FAIR VALUE MEASUREMENTS (Details - Changes in Level 3 Recurring Fair Value Measurements) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	$ 33,782	$ 32,245	$ 33,610	$ 35,763
Net Realized and Unrealized Gains (Losses) Included in Income	271	342	988	1,020
Other Comprehensive Income (Loss)	201	(88)	843	(299)
Purchases, Sales, Issuances and Settlements, Net	(1,373)	(766)	(2,724)	(3,451)
Gross Transfers In, assets	142	1,817	1,441	2,441
Gross Transfers Out, assets	(608)	(91)	(1,743)	(2,015)
Acquisitions		180		180
Balance End of Period	32,415	33,639	32,415	33,639
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	32	(39)	142	382
Liabilities
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	6,130	3,710	4,269	4,323
Net realized and unrealized gains and losses related to Level 3 items, liabilities	835	(281)	2,287	(1,070)
Other Comprehensive Income (Loss)	0	0	0	0
Purchases, Sales, Issuances and Settlements, Net	194	85	603	259
Gross Transfers In, liabilities	0	0	0	0
Gross Transfers Out, liabilities	0	0	0	2
Acquisitions, Liabilities		0		0
Balance at the End of the Period	7,159	3,514	7,159	3,514
Changes in Unrealized Gains (Losses) Included in Income on Instruments Held at End of Year, liabilities	(675)	209	(1,961)	1,148
Policyholder contract deposits
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	6,065	3,534	4,116	4,136
Net realized and unrealized gains and losses related to Level 3 items, liabilities	861	(242)	2,400	(986)
Other Comprehensive Income (Loss)	0	0	0	0
Purchases, Sales, Issuances and Settlements, Net	240	84	650	226
Gross Transfers In, liabilities	0	0	0	0
Gross Transfers Out, liabilities	0	0	0	0
Acquisitions, Liabilities		0		0
Balance at the End of the Period	7,166	3,376	7,166	3,376
Changes in Unrealized Gains (Losses) Included in Income on Instruments Held at End of Year, liabilities	(691)	179	(2,044)	1,081
Derivative liabilities, net
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	65	176	153	187
Net realized and unrealized gains and losses related to Level 3 items, liabilities	(26)	(39)	(113)	(84)
Other Comprehensive Income (Loss)	0	0	0	0
Purchases, Sales, Issuances and Settlements, Net	(46)	1	(47)	33
Gross Transfers In, liabilities	0	0	0	0
Gross Transfers Out, liabilities	0	0	0	2
Acquisitions, Liabilities		0		0
Balance at the End of the Period	(7)	138	(7)	138
Changes in Unrealized Gains (Losses) Included in Income on Instruments Held at End of Year, liabilities	16	30	83	67
Interest rate contracts
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	16	14	15	22
Net realized and unrealized gains and losses related to Level 3 items, liabilities	(3)	(1)	0	(5)
Other Comprehensive Income (Loss)	0	0	0	0
Purchases, Sales, Issuances and Settlements, Net	(13)	(1)	(15)	(5)
Gross Transfers In, liabilities	0	0	0	0
Gross Transfers Out, liabilities	0	0	0	0
Acquisitions, Liabilities		0		0
Balance at the End of the Period	0	12	0	12
Changes in Unrealized Gains (Losses) Included in Income on Instruments Held at End of Year, liabilities	0	1	1	5
Foreign exchange contracts
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	(4)	5	(5)	0
Net realized and unrealized gains and losses related to Level 3 items, liabilities	6	2	(4)	(2)
Other Comprehensive Income (Loss)	0	0	0	0
Purchases, Sales, Issuances and Settlements, Net	(3)	(2)	8	7
Gross Transfers In, liabilities	0	0	0	0
Gross Transfers Out, liabilities	0	0	0	0
Acquisitions, Liabilities		0		0
Balance at the End of the Period	(1)	5	(1)	5
Changes in Unrealized Gains (Losses) Included in Income on Instruments Held at End of Year, liabilities	0	(5)	0	(5)
Equity contracts
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	(113)	(79)	(75)	(82)
Net realized and unrealized gains and losses related to Level 3 items, liabilities	12	(12)	(8)	(3)
Other Comprehensive Income (Loss)	0	0	0	0
Purchases, Sales, Issuances and Settlements, Net	0	(12)	(18)	(20)
Gross Transfers In, liabilities	0	0	0	0
Gross Transfers Out, liabilities	0	0	0	2
Acquisitions, Liabilities		0		0
Balance at the End of the Period	(101)	(103)	(101)	(103)
Changes in Unrealized Gains (Losses) Included in Income on Instruments Held at End of Year, liabilities	(13)	10	19	2
Credit contracts
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	173	246	227	262
