FAIR VALUE MEASUREMENTS (Details 6) (Level 3, USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2012
Corporate debt | Discounted cash flow
Fair value inputs, assets, quantitative information
Fair Value	826
Corporate debt | Discounted cash flow | Minimum
Fair value inputs, assets, quantitative information
Yield	1.85%
Corporate debt | Discounted cash flow | Maximum
Fair value inputs, assets, quantitative information
Yield	8.95%
Corporate debt | Discounted cash flow | Weighted-average
Fair value inputs, assets, quantitative information
Yield	5.40%
Residential mortgage backed securities | Discounted cash flow
Fair value inputs, assets, quantitative information
Fair Value	10,867
Residential mortgage backed securities | Discounted cash flow | Minimum
Fair value inputs, assets, quantitative information
Yield	2.69%
Constant prepayment rate	0.00%
Loss severity	40.07%
Constant default rate	3.61%
Residential mortgage backed securities | Discounted cash flow | Maximum
Fair value inputs, assets, quantitative information
Yield	9.53%
Constant prepayment rate	10.58%
Loss severity	78.97%
Constant default rate	13.01%
Residential mortgage backed securities | Discounted cash flow | Weighted-average
Fair value inputs, assets, quantitative information
Yield	6.11%
Constant prepayment rate	4.99%
Loss severity	59.52%
Constant default rate	8.31%
Certain CDO/ABS | Discounted cash flow
Fair value inputs, assets, quantitative information
Fair Value	1,866
Certain CDO/ABS | Discounted cash flow | Minimum
Fair value inputs, assets, quantitative information
Yield	0.84%
Constant prepayment rate	0.00%
Loss severity	0.00%
Constant default rate	0.00%
Certain CDO/ABS | Discounted cash flow | Maximum
Fair value inputs, assets, quantitative information
Yield	4.85%
Constant prepayment rate	39.55%
Loss severity	9.20%
Constant default rate	1.19%
Certain CDO/ABS | Discounted cash flow | Weighted-average
Fair value inputs, assets, quantitative information
Yield	2.85%
Constant prepayment rate	12.87%
Loss severity	0.78%
Constant default rate	0.13%
Commercial mortgage backed securities | Discounted cash flow
Fair value inputs, assets, quantitative information
Fair Value	3,051
Commercial mortgage backed securities | Discounted cash flow | Minimum
Fair value inputs, assets, quantitative information
Yield	0.00%
Commercial mortgage backed securities | Discounted cash flow | Maximum
Fair value inputs, assets, quantitative information
Yield	27.34%
Commercial mortgage backed securities | Discounted cash flow | Weighted-average
Fair value inputs, assets, quantitative information
Yield	10.14%
CDO/ABS - Direct Investment book | Binomial Expansion Technique (BET)
Fair value inputs, assets, quantitative information
Fair Value	1,290
CDO/ABS - Direct Investment book | Binomial Expansion Technique (BET) | Minimum
Fair value inputs, assets, quantitative information
Recovery rates	3.00%
Diversity score	4
Weighted average life	1 year 1 month 13 days
CDO/ABS - Direct Investment book | Binomial Expansion Technique (BET) | Maximum
Fair value inputs, assets, quantitative information
Recovery rates	65.00%
Diversity score	37
Weighted average life	9 years 2 months 1 day
CDO/ABS - Direct Investment book | Binomial Expansion Technique (BET) | Weighted-average
Fair value inputs, assets, quantitative information
Diversity score	14
Weighted average life	4 years 6 months 25 days