Organization - Additional Information (Detail)	Mar. 23, 2012 Room	Mar. 06, 2012 Room
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of hotels	120
Number of rooms	64,004
European Joint Venture
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of hotels	13
Number of rooms	4,188
European Joint Venture | Fund I
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of hotels	11
Number of rooms	3,512
Ownership Interests	32.10%
European Joint Venture | Fund II
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of hotels	2
Number of rooms	676
Ownership Interests	33.40%
Asian Joint Venture
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Ownership Interests	25.00%
Asian Joint Venture | INDIA
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of hotels	7
Number of rooms	1,750
Asian Joint Venture | INDIA | Bangalore
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of hotels	2
Asian Joint Venture | INDIA | Other Areas
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of hotels	5
Asian Joint Venture | Citigate Perth
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of rooms	278	278
HOST HOTELS & RESORTS, INC.
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Percentage of the common OP Units	98.60%