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INVESTMENTS - Additional Information (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items] |  |  |  |
AFS securities, gross realized Gain (Loss) |  | $ 0 |  |
AFS securities, gross realized losses | $ 11,000,000 |  | $ 11,000,000 |
AFS securities, gross realized Gain | $ 0 |  |  |
2029 Notes |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Fair value of notes payable |  | 423,000,000 |  | $ 413,000,000
2031 Notes |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Fair value of notes payable |  | $ 396,000,000 |  |

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