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BUSINESS SEGMENTS - Schedule of Segment Operating Performance Reconciled to Consolidated Amounts (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	$ 1,300	$ 1,306	$ 3,714	$ 3,697
Cost reimbursements
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	132	130	393	381
Real estate sales and financing
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	789	814	2,194	2,241
Resort operations and club management
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	379	362	1,127	1,075
Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	1,195	1,197	3,396	3,370
Operating Segments | Real estate sales and financing
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	789	814	2,194	2,241
Operating Segments | Resort operations and club management
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	406	383	1,202	1,129
Intersegment eliminations
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	$ (27)	$ (21)	$ (75)	$ (54)

X

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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