VACATION OWNERSHIP NOTES RECEIVABLE - Schedule of Interest Income Associated With Vacation Ownership Notes Receivable (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||
| Total interest income associated with vacation ownership notes receivable | $ 92 | $ 88 | $ 271 | $ 260 |
| Interest income - securitized vacation ownership notes receivable | ||||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||
| Total interest income associated with vacation ownership notes receivable | 81 | 74 | 238 | 221 |
| Interest income - non-securitized vacation ownership notes receivable | ||||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||
| Total interest income associated with vacation ownership notes receivable | $ 11 | $ 14 | $ 33 | $ 39 |