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RELATED PARTY TRANSACTIONS - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Mar. 31, 2026	Dec. 31, 2021
Related Party Transaction [Line Items]
Outstanding payables	$ (1,018)	$ (1,268)
Apollo Global Management | Diamond Acquisition
Related Party Transaction [Line Items]
Interest acquired (more than)			20.00%
Related Party
Related Party Transaction [Line Items]
Outstanding payables		$ (3)
Outstanding receivables	3
Affiliated Entity
Related Party Transaction [Line Items]
Reimbursable expenses billed	$ 2

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