INVESTMENTS - Loan Performance After Modifications (Details) - Transitional real estate loans $ in Millions	Sep. 30, 2024 USD ($)
Current
Financing Receivable, Modified, Past Due [Line Items]
Financing Receivable, Modified, after 12 Months	$ 414
Less Than 90 Days Past Due
Financing Receivable, Modified, Past Due [Line Items]
Financing Receivable, Modified, after 12 Months	0
90 Days or More Past Due
Financing Receivable, Modified, Past Due [Line Items]
Financing Receivable, Modified, after 12 Months	$ 0

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 12A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481933/310-10-55-12A

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-42

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