LENDING ACTIVITIES (Details - Credit quality performance indicators for commercial mortgages) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2020 USD ($) loan	Dec. 31, 2019 USD ($) loan	Jun. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)	Dec. 31, 2018 USD ($)
Financing Receivable, Credit Quality Indicator [Line Items]
Mortgage and other loans receivable, net	$ 45,590	$ 46,984
Allowance for credit losses	$ 797	$ 438	$ 794	$ 430	$ 407	$ 397
Debt Coverage Ratio	2.2	2.0
Average Loan to Value Ratio	57.00%	56.00%
Apartments
Financing Receivable, Credit Quality Indicator [Line Items]
In good standing	$ 13,704	$ 13,698
Restructured	0	0
90 days or less delinquent	0	1
Greater than 90 days delinquent or in process of foreclosure	0	0
Mortgage and other loans receivable, net	13,704	13,699
Allowance for credit losses, Specific		0
Allowance for credit losses, General		81
Allowance for credit losses	123	81
Offices
Financing Receivable, Credit Quality Indicator [Line Items]
In good standing	10,843	10,553
Restructured	0	89
90 days or less delinquent	0	0
Greater than 90 days delinquent or in process of foreclosure	116	0
Mortgage and other loans receivable, net	10,959	10,642
Allowance for credit losses, Specific		2
Allowance for credit losses, General		153
Allowance for credit losses	281	155
Retail
Financing Receivable, Credit Quality Indicator [Line Items]
In good standing	5,124	5,332
Restructured	50	0
90 days or less delinquent	0	0
Greater than 90 days delinquent or in process of foreclosure	54	0
Mortgage and other loans receivable, net	5,228	5,332
Allowance for credit losses, Specific		1
Allowance for credit losses, General		44
Allowance for credit losses	141	45
Industrial
Financing Receivable, Credit Quality Indicator [Line Items]
In good standing	3,746	3,663
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	3,746	3,663
Allowance for credit losses, Specific		0
Allowance for credit losses, General		30
Allowance for credit losses	55	30
Hotel
Financing Receivable, Credit Quality Indicator [Line Items]
In good standing	2,080	2,211
Restructured	0	101
90 days or less delinquent	108	0
Greater than 90 days delinquent or in process of foreclosure	86	0
Mortgage and other loans receivable, net	2,274	2,312
Allowance for credit losses, Specific		6
Allowance for credit losses, General		14
Allowance for credit losses	52	20
Others
Financing Receivable, Credit Quality Indicator [Line Items]
In good standing	448	522
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	448	522
Allowance for credit losses, Specific		0
Allowance for credit losses, General		5
Allowance for credit losses	$ 7	$ 5
Commercial mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Number of loans in good standing | loan	700	736
Number of loans restructured | loan	3	3
Number of loans 90 days or less delinquent | loan	1	1
Number of loans greater than 90 days delinquent or in process of foreclosure | loan	5	0
Number of Loans | loan	709	740
In good standing	$ 35,945	$ 35,979
Restructured	50	190
90 days or less delinquent	108	1
Greater than 90 days delinquent or in process of foreclosure	256	0
Mortgage and other loans receivable, net	36,359	36,170
Allowance for credit losses, Specific		9
Allowance for credit losses, General		327
Allowance for credit losses	$ 659	$ 336
Percentage of loans that are current as to payments of principal and interest	99.00%	99.00%
Percentage restructured	0.00%	1.00%
Percentage 90 days or less delinquent	0.00%	0.00%
Percentage greater than 90 days delinquent or in foreclosure	1.00%	0.00%
Percentage Total	100.00%	100.00%
Percentage of loans with valuation allowance, Specific		0.00%
Percentage of loans with valuation allowance, General		1.00%
Percentage of loans with allowance for losses	2.00%	1.00%