INVESTMENTS (Details - Value of other securities measured at fair value based on election of the fair value option) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Schedule of Trading Securities and Other Trading Assets [Line Items]
Other Securities, Fair Value	$ 12,352	$ 12,668
Other Securities, Percent of Total	100.00%	100.00%
U.S. Government agency backed ABS
Schedule of Trading Securities and Other Trading Assets [Line Items]
Other Securities, Fair Value	$ 164	$ 178
Fixed maturity securities
Schedule of Trading Securities and Other Trading Assets [Line Items]
Other Securities, Fair Value	$ 11,511	$ 11,415
Other Securities, Percent of Total	93.00%	90.00%
Fixed maturity securities | U.S. government and government sponsored entities
Schedule of Trading Securities and Other Trading Assets [Line Items]
Other Securities, Fair Value	$ 2,780	$ 2,665
Other Securities, Percent of Total	23.00%	21.00%
Fixed maturity securities | Non-U.S. governments
Schedule of Trading Securities and Other Trading Assets [Line Items]
Other Securities, Fair Value	$ 51	$ 45
Other Securities, Percent of Total	0.00%	0.00%
Fixed maturity securities | Corporate debt
Schedule of Trading Securities and Other Trading Assets [Line Items]
Other Securities, Fair Value	$ 1,745	$ 1,671
Other Securities, Percent of Total	14.00%	13.00%
Fixed maturity securities | Mortgage-backed, asset-backed and collateralized
Schedule of Trading Securities and Other Trading Assets [Line Items]
Other Securities, Fair Value	$ 6,935	$ 7,034
Other Securities, Percent of Total	56.00%	56.00%
Fixed maturity securities | Residential mortgage-backed securities (RMBS)
Schedule of Trading Securities and Other Trading Assets [Line Items]
Other Securities, Fair Value	$ 1,757	$ 1,714
Other Securities, Percent of Total	14.00%	14.00%
Fixed maturity securities | Commercial mortgage-backed securities (CMBS)
Schedule of Trading Securities and Other Trading Assets [Line Items]
Other Securities, Fair Value	$ 399	$ 388
Other Securities, Percent of Total	3.00%	3.00%
Fixed maturity securities | Collateralized Debt Obligations/Asset-Backed Securities (CDO/ABS)
Schedule of Trading Securities and Other Trading Assets [Line Items]
Other Securities, Fair Value	$ 4,779	$ 4,932
Other Securities, Percent of Total	39.00%	39.00%
Equity securities
Schedule of Trading Securities and Other Trading Assets [Line Items]
Other Securities, Fair Value	$ 841	$ 1,253
Other Securities, Percent of Total	7.00%	10.00%