v3.26.1
INTANGIBLE ASSETS - Narrative (Details) - USD ($)
$ in Millions
6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Dec. 31, 2024
Disclosure of detailed information about intangible assets [line items]      
Total intangible assets $ 964 $ 1,060 $ 899
UK and Ireland Short Stay Real Estate Subsidiary | Trademarks      
Disclosure of detailed information about intangible assets [line items]      
Total intangible assets 959 969  
European Hostels | Trademark Assets and Management Contracts      
Disclosure of detailed information about intangible assets [line items]      
Intangible assets reclassified to assets held for sale $ 80 $ 84