FAIR VALUE MEASUREMENTS (Details - Changes in Level 3 Recurring Fair Value Measurements) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	$ 37,666	$ 38,020
Net Realized and Unrealized Gains (Losses) Included in Income	2,133	1,380
Other Comprehensive Income (Loss)	1,298	(321)
Purchases, Sales, Issues and Settlements, Net	(4,647)	(1,275)
Gross Transfers in, assets	956	1,364
Gross Transfers out, assets	(1,643)	(1,485)
Divested Businesses	0	(14)
Reclassified to Assets Held for Sale	0	(3)
Balance End of Period	35,763	37,666
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	487	(410)
Balance at the Beginning of the Period	3,413	3,028
Net realized and unrealized gains and losses related to Level 3 items, liabilities	639	341
Accumulated Other Comprehensive Income (loss)		0
Purchases, Sales, Issues and Settlements-Net	274	153
Gross Transfers in, liabilities	(3)	0
Gross Transfers out, liabilities	0	(109)
Balance at the End of the Period	4,323	3,413
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, liabilities	(318)	(156)
Policyholder contract deposits
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	3,033	2,289
Net realized and unrealized gains and losses related to Level 3 items, liabilities	807	441
Accumulated Other Comprehensive Income (loss)	0	0
Purchases, Sales, Issues and Settlements-Net	296	303
Gross Transfers in, liabilities	0	0
Gross Transfers out, liabilities	0	0
Balance at the End of the Period	4,136	3,033
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, liabilities	(499)	(366)
Derivative liabilities, net
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	309	556
Net realized and unrealized gains and losses related to Level 3 items, liabilities	(184)	(104)
Accumulated Other Comprehensive Income (loss)		0
Purchases, Sales, Issues and Settlements-Net	65	(147)
Gross Transfers in, liabilities	(3)	0
Gross Transfers out, liabilities	0	4
Balance at the End of the Period	187	309
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, liabilities	181	211
Interest rate contracts
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	38	50
Net realized and unrealized gains and losses related to Level 3 items, liabilities	(5)	(8)
Accumulated Other Comprehensive Income (loss)	0	0
Purchases, Sales, Issues and Settlements-Net	(11)	(4)
Gross Transfers in, liabilities	0	0
Gross Transfers out, liabilities	0	0
Balance at the End of the Period	22	38
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, liabilities	5	6
Foreign exchange contracts
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	11	7
Net realized and unrealized gains and losses related to Level 3 items, liabilities	(2)	5
Accumulated Other Comprehensive Income (loss)	0	0
Purchases, Sales, Issues and Settlements-Net	(9)	(1)
Gross Transfers in, liabilities	0	0
Gross Transfers out, liabilities	0	0
Balance at the End of the Period	0	11
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, liabilities	3	(4)
Equity contracts
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	(58)	(54)
Net realized and unrealized gains and losses related to Level 3 items, liabilities	(41)	(10)
Accumulated Other Comprehensive Income (loss)	0	0
Purchases, Sales, Issues and Settlements-Net	17	6
Gross Transfers in, liabilities	0	0
Gross Transfers out, liabilities	0	0
Balance at the End of the Period	(82)	(58)
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, liabilities	35	10
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
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	329	505
Net realized and unrealized gains and losses related to Level 3 items, liabilities	(62)	(81)
Accumulated Other Comprehensive Income (loss)	0	0
Purchases, Sales, Issues and Settlements-Net	(5)	(95)
Gross Transfers in, liabilities	0	0
Gross Transfers out, liabilities	0	0
Balance at the End of the Period	262	329
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, liabilities	61	71
Other contracts
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	(11)	48
Net realized and unrealized gains and losses related to Level 3 items, liabilities	(74)	(10)
Accumulated Other Comprehensive Income (loss)	0	0
Purchases, Sales, Issues and Settlements-Net	73	(53)
Gross Transfers in, liabilities	(3)	0
Gross Transfers out, liabilities	0	4
Balance at the End of the Period	(15)	(11)
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, liabilities	77	128
Long-term debt
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	71	183
Net realized and unrealized gains and losses related to Level 3 items, liabilities	16	4
Accumulated Other Comprehensive Income (loss)		0
Purchases, Sales, Issues and Settlements-Net	(87)	(3)
Gross Transfers in, liabilities		0
Gross Transfers out, liabilities	0	(113)
Balance at the End of the Period	0	71
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, liabilities	0	(1)
Bonds available for sale
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	29,971	28,817
Net Realized and Unrealized Gains (Losses) Included in Income	1,080	1,065
Other Comprehensive Income (Loss)	1,304	(321)
Purchases, Sales, Issues and Settlements, Net	(2,820)	476
Gross Transfers in, assets	933	1,299
Gross Transfers out, assets	(1,472)	(1,348)
Divested Businesses	0	(14)
Reclassified to Assets Held for Sale	0	(3)
Balance End of Period	28,996	29,971
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets		0
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	2,040	2,124
Net Realized and Unrealized Gains (Losses) Included in Income	5	5
Other Comprehensive Income (Loss)	167	0
Purchases, Sales, Issues and Settlements, Net	216	61
Gross Transfers in, assets	8	2
Gross Transfers out, assets	(32)	(152)
Balance End of Period	2,404	2,040
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets		0
Bonds available for sale | Non-U.S. governments
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	17	32
Net Realized and Unrealized Gains (Losses) Included in Income	(9)	(3)
Other Comprehensive Income (Loss)	9	(12)
