LENDING ACTIVITIES (Details - Credit quality of residential mortgages by year of vintage) - 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	46,844	$ 46,984
Residential mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Mortgage and other loans receivable, net	6,718
780 and greater
Financing Receivable, Credit Quality Indicator [Line Items]
2020	116
2019	973
2018	638
2017	984
2016	996
Prior	969
Mortgage and other loans receivable, net	4,676
720 - 779
Financing Receivable, Credit Quality Indicator [Line Items]
2020	128
2019	496
2018	190
2017	265
2016	282
Prior	285
Mortgage and other loans receivable, net	1,646
660 - 719
Financing Receivable, Credit Quality Indicator [Line Items]
2020	6
2019	77
2018	43
2017	55
2016	65
Prior	85
Mortgage and other loans receivable, net	331
600 - 659
Financing Receivable, Credit Quality Indicator [Line Items]
2020	1
2019	8
2018	7
2017	8
2016	7
Prior	16
Mortgage and other loans receivable, net	47
Less than 600
Financing Receivable, Credit Quality Indicator [Line Items]
2020	0
2019	1
2018	1
2017	2
2016	3
Prior	11
Mortgage and other loans receivable, net	$ 18