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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details - Other significant accounting policies) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Summary of Significant Accounting Policies [Line Items]      
Cumulative effect of change in accounting principle     $ (8)
Earning pattern of a quota share reinsurance contract 24 months    
Premiums and other receivables      
Allowance for doubtful accounts on premiums and other receivables $ 178 $ 216  
Accumulated Other Comprehensive Income (Loss)      
Summary of Significant Accounting Policies [Line Items]      
Cumulative effect of change in accounting principle     (576)
Retained Earnings      
Summary of Significant Accounting Policies [Line Items]      
Cumulative effect of change in accounting principle     $ 568
Accounting Standards Update - Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income | Accumulated Other Comprehensive Income (Loss)      
Summary of Significant Accounting Policies [Line Items]      
Cumulative effect of change in accounting principle   248  
Accounting Standards Update - Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income | Retained Earnings      
Summary of Significant Accounting Policies [Line Items]      
Cumulative effect of change in accounting principle   $ (248)