FAIR VALUE (Details)	Mar. 31, 2021 USD ($) loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Specific reserve amount	$ 10,589
Impaired real estate loans	4,204,863,000,000
Minimum | Discount Rate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of discount rate	0
Maximum | Discount Rate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of discount rate	$ 16
Indirect
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of impaired loans classified as nonaccrual loans | loan	5
Impaired loans includes nonaccrual, past due 90 days or more and still accruing	$ 1,806,384,000,000
Remaining impaired loan	237,000
Specific reserve amount	$ 10,589