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INSURANCE LIABILITIES (Details - Policyholder contract deposits) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Policyholder Contract Deposits [Line Items]    
Total policyholder contract deposits $ 135,602 $ 132,216
Assumptions for liability for policyholder contract deposits    
Percentage of gross insurance in force 1.90%  
Percentage of gross premiums and other consideration 1.80%  
Maximum    
Assumptions for liability for policyholder contract deposits    
Withdrawal charges, high end of range (as a percent)   9.00%
Minimum    
Assumptions for liability for policyholder contract deposits    
Withdrawal charges, low end of range (as a percent)   0.20%
Fixed Annuities    
Policyholder Contract Deposits [Line Items]    
Total policyholder contract deposits $ 49,979 $ 51,278
Group Retirement    
Policyholder Contract Deposits [Line Items]    
Total policyholder contract deposits 40,422 39,578
Life insurance    
Policyholder Contract Deposits [Line Items]    
Total policyholder contract deposits 12,448 11,855
Variable and Index Annuities    
Policyholder Contract Deposits [Line Items]    
Total policyholder contract deposits 19,690 16,934
Institutional Markets    
Policyholder Contract Deposits [Line Items]    
Total policyholder contract deposits 8,077 7,286
Legacy Portfolio    
Policyholder Contract Deposits [Line Items]    
Total policyholder contract deposits $ 4,986 $ 5,285