FAIR VALUE MEASUREMENTS (Details - Quantitative Information about Level 3 Fair Value Measurements, Assets)) (Level 3, USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Corporate debt
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	1,145	788
Corporate debt | Discounted cash flow | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	3.46%	0.00%
Corporate debt | Discounted cash flow | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	8.75%	14.29%
Corporate debt | Discounted cash flow | Weighted-average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	6.10%	6.64%
Residential mortgage-backed securities
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	17,353	14,419
Residential mortgage-backed securities | Discounted cash flow | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	2.67%	2.54%
Constant prepayment rate	0.59%	0.00%
Loss severity	46.04%	42.60%
Constant default rate	3.67%	3.98%
Residential mortgage-backed securities | Discounted cash flow | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	6.64%	7.40%
Constant prepayment rate	9.35%	10.35%
Loss severity	79.56%	79.07%
Constant default rate	9.96%	12.22%
Residential mortgage-backed securities | Discounted cash flow | Weighted-average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	4.65%	4.97%
Constant prepayment rate	4.97%	4.97%
Loss severity	62.80%	60.84%
Constant default rate	6.82%	8.10%
Certain CDO/ABS
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	5,282	5,414
Certain CDO/ABS | Discounted cash flow | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	4.70%	5.20%
Constant prepayment rate	6.40%	5.20%
Loss severity	42.90%	48.60%
Constant default rate	2.50%	3.20%
Certain CDO/ABS | Discounted cash flow | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	9.70%	11.50%
Constant prepayment rate	12.80%	10.80%
Loss severity	60.30%	63.40%
Constant default rate	14.70%	16.20%
Certain CDO/ABS | Discounted cash flow | Weighted-average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	7.10%	9.40%
Constant prepayment rate	9.20%	8.20%
Loss severity	51.90%	56.40%
Constant default rate	7.80%	9.00%
Commercial mortgage backed securities
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	2,687	5,847
Commercial mortgage backed securities | Discounted cash flow | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	0.00%	0.00%
Commercial mortgage backed securities | Discounted cash flow | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	17.29%	14.69%
Commercial mortgage backed securities | Discounted cash flow | Weighted-average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	6.06%	5.58%
CDO/ABS - Direct Investment book
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	279	557
CDO/ABS - Direct Investment book | Binomial Expansion Technique (BET) | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Recovery rates	7.00%	6.00%
Diversity score	5	5
Weighted average life	0 years 3 months	1 year 0 months 25 days
CDO/ABS - Direct Investment book | Binomial Expansion Technique (BET) | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Recovery rates	36.00%	63.00%
Diversity score	27	35
Weighted average life	10 years 5 months 26 days	9 years 5 months 19 days
CDO/ABS - Direct Investment book | Binomial Expansion Technique (BET) | Weighted-average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Recovery rates	21.00%	25.00%
Diversity score	12	12
Weighted average life	3 years 11 months 5 days	4 years 10 months 10 days
Obligations of states, municipalities and political subdivisions
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	1,178	920
Obligations of states, municipalities and political subdivisions | Discounted cash flow | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	3.90%	4.94%
Obligations of states, municipalities and political subdivisions | Discounted cash flow | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	4.62%	5.86%
Obligations of states, municipalities and political subdivisions | Discounted cash flow | Weighted-average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	4.26%	5.40%