FAIR VALUE MEASUREMENTS (Details - Changes in Level 3 Recurring Fair Value Measurements) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	$ 33,610	$ 35,763
Net Realized and Unrealized Gains (Losses) Included in Income	317	371
Other Comprehensive Income (Loss)	230	(160)
Purchases, Sales, Issuances and Settlements, Net	(491)	(1,410)
Gross Transfers In, assets	798	566
Gross Transfers Out, assets	(741)	(130)
Balance End of Period	33,723	35,000
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	29	90
Liabilities
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	4,269	4,323
Net realized and unrealized gains and losses related to Level 3 items, liabilities	529	(542)
Other Comprehensive Income (Loss)	0	0
Purchases, Sales, Issuances and Settlements, Net	212	93
Gross Transfers In, liabilities	0	0
Gross Transfers Out, liabilities	0	0
Balance at the End of the Period	5,010	3,874
Changes in Unrealized Gains (Losses) Included in Income on Instruments Held at End of Year, liabilities	(483)	633
Policyholder contract deposits
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	4,116	4,136
Net realized and unrealized gains and losses related to Level 3 items, liabilities	569	(506)
Other Comprehensive Income (Loss)	0	0
Purchases, Sales, Issuances and Settlements, Net	193	66
Gross Transfers In, liabilities	0	0
Gross Transfers Out, liabilities	0	0
Balance at the End of the Period	4,878	3,696
Changes in Unrealized Gains (Losses) Included in Income on Instruments Held at End of Year, liabilities	(521)	604
Derivative liabilities, net
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	153	187
Net realized and unrealized gains and losses related to Level 3 items, liabilities	(40)	(36)
Other Comprehensive Income (Loss)	0	0
Purchases, Sales, Issuances and Settlements, Net	19	27
Gross Transfers In, liabilities	0	0
Gross Transfers Out, liabilities	0	0
Balance at the End of the Period	132	178
Changes in Unrealized Gains (Losses) Included in Income on Instruments Held at End of Year, liabilities	38	29
Interest rate contracts
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	15	22
Net realized and unrealized gains and losses related to Level 3 items, liabilities	1	(3)
Other Comprehensive Income (Loss)	0	0
Purchases, Sales, Issuances and Settlements, Net	(1)	(2)
Gross Transfers In, liabilities	0	0
Gross Transfers Out, liabilities	0	0
Balance at the End of the Period	15	17
Changes in Unrealized Gains (Losses) Included in Income on Instruments Held at End of Year, liabilities	(1)	3
Foreign exchange contracts
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	(5)	0
Net realized and unrealized gains and losses related to Level 3 items, liabilities	(5)	(10)
Other Comprehensive Income (Loss)	0	0
Purchases, Sales, Issuances and Settlements, Net	9	11
Gross Transfers In, liabilities	0	0
Gross Transfers Out, liabilities	0	0
Balance at the End of the Period	(1)	1
Changes in Unrealized Gains (Losses) Included in Income on Instruments Held at End of Year, liabilities	(1)	3
Equity contracts
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	(75)	(82)
Net realized and unrealized gains and losses related to Level 3 items, liabilities	(16)	4
Other Comprehensive Income (Loss)	0	0
Purchases, Sales, Issuances and Settlements, Net	(5)	0
Gross Transfers In, liabilities	0	0
Gross Transfers Out, liabilities	0	0
Balance at the End of the Period	(96)	(78)
Changes in Unrealized Gains (Losses) Included in Income on Instruments Held at End of Year, liabilities	19	(4)
Credit contracts
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	227	262
Net realized and unrealized gains and losses related to Level 3 items, liabilities	(3)	(10)
Other Comprehensive Income (Loss)	0	0
Purchases, Sales, Issuances and Settlements, Net	(2)	(2)
Gross Transfers In, liabilities	0	0
Gross Transfers Out, liabilities	0	0
Balance at the End of the Period	222	250
Changes in Unrealized Gains (Losses) Included in Income on Instruments Held at End of Year, liabilities	4	10
Other contracts
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance at the Beginning of the Period	(9)	(15)
Net realized and unrealized gains and losses related to Level 3 items, liabilities	(17)	(17)
Other Comprehensive Income (Loss)	0	0
Purchases, Sales, Issuances and Settlements, Net	18	20
Gross Transfers In, liabilities	0	0
Gross Transfers Out, liabilities	0	0
Balance at the End of the Period	(8)	(12)
Changes in Unrealized Gains (Losses) Included in Income on Instruments Held at End of Year, liabilities	17	17
Bonds available for sale
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	27,093	28,996
Net Realized and Unrealized Gains (Losses) Included in Income	228	220
Other Comprehensive Income (Loss)	230	(161)
Purchases, Sales, Issuances and Settlements, Net	(257)	(1,089)
Gross Transfers In, assets	798	565
Gross Transfers Out, assets	(644)	(121)
Balance End of Period	27,448	28,410
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	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	2,000	2,404
Net Realized and Unrealized Gains (Losses) Included in Income	(1)	1
Other Comprehensive Income (Loss)	97	(75)
Purchases, Sales, Issuances and Settlements, Net	24	(69)
Gross Transfers In, assets	29	0
Gross Transfers Out, assets	(13)	0
Balance End of Period	2,136	2,261
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	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	11	8
