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INVESTMENTS (Details - Carrying values of other invested assets) - USD ($)
$ in Millions
96 Months Ended
Dec. 31, 2027
Dec. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Dec. 31, 2017
Investment [Line Items]          
Other invested assets       $ 19,739 $ 20,822
Hedge Funds          
Investment [Line Items]          
Hedge Fund Fair Value Redemption, Percentage   21.00% 52.00%    
Hedge Fund Fair Value Redemption, Additional Percentage 27.00%        
Alternative investments          
Investment [Line Items]          
Other invested assets       9,655 11,308
Alternative investments | Hedge Funds          
Investment [Line Items]          
Other invested assets       4,600 5,800
Alternative investments | Direct private equity          
Investment [Line Items]          
Other invested assets       4,600 5,000
Alternative investments | Affordable Housing Partnerships          
Investment [Line Items]          
Other invested assets       434 543
Investment real estate          
Investment [Line Items]          
Other invested assets       8,819 8,258
Net of accumulated depreciation on investment in real estate       553 515
All other investments          
Investment [Line Items]          
Other invested assets       $ 1,265 $ 1,256