Purchases, Sales, Issues and Settlements, Net	(9)	7
Gross Transfers in, assets	0	1
Gross Transfers out, assets	0	(5)
Divested Businesses		0
Reclassified to Assets Held for Sale	0	(3)
Balance End of Period	8	17
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets		0
Bonds available for sale | Corporate debt
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	1,133	1,370
Net Realized and Unrealized Gains (Losses) Included in Income	(3)	(13)
Other Comprehensive Income (Loss)	20	(42)
Purchases, Sales, Issues and Settlements, Net	(259)	(111)
Gross Transfers in, assets	886	920
Gross Transfers out, assets	(604)	(977)
Divested Businesses	0	(14)
Reclassified to Assets Held for Sale		0
Balance End of Period	1,173	1,133
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets		0
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	16,906	16,537
Net Realized and Unrealized Gains (Losses) Included in Income	1,071	970
Other Comprehensive Income (Loss)	942	(24)
Purchases, Sales, Issues and Settlements, Net	(2,763)	(878)
Gross Transfers in, assets	19	330
Gross Transfers out, assets	(39)	(29)
Balance End of Period	16,136	16,906
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets		0
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	2,040	2,585
Net Realized and Unrealized Gains (Losses) Included in Income	35	72
Other Comprehensive Income (Loss)	11	(132)
Purchases, Sales, Issues and Settlements, Net	(748)	(323)
Gross Transfers in, assets	20	23
Gross Transfers out, assets	(734)	(185)
Balance End of Period	624	2,040
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets		0
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	7,835	6,169
Net Realized and Unrealized Gains (Losses) Included in Income	(19)	34
Other Comprehensive Income (Loss)	155	(111)
Purchases, Sales, Issues and Settlements, Net	743	1,720
Gross Transfers in, assets	0	23
Gross Transfers out, assets	(63)	0
Balance End of Period	8,651	7,835
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets		0
Other bond securities
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	7,480	8,846
Net Realized and Unrealized Gains (Losses) Included in Income	1,039	314
Other Comprehensive Income (Loss)	0	0
Purchases, Sales, Issues and Settlements, Net	(1,861)	(1,662)
Gross Transfers in, assets	23	65
Gross Transfers out, assets	(169)	(83)
Balance End of Period	6,512	7,480
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	481	(418)
Other bond securities | Corporate debt
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	17	17
Net Realized and Unrealized Gains (Losses) Included in Income	3	0
Other Comprehensive Income (Loss)	0	0
Purchases, Sales, Issues and Settlements, Net	10	0
Gross Transfers in, assets	0	0
Gross Transfers out, assets	(12)	0
Balance End of Period	18	17
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	1	0
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	1,605	1,581
Net Realized and Unrealized Gains (Losses) Included in Income	191	43
Other Comprehensive Income (Loss)	0	0
Purchases, Sales, Issues and Settlements, Net	(313)	(1)
Gross Transfers in, assets	14	0
Gross Transfers out, assets	(33)	(18)
Balance End of Period	1,464	1,605
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	113	(24)
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	155	193
Net Realized and Unrealized Gains (Losses) Included in Income	4	0
Other Comprehensive Income (Loss)	0	0
Purchases, Sales, Issues and Settlements, Net	24	(38)
Gross Transfers in, assets	9	0
Gross Transfers out, assets	(118)	0
Balance End of Period	74	155
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	5	(1)
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	5,703	7,055
Net Realized and Unrealized Gains (Losses) Included in Income	841	271
Other Comprehensive Income (Loss)	0	0
Purchases, Sales, Issues and Settlements, Net	(1,582)	(1,623)
Gross Transfers in, assets	0	65
Gross Transfers out, assets	(6)	(65)
Balance End of Period	4,956	5,703
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	362	(393)
Equity securities available for sale
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	0	0
Net Realized and Unrealized Gains (Losses) Included in Income	0	0
Other Comprehensive Income (Loss)	0	0
Purchases, Sales, Issues and Settlements, Net	1	0
Gross Transfers in, assets	0	0
Gross Transfers out, assets	(1)	0
Balance End of Period	0	0
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	0	0
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	0
Net Realized and Unrealized Gains (Losses) Included in Income	0	0
Other Comprehensive Income (Loss)	0	0
Purchases, Sales, Issues and Settlements, Net	1	0
Gross Transfers in, assets	0	0
Gross Transfers out, assets	(1)	0
Balance End of Period	0	0
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	0	0
Mortgage and other loans receivable
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	11	11
Net Realized and Unrealized Gains (Losses) Included in Income	0	0
Other Comprehensive Income (Loss)	0	0
Purchases, Sales, Issues and Settlements, Net	(6)	0
Gross Transfers in, assets	0	0
Gross Transfers out, assets	0	0
Balance End of Period	5	11
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	0
Other invested assets
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	204	332
Net Realized and Unrealized Gains (Losses) Included in Income	14	1
Other Comprehensive Income (Loss)	(6)	0
Purchases, Sales, Issues and Settlements, Net	39	(75)
Gross Transfers in, assets	0	0
Gross Transfers out, assets	(1)	(54)
Balance End of Period	250	204
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	6	8
Other equity securities
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	0	14
Net Realized and Unrealized Gains (Losses) Included in Income	0	0
Other Comprehensive Income (Loss)	0	0
Purchases, Sales, Issues and Settlements, Net	0	(14)
Gross Transfers in, assets	0	0
Gross Transfers out, assets	0	0
Balance End of Period	0	0
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	$ 0	$ 0