Net Realized and Unrealized Gains (Losses) Included in Income	0	(4)
Other Comprehensive Income (Loss)	0	4
Purchases, Sales, Issuances and Settlements, Net	(4)	1
Gross Transfers In, assets	0	0
Gross Transfers Out, assets	(4)	0
Balance End of Period	3	9
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	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	864	1,173
Net Realized and Unrealized Gains (Losses) Included in Income	(3)	(57)
Other Comprehensive Income (Loss)	38	10
Purchases, Sales, Issuances and Settlements, Net	34	248
Gross Transfers In, assets	654	565
Gross Transfers Out, assets	(55)	(68)
Balance End of Period	1,532	1,871
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	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	14,199	16,136
Net Realized and Unrealized Gains (Losses) Included in Income	227	266
Other Comprehensive Income (Loss)	24	5
Purchases, Sales, Issuances and Settlements, Net	(412)	(536)
Gross Transfers In, assets	23	0
Gross Transfers Out, assets	(16)	(32)
Balance End of Period	14,045	15,839
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	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	917	624
Net Realized and Unrealized Gains (Losses) Included in Income	1	6
Other Comprehensive Income (Loss)	17	(17)
Purchases, Sales, Issuances and Settlements, Net	146	(23)
Gross Transfers In, assets	0	0
Gross Transfers Out, assets	(189)	(6)
Balance End of Period	892	584
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	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	9,102	8,651
Net Realized and Unrealized Gains (Losses) Included in Income	4	8
Other Comprehensive Income (Loss)	54	(88)
Purchases, Sales, Issuances and Settlements, Net	(45)	(710)
Gross Transfers In, assets	92	0
Gross Transfers Out, assets	(367)	(15)
Balance End of Period	8,840	7,846
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	0	0
Other bond securities
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	5,845	6,512
Net Realized and Unrealized Gains (Losses) Included in Income	89	128
Other Comprehensive Income (Loss)	0	0
Purchases, Sales, Issuances and Settlements, Net	(239)	(337)
Gross Transfers In, assets	0	1
Gross Transfers Out, assets	(96)	(9)
Balance End of Period	5,599	6,295
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	27	58
Other bond securities | Corporate debt
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	0	18
Net Realized and Unrealized Gains (Losses) Included in Income	0	1
Other Comprehensive Income (Loss)	0	0
Purchases, Sales, Issuances and Settlements, Net	0	0
Gross Transfers In, assets	0	0
Gross Transfers Out, assets	0	0
Balance End of Period	0	19
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	0	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	1,290	1,464
Net Realized and Unrealized Gains (Losses) Included in Income	17	39
Other Comprehensive Income (Loss)	0	0
Purchases, Sales, Issuances and Settlements, Net	(41)	(76)
Gross Transfers In, assets	0	0
Gross Transfers Out, assets	0	0
Balance End of Period	1,266	1,427
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	0	51
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	77	74
Net Realized and Unrealized Gains (Losses) Included in Income	4	(1)
Other Comprehensive Income (Loss)	0	0
Purchases, Sales, Issuances and Settlements, Net	3	(1)
Gross Transfers In, assets	0	1
Gross Transfers Out, assets	0	0
Balance End of Period	84	73
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	3	(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	4,478	4,956
Net Realized and Unrealized Gains (Losses) Included in Income	68	89
Other Comprehensive Income (Loss)	0	0
Purchases, Sales, Issuances and Settlements, Net	(201)	(260)
Gross Transfers In, assets	0	0
Gross Transfers Out, assets	(96)	(9)
Balance End of Period	4,249	4,776
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	24	8
Equity securities
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	27	0
Net Realized and Unrealized Gains (Losses) Included in Income	0	0
Other Comprehensive Income (Loss)	0	0
Purchases, Sales, Issuances and Settlements, Net	0	3
Gross Transfers In, assets	0	0
Gross Transfers Out, assets	(1)	0
Balance End of Period	26	3
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	0	2
Mortgage and other loans receivable
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	0	5
Net Realized and Unrealized Gains (Losses) Included in Income	0	0
Other Comprehensive Income (Loss)	0	0
Purchases, Sales, Issuances and Settlements, Net	0	(5)
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
Other invested assets
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	587	250
Net Realized and Unrealized Gains (Losses) Included in Income	0	23
Other Comprehensive Income (Loss)	0	1
Purchases, Sales, Issuances and Settlements, Net	4	18
Gross Transfers In, assets	0	0
Gross Transfers Out, assets	0	0
Balance End of Period	591	292
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	2	$ 30
Other assets
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation calculation
Balance Beginning of Period	58
Net Realized and Unrealized Gains (Losses) Included in Income	0
Other Comprehensive Income (Loss)	0
Purchases, Sales, Issuances and Settlements, Net	1
Gross Transfers In, assets	0
Gross Transfers Out, assets	0
Balance End of Period	59
Changes in Unrealized Gains (Losses) on Instruments Held at End of Period, assets	$ 0