Earnings Per Common Share (Unit) - Additional Information (Details) - HOST HOTELS & RESORTS L.P. - Redeemable Non Controlling Interests - shares shares in Millions	Jun. 30, 2026	Dec. 31, 2025
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Common units outstanding (in shares)	9.4	9.4
Number of common shares if converted (in shares)	9.6

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 480
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481648/480-10-50-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 480
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481648/480-10-50-4

Name:	us-gaap_SharesSubjectToMandatoryRedemptionBySettlementTermsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration