XML 56 R40.htm IDEA: XBRL DOCUMENT
v3.24.2.u1

Summary of Significant Accounting Policies - Additional Information (Detail) | 6 Months Ended
--- | ---
Jun. 30, 2024 partnership
Significant Accounting Policies [Line Items] |
Number of partnerships | 4
Variable Interest Entity, Not Primary Beneficiary |
Significant Accounting Policies [Line Items] |
Number of partnerships | 2
Variable Interest Entity, Not Primary Beneficiary | Minimum |
Significant Accounting Policies [Line Items] |
General partner and limited partner interest | 11.00%
Variable Interest Entity, Not Primary Beneficiary | Maximum |
Significant Accounting Policies [Line Items] |
General partner and limited partner interest | 21.00%
Host L.P. |
Significant Accounting Policies [Line Items] |
Investment ownership percentage | 99.00%

X
- Definition Significant accounting policies. + References No definition available. + Details
Name: | hst_SignificantAccountingPoliciesLineItems
Namespace Prefix: | hst_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Variable Interest Entity, Number Of Partnerships + References No definition available. + Details
Name: | hst_VariableInterestEntityNumberOfPartnerships
Namespace Prefix: | hst_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The parent entity's interest in net assets of the subsidiary, expressed as a percentage. + References No definition available. + Details
Name: | us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 5A -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481203/810-10-50-5A + Details
Name: | us-gaap_VariableInterestEntityOwnershipPercentage
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=us-gaap_VariableInterestEntityNotPrimaryBeneficiaryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=hst_HostLimitedPartnershipInterestMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |