XML 566 R120.htm IDEA: XBRL DOCUMENT v3.25.4
Leases - Additional Information (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2025
USD ($)
option
lease
Dec. 31, 2024
USD ($)
Disclosure Of Information Leases [Line Items]    
Percentage of right of use assets for high ranked priority assets 95.00% 95.00%
Weighted average remaining lease term 57 years 56 years
Undiscounted operating lease payments outstanding $ 3,170 $ 3,191
Percentage of undiscounted cash flows relating to lease liabilities 95.00% 95.00%
Lease liabilities $ 3,330 $ 3,366
Percentage of lease liabilities implicit rate 9.70%  
Lease liabilities $ 406 $ 414
Disclosure of quantitative information about right-of-use assets [line items]    
Percentage of right of use assets for high ranked priority assets 95.00% 95.00%
Right-of-use assets    
Disclosure Of Information Leases [Line Items]    
Number of lease extension options | option 2  
Description of extended lease term 20 years  
Operating Leases Excluding Inter Continental Boston lease    
Disclosure Of Information Leases [Line Items]    
Weighted average remaining lease term 6 years 7 years
Eight Priority Leases    
Disclosure Of Information Leases [Line Items]    
Number of high ranked priority leases | lease 8  
Lease liabilities $ 339  
InterContinental Boston and the US corporate headquarters    
Disclosure Of Information Leases [Line Items]    
Lease liabilities $ 326 $ 335
Minimum    
Disclosure Of Information Leases [Line Items]    
Lease term 1 year  
Maximum    
Disclosure Of Information Leases [Line Items]    
Lease term 99 years  
Lease incremental borrowing rates 9.90%