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FAIR VALUE MEASUREMENTS (Details - Quantitative Information About Level 3 Fair Value Measurements - Assets) - Level 3 - Fair Value by Liability Class [Domain]
$ in Millions
 6 Months Ended 12 Months Ended
Jun. 30, 2015
USD ($)
Dec. 31, 2014
USD ($)
Corporate debt    
Fair value inputs, assets, quantitative information    
Fair Value $ 1,519  
Corporate debt | Discounted cash flow    
Fair value inputs, assets, quantitative information    
Fair Value   $ 1,145
Corporate debt | Discounted cash flow | Minimum    
Fair value inputs, assets, quantitative information    
Yield 4.27% 3.46%
Corporate debt | Discounted cash flow | Maximum    
Fair value inputs, assets, quantitative information    
Yield 7.64% 8.75%
Corporate debt | Discounted cash flow | Weighted-average    
Fair value inputs, assets, quantitative information    
Yield 5.96% 6.10%
Residential mortgage backed securities    
Fair value inputs, assets, quantitative information    
Fair Value $ 17,727  
Residential mortgage backed securities | Discounted cash flow    
Fair value inputs, assets, quantitative information    
Fair Value   $ 17,353
Residential mortgage backed securities | Discounted cash flow | Minimum    
Fair value inputs, assets, quantitative information    
Yield 2.93% 2.67%
Constant prepayment rate 0.88% 0.59%
Loss severity 46.61% 46.04%
Constant default rate 3.54% 3.67%
Residential mortgage backed securities | Discounted cash flow | Maximum    
Fair value inputs, assets, quantitative information    
Yield 6.27% 6.64%
Constant prepayment rate 9.02% 9.35%
Loss severity 79.61% 79.56%
Constant default rate 8.93% 9.96%
Residential mortgage backed securities | Discounted cash flow | Weighted-average    
Fair value inputs, assets, quantitative information    
Yield 4.60% 4.65%
Constant prepayment rate 4.95% 4.97%
Loss severity 63.11% 62.80%
Constant default rate 6.23% 6.82%
Certain CDO/ABS    
Fair value inputs, assets, quantitative information    
Fair Value $ 3,819  
Certain CDO/ABS | Discounted cash flow    
Fair value inputs, assets, quantitative information    
Fair Value   $ 5,282
Certain CDO/ABS | Discounted cash flow | Minimum    
Fair value inputs, assets, quantitative information    
Yield 4.40% 4.70%
Constant prepayment rate 6.70% 6.40%
Loss severity 39.90% 42.90%
Constant default rate 2.50% 2.50%
Certain CDO/ABS | Discounted cash flow | Maximum    
Fair value inputs, assets, quantitative information    
Yield 8.20% 9.70%
Constant prepayment rate 13.10% 12.80%
Loss severity 55.20% 60.30%
Constant default rate 13.50% 14.70%
Certain CDO/ABS | Discounted cash flow | Weighted-average    
Fair value inputs, assets, quantitative information    
Yield 7.00% 7.10%
Constant prepayment rate 9.40% 9.20%
Loss severity 47.70% 51.90%
Constant default rate 7.30% 7.80%
Commercial mortgage backed securities    
Fair value inputs, assets, quantitative information    
Fair Value $ 2,638  
Commercial mortgage backed securities | Discounted cash flow    
Fair value inputs, assets, quantitative information    
Fair Value   $ 2,687
Commercial mortgage backed securities | Discounted cash flow | Minimum    
Fair value inputs, assets, quantitative information    
Yield 0.00% 0.00%
Commercial mortgage backed securities | Discounted cash flow | Maximum    
Fair value inputs, assets, quantitative information    
Yield 17.59% 17.29%
Commercial mortgage backed securities | Discounted cash flow | Weighted-average    
Fair value inputs, assets, quantitative information    
Yield 5.97% 6.06%
CDO/ABS - Direct Investment book    
Fair value inputs, assets, quantitative information    
Fair Value $ 0  
CDO/ABS - Direct Investment book | Binomial Expansion Technique    
Fair value inputs, assets, quantitative information    
Fair Value   $ 0
CDO/ABS - Direct Investment book | Binomial Expansion Technique | Minimum    
Fair value inputs, assets, quantitative information    
Recovery rates 0.00% 0.00%
Diversity score 0 0
Weighted average life   3 months
CDO/ABS - Direct Investment book | Binomial Expansion Technique | Maximum    
Fair value inputs, assets, quantitative information    
Recovery rates 0.00% 0.00%
Diversity score 0 0
Weighted average life   10 years 5 months 26 days
CDO/ABS - Direct Investment book | Binomial Expansion Technique | Weighted-average    
Fair value inputs, assets, quantitative information    
Recovery rates 0.00% 0.00%
Diversity score 0 0
Weighted average life   3 years 11 months 5 days
Obligations of states, municipalities and political subdivisions    
Fair value inputs, assets, quantitative information    
Fair Value $ 1,224  
Obligations of states, municipalities and political subdivisions | Discounted cash flow    
Fair value inputs, assets, quantitative information    
Fair Value   $ 1,178
Obligations of states, municipalities and political subdivisions | Discounted cash flow | Minimum    
Fair value inputs, assets, quantitative information    
Yield 4.32% 3.90%
Obligations of states, municipalities and political subdivisions | Discounted cash flow | Maximum    
Fair value inputs, assets, quantitative information    
Yield 5.14% 4.62%
Obligations of states, municipalities and political subdivisions | Discounted cash flow | Weighted-average    
Fair value inputs, assets, quantitative information    
Yield 4.73% 4.26%