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Cover - USD ($)
 12 Months Ended
Dec. 31, 2023
Feb. 23, 2024
Jun. 30, 2023
Document Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2023    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 001-14625    
Entity Registrant Name HOST HOTELS & RESORTS, INC.    
Entity Incorporation, State or Country Code MD    
Entity Tax Identification Number 53-0085950    
Entity Address, Address Line One 4747 Bethesda Ave    
Entity Address, Address Line Two Suite 1300    
Entity Address, City or Town Bethesda    
Entity Address, State or Province MD    
Entity Address, Postal Zip Code 20814    
City Area Code 240    
Local Phone Number 744-1000    
Title of 12(b) Security Common Stock, $.01 par value    
Entity Common Stock, Shares Outstanding   703,621,808  
Trading Symbol HST    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction false    
Entity Shell Company false    
Entity Public Float     $ 11,832,497,578
Documents Incorporated by Reference
Portions of Host Hotels & Resorts, Inc.’s definitive proxy statement to be filed with the Securities and Exchange Commission and delivered to stockholders in connection with its annual meeting of stockholders to be held on May 15, 2024 are incorporated by reference into Part III of this Form 10-K.
    
Amendment Flag false    
Entity Central Index Key 0001070750    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2023    
HOST HOTELS & RESORTS L.P.      
Document Information [Line Items]      
Entity File Number 0-25087    
Entity Registrant Name HOST HOTELS & RESORTS, L.P.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 52-2095412    
Entity Address, Address Line One 4747 Bethesda Ave    
Entity Address, Address Line Two Suite 1300    
Entity Address, State or Province MD    
Entity Address, Postal Zip Code 20814    
City Area Code 240    
Local Phone Number 744-1000    
Entity Common Stock, Shares Outstanding   698,324,144  
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
Document Financial Statement Error Correction false    
Entity Shell Company false    
Entity Central Index Key 0001061937