INVESTMENTS (Details - Securities available for sale in a loss position) - Bonds available for sale $ in Millions	Jun. 30, 2020 USD ($) security	Dec. 31, 2019 USD ($) security
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Fair Value, Less than 12 Months	$ 39,164	$ 24,331
Gross Unrealized Losses, Less than 12 Months	1,684	493
Fair Value, 12 Months or More	4,842	7,362
Gross Unrealized Losses, 12 Months or More	445	322
Fair Value, Total	44,006	31,693
Gross Unrealized Losses, Total	$ 2,129	$ 815
Number of securities in an unrealized loss position \| security	8,189	5,695
Number of individual securities in continuous unrealized loss position for longer than twelve months \| security	967	1,254
U.S. government and government sponsored entities
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Fair Value, Less than 12 Months	$ 129	$ 1,461
Gross Unrealized Losses, Less than 12 Months	16	44
Fair Value, 12 Months or More	0	63
Gross Unrealized Losses, 12 Months or More	0	0
Fair Value, Total	129	1,524
Gross Unrealized Losses, Total	16	44
Obligations of states, municipalities and political subdivisions
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Fair Value, Less than 12 Months	337	672
Gross Unrealized Losses, Less than 12 Months	14	21
Fair Value, 12 Months or More	112	246
Gross Unrealized Losses, 12 Months or More	6	11
Fair Value, Total	449	918
Gross Unrealized Losses, Total	20	32
Non-U.S. governments
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Fair Value, Less than 12 Months	1,649	1,105
Gross Unrealized Losses, Less than 12 Months	52	12
Fair Value, 12 Months or More	207	343
Gross Unrealized Losses, 12 Months or More	47	45
Fair Value, Total	1,856	1,448
Gross Unrealized Losses, Total	99	57
Corporate debt
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Fair Value, Less than 12 Months	22,363	11,868
Gross Unrealized Losses, Less than 12 Months	1,109	319
Fair Value, 12 Months or More	1,083	2,405
Gross Unrealized Losses, 12 Months or More	222	181
Fair Value, Total	23,446	14,273
Gross Unrealized Losses, Total	1,331	500
Residential mortgage-backed securities (RMBS)
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Fair Value, Less than 12 Months	3,927	3,428
Gross Unrealized Losses, Less than 12 Months	77	28
Fair Value, 12 Months or More	256	1,367
Gross Unrealized Losses, 12 Months or More	26	36
Fair Value, Total	4,183	4,795
Gross Unrealized Losses, Total	103	64
Commercial mortgage-backed securities (CMBS)
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Fair Value, Less than 12 Months	2,588	1,877
Gross Unrealized Losses, Less than 12 Months	128	16
Fair Value, 12 Months or More	98	367
Gross Unrealized Losses, 12 Months or More	8	9
Fair Value, Total	2,686	2,244
Gross Unrealized Losses, Total	136	25
Collateralized Debt Obligations/Asset-Backed Securities (CDO/ABS)
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Fair Value, Less than 12 Months	8,171	3,920
Gross Unrealized Losses, Less than 12 Months	288	53
Fair Value, 12 Months or More	3,086	2,571
Gross Unrealized Losses, 12 Months or More	136	40
Fair Value, Total	11,257	6,491
Gross Unrealized Losses, Total	$ 424	$ 93

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Number of investment positions in available-for-sale investments in a continuous unrealized loss position for which an other-than-temporary impairment (OTTI) has not been recognized in the income statement.

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Number of investment positions in available-for-sale investments that have been in a continuous unrealized loss position for greater than or equal to a year for which an other-than-temporary impairment (OTTI) has not been recognized in the income statement.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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