LENDING ACTIVITIES (Details - Credit quality indicators for commercial mortgage loans) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2019 USD ($) loan	Dec. 31, 2018 USD ($) loan	Jun. 30, 2018 USD ($)	Dec. 31, 2017 USD ($)
Commercial Mortgage Recorded Investment [Line Items]
Mortgage and other loans receivable, net	$ 43,556	$ 43,135
Allowance for credit losses	407	397	$ 356	$ 322
Total mortgage and other loans receivable	$ 43,963	$ 43,532
Debt Coverage Ratio	1.9	1.9
Average Loan to Value Ratio	58.00%	58.00%
Apartments
Commercial Mortgage Recorded Investment [Line Items]
In good standing	$ 12,012	$ 11,190
Restructured	0	0
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	12,012	11,190
Allowance for credit losses, Specific	0	0
Allowance for credit losses, General	109	122
Allowance for credit losses	109	122
Offices
Commercial Mortgage Recorded Investment [Line Items]
In good standing	9,790	9,774
Restructured	92	96
90 days or less delinquent	0	0
Greater than 90 days delinquent or in process of foreclosure	20	0
Mortgage and other loans receivable, net	9,902	9,870
Allowance for credit losses, Specific	6	2
Allowance for credit losses, General	103	104
Allowance for credit losses	109	106
Retail
Commercial Mortgage Recorded Investment [Line Items]
In good standing	5,505	5,645
Restructured	0	0
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	5,505	5,645
Allowance for credit losses, Specific	1	0
Allowance for credit losses, General	52	51
Allowance for credit losses	53	51
Industrial
Commercial Mortgage Recorded Investment [Line Items]
In good standing	2,973	3,074
Restructured	0	0
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	2,973	3,074
Allowance for credit losses, Specific	0	0
Allowance for credit losses, General	12	13
Allowance for credit losses	12	13
Hotel
Commercial Mortgage Recorded Investment [Line Items]
In good standing	2,462	2,507
Restructured	15	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	2,477	2,523
Allowance for credit losses, Specific	1	1
Allowance for credit losses, General	20	19
Allowance for credit losses	21	20
Others
Commercial Mortgage Recorded Investment [Line Items]
In good standing	568	580
Restructured	0	0
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	568	580
Allowance for credit losses, Specific	0	0
Allowance for credit losses, General	6	6
Allowance for credit losses	$ 6	$ 6
Commercial mortgages
Commercial Mortgage Recorded Investment [Line Items]
Number of loans in good standing | loan	743	762
Number of loans restructured | loan	2	2
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	1	0
Number of Loans | loan	746	764
In good standing	$ 33,310	$ 32,770
Restructured	107	112
90 days or less delinquent	0	0
Greater than 90 days delinquent or in process of foreclosure	20	0
Mortgage and other loans receivable, net	33,437	32,882
Allowance for credit losses, Specific	8	3
Allowance for credit losses, General	302	315
Allowance for credit losses	$ 310	$ 318
Percentage of loans that are current as to payments of principal and interest	100.00%	100.00%
Percentage restructured	0.00%	0.00%
Percentage 90 days or less delinquent	0.00%	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 valuation allowance, Specific	0.00%	0.00%
Percentage of loans with allowance for losses	1.00%	1.00%
Commercial mortgages | Less than 65% | Greater than 1.2x
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	$ 19,243	$ 19,204
Commercial mortgages | Less than 65% | 1.00X - 1.20X
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	2,054	2,543
Commercial mortgages | Less than 65% | Less than 1.00X
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	245	250
Commercial mortgages | Less than 65% | Total
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	21,542	21,997
Commercial mortgages | 65% to 75% | Greater than 1.2x
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	9,720	9,060
Commercial mortgages | 65% to 75% | 1.00X - 1.20X
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	564	300
Commercial mortgages | 65% to 75% | Less than 1.00X
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	214	203
Commercial mortgages | 65% to 75% | Total
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	10,498	9,563
Commercial mortgages | 76% to 80% | Greater than 1.2x
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	975	476
Commercial mortgages | 76% to 80% | 1.00X - 1.20X
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	19	20
Commercial mortgages | 76% to 80% | Less than 1.00X
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	3	15
Commercial mortgages | 76% to 80% | Total
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	997	511
Commercial mortgages | Greater than 80% | Greater than 1.2x
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	201	596
Commercial mortgages | Greater than 80% | 1.00X - 1.20X
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	88	103
Commercial mortgages | Greater than 80% | Less than 1.00X
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	111	112
Commercial mortgages | Greater than 80% | Total
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	400	811
Commercial mortgages | Total | Greater than 1.2x
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	30,139	29,336
Commercial mortgages | Total | 1.00X - 1.20X
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	2,725	2,966
Commercial mortgages | Total | Less than 1.00X
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	573	580
Commercial mortgages | Total | Total
Commercial Mortgage Recorded Investment [Line Items]
Total mortgage and other loans receivable	$ 33,437	$ 32,882