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DEBT AND EQUITY SECURITIES - Schedule of Changes in Fair Value of Net Unrealized Gains Recognized (Details) - Convertible Debt Securities - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |  |
Amortized cost | $ 30 |  | $ 30
Allowance for credit losses | (5) |  | 0
Gross unrealized gains | 12 |  | 12
Gross unrealized losse | (12) | $ 0 | 0
Fair value | $ 25 |  | $ 42

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