LENDING ACTIVITIES (Details - Credit quality indicators for commercial mortgage loans) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2017 USD ($) loan	Dec. 31, 2016 USD ($) loan	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Commercial Mortgage Recorded Investment [Line Items]
Mortgage and other loans receivable, net	$ 33,878	$ 33,240
Allowance for credit losses	289	297	$ 277	$ 308
Total mortgage and other loans receivable	34,167	33,537
Apartments
Commercial Mortgage Recorded Investment [Line Items]
In good standing	6,305	6,005
Restructured	0	0
90 days or less delinquent	0	0
Greater than 90 days delinquent or in process of foreclosure	0	0
Allowance for credit losses, Specific	0	0
Allowance for credit losses, General	44	35
Allowance for credit losses	44	35
Total mortgage and other loans receivable	6,305	6,005
Offices
Commercial Mortgage Recorded Investment [Line Items]
In good standing	8,109	7,830
Restructured	134	134
90 days or less delinquent	0	0
Greater than 90 days delinquent or in process of foreclosure	0	0
Allowance for credit losses, Specific	5	3
Allowance for credit losses, General	72	72
Allowance for credit losses	77	75
Total mortgage and other loans receivable	8,243	7,964
Retail
Commercial Mortgage Recorded Investment [Line Items]
In good standing	4,993	5,179
Restructured	18	18
90 days or less delinquent	0	0
Greater than 90 days delinquent or in process of foreclosure	0	0
Allowance for credit losses, Specific	1	1
Allowance for credit losses, General	46	41
Allowance for credit losses	47	42
Total mortgage and other loans receivable	5,011	5,197
Industrial
Commercial Mortgage Recorded Investment [Line Items]
In good standing	2,196	1,898
Restructured	0	0
90 days or less delinquent	0	0
Greater than 90 days delinquent or in process of foreclosure	0	0
Allowance for credit losses, Specific	0	6
Allowance for credit losses, General	9	7
Allowance for credit losses	9	13
Total mortgage and other loans receivable	2,196	1,898
Hotel
Commercial Mortgage Recorded Investment [Line Items]
In good standing	2,261	2,373
Restructured	16	16
90 days or less delinquent	0	0
Greater than 90 days delinquent or in process of foreclosure	0	0
Allowance for credit losses, Specific	1	1
Allowance for credit losses, General	13	13
Allowance for credit losses	14	14
Total mortgage and other loans receivable	2,277	2,389
Others
Commercial Mortgage Recorded Investment [Line Items]
In good standing	1,963	1,589
Restructured	0	0
90 days or less delinquent	0	0
Greater than 90 days delinquent or in process of foreclosure	0	0
Allowance for credit losses, Specific	0	0
Allowance for credit losses, General	16	15
Allowance for credit losses	16	15
Total mortgage and other loans receivable	$ 1,963	$ 1,589
Commercial mortgages
Commercial Mortgage Recorded Investment [Line Items]
Number of loans in good standing | loan	790	784
Number of loans restructured | loan	4	4
Number of loans 90 days or less delinquent | loan	0	0
Number of loans greater than 90 days delinquent or in process of foreclosure | loan	0	0
Number of Loans | loan	794	788
In good standing	$ 25,827	$ 24,874
Restructured	168	168
90 days or less delinquent	0	0
Greater than 90 days delinquent or in process of foreclosure	0	0
Allowance for credit losses, Specific	7	11
Allowance for credit losses, General	200	183
Allowance for credit losses	$ 207	$ 194
Percentage of loans that are current as to payments of principal and interest	99.00%	99.00%
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%	0.00%
Percentage Total	100.00%	100.00%
Percentage of loans with valuation allowance, Genaral	1.00%	1.00%
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	$ 25,995	$ 25,042
Commercial mortgages | Greater than 1.2x
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	22,855	21,661
Commercial mortgages | 1.00X - 1.20X
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	2,636	2,835
Commercial mortgages | Less than 1.00X
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	504	546
Commercial mortgages | Less than 65%
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	17,175	15,924
Commercial mortgages | Less than 65% | Greater than 1.2x
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	15,636	13,998
Commercial mortgages | Less than 65% | 1.00X - 1.20X
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	1,309	1,694
Commercial mortgages | Less than 65% | Less than 1.00X
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	230	232
Commercial mortgages | 65% to 75%
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	6,560	6,583
Commercial mortgages | 65% to 75% | Greater than 1.2x
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	5,842	5,946
Commercial mortgages | 65% to 75% | 1.00X - 1.20X
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	656	575
Commercial mortgages | 65% to 75% | Less than 1.00X
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	62	62
Commercial mortgages | 76% to 80%
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	1,096	1,467
Commercial mortgages | 76% to 80% | Greater than 1.2x
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	881	1,246
Commercial mortgages | 76% to 80% | 1.00X - 1.20X
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	133	174
Commercial mortgages | 76% to 80% | Less than 1.00X
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	82	47
Commercial mortgages | Greater than 80%
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	1,164	1,068
Commercial mortgages | Greater than 80% | Greater than 1.2x
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	496	471
Commercial mortgages | Greater than 80% | 1.00X - 1.20X
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	538	392
Commercial mortgages | Greater than 80% | Less than 1.00X
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	$ 130	$ 205