SHARE-BASED COMPENSATION - Recognized share-based compensation expenses (Details) - CNY (¥) ¥ in Millions |
6 Months Ended | |
|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| SHARE-BASED COMPENSATION | ||
| Recognized share-based compensation expenses | ¥ 265 | ¥ 247 |
| Hotel operating costs | ||
| SHARE-BASED COMPENSATION | ||
| Recognized share-based compensation expenses | 16 | 16 |
| Selling and marketing expenses | ||
| SHARE-BASED COMPENSATION | ||
| Recognized share-based compensation expenses | 6 | 4 |
| General and administrative expenses | ||
| SHARE-BASED COMPENSATION | ||
| Recognized share-based compensation expenses | ¥ 243 | ¥ 227 |