EQUITY (Details - Reclassification of significant items out of Accumulated other comprehensive income) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	$ 969	$ 283	$ (163)
Income (loss) from continuing operations before income tax expense (benefit)	(7,293)	5,287	257
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)	969	283	(163)
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	(39)
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	(39)	0	0
Total	(39)	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		(4)	5
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	(4)	5
Total	0	(4)	5
Unrealized appreciation (depreciation) of all other investments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	1,053	324	(134)
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	1,053	324	(134)
Income (loss) from continuing operations before income tax expense (benefit)	1,053	324	(134)
Change in retirement plan liabilities adjustment
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	(45)	(37)	(34)
Change in retirement plan liabilities adjustment | Amount Reclassified from Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	(45)	(37)	(34)
Prior-Service Credit | Amount Reclassified from Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	(1)	0	1
Actuarial Gains (Losses) | Amount Reclassified from Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	$ (44)	$ (37)	$ (35)