Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2024
Accounting Policies [Abstract]
Basis of accounting	We have condensed or omitted certain information and footnote disclosures normally included in financial statements presented in accordance with U.S. generally accepted accounting principles, or GAAP, in the accompanying unaudited condensed consolidated financial statements. We believe the disclosures made herein are adequate to prevent the information presented from being misleading. However, the financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in our Annual Report on Form 10–K for the year ended December 31, 2023.
Use of estimates	The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
Consolidation, variable interest entities	Four of the partnerships in which we own an interest are considered variable interest entities ("VIEs"), as the general partner of these partnerships maintains control over the decisions that most significantly impact such partnerships. These VIEs include the operating partnership, Host L.P., which is consolidated by Host Inc., of which Host Inc. is the sole general partner and holds approximately 99% of the limited partner interests; the consolidated partnership that owns the Houston Airport Marriott at George Bush Intercontinental; and two unconsolidated partnerships that own hotel properties, of which we hold limited partner interests ranging from 11% - 21%. Host Inc.’s sole significant asset is its investment in Host L.P. and, consequently, substantially all of Host Inc.’s assets and liabilities consists of the assets and liabilities of Host L.P. All of Host Inc.’s debt is an obligation of Host L.P. and may be settled only with assets of Host L.P.