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RELATED-PARTY TRANSACTIONS - Legal Services Narrative (Details) - Related Party - Related Party Legal Services - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Related Party Transaction |  |  |  |  |
General and administrative | $ 2 | $ 5 | $ 25 | $ 16 |
Due to related party | $ 12 |  | $ 12 |  | $ 2

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