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INVESTMENTS - Nonaccrual Loans (Details) - USD ($) $ in Millions | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |  |  |
Total | $ 10,559 |  | $ 11,224 |
Total, nonaccrual status | 467 |  | 486 |
Total, 90 days or more past due and still accruing | 0 |  | 0 |
Transitional real estate loans |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total | 4,317 |  | 4,902 |
Total, nonaccrual status | 385 |  | 378 |
Commercial mortgage loans |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total | 1,442 |  | 1,537 |
Total, nonaccrual status | 0 |  | 0 |
Middle market loans |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total | 4,387 |  | 4,423 |
Total, nonaccrual status | 82 |  | 108 |
Other loans |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total | 413 |  | 362 |
Total, nonaccrual status | 0 |  | 0 |
Current |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total | 10,015 |  | 10,558 |
Current | Transitional real estate loans |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total | 3,883 |  | 4,364 |
Current | Commercial mortgage loans |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total | 1,442 |  | 1,537 |
Current | Middle market loans |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total | 4,277 |  | 4,295 |
Current | Other loans |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total | 413 |  | 362 |
Less Than 90 Days Past Due |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total | 97 |  | 258 |
Less Than 90 Days Past Due | Transitional real estate loans |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total | 49 |  | 195 |
Less Than 90 Days Past Due | Commercial mortgage loans |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total | 0 |  | 0 |
Less Than 90 Days Past Due | Middle market loans |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total | 48 |  | 63 |
Less Than 90 Days Past Due | Other loans |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total | 0 |  | 0 |
90 Days or More Past Due |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total | 447 | [1] | 408 | [2]
90 Days or More Past Due | Transitional real estate loans |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total | 385 | [1] | 343 | [2]
90 Days or More Past Due | Commercial mortgage loans |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total | 0 | [1] | 0 | [2]
90 Days or More Past Due | Middle market loans |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total | 62 | [1] | 65 | [2]
90 Days or More Past Due | Other loans |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total | 0 | [1] | 0 | [2]
Total Past Due |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total | 544 |  | 666 |
Total Past Due | Transitional real estate loans |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total | 434 |  | 538 |
Total Past Due | Commercial mortgage loans |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total | 0 |  | 0 |
Total Past Due | Middle market loans |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total | 110 |  | 128 |
Total Past Due | Other loans |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total | $ 0 |  | $ 0 |
[1] | As of September 30, 2025, there were no loans that were 90 days or more past due that continued to accrue interest.
[2] | As of December 31, 2024, there were no loans that were 90 days or more past due that continued to accrue interest.

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