LENDING ACTIVITIES (Details - Credit quality performance indicators for commercial mortgages) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2022 USD ($) loan	Dec. 31, 2021 USD ($) loan	Mar. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Financing Receivable, Credit Quality Indicator [Line Items]
Allowance for credit losses	$ 617	$ 629	$ 787	$ 814
Debt Coverage Ratio	2.0	1.9
Average Loan to Value Ratio	57.00%	57.00%
Apartments
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	$ 13,760	$ 14,267
Allowance for credit losses	101	109
Apartments | In good standing
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	13,760	14,267
Apartments | Restructured
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Apartments | 90 days or less delinquent
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Apartments | >90 days delinquent or in process of foreclosure
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Offices
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	10,012	10,130
Allowance for credit losses	227	247
Offices | In good standing
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	9,592	9,695
Offices | Restructured
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	353	354
Offices | 90 days or less delinquent
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Offices | >90 days delinquent or in process of foreclosure
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	67	81
Retail
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	5,136	4,857
Allowance for credit losses	106	103
Retail | In good standing
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	4,945	4,778
Retail | Restructured
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	140	25
Retail | 90 days or less delinquent
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Retail | >90 days delinquent or in process of foreclosure
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	51	54
Industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	4,554	3,858
Allowance for credit losses	56	47
Industrial | In good standing
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	4,554	3,858
Industrial | Restructured
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Industrial | 90 days or less delinquent
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Industrial | >90 days delinquent or in process of foreclosure
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Hotel
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	2,221	2,121
Allowance for credit losses	33	31
Hotel | In good standing
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	2,084	1,985
Hotel | Restructured
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	137	136
Hotel | 90 days or less delinquent
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Hotel | >90 days delinquent or in process of foreclosure
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Others
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	420	432
Allowance for credit losses	10	8
Others | In good standing
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	420	432
Others | Restructured
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Others | 90 days or less delinquent
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Others | >90 days delinquent or in process of foreclosure
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	$ 0	$ 0
Commercial mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Number of loans in good standing | loan	627	636
Number of loans restructured | loan	10	8
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	3	5
Number of Loans | loan	640	649
Loans receivable	$ 36,103	$ 35,665
Allowance for credit losses	$ 533	$ 545
Percentage of loans that are current as to payments of principal and interest	98.00%	98.00%
Percentage restructured	2.00%	2.00%
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 allowance for losses	1.00%	2.00%
Commercial mortgages | In good standing
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	$ 35,355	$ 35,015
Commercial mortgages | Restructured
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	630	515
Commercial mortgages | 90 days or less delinquent
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Commercial mortgages | >90 days delinquent or in process of foreclosure
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	$ 118	$ 135