v3.26.1
Fair Value Measurements - Fair Value of Debt and Hierarchy Level Used to Estimate Fair Values (Detail) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Carrying Amount | Level 3 | HHV Mortgage Loan    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Mortgage loan $ 1,275 $ 1,275
Carrying Amount | Level 3 | Other mortgage loans    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Mortgage loan 231 355
Carrying Amount | Level 3 | 2024 Term Loan    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Mortgage loan 200 200
Carrying Amount | Level 3 | Delayed Draw Term Loan (DDTL)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Mortgage loan 200 0
Carrying Amount | Level 1 | 2028 Senior Notes    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Mortgage loan 725 725
Carrying Amount | Level 1 | 2029 Senior Notes    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Mortgage loan 750 750
Carrying Amount | Level 1 | 2030 Senior Notes    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Mortgage loan 550 550
Fair Value | Level 3 | HHV Mortgage Loan    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Mortgage loan 1,263 1,248
Fair Value | Level 3 | Other mortgage loans    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Mortgage loan 229 351
Fair Value | Level 3 | 2024 Term Loan    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Mortgage loan 198 200
Fair Value | Level 3 | Delayed Draw Term Loan (DDTL)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Mortgage loan 183 0
Fair Value | Level 1 | 2028 Senior Notes    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Mortgage loan 725 725
Fair Value | Level 1 | 2029 Senior Notes    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Mortgage loan 734 732
Fair Value | Level 1 | 2030 Senior Notes    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Mortgage loan $ 564 $ 564