DERIVATIVES AND HEDGE ACCOUNTING (Details - Notional amounts and fair values of derivative instruments) - USD ($)	Sep. 30, 2020	Dec. 31, 2019
Derivative [Line Items]
Gross Derivative Assets, Notional Amount	$ 156,872,000,000	$ 132,965,000,000
Gross Derivative Assets, Fair Value	7,613,000,000	5,026,000,000
Gross Derivative Liabilities, Notional Amount	54,904,000,000	61,482,000,000
Gross Derivative Liabilities, Fair Value	5,355,000,000	4,009,000,000
Derivative assets, Counterparty netting	(3,695,000,000)	(2,427,000,000)
Derivative assets, Cash collateral	(3,129,000,000)	(1,806,000,000)
Total derivative assets on consolidated balance sheet	789,000,000	793,000,000
Derivative liabilities, Counterparty netting	(3,695,000,000)	(2,427,000,000)
Derivative liabilities, Cash collateral	(1,060,000,000)	(527,000,000)
Total derivative liabilities on consolidated balance sheet	600,000,000	1,055,000,000
Bifurcated embedded derivatives
Derivative [Line Items]
Bifurcated embedded derivatives assets, fair value	0	0
Bifurcated embedded derivative liabilities, fair value	14,500,000,000	6,900,000,000
Derivatives designated as hedging instruments | Interest rate contracts
Derivative [Line Items]
Gross Derivative Assets, Notional Amount	690,000,000	495,000,000
Gross Derivative Assets, Fair Value	19,000,000	3,000,000
Gross Derivative Liabilities, Notional Amount	299,000,000	410,000,000
Gross Derivative Liabilities, Fair Value	13,000,000	7,000,000
Derivatives designated as hedging instruments | Foreign exchange contracts
Derivative [Line Items]
Gross Derivative Assets, Notional Amount	6,146,000,000	4,328,000,000
Gross Derivative Assets, Fair Value	494,000,000	342,000,000
Gross Derivative Liabilities, Notional Amount	3,910,000,000	5,230,000,000
Gross Derivative Liabilities, Fair Value	159,000,000	162,000,000
Derivatives not designated as hedging instruments | Interest rate contracts
Derivative [Line Items]
Gross Derivative Assets, Notional Amount	66,938,000,000	52,437,000,000
Gross Derivative Assets, Fair Value	5,035,000,000	3,197,000,000
Gross Derivative Liabilities, Notional Amount	39,057,000,000	35,231,000,000
Gross Derivative Liabilities, Fair Value	4,546,000,000	2,742,000,000
Derivatives not designated as hedging instruments | Foreign exchange contracts
Derivative [Line Items]
Gross Derivative Assets, Notional Amount	15,771,000,000	8,133,000,000
Gross Derivative Assets, Fair Value	1,094,000,000	698,000,000
Gross Derivative Liabilities, Notional Amount	6,345,000,000	12,093,000,000
Gross Derivative Liabilities, Fair Value	460,000,000	863,000,000
Derivatives not designated as hedging instruments | Equity contracts
Derivative [Line Items]
Gross Derivative Assets, Notional Amount	21,461,000,000	18,533,000,000
Gross Derivative Assets, Fair Value	957,000,000	769,000,000
Gross Derivative Liabilities, Notional Amount	4,268,000,000	7,539,000,000
Gross Derivative Liabilities, Fair Value	101,000,000	139,000,000
Derivatives not designated as hedging instruments | Credit contracts
Derivative [Line Items]
Gross Derivative Assets, Notional Amount	2,797,000,000	8,457,000,000
Gross Derivative Assets, Fair Value	1,000,000	3,000,000
Gross Derivative Liabilities, Notional Amount	970,000,000	923,000,000
Gross Derivative Liabilities, Fair Value	69,000,000	89,000,000
Derivatives not designated as hedging instruments | Credit contracts | CDS
Derivative [Line Items]
Gross Derivative Liabilities, Notional Amount	137,000,000	152,000,000
Gross Derivative Liabilities, Fair Value	45,000,000	48,000,000
Derivatives not designated as hedging instruments | Other contracts
Derivative [Line Items]
Gross Derivative Assets, Notional Amount	43,069,000,000	40,582,000,000
Gross Derivative Assets, Fair Value	13,000,000	14,000,000
Gross Derivative Liabilities, Notional Amount	55,000,000	56,000,000
Gross Derivative Liabilities, Fair Value	$ 7,000,000	$ 7,000,000