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FAIR VALUE - Narrative (Details) - USD ($) $ in Millions | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Fair Value | $ 25,159 | $ 22,236
Fair value of public equity portfolio | 5,600 | 2,700
Other invested assets | 1,029 | 930
Fair Value | Investments |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Other invested assets | 284 | 292
Fixed maturities |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Fair Value | $ 1,900 | $ 1,700

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