v3.19.1
Document and Entity Information - shares
3 Months Ended
Mar. 31, 2019
May 01, 2019
Document Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Mar. 31, 2019  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q1  
Trading Symbol HST  
Entity Registrant Name HOST HOTELS & RESORTS, INC.  
Entity Central Index Key 0001070750  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Common Stock, Shares Outstanding   740,893,637
HOST HOTELS & RESORTS L.P.    
Document Information [Line Items]    
Entity Registrant Name HOST HOTELS & RESORTS L.P.  
Entity Central Index Key 0001061937  
Current Fiscal Year End Date --12-31  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false