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v3.25.1

Outstanding Exposure - Additional Information (Details) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 USD ($) Category | Dec. 31, 2024 USD ($)
Schedule of Insured Financial Obligations [Line Items] |  |
Number of surveillance categories | Category | 3 |
Loss mitigation securities | $ 1,200 | $ 1,200
Aircraft residual value insurance (RVI) |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Residual value insurance policies exposure downgraded | 147 | 147
Specialty business, contingent, gross par | 90 |
Specialty business, contingent, net par | 51 |
Specialty Insurance and Reinsurance, Net Par | 87 | 87
Aircraft residual value insurance (RVI) | BIG |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Residual value insurance policies exposure downgraded | 5 | 5
Specialty Insurance and Reinsurance, Net Par | 5 | $ 5
Commitment to Provide Guarantees | Public finance |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Outstanding commitments to provide guaranties | 956 |
Commitment to Provide Guarantees | Structured finance |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Outstanding commitments to provide guaranties | $ 1,600 |
Minimum |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Probability of paying more claims than being reimbursed (as a percent) | 50.00% |

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- Definition Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions. + References No definition available. + Details
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