FAIR VALUE MEASUREMENTS (Details - Investments in certain other invested assets, including private equity funds, hedge funds and other alternative investments) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value Using Net Asset Value Per Share or its equivalent	$ 8,359	$ 7,732
Unfunded Commitments	986	977
Private equity funds:
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value Using Net Asset Value Per Share or its equivalent	3,160	3,347
Unfunded Commitments	980	949
Investment redemption notice period (in days/years)
Private equity funds: | Expected remaining lives of less than 3 years
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Percentage of hedge fund investments that cannot be redeemed, either in whole or in part	72.00%
Private equity funds: | Expected remaining lives of 4 to 6 years
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Percentage of hedge fund investments that cannot be redeemed, either in whole or in part	18.00%
Private equity funds: | Expected remaining lives of 7 to 10 years
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Percentage of hedge fund investments that cannot be redeemed, either in whole or in part	10.00%
Leveraged buyout
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value Using Net Asset Value Per Share or its equivalent	2,275	2,544
Unfunded Commitments	450	578
Real Estate / Infrastructure
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value Using Net Asset Value Per Share or its equivalent	384	346
Unfunded Commitments	227	86
Venture capital
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value Using Net Asset Value Per Share or its equivalent	121	140
Unfunded Commitments	26	13
Distressed
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value Using Net Asset Value Per Share or its equivalent	164	183
Unfunded Commitments	43	34
Other..
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value Using Net Asset Value Per Share or its equivalent	216	134
Unfunded Commitments	234	238
Hedge funds:
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value Using Net Asset Value Per Share or its equivalent	5,199	4,385
Unfunded Commitments	6	28
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)	15.00%
Hedge fund investments redeemable annually (as a percent)	22.00%
Percentage of hedge fund investments that cannot be redeemed, either in whole or in part	43.00%
Event-driven
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value Using Net Asset Value Per Share or its equivalent	1,109	976
Unfunded Commitments	0	2
Long-short
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value Using Net Asset Value Per Share or its equivalent	2,428	1,759
Unfunded Commitments	1	11
Macro
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value Using Net Asset Value Per Share or its equivalent	498	612
Unfunded Commitments	0	0
Distressed.
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value Using Net Asset Value Per Share or its equivalent	731	594
Unfunded Commitments	5	15
Emerging markets
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value Using Net Asset Value Per Share or its equivalent	308	287
Unfunded Commitments	0	0
Other hedge funds
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value Using Net Asset Value Per Share or its equivalent	125	157
Unfunded Commitments	$ 0	$ 0