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STOCK-BASED COMPENSATION - Performance Restricted Stock Units and Phantom Stock Awards (Details) - Phantom Share Units (PSUs) - USD ($) shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Stock-based compensation
Accrued compensation cost liability	$ 5	$ 6
Unrecognized compensation cost	$ 2	$ 2
Equivalent common shares (in shares)	96	126

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