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INVESTMENTS - Effect of Loan Modifications (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Middle market loans | Term extension |  |  |  |  |
Financing Receivable, Modified [Line Items] |  |  |  |  |
Loan modification, amortized cost | [1] | $ 13 |  | $ 46 |
Loan modification, percent of total amortized cost |  | 0.30% |  | 1.10% |
Loan modification, term extension |  | 17 months |  | 9 months |
Middle market loans | Principal forgiveness and term extension |  |  |  |  |
Financing Receivable, Modified [Line Items] |  |  |  |  |
Loan modification, amortized cost | [1] | $ 9 |  | $ 35 |
Loan modification, percent of total amortized cost |  | 0.20% |  | 0.80% |
Loan modification, term extension |  | 43 months |  | 33 months |
Loan modification, principal forgiven |  | $ 6 |  | $ 40 |
Middle market loans | Principal forgiveness, term extension, and interest rate reduction |  |  |  |  |
Financing Receivable, Modified [Line Items] |  |  |  |  |
Loan modification, amortized cost | [1] | $ 13 |  | $ 13 |
Loan modification, percent of total amortized cost |  | 0.30% |  | 0.30% |
Loan modification, term extension |  | 45 months |  | 45 months |
Loan modification, principal forgiven |  | $ 5 |  | $ 5 |
Weighted-average interest rate before modification, duration |  | 10.50% |  | 10.50% |
Weighted-average interest rate after modification, duration |  | 9.50% |  | 9.50% |
Middle market loans | Principal forgiveness |  |  |  |  |
Financing Receivable, Modified [Line Items] |  |  |  |  |
Loan modification, amortized cost | [1] |  |  | $ 6 |
Loan modification, percent of total amortized cost |  |  |  | 0.10% |
Loan modification, principal forgiven |  |  |  | $ 4 |
Middle market loans | Other-than-insignificant payment delays |  |  |  |  |
Financing Receivable, Modified [Line Items] |  |  |  |  |
Loan modification, amortized cost | [1] |  |  | $ 28 |
Loan modification, percent of total amortized cost |  |  |  | 0.70% |
Loan modification, deferral period, duration |  |  |  | 36 months |
Transitional real estate loans | Term extension |  |  |  |  |
Financing Receivable, Modified [Line Items] |  |  |  |  |
Loan modification, amortized cost | [1] |  |  | $ 158 |
Loan modification, percent of total amortized cost |  |  |  | 3.90% |
Loan modification, term extension |  |  |  | 20 months |
Transitional real estate loans | Term extension and interest rate reduction |  |  |  |  |
Financing Receivable, Modified [Line Items] |  |  |  |  |
Loan modification, amortized cost | [1] |  |  | $ 155 |
Loan modification, percent of total amortized cost |  |  |  | 3.80% |
Loan modification, term extension |  |  |  | 26 months |
Weighted-average interest rate before modification, duration |  |  |  | 4.80% |
Weighted-average interest rate after modification, duration |  |  |  | 4.30% |
Transitional real estate loans | Other-than-insignificant payment delays |  |  |  |  |
Financing Receivable, Modified [Line Items] |  |  |  |  |
Loan modification, amortized cost | [1] |  | $ 123 |  | $ 198
Loan modification, percent of total amortized cost |  |  | 2.30% |  | 3.80%
Loan modification, deferral period, duration |  |  | 24 months |  | 29 months
Transitional real estate loans | Other-than-insignificant payment delays and interest rate reduction |  |  |  |  |
Financing Receivable, Modified [Line Items] |  |  |  |  |
Loan modification, amortized cost | [1] |  |  |  | $ 216
Loan modification, percent of total amortized cost |  |  |  |  | 4.10%
Weighted-average interest rate before modification, duration |  |  |  |  | 7.90%
Weighted-average interest rate after modification, duration |  |  |  |  | 6.60%
Loan modification, deferral period, duration |  |  |  |  | 47 months
[1] | Net of allowance for credit losses

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