Net realized and unrealized gains and losses related to Level 3 items, liabilities	(24)	(9)	(51)	(23)
Other Comprehensive Income (Loss)	0	0	0	0
Purchases, Sales, Issuances and Settlements, Net	(47)	(1)	(74)	(3)
Gross Transfers In, liabilities	0	0	0	0
Gross Transfers Out, liabilities	0	0	0	0
Acquisitions, Liabilities		0		0
Balance at the End of the Period	102	236	102	236
Changes in Unrealized Gains (Losses) Included in Income on Instruments Held at End of Year, liabilities	14	10	13	23
Other contracts
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	(7)	(10)	(9)	(15)
Net realized and unrealized gains and losses related to Level 3 items, liabilities	(17)	(19)	(50)	(51)
Other Comprehensive Income (Loss)	0	0	0	0
Purchases, Sales, Issuances and Settlements, Net	17	17	52	54
Gross Transfers In, liabilities	0	0	0	0
Gross Transfers Out, liabilities	0	0	0	0
Acquisitions, Liabilities		0		0
Balance at the End of the Period	(7)	(12)	(7)	(12)
Changes in Unrealized Gains (Losses) Included in Income on Instruments Held at End of Year, liabilities	15	14	50	42
Bonds available for sale
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	28,013	25,778	27,093	28,996
Net Realized and Unrealized Gains (Losses) Included in Income	140	249	591	619
Other Comprehensive Income (Loss)	201	(88)	842	(300)
Purchases, Sales, Issuances and Settlements, Net	(946)	(447)	(1,390)	(2,531)
Gross Transfers In, assets	140	1,763	1,439	2,386
Gross Transfers Out, assets	(604)	(91)	(1,631)	(2,006)
Acquisitions		172		172
Balance End of Period	26,944	27,336	26,944	27,336
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	0	0	0	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	2,162	2,056	2,000	2,404
Net Realized and Unrealized Gains (Losses) Included in Income	(1)	0	(2)	1
Other Comprehensive Income (Loss)	119	(37)	321	(152)
Purchases, Sales, Issuances and Settlements, Net	92	(46)	178	(144)
Gross Transfers In, assets	0	54	35	54
Gross Transfers Out, assets	(265)	(31)	(425)	(167)
Acquisitions		0		0
Balance End of Period	2,107	1,996	2,107	1,996
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	0	0	0	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	2	0	11	8
Net Realized and Unrealized Gains (Losses) Included in Income	6	0	5	(5)
Other Comprehensive Income (Loss)	0	(1)	0	5
Purchases, Sales, Issuances and Settlements, Net	0	1	(4)	(3)
Gross Transfers In, assets	5	4	5	4
Gross Transfers Out, assets	0	0	(4)	(5)
Acquisitions		0		0
Balance End of Period	13	4	13	4
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	0	0	0	0
Bonds available for sale | Corporate debt
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	1,821	884	864	1,173
Net Realized and Unrealized Gains (Losses) Included in Income	(36)	7	(10)	(58)
Other Comprehensive Income (Loss)	(2)	(10)	79	(7)
Purchases, Sales, Issuances and Settlements, Net	(535)	(28)	(600)	(174)
Gross Transfers In, assets	112	133	1,155	701
Gross Transfers Out, assets	(85)	(44)	(213)	(693)
Acquisitions		0		0
Balance End of Period	1,275	942	1,275	942
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	0	0	0	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	13,863	15,377	14,199	16,136
Net Realized and Unrealized Gains (Losses) Included in Income	166	213	575	632
Other Comprehensive Income (Loss)	15	5	176	5
Purchases, Sales, Issuances and Settlements, Net	(418)	(725)	(1,234)	(1,877)
Gross Transfers In, assets	16	0	83	8
Gross Transfers Out, assets	(82)	(16)	(239)	(50)
Acquisitions		7		7
Balance End of Period	13,560	14,861	13,560	14,861
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	0	0	0	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	1,103	605	917	624
Net Realized and Unrealized Gains (Losses) Included in Income	2	14	8	18
Other Comprehensive Income (Loss)	32	(14)	62	(35)
Purchases, Sales, Issuances and Settlements, Net	85	31	381	1
Gross Transfers In, assets	0	64	58	111
Gross Transfers Out, assets	(172)	0	(376)	(19)
Acquisitions		1		1
Balance End of Period	1,050	701	1,050	701
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	0	0	0	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	9,062	6,856	9,102	8,651
Net Realized and Unrealized Gains (Losses) Included in Income	3	15	15	31
Other Comprehensive Income (Loss)	37	(31)	204	(116)
Purchases, Sales, Issuances and Settlements, Net	(170)	320	(111)	(334)
Gross Transfers In, assets	7	1,508	103	1,508
