LENDING ACTIVITIES (Details - Credit quality of commercial mortgages) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Financing Receivable, Credit Quality Indicator [Line Items]
2020	$ 251
2019	1,555
2018	879
2017	1,314
2016	1,353
Prior	1,366
Mortgage and other loans receivable, net	47,631	$ 47,422
Commercial mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
2020	816
2019	5,886
2018	6,468
2017	4,647
2016	5,327
Prior	13,147
Mortgage and other loans receivable, net	36,291	36,170
Less than 65% | Commercial mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
2020	567
2019	4,567
2018	4,508
2017	3,584
2016	4,032
Prior	10,745
Mortgage and other loans receivable, net	28,003
65% to 75% | Commercial mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
2020	249
2019	1,319
2018	1,960
2017	924
2016	1,104
Prior	2,221
Mortgage and other loans receivable, net	7,777
76% to 80% | Commercial mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
2020	0
2019	0
2018	0
2017	0
2016	191
Prior	5
Mortgage and other loans receivable, net	196
Greater than 80% | Commercial mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
2020	0
2019	0
2018	0
2017	139
2016	0
Prior	176
Mortgage and other loans receivable, net	315
Greater than 1.2x | Commercial mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
2020	701
2019	5,557
2018	5,963
2017	4,309
2016	5,165
Prior	10,745
Mortgage and other loans receivable, net	32,440
Greater than 1.2x | Less than 65% | Commercial mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Mortgage and other loans receivable, net		23,013
Greater than 1.2x | 65% to 75% | Commercial mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Mortgage and other loans receivable, net		9,007
Greater than 1.2x | 76% to 80% | Commercial mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Mortgage and other loans receivable, net		200
Greater than 1.2x | Greater than 80% | Commercial mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Mortgage and other loans receivable, net		184
Greater than 1.2x | Total | Commercial mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Mortgage and other loans receivable, net		32,404
1.00X - 1.20X | Commercial mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
2020	115
2019	255
2018	505
2017	338
2016	162
Prior	2,072
Mortgage and other loans receivable, net	3,447
1.00X - 1.20X | Less than 65% | Commercial mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Mortgage and other loans receivable, net		2,440
1.00X - 1.20X | 65% to 75% | Commercial mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Mortgage and other loans receivable, net		899
1.00X - 1.20X | 76% to 80% | Commercial mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Mortgage and other loans receivable, net		6
1.00X - 1.20X | Greater than 80% | Commercial mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Mortgage and other loans receivable, net		2
1.00X - 1.20X | Total | Commercial mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Mortgage and other loans receivable, net		3,347
Less than 1.00X | Commercial mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
2020	0
2019	74
2018	0
2017	0
2016	0
Prior	330
Mortgage and other loans receivable, net	$ 404
Less than 1.00X | Less than 65% | Commercial mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Mortgage and other loans receivable, net		245
Less than 1.00X | 65% to 75% | Commercial mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Mortgage and other loans receivable, net		40
Less than 1.00X | 76% to 80% | Commercial mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Mortgage and other loans receivable, net		0
Less than 1.00X | Greater than 80% | Commercial mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Mortgage and other loans receivable, net		134
Less than 1.00X | Total | Commercial mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Mortgage and other loans receivable, net		419
Total | Less than 65% | Commercial mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Mortgage and other loans receivable, net		25,698
Total | 65% to 75% | Commercial mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Mortgage and other loans receivable, net		9,946
Total | 76% to 80% | Commercial mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Mortgage and other loans receivable, net		206
Total | Greater than 80% | Commercial mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Mortgage and other loans receivable, net		320
Total | Total | Commercial mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Mortgage and other loans receivable, net		$ 36,170