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INVESTMENTS (Details - Amortized cost or cost and fair value of available for sale securities) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Schedule of Available-for-sale Securities [Line Items]    
Available for sale securities, Amortized Cost or Cost, Net of Allowance $ 259,210 $ 244,337
Available for sale securities, Allowance for Credit Losses (98) (186)
Available for sale securities, Fair Value [1] 277,202 271,496
Bonds available for sale    
Schedule of Available-for-sale Securities [Line Items]    
Available for sale securities, Amortized Cost or Cost, Net of Allowance 259,210 244,337
Available for sale securities, Allowance for Credit Losses (98) (186)
Available for sale securities, Gross Unrealized Gains 19,993 28,253
Available for sale securities, Gross Unrealized Losses (1,903) (908)
Available for sale securities, Fair Value 277,202 271,496
Other details of available for sale securities    
Available for sale securities not rated or rated below investment grade 27,000 28,200
Bonds available for sale | U.S. government and government sponsored entities    
Schedule of Available-for-sale Securities [Line Items]    
Available for sale securities, Amortized Cost or Cost, Net of Allowance 7,874 3,640
Available for sale securities, Allowance for Credit Losses 0 0
Available for sale securities, Gross Unrealized Gains 347 503
Available for sale securities, Gross Unrealized Losses (27) (17)
Available for sale securities, Fair Value 8,194 4,126
Bonds available for sale | Obligations of states, municipalities and political subdivisions    
Schedule of Available-for-sale Securities [Line Items]    
Available for sale securities, Amortized Cost or Cost, Net of Allowance 12,760 13,915
Available for sale securities, Allowance for Credit Losses 0 0
Available for sale securities, Gross Unrealized Gains 1,782 2,216
Available for sale securities, Gross Unrealized Losses (15) (7)
Available for sale securities, Fair Value 14,527 16,124
Bonds available for sale | Non-U.S. governments    
Schedule of Available-for-sale Securities [Line Items]    
Available for sale securities, Amortized Cost or Cost, Net of Allowance 15,858 14,231
Available for sale securities, Allowance for Credit Losses 0 (4)
Available for sale securities, Gross Unrealized Gains 719 1,181
Available for sale securities, Gross Unrealized Losses (247) (63)
Available for sale securities, Fair Value 16,330 15,345
Bonds available for sale | Corporate debt    
Schedule of Available-for-sale Securities [Line Items]    
Available for sale securities, Amortized Cost or Cost, Net of Allowance 163,064 150,111
Available for sale securities, Allowance for Credit Losses (89) (164)
Available for sale securities, Gross Unrealized Gains 13,892 19,905
Available for sale securities, Gross Unrealized Losses (1,259) (554)
Available for sale securities, Fair Value 175,608 169,298
Bonds available for sale | Mortgage-backed, asset-backed and collateralized    
Schedule of Available-for-sale Securities [Line Items]    
Available for sale securities, Amortized Cost or Cost, Net of Allowance 59,654 62,440
Available for sale securities, Allowance for Credit Losses (9) (18)
Available for sale securities, Gross Unrealized Gains 3,253 4,448
Available for sale securities, Gross Unrealized Losses (355) (267)
Available for sale securities, Fair Value 62,543 66,603
Bonds available for sale | Residential mortgage-backed securities (RMBS)    
Schedule of Available-for-sale Securities [Line Items]    
Available for sale securities, Amortized Cost or Cost, Net of Allowance 25,027 28,551
Available for sale securities, Allowance for Credit Losses (9) (16)
Available for sale securities, Gross Unrealized Gains 2,422 3,000
Available for sale securities, Gross Unrealized Losses (153) (70)
Available for sale securities, Fair Value 27,287 31,465
Bonds available for sale | Commercial mortgage-backed securities (CMBS)    
Schedule of Available-for-sale Securities [Line Items]    
Available for sale securities, Amortized Cost or Cost, Net of Allowance 15,333 15,182
Available for sale securities, Allowance for Credit Losses 0 (1)
Available for sale securities, Gross Unrealized Gains 555 1,023
Available for sale securities, Gross Unrealized Losses (79) (71)
Available for sale securities, Fair Value 15,809 16,133
Bonds available for sale | Collateralized Debt Obligations/Asset-Backed Securities (CDO/ABS)    
Schedule of Available-for-sale Securities [Line Items]    
Available for sale securities, Amortized Cost or Cost, Net of Allowance 19,294 18,707
Available for sale securities, Allowance for Credit Losses 0 (1)
Available for sale securities, Gross Unrealized Gains 276 425
Available for sale securities, Gross Unrealized Losses (123) (126)
Available for sale securities, Fair Value $ 19,447 $ 19,005
[1] See Note 9 for details of balances associated with variable interest entities.