REVENUE FROM CONTRACTS WITH CUSTOMERS - Schedule of Disaggregated Revenues by Product and Segment from Contracts with Customers (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Disaggregation of Revenue [Line Items]
Revenues	$ 1,961	$ 1,300	$ 4,604	$ 3,714
Real Estate Sales and Financing Segment
Disaggregation of Revenue [Line Items]
Revenues	1,418	789	2,981	2,194
Resort Operations and Club Management Segment
Disaggregation of Revenue [Line Items]
Revenues	390	379	1,171	1,127
Sales of VOIs, net
Disaggregation of Revenue [Line Items]
Revenues	1,124	473	2,086	1,320
Sales of VOIs, net \| Real Estate Sales and Financing Segment
Disaggregation of Revenue [Line Items]
Revenues	1,124	473	2,086	1,320
Fee-for-service commissions, package sales and other fees
Disaggregation of Revenue [Line Items]
Revenues	145	188	464	495
Fee-for-service commissions, package sales and other fees \| Real Estate Sales and Financing Segment
Disaggregation of Revenue [Line Items]
Revenues	145	188	464	495
Interest income \| Real Estate Sales and Financing Segment
Disaggregation of Revenue [Line Items]
Revenues	141	119	399	348
Other financing revenue \| Real Estate Sales and Financing Segment
Disaggregation of Revenue [Line Items]
Revenues	8	9	32	31
Club management \| Resort Operations and Club Management Segment
Disaggregation of Revenue [Line Items]
Revenues	78	78	220	220
Resort management \| Resort Operations and Club Management Segment
Disaggregation of Revenue [Line Items]
Revenues	118	115	350	339
Rental \| Resort Operations and Club Management Segment
Disaggregation of Revenue [Line Items]
Revenues	179	173	556	527
Ancillary services \| Resort Operations and Club Management Segment
Disaggregation of Revenue [Line Items]
Revenues	$ 15	$ 13	$ 45	$ 41