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Expected Loss to be Paid (Recovered) - Key Assumptions in Base Case Expected Loss First Lien RMBS (Details) - U.S. - RMBS | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Schedule of Expected Losses to be Paid [Line Items] |  |
Initial loss severity |  | 50.00%
Base Scenario | First Lien |  |
Schedule of Expected Losses to be Paid [Line Items] |  |
Future recovery for deferred principal balances | 50.00% | 30.00%
Minimum |  |
Schedule of Expected Losses to be Paid [Line Items] |  |
Plateau CDR | 0.00% | 0.00%
Final CDR | 0.00% | 0.00%
Initial loss severity | 40.00% |
Liquidation rates | 20.00% | 20.00%
Maximum |  |
Schedule of Expected Losses to be Paid [Line Items] |  |
Plateau CDR | 8.80% | 10.00%
Final CDR | 0.40% | 0.50%
Initial loss severity | 50.00% |
Liquidation rates | 50.00% | 65.00%
Weighted Average |  |
Schedule of Expected Losses to be Paid [Line Items] |  |
Plateau CDR | 3.40% | 4.20%
Final CDR | 0.20% | 0.20%
Initial loss severity | 43.10% |

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