FAIR VALUE - Narrative (Details) - USD ($) |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
Dec. 31, 2025 |
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| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | |||||
| Fair Value | $ 33,058,000,000 | $ 33,058,000,000 | $ 34,573,000,000 | ||
| Transfers in/(out) of Level 3 and reclassification of securities in/(out) of investment categories | 0 | $ 0 | 0 | $ 0 | |
| Other invested assets | 1,609,000,000 | 1,609,000,000 | 1,372,000,000 | ||
| Investments | Fair Value | |||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | |||||
| Other invested assets | 204,000,000 | 204,000,000 | 233,000,000 | ||
| Fixed maturities | |||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | |||||
| Fair Value | $ 2,800,000,000 | $ 2,800,000,000 | $ 2,500,000,000 | ||
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- Definition Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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/2003/role/exampleRef
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- Definition Amount of transfer of financial instrument classified as an asset into (out of) level 3 of the fair value hierarchy. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of assets classified as other. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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