FAIR VALUE MEASUREMENTS (Details - Quantitative Information about Level 3 Fair Value Measurements, Assets)) - Discounted cash flow - Level 3 - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Corporate debt
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	$ 625	$ 642
Corporate debt | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	2.90%	5.63%
Corporate debt | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	8.34%	12.45%
Corporate debt | Weighted-average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	5.62%	9.04%
Residential mortgage-backed securities
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	$ 17,369	$ 17,280
Residential mortgage-backed securities | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	2.79%	3.13%
Constant prepayment rate	1.37%	0.99%
Loss severity	49.30%	47.21%
Constant default rate	3.51%	3.49%
Residential mortgage-backed securities | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	5.53%	6.14%
Constant prepayment rate	8.78%	8.95%
Loss severity	80.09%	79.50%
Constant default rate	8.83%	9.04%
Residential mortgage-backed securities | Weighted-average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	4.16%	4.63%
Constant prepayment rate	5.07%	4.97%
Loss severity	64.69%	63.35%
Constant default rate	6.17%	6.26%
Certain CDO/ABS
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	$ 4,049	$ 3,338
Certain CDO/ABS | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	3.00%	3.41%
Certain CDO/ABS | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	5.34%	4.98%
Certain CDO/ABS | Weighted-average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	4.17%	4.19%
Commercial mortgage backed securities
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	$ 1,939	$ 2,388
Commercial mortgage backed securities | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	0.00%	0.00%
Commercial mortgage backed securities | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	13.78%	17.65%
Commercial mortgage backed securities | Weighted-average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	6.20%	6.62%
Obligations of states, municipalities and political subdivisions
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	$ 1,460	$ 1,217
Obligations of states, municipalities and political subdivisions | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	3.46%	4.32%
Obligations of states, municipalities and political subdivisions | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	4.29%	5.10%
Obligations of states, municipalities and political subdivisions | Weighted-average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	3.87%	4.71%