INVENTORY - Additional Information (Details) - USD ($) $ in Millions |
3 Months Ended | ||
|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
Dec. 31, 2025 |
|
| Inventory [Line Items] | |||
| Real estate inventory, increase true up | $ 5 | $ 13 | |
| Amount of completed vacation ownership units classified as property and equipment | 230 | $ 224 | |
| Inventory deposits | 34 | 31 | |
| Other Assets | |||
| Inventory [Line Items] | |||
| Inventory deposits | 25 | 26 | |
| Accounts Receivable | |||
| Inventory [Line Items] | |||
| Inventory deposits | $ 9 | $ 5 | |