EQUITY (Details - Reclassification of significant items out of Accumulated other comprehensive income) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	$ 164	$ 119	$ 506	$ 160
Income (loss) from continuing operations before income tax expense (benefit)	368	1,260	(6,735)	4,251
Amount Reclassified from Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income (loss) from continuing operations before income tax expense (benefit)	164	119	506	160
Unrealized appreciation (depreciation) of fixed maturity securities on which allowance for credit losses were taken
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	3		0
Unrealized appreciation (depreciation) of fixed maturity securities on which allowance for credit losses were taken | Amount Reclassified from Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Investments	3	0	0	0
Total	3	0	0	0
Unrealized appreciation (depreciation) of fixed maturity securities on which other-than-temporary credit impairments were taken
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total		1		(3)
Unrealized appreciation (depreciation) of fixed maturity securities on which other-than-temporary credit impairments were taken | Amount Reclassified from Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Investments	0	1	0	(3)
Total	0	1	0	(3)
Unrealized appreciation (depreciation) of all other investments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	172	127	538	187
Unrealized appreciation (depreciation) of all other investments | Amount Reclassified from Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Investments	172	127	538	187
Total	172	127	538	187
Change in retirement plan liabilities adjustment
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	(11)	(9)	(32)	(24)
Change in retirement plan liabilities adjustment | Amount Reclassified from Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Prior-service credit	0	0	(1)	0
Actuarial gains (losses)	(11)	(9)	(31)	(24)
Total	$ (11)	$ (9)	$ (32)	$ (24)