	581
Gross Transfers out, assets	0	(74)
Balance End of Period	6,576	7,850
Other bond securities | Collateralized Debt Obligations/Asset Backed Securities (CDO/ABS) | Trading Revenue
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	(306)	(40)
Equity securities available for sale
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	0	1
Net Realized and Unrealized Gains (Losses) Included in Income	0	0
Other Comprehensive Income (Loss)	0	0
Purchases, Sales, Issues and Settlements, Net	0	0
Gross Transfers in, assets	0	0
Gross Transfers out, assets	0	0
Balance End of Period	0	1
Equity securities available for sale | Common Stock
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	0	1
Net Realized and Unrealized Gains (Losses) Included in Income	0	0
Other Comprehensive Income (Loss)	0	0
Purchases, Sales, Issues and Settlements, Net	0	0
Gross Transfers in, assets	0	0
Gross Transfers out, assets	0	0
Balance End of Period	0	1
Mortgage and other loans receivable
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	11	6
Gross Transfers in, assets		0
Balance End of Period	11	6
Other invested assets
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	332	1,042
Net Realized and Unrealized Gains (Losses) Included in Income	11	410
Other Comprehensive Income (Loss)	(5)	(492)
Purchases, Sales, Issues and Settlements, Net	(21)	(538)
Gross Transfers in, assets	0	0
Gross Transfers out, assets	(54)	0
Balance End of Period	263	422
Other invested assets | Trading Revenue
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	(1)
Other equity securities
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	14
Net Realized and Unrealized Gains (Losses) Included in Income	1
Purchases, Sales, Issues and Settlements, Net	0
Gross Transfers in, assets	0	22
Balance End of Period	15	22
Other equity securities | Trading Revenue
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	$ 1	$ (3)