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FAIR VALUE MEASUREMENTS (Details - Investments in Certain Entities Carried at Fair Value Using Net Asset Value Per Share) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2015
Dec. 31, 2014
INVESTMENTS IN CERTAIN ENTITIES CARRIED AT FAIR VALUE USING NET ASSET VALUE PER SHARE    
Fair Value Using Net Asset Value Per Share or its equivalent $ 8,914 $ 8,359
Unfunded Commitments 970 986
Private equity funds:    
INVESTMENTS IN CERTAIN ENTITIES CARRIED AT FAIR VALUE USING NET ASSET VALUE PER SHARE    
Fair Value Using Net Asset Value Per Share or its equivalent 2,902 3,160
Unfunded Commitments $ 939 980
Average original expected lives 10 years  
Second investment redemption notice period 2 years  
Private equity funds: | Expected remaining lives of 3 years or less    
INVESTMENTS IN CERTAIN ENTITIES CARRIED AT FAIR VALUE USING NET ASSET VALUE PER SHARE    
First threshold level of remaining lives 3 years  
Percentage of hedge fund investments that cannot be redeemed, either in whole or in part 84.00%  
Private equity funds: | Expected remaining lives of less than 4 to 6 years    
INVESTMENTS IN CERTAIN ENTITIES CARRIED AT FAIR VALUE USING NET ASSET VALUE PER SHARE    
Second threshold level of remaining lives 6 years  
Percentage of hedge fund investments that cannot be redeemed, either in whole or in part 5.00%  
Private equity funds: | Expected remaining lives of less than 7 to 10 years    
INVESTMENTS IN CERTAIN ENTITIES CARRIED AT FAIR VALUE USING NET ASSET VALUE PER SHARE    
Third threshold level of remaining lives 10 years  
Percentage of hedge fund investments that cannot be redeemed, either in whole or in part 11.00%  
Leveraged buyout    
INVESTMENTS IN CERTAIN ENTITIES CARRIED AT FAIR VALUE USING NET ASSET VALUE PER SHARE    
Fair Value Using Net Asset Value Per Share or its equivalent $ 2,008 2,275
Unfunded Commitments 446 450
Real Estate / Infrastructure    
INVESTMENTS IN CERTAIN ENTITIES CARRIED AT FAIR VALUE USING NET ASSET VALUE PER SHARE    
Fair Value Using Net Asset Value Per Share or its equivalent 359 384
Unfunded Commitments 203 227
Venture capital    
INVESTMENTS IN CERTAIN ENTITIES CARRIED AT FAIR VALUE USING NET ASSET VALUE PER SHARE    
Fair Value Using Net Asset Value Per Share or its equivalent 119 121
Unfunded Commitments 34 26
Distressed    
INVESTMENTS IN CERTAIN ENTITIES CARRIED AT FAIR VALUE USING NET ASSET VALUE PER SHARE    
Fair Value Using Net Asset Value Per Share or its equivalent 157 164
Unfunded Commitments 43 43
Other..    
INVESTMENTS IN CERTAIN ENTITIES CARRIED AT FAIR VALUE USING NET ASSET VALUE PER SHARE    
Fair Value Using Net Asset Value Per Share or its equivalent 259 216
Unfunded Commitments 213 234
Hedge funds:    
INVESTMENTS IN CERTAIN ENTITIES CARRIED AT FAIR VALUE USING NET ASSET VALUE PER SHARE    
Fair Value Using Net Asset Value Per Share or its equivalent 6,012 5,199
Unfunded Commitments $ 31 6
Hedge fund investments redeemable monthly (as a percent) 14.00%  
Hedge fund investments redeemable quarterly (as a percent) 49.00%  
Hedge fund investments redeemable semi-annually (as a percent) 14.00%  
Hedge fund investments redeemable annually (as a percent) 23.00%  
Percentage of hedge fund investments that cannot be redeemed, either in whole or in part 44.00%  
Event-driven    
INVESTMENTS IN CERTAIN ENTITIES CARRIED AT FAIR VALUE USING NET ASSET VALUE PER SHARE    
Fair Value Using Net Asset Value Per Share or its equivalent $ 1,288 1,109
Unfunded Commitments 0 0
Long-short    
INVESTMENTS IN CERTAIN ENTITIES CARRIED AT FAIR VALUE USING NET ASSET VALUE PER SHARE    
Fair Value Using Net Asset Value Per Share or its equivalent 2,880 2,428
Unfunded Commitments 16 1
Macro    
INVESTMENTS IN CERTAIN ENTITIES CARRIED AT FAIR VALUE USING NET ASSET VALUE PER SHARE    
Fair Value Using Net Asset Value Per Share or its equivalent 562 498
Unfunded Commitments 0 0
Distressed.    
INVESTMENTS IN CERTAIN ENTITIES CARRIED AT FAIR VALUE USING NET ASSET VALUE PER SHARE    
Fair Value Using Net Asset Value Per Share or its equivalent 753 731
Unfunded Commitments 15 5
Emerging markets    
INVESTMENTS IN CERTAIN ENTITIES CARRIED AT FAIR VALUE USING NET ASSET VALUE PER SHARE    
Fair Value Using Net Asset Value Per Share or its equivalent 347 308
Unfunded Commitments 0 0
Other hedge funds    
INVESTMENTS IN CERTAIN ENTITIES CARRIED AT FAIR VALUE USING NET ASSET VALUE PER SHARE    
Fair Value Using Net Asset Value Per Share or its equivalent 182 125
Unfunded Commitments $ 0 $ 0