v3.26.1
Equity of Host Inc. and Capital of Host L.P. - Additional Information (Details)
$ / shares in Units, $ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
USD ($)
$ / shares
shares
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
$ / shares
shares
Jun. 30, 2025
USD ($)
Dec. 31, 2025
Stockholders Equity Note [Line Items]          
Share repurchase program, shares repurchased (in shares) | shares 0   4,000,000.0    
Shares repurchased, average price (in dollars per share)     $ 18.97    
Repurchase of common stock | $   $ 105 $ 75 $ 205  
Amount available for repurchase | $ $ 405   405    
Stock issuance remaining capacity | $ $ 600   $ 600    
Dividend declared (in dollars per share) $ 0.92        
S 2026 Q2 Dividends          
Stockholders Equity Note [Line Items]          
Dividend declared (in dollars per share) 0.72        
O 2026 Q2 Dividends          
Stockholders Equity Note [Line Items]          
Dividend declared (in dollars per share) $ 0.20        
Common Stock | Equity Distribution Program          
Stockholders Equity Note [Line Items]          
Shares issued (in shares) | shares     0    
HOST HOTELS & RESORTS L.P.          
Stockholders Equity Note [Line Items]          
Shares issuable upon conversion of one common OP unit (in shares) 1.021494   1.021494   1.021494
Repurchase of common stock | $   $ 105 $ 75 $ 205  
Distribution per share (in dollars per unit) $ 0.9397745   $ 0.9397745    
Host L.P.          
Stockholders Equity Note [Line Items]          
Percentage of the common OP units 99.00%   99.00%