LENDING ACTIVITIES (Details 2) (USD $) In Millions, unless otherwise specified											3 Months Ended
	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2012	Dec. 31, 2011	Mar. 31, 2013 Apartments	Mar. 31, 2013 Offices	Mar. 31, 2013 Retail	Mar. 31, 2013 Industrial	Mar. 31, 2013 Hotel	Mar. 31, 2013 Others	Mar. 31, 2013 Commercial mortgages loan
Credit quality indicators for commercial mortgage loans
Number of loans in good standing											989
Number of loans restructured											8
Number of loans 90 days or less delinquent											2
Number of loans greater than 90 days delinquent or in process of foreclosure											8
Number of Loans											1,007
In good standing					$ 1,948	$ 4,563	$ 2,646	$ 1,769	$ 1,141	$ 1,684	$ 13,751
Restructured					50	207	7	1		21	286
Greater than 90 days delinquent or in process of foreclosure						30	27			76	133
Mortgage and other loans receivable, net	19,488	19,482			1,998	4,800	2,680	1,770	1,141	1,781	14,170
Valuation allowance	$ 385	$ 405	$ 708	$ 740	$ 4	$ 73	$ 26	$ 19	$ 1	$ 42	$ 165
Percentage of loans that are current as to payments of principal and interest											97.00%
Percentage restructured											2.00%
Percentage greater than 90 days delinquent or in foreclosure											1.00%
Percentage Total											100.00%
Percentage of loans with valuation allowance											1.00%