BUSINESS SEGMENTS - Schedule of Capital Expenditures for Property and Equipment Reconciled to Consolidated Amounts (Details) - USD ($) $ in Millions |
Sep. 30, 2026 |
Sep. 30, 2025 |
|---|---|---|
| Segment Reporting Capital Expenditure For Property And Equipment Reconciling Item [Line Items] | ||
| Total capital expenditures | $ 90 | $ 145 |
| Operating Segments | ||
| Segment Reporting Capital Expenditure For Property And Equipment Reconciling Item [Line Items] | ||
| Total capital expenditures | 70 | 102 |
| Operating Segments | Real estate sales and financing | ||
| Segment Reporting Capital Expenditure For Property And Equipment Reconciling Item [Line Items] | ||
| Total capital expenditures | 69 | 100 |
| Operating Segments | Resort operations and club management | ||
| Segment Reporting Capital Expenditure For Property And Equipment Reconciling Item [Line Items] | ||
| Total capital expenditures | 1 | 2 |
| Corporate | ||
| Segment Reporting Capital Expenditure For Property And Equipment Reconciling Item [Line Items] | ||
| Total capital expenditures | $ 20 | $ 43 |