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Fair Value Measurement - Fair Value of Financial Instruments Not Carried at Fair Value (Details) - USD ($) $ in Millions | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Carrying amount and estimated fair value financial instruments |  |
Assets of CIVs | $ 378 | $ 366
Other Assets | 698 | 706
Long-term debt | (1,696) | (1,694)
Other liabilities | (410) | (439)
Carrying Amount |  |
Carrying amount and estimated fair value financial instruments |  |
Assets of CIVs | 25 | 19
Other Assets | 75 | 79
Financial guaranty insurance contracts | (2,172) | (2,244)
Long-term debt | (1,696) | (1,694)
Other liabilities | (32) | (15)
Estimated Fair Value |  |
Carrying amount and estimated fair value financial instruments |  |
Assets of CIVs | 25 | 19
Other Assets | 75 | 80
Financial guaranty insurance contracts | (1,860) | (1,811)
Long-term debt | (1,569) | (1,593)
Other liabilities | $ (32) | $ (15)

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- Definition This element represents the net financial guaranty contract position for the entity, consisting of premiums receivable, ceded unearned premium reserve, reinsurance recoverable on unpaid losses, salvage and subrogation recoverable, unearned premium reserve, loss and loss adjustment expense reserve, and reinsurance balances payable, net. + References No definition available. + Details
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