VARIABLE INTEREST ENTITIES - Schedule of Interest Income and Expense Recognized as a Result of Our Involvement with Variable Interest Entities (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Variable Interest Entity [Line Items] | ||||
| Interest income | $ 89 | $ 86 | $ 179 | $ 172 |
| Variable Interest Entity | ||||
| Variable Interest Entity [Line Items] | ||||
| Interest income | 79 | 157 | ||
| Interest expense | 29 | 57 | ||
| Debt issuance cost amortization | 3 | 6 | ||
| Variable Interest Entity | Vacation Ownership Notes Receivable Securitizations | ||||
| Variable Interest Entity [Line Items] | ||||
| Interest income | 76 | 143 | ||
| Interest expense | 27 | 52 | ||
| Debt issuance cost amortization | 3 | 6 | ||
| Variable Interest Entity | Warehouse Credit Facility | ||||
| Variable Interest Entity [Line Items] | ||||
| Interest income | 3 | 14 | ||
| Interest expense | 2 | 5 | ||
| Debt issuance cost amortization | $ 0 | $ 0 | ||