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Fair Value Measurements - Carrying Values and Estimated Fair Values of our Financial Instruments not Measured at Fair value (Details) - USD ($) $ in Millions | Mar. 31, 2025 | Dec. 31, 2024 | Mar. 31, 2024
--- | --- | --- | ---
Assets: |  |  |
Mortgage and other loans receivable | $ 3,737 | $ 3,868 |
Other investments | 9,987 | 9,828 |
Short-term investments | 10,601 | 14,462 |
Cash | 1,393 | 1,302 | $ 1,406
Other assets | 4,724 | 4,735 |
Liabilities: |  |  |
Fortitude Re funds withheld payable | 3,215 | 3,207 |
Consolidated Entities, Excluding Consolidated Investments |  |  |
Liabilities: |  |  |
Long-term debt | 8,596 | 8,764 |
Consolidated Investments, Including Variable Interest Entities, Primarily Beneficiary |  |  |
Liabilities: |  |  |
Long-term debt | 157 | 158 |
Estimated Fair Value |  |  |
Assets: |  |  |
Mortgage and other loans receivable | 3,672 | 3,752 |
Other investments | 551 | 583 |
Short-term investments | 4,389 | 4,673 |
Cash | 1,393 | 1,302 |
Other assets | 13 | 15 |
Liabilities: |  |  |
Fortitude Re funds withheld payable | 3,294 | 3,335 |
Estimated Fair Value | Consolidated Entities, Excluding Consolidated Investments |  |  |
Liabilities: |  |  |
Long-term debt | 8,086 | 8,221 |
Estimated Fair Value | Consolidated Investments, Including Variable Interest Entities, Primarily Beneficiary |  |  |
Liabilities: |  |  |
Long-term debt | 157 | 158 |
Carrying Value |  |  |
Assets: |  |  |
Mortgage and other loans receivable | 3,737 | 3,868 |
Other investments | 551 | 583 |
Short-term investments | 4,389 | 4,673 |
Cash | 1,393 | 1,302 |
Other assets | 13 | 15 |
Liabilities: |  |  |
Fortitude Re funds withheld payable | 3,294 | 3,335 |
Carrying Value | Consolidated Entities, Excluding Consolidated Investments |  |  |
Liabilities: |  |  |
Long-term debt | 8,596 | 8,764 |
Carrying Value | Consolidated Investments, Including Variable Interest Entities, Primarily Beneficiary |  |  |
Liabilities: |  |  |
Long-term debt | 157 | 158 |
Level 1 | Estimated Fair Value |  |  |
Assets: |  |  |
Mortgage and other loans receivable | 0 | 0 |
Other investments | 0 | 0 |
Short-term investments | 0 | 0 |
Cash | 1,393 | 1,302 |
Other assets | 13 | 15 |
Liabilities: |  |  |
Fortitude Re funds withheld payable | 0 | 0 |
Level 1 | Estimated Fair Value | Consolidated Entities, Excluding Consolidated Investments |  |  |
Liabilities: |  |  |
Long-term debt | 0 | 0 |
Level 1 | Estimated Fair Value | Consolidated Investments, Including Variable Interest Entities, Primarily Beneficiary |  |  |
Liabilities: |  |  |
Long-term debt | 0 | 0 |
Level 2 | Estimated Fair Value |  |  |
Assets: |  |  |
Mortgage and other loans receivable | 339 | 339 |
Other investments | 546 | 578 |
Short-term investments | 4,389 | 4,673 |
Cash | 0 | 0 |
Other assets | 0 | 0 |
Liabilities: |  |  |
Fortitude Re funds withheld payable | 0 | 0 |
Level 2 | Estimated Fair Value | Consolidated Entities, Excluding Consolidated Investments |  |  |
Liabilities: |  |  |
Long-term debt | 8,085 | 7,981 |
Level 2 | Estimated Fair Value | Consolidated Investments, Including Variable Interest Entities, Primarily Beneficiary |  |  |
Liabilities: |  |  |
Long-term debt | 0 | 0 |
Level 3 | Estimated Fair Value |  |  |
Assets: |  |  |
Mortgage and other loans receivable | 3,333 | 3,413 |
Other investments | 5 | 5 |
Short-term investments | 0 | 0 |
Cash | 0 | 0 |
Other assets | 0 | 0 |
Liabilities: |  |  |
Fortitude Re funds withheld payable | 3,294 | 3,335 |
Level 3 | Estimated Fair Value | Consolidated Entities, Excluding Consolidated Investments |  |  |
Liabilities: |  |  |
Long-term debt | 1 | 240 |
Level 3 | Estimated Fair Value | Consolidated Investments, Including Variable Interest Entities, Primarily Beneficiary |  |  |
Liabilities: |  |  |
Long-term debt | $ 157 | $ 158 |

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