REVENUE FROM CONTRACTS WITH CUSTOMERS - Schedule of Disaggregated Revenues by Product and Segment from Contracts with Customers (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Disaggregation of Revenue [Line Items]
Revenues	$ 1,358	$ 1,266	$ 2,643	$ 2,414
Real Estate Sales and Financing Segment
Disaggregation of Revenue [Line Items]
Revenues	809	760	1,563	1,405
Resort Operations and Club Management Segment
Disaggregation of Revenue [Line Items]
Revenues	399	378	781	748
Sales of VOIs, net
Disaggregation of Revenue [Line Items]
Revenues	507	469	962	847
Sales of VOIs, net \| Real Estate Sales and Financing Segment
Disaggregation of Revenue [Line Items]
Revenues	507	469	962	847
Fee-for-service commissions, package sales and other fees
Disaggregation of Revenue [Line Items]
Revenues	158	165	319	307
Fee-for-service commissions, package sales and other fees \| Real Estate Sales and Financing Segment
Disaggregation of Revenue [Line Items]
Revenues	158	165	319	307
Interest income \| Real Estate Sales and Financing Segment
Disaggregation of Revenue [Line Items]
Revenues	133	114	258	229
Other financing revenue \| Real Estate Sales and Financing Segment
Disaggregation of Revenue [Line Items]
Revenues	11	12	24	22
Club management \| Resort Operations and Club Management Segment
Disaggregation of Revenue [Line Items]
Revenues	72	70	142	142
Resort management \| Resort Operations and Club Management Segment
Disaggregation of Revenue [Line Items]
Revenues	117	113	232	224
Rental \| Resort Operations and Club Management Segment
Disaggregation of Revenue [Line Items]
Revenues	194	180	377	354
Ancillary services \| Resort Operations and Club Management Segment
Disaggregation of Revenue [Line Items]
Revenues	$ 16	$ 15	$ 30	$ 28