Investments - Restricted Assets (Details) $ in Millions |
3 Months Ended | 12 Months Ended | |
|---|---|---|---|
|
Mar. 31, 2025
USD ($)
syndicate
|
Dec. 31, 2024
USD ($)
syndicate
|
Mar. 31, 2024
USD ($)
|
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| Line of Credit Facility [Line Items] | |||
| Restricted cash and cash equivalents | $ 311 | $ 456 | $ 310 |
| Collateral in trust for third party agreements | 4,601 | 4,832 | |
| Assets on deposit with regulatory authorities | 66 | 63 | |
| Funds at Lloyd's | 219 | 229 | |
| Total restricted assets | $ 4,921 | $ 5,169 | |
| Number of syndicates | syndicate | 1 | 1 | |
| Asset Pledged as Collateral | |||
| Line of Credit Facility [Line Items] | |||
| Collateral for secured letter of credit facilities | $ 35 | $ 45 |
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- Definition Funds In Syndicate No definition available.
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- Definition Number Of Syndicates No definition available.
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- Definition The total amount of cash and securities held by third party trustees pursuant to terms of debt instruments or other agreements as of the date of each statement of financial position presented, which can be used by the trustee only to pay the noncurrent portion of specified obligations. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of restricted investment in debt security measured at fair value with change in fair value recognized in net income (trading). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The carrying amount of the asset transferred to a third party to serve as a deposit, which typically serves as security against failure by the transferor to perform under terms of an agreement. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of cash and cash equivalent restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Cash and investments whose use in whole or in part is restricted for the long-term, generally by contractual agreements or regulatory requirements. For use in an unclassified balance sheet. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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