INVESTMENTS - Aging of Past Due Loans (Details) - USD ($)	Jun. 30, 2022	Dec. 31, 2021
Financing Receivable, Past Due [Line Items]
Total Loans		$ 1,507,000,000
Non-Accrual Status		0
Total commercial mortgage loans
Financing Receivable, Past Due [Line Items]
Total Loans		1,457,000,000
Non-Accrual Status		0
Agricultural Property Loans
Financing Receivable, Past Due [Line Items]
Total Loans		50,000,000
Non-Accrual Status		0
Current
Financing Receivable, Past Due [Line Items]
Total Loans		1,507,000,000
Current | Total commercial mortgage loans
Financing Receivable, Past Due [Line Items]
Total Loans		1,457,000,000
Current | Agricultural Property Loans
Financing Receivable, Past Due [Line Items]
Total Loans		50,000,000
30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans		0
30-59 Days Past Due | Total commercial mortgage loans
Financing Receivable, Past Due [Line Items]
Total Loans		0
30-59 Days Past Due | Agricultural Property Loans
Financing Receivable, Past Due [Line Items]
Total Loans		0
60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans		0
60-89 Days Past Due | Total commercial mortgage loans
Financing Receivable, Past Due [Line Items]
Total Loans		0
60-89 Days Past Due | Agricultural Property Loans
Financing Receivable, Past Due [Line Items]
Total Loans		0
90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	$ 0	0
90 Days or More Past Due | Total commercial mortgage loans
Financing Receivable, Past Due [Line Items]
Total Loans		0
90 Days or More Past Due | Agricultural Property Loans
Financing Receivable, Past Due [Line Items]
Total Loans		$ 0