INSURANCE LIABILITIES (Details - Liability for Unpaid Losses and Loss Adjustment Expenses) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018	Jan. 20, 2017
Supplementary Insurance Information, by Segment [Line Items]
Collateral Held For Deductible Recoverable Amounts	$ 9,000		$ 9,000		$ 9,200
Reconciliation of activity in the Liability for unpaid claims and claims adjustment expense:
Liability for unpaid loss and loss adjustment expenses, beginning of year	82,496	$ 78,098	83,639	$ 78,393
Reinsurance recoverable, balance at the beginning of the year	(31,784)	(27,211)	(31,690)	(26,708)
Net Liability for unpaid loss and loss adjustment expenses, beginning of year	50,712	50,887	51,949	51,685
Losses and loss adjustment expenses incurred
Current year	4,795	4,452	9,600	9,130
Prior years, excluding discount and amortization of deferred gain	(132)	(26)	(147)	(65)
Prior years, discount charge (benefit)	244	9	741	(177)
Prior years, amortization of deferred gain on retroactive reinsurance	(56)	(69)	(142)	(108)
Total losses and loss adjustment expenses incurred	4,851	4,366	10,052	8,780
Losses and loss adjustment expenses paid
Current year	(1,148)	(910)	(1,492)	(1,520)
Prior years	(4,562)	(4,635)	(10,682)	(9,414)
Total losses and loss adjustment expenses paid	(5,710)	(5,545)	(12,174)	(10,934)
Other changes
Foreign exchange effect	(209)	(431)	7	(157)
Retroactive reinsurance adjustment (net of discount)	80	30	(110)	(67)
Total other changes	(129)	(401)	(103)	(224)
Net liability for unpaid losses and loss adjustment expenses, balance at end of year	49,724	49,307	49,724	49,307
Reinsurance recoverable, balance at the end of the year	31,333	27,406	31,333	27,406
Total, balance at the end of the year	81,057	76,713	81,057	76,713
U.S. Commercial long-tail exposures | NICO | Accident Years 2015 and Prior
Other changes
Discount on retroactive reinsurance	$ 6	$ 8	$ 15	$ 13
Risk Transferred - U.S. Commercial long-tail exposures for accident years 2015 and prior, percent						80.00%
Reinsurance Percent Ceded on Paid Losses Percent						80.00%
Ceded to NICO net paid losses in excess						$ 25,000
Ceded to NICO net paid losses in excess, aggregate limit						25,000
NICO's limit of liability under the contract						20,000
Consideration paid, including interest						$ 10,200