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INSURANCE LIABILITIES (Details - Discounting of Reserves) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Discounting of Reserves [Line Items]      
Workers Compensation Tabular Discount Amount $ 260 $ 285  
Workers Compensation Non Tabular Discount Amount 616 440  
U.S. Workers' compensation 1,829 1,636  
Retroactive Reinsurance (953) (911)  
Total reserve discount 876 725  
Current accident year 62 71 $ 108
Accretion and other adjustments to prior year discount (88) (180) (316)
Effect of interest rate changes 219 (407) (747)
Net loss reserve discount benefit (charge) 193 (516) (955)
Change in discount on loss reserves ceded under retroactive reinsurance (42) 340 469
Net change in total reserve discount $ 151 (176) (486)
Maximum [Member]      
Discounting of Reserves [Line Items]      
Tabular Discount Rate 45.00%    
Fortitude [Member]      
Discounting of Reserves [Line Items]      
Total reserve discount $ 500 493  
Percent of discount ceded on sale 100.00%    
North America Commercial Insurance      
Discounting of Reserves [Line Items]      
U.S. Workers' compensation $ 1,829 1,636  
Retroactive Reinsurance (953) (911)  
Total reserve discount 876 725  
Current accident year 62 71 108
Accretion and other adjustments to prior year discount (88) (162) (229)
Effect of interest rate changes 219 (407) (527)
Net loss reserve discount benefit (charge) 193 (498) (648)
Change in discount on loss reserves ceded under retroactive reinsurance (42) 340 469
Net change in total reserve discount 151 (158) (179)
Other Operations Run-Off      
Discounting of Reserves [Line Items]      
U.S. Workers' compensation 0 0  
Retroactive Reinsurance 0 0  
Total reserve discount 0 0  
Current accident year 0 0 0
Accretion and other adjustments to prior year discount 0 (18) (87)
Effect of interest rate changes 0 0 (220)
Net loss reserve discount benefit (charge) 0 (18) (307)
Change in discount on loss reserves ceded under retroactive reinsurance 0 0 0
Net change in total reserve discount $ 0 (18) (307)
New York      
Discounting of Reserves [Line Items]      
Nontabular discount rate 5.00%    
Tabular Discount Rate 5.00%    
United Kingdom      
Discounting of Reserves [Line Items]      
Total reserve discount $ 116 151  
Net change in total reserve discount $ (35) $ (20) $ 9