Business Acquisition, Equity Interest Issued or Issuable, Number of Units Issued

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- Definition

Business Acquisition, Equity Interest Issued or Issuable, Value Per Unit

+ Details

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- Definition

Number of Rooms

+ Details

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Period Type:	instant

- Definition

Schedule of Cash Flow, Supplemental [Line Items]

+ Details

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- Definition

Shares Issued Upon Conversion of Units

+ Details

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- Definition

Units Converted, Value

+ Details

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Period Type:	duration

- Definition

Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity.

+ References

+ Details

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- Definition

Percentage of voting equity interests acquired in the business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 68
-Subparagraph c
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6909870&loc=d3e1392-128463

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- Definition

The amount of acquisition cost of a business combination allocated to notes payables and long-term debt assumed from the acquired entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 51
-Subparagraph e
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 98-1
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 37
-Subparagraph g
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

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- Definition

The amount of debt premium that was originally recognized at the issuance of the instrument that has yet to be amortized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 21
-Paragraph 16, 20
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400

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Balance Type:	credit
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- Definition

The fair value of stock issued in noncash financing activities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 32
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

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Supplemental Disclosure of Noncash Investing and Financing Activities - Additional Information (Detail) In Millions, unless otherwise specified	6 Months Ended						6 Months Ended
	Jun. 17, 2011 HOST HOTELS & RESORTS, INC. USD ($)	Jun. 18, 2010 HOST HOTELS & RESORTS, INC. USD ($)	Mar. 17, 2011 HOST HOTELS & RESORTS, INC. Manchester Grand Hyatt San Diego Room	Mar. 17, 2011 HOST HOTELS & RESORTS, INC. Manchester Grand Hyatt San Diego Common Units USD ($)	Apr. 29, 2011 HOST HOTELS & RESORTS, INC. Hilton Melbourne South Wharf USD ($) Room	Apr. 29, 2011 HOST HOTELS & RESORTS, INC. Hilton Melbourne South Wharf AUD	Jun. 17, 2011 HOST HOTELS & RESORTS L.P. USD ($)	Jun. 18, 2010 HOST HOTELS & RESORTS L.P. USD ($)	Mar. 17, 2011 HOST HOTELS & RESORTS L.P. Manchester Grand Hyatt San Diego Room	Mar. 17, 2011 HOST HOTELS & RESORTS L.P. Manchester Grand Hyatt San Diego Common Units USD ($)	Apr. 29, 2011 HOST HOTELS & RESORTS L.P. Hilton Melbourne South Wharf USD ($) Room	Apr. 29, 2011 HOST HOTELS & RESORTS L.P. Hilton Melbourne South Wharf AUD	Mar. 25, 2011 Manchester Grand Hyatt San Diego Room	Apr. 29, 2011 Hilton Melbourne South Wharf USD ($) Room	Apr. 29, 2011 Hilton Melbourne South Wharf AUD
Schedule of Cash Flow, Supplemental [Line Items]
Shares issued for converted units, shares	0.2	1.0					0.2	1.0
Value of shares issued	$ 4	$ 12
Ownership percentage acquired					75.00%	75.00%					75.00%	75.00%		75.00%	75.00%
Mortgage debt at fair value, premium					0.5						0.5
Mortgage debt assumed in connection with acquisition					86	80					86	80		86	80
Number of rooms			1,625		364	364			1,625		364	364	1,625	364	364
OP Units exchanged for ownership right, units				0.3						300,000.0
OP Units exchanged for ownership right, value per unit				18.741						18.741
OP Units exchanged for ownership right, value				6						6
Common operating partnership units, value							$ 4	$ 12