Gross Transfers Out, assets	0	0	(374)	(1,072)
Acquisitions		164		164
Balance End of Period	8,939	8,832	8,939	8,832
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	0	0	0	0
Other bond securities
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	5,068	6,068	5,845	6,512
Net Realized and Unrealized Gains (Losses) Included in Income	125	92	373	351
Other Comprehensive Income (Loss)	0	0	0	0
Purchases, Sales, Issuances and Settlements, Net	(375)	(342)	(1,293)	(1,037)
Gross Transfers In, assets	0	54	0	55
Gross Transfers Out, assets	(4)	0	(111)	(9)
Acquisitions		8		8
Balance End of Period	4,814	5,880	4,814	5,880
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	27	(39)	113	326
Other bond securities | Corporate debt
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	0	18	0	18
Net Realized and Unrealized Gains (Losses) Included in Income	0	0	0	0
Other Comprehensive Income (Loss)	0	0	0	0
Purchases, Sales, Issuances and Settlements, Net	0	(18)	0	(18)
Gross Transfers In, assets	0	0	0	0
Gross Transfers Out, assets	0	0	0	0
Acquisitions		0		0
Balance End of Period	0	0	0	0
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	0	(2)	0	(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	830	1,338	1,290	1,464
Net Realized and Unrealized Gains (Losses) Included in Income	9	18	69	73
Other Comprehensive Income (Loss)	0	0	0	0
Purchases, Sales, Issuances and Settlements, Net	(24)	(57)	(544)	(238)
Gross Transfers In, assets	0	50	0	50
Gross Transfers Out, assets	0	0	0	0
Acquisitions		0		0
Balance End of Period	815	1,349	815	1,349
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	1	(29)	(18)	124
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	88	71	77	74
Net Realized and Unrealized Gains (Losses) Included in Income	1	(2)	5	(5)
Other Comprehensive Income (Loss)	0	0	0	0
Purchases, Sales, Issuances and Settlements, Net	(17)	0	0	(1)
Gross Transfers In, assets	0	4	0	5
Gross Transfers Out, assets	(4)	0	(14)	0
Acquisitions		0		0
Balance End of Period	68	73	68	73
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	(2)	(2)	3	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	4,150	4,641	4,478	4,956
Net Realized and Unrealized Gains (Losses) Included in Income	115	76	299	283
Other Comprehensive Income (Loss)	0	0	0	0
Purchases, Sales, Issuances and Settlements, Net	(334)	(267)	(749)	(780)
Gross Transfers In, assets	0	0	0	0
Gross Transfers Out, assets	0	0	(97)	(9)
Acquisitions		8		8
Balance End of Period	3,931	4,458	3,931	4,458
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	28	(6)	128	201
Equity securities
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	35	0	27	0
Net Realized and Unrealized Gains (Losses) Included in Income	0	1	0	(2)
Other Comprehensive Income (Loss)	0	0	0	0
Purchases, Sales, Issuances and Settlements, Net	(29)	24	(20)	27
Gross Transfers In, assets	2	0	2	0
Gross Transfers Out, assets	0	0	(1)	0
Acquisitions		0		0
Balance End of Period	8	25	8	25
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	(2)	0	2	0
Mortgage and other loans receivable
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	0	0	0	5
Net Realized and Unrealized Gains (Losses) Included in Income	0	0	0	0
Other Comprehensive Income (Loss)	0	0	0	0
Purchases, Sales, Issuances and Settlements, Net	0	0	0	(5)
Gross Transfers In, assets	0	0	0	0
Gross Transfers Out, assets	0	0	0	0
Acquisitions		0		0
Balance End of Period	0	0	0	0
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	0	0	0	0
Other invested assets
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	605	399	587	250
Net Realized and Unrealized Gains (Losses) Included in Income	6	0	24	52
Other Comprehensive Income (Loss)	0	0	1	1
Purchases, Sales, Issuances and Settlements, Net	(22)	(1)	(23)	95
Gross Transfers In, assets	0	0	0	0
Gross Transfers Out, assets	0	0	0	0
Acquisitions		0		0
Balance End of Period	589	398	589	398
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	7	0	27	56
Other assets
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	61		58
Net Realized and Unrealized Gains (Losses) Included in Income	0		0
Other Comprehensive Income (Loss)	0		0
Purchases, Sales, Issuances and Settlements, Net	(1)	$ 0	2	$ 0
Gross Transfers In, assets	0		0
Gross Transfers Out, assets	0		0
Balance End of Period	60		60
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	$ 0		$ 0