Organization - Additional Information (Detail)	Sep. 30, 2014 Hotel
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Number of hotels	115
Australia
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Number of hotels	1
European Joint Venture
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Number of hotels	20
Number of funds	2
European Joint Venture | Fund I
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Investment ownership percentage	32.10%
Number of hotels	11
European Joint Venture | Fund II
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Investment ownership percentage	33.40%
Number of hotels	9
Asian Joint Venture
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Investment ownership percentage	25.00%
Asian Joint Venture | Australia
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Number of hotels	1
Asian Joint Venture | India
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Number of hotels	3
Number of hotels in various stages of development	4
HOST HOTELS & RESORTS, INC.
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Percentage of the common OP Units	99.00%