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INVESTMENTS - Narrative (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items] |  |  |
AFS securities, gross realized gain (loss) |  | $ 0 |
AFS securities, gross unrealized losses | $ 7,000,000 |  |
Gross unrealized losses related to AFS investments in an unrealized loss position for greater than 12 months | 4,000,000 | $ 0 | $ 0
2029 Notes Payable |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Fair value of notes payable | $ 413,000,000 |  | 443,000,000
2031 Notes Payable |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Fair value of notes payable |  |  | $ 414,000,000

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