LENDING ACTIVITIES (Details - Credit quality indicators for commercial mortgage loans) $ in Millions	12 Months Ended
	Dec. 31, 2016 USD ($) loan	Dec. 31, 2015 USD ($) loan	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Commercial Mortgage Recorded Investment [Line Items]
Mortgage and other loans receivable, net	$ 33,240	$ 29,565
Allowance for credit losses	297	308	$ 271	$ 312
Total mortgage and other loans receivable	33,537	29,873
Apartments
Commercial Mortgage Recorded Investment [Line Items]
In good standing	6,005	3,916
Restructured	0	0
90 days or less delinquent	0	0
Greater than 90 days delinquent or in process of foreclosure	0	3
Mortgage and other loans receivable, net	6,005	3,919
Allowance for credit losses, Specific	0	0
Allowance for credit losses, General	35	35
Allowance for credit losses	35	35
Offices
Commercial Mortgage Recorded Investment [Line Items]
In good standing	7,830	7,484
Restructured	134	156
90 days or less delinquent	0	0
Greater than 90 days delinquent or in process of foreclosure	0	205
Mortgage and other loans receivable, net	7,964	7,845
Allowance for credit losses, Specific	3	16
Allowance for credit losses, General	72	47
Allowance for credit losses	75	63
Retail
Commercial Mortgage Recorded Investment [Line Items]
In good standing	5,179	4,809
Restructured	18	25
90 days or less delinquent	0	4
Greater than 90 days delinquent or in process of foreclosure	0	0
Mortgage and other loans receivable, net	5,197	4,838
Allowance for credit losses, Specific	1	1
Allowance for credit losses, General	41	29
Allowance for credit losses	42	30
Industrial
Commercial Mortgage Recorded Investment [Line Items]
In good standing	1,898	1,902
Restructured	0	6
90 days or less delinquent	0	0
Greater than 90 days delinquent or in process of foreclosure	0	6
Mortgage and other loans receivable, net	1,898	1,914
Allowance for credit losses, Specific	6	6
Allowance for credit losses, General	7	8
Allowance for credit losses	13	14
Hotel
Commercial Mortgage Recorded Investment [Line Items]
In good standing	2,373	2,082
Restructured	16	16
90 days or less delinquent	0	0
Greater than 90 days delinquent or in process of foreclosure	0	0
Mortgage and other loans receivable, net	2,389	2,098
Allowance for credit losses, Specific	1	1
Allowance for credit losses, General	13	15
Allowance for credit losses	14	16
Others
Commercial Mortgage Recorded Investment [Line Items]
In good standing	1,589	1,435
Restructured	0	6
90 days or less delinquent	0	0
Greater than 90 days delinquent or in process of foreclosure	0	12
Mortgage and other loans receivable, net	1,589	1,453
Allowance for credit losses, Specific	0	0
Allowance for credit losses, General	15	13
Allowance for credit losses	$ 15	$ 13
Commercial mortgages
Commercial Mortgage Recorded Investment [Line Items]
Number of loans in good standing | loan	784	830
Number of loans restructured | loan	4	9
Number of loans 90 days or less delinquent | loan	0	1
Number of loans greater than 90 days delinquent or in process of foreclosure | loan	0	9
Number of Loans | loan	788	849
In good standing	$ 24,874	$ 21,628
Restructured	168	209
90 days or less delinquent	0	4
Greater than 90 days delinquent or in process of foreclosure	0	226
Mortgage and other loans receivable, net	25,042	22,067
Allowance for credit losses, Specific	11	24
Allowance for credit losses, General	183	147
Allowance for credit losses	$ 194	$ 171
Percentage of loans that are current as to payments of principal and interest	99.00%	98.00%
Percentage restructured	1.00%	1.00%
Percentage 90 days or less delinquent	0.00%
Percentage greater than 90 days delinquent or in foreclosure	0.00%	1.00%
Percentage Total	100.00%	100.00%
Percentage of loans with valuation allowance, Genaral	1.00%	1.00%
Percentage of loans with valuation allowance, Specific	0.00%	0.00%
Percentage of loans with allowance for losses	1.00%	1.00%
Percentage of current commercial mortgages held	100.00%
Total mortgage and other loans receivable	$ 25,042	$ 22,067
Commercial mortgages | Greater than 1.2x
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	21,661	18,660
Commercial mortgages | 1.00X - 1.20X
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	2,835	2,710
Commercial mortgages | Less than 1.00X
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	546	697
Commercial mortgages | Less than 65%
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	15,924	12,137
Commercial mortgages | Less than 65% | Greater than 1.2x
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	13,998	10,283
Commercial mortgages | Less than 65% | 1.00X - 1.20X
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	1,694	1,704
Commercial mortgages | Less than 65% | Less than 1.00X
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	232	150
Commercial mortgages | 65% to 75%
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	6,583	7,017
Commercial mortgages | 65% to 75% | Greater than 1.2x
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	5,946	6,361
Commercial mortgages | 65% to 75% | 1.00X - 1.20X
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	575	611
Commercial mortgages | 65% to 75% | Less than 1.00X
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	62	45
Commercial mortgages | 76% to 80%
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	1,467	1,620
Commercial mortgages | 76% to 80% | Greater than 1.2x
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	1,246	1,370
Commercial mortgages | 76% to 80% | 1.00X - 1.20X
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	174	169
Commercial mortgages | 76% to 80% | Less than 1.00X
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	47	81
Commercial mortgages | Greater than 80%
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	1,068	1,293
Commercial mortgages | Greater than 80% | Greater than 1.2x
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	471	646
Commercial mortgages | Greater than 80% | 1.00X - 1.20X
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	392	226
Commercial mortgages | Greater than 80% | Less than 1.00X
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	$ 205	$ 421