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Contracts Accounted for as Credit Derivatives - Credit Derivatives Net Par Outstanding by Sector (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Net Par Outstanding on Credit Derivatives |  |
Net Par Outstanding | $ 4,212 | $ 3,608
Net Fair Value Asset (Liability) | (29) | (50)
Public finance | U.S. |  |
Net Par Outstanding on Credit Derivatives |  |
Net Par Outstanding | 1,025 | 1,149
Net Fair Value Asset (Liability) | (12) | (15)
Public finance | Non U.S. |  |
Net Par Outstanding on Credit Derivatives |  |
Net Par Outstanding | 2,044 | 1,522
Net Fair Value Asset (Liability) | (15) | (20)
Structured finance | U.S. |  |
Net Par Outstanding on Credit Derivatives |  |
Net Par Outstanding | 150 | 322
Net Fair Value Asset (Liability) | (2) | (13)
Structured finance | Non U.S. |  |
Net Par Outstanding on Credit Derivatives |  |
Net Par Outstanding | 993 | 615
Net Fair Value Asset (Liability) | $ 0 | $ (2)

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- References No definition available. + Details
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- Definition Represents the outstanding principal amounts of the underlying insured obligations that are accounted for as credit derivatives, net of protection purchased. + References No definition available. + Details
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- Definition Fair value of credit risk derivative asset after deduction of credit risk derivative liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 4K -Subparagraph (c) -SubTopic 10 -Topic 815 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4K + Details
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