Supplemental Schedule of Noncash Investing and Financing Activities (HOST HOTELS & RESORTS, L.P.) - Additional Information (Detail) In Millions, unless otherwise specified	1 Months Ended		12 Months Ended			1 Months Ended					1 Months Ended		12 Months Ended		1 Months Ended		1 Months Ended		12 Months Ended			1 Months Ended					1 Months Ended		12 Months Ended	1 Months Ended		1 Months Ended
	Apr. 30, 2013 USD ($)	Nov. 09, 2012 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Jun. 28, 2011 Le Meridien Piccadilly USD ($)	Jun. 28, 2011 Le Meridien Piccadilly GBP (£)	Apr. 29, 2011 Hilton Melbourne South Wharf USD ($)	Apr. 29, 2011 Hilton Melbourne South Wharf AUD	Jun. 28, 2011 Fund II	Mar. 17, 2011 Manchester Grand Hyatt San Diego Common Units USD ($)	Nov. 09, 2012 Maui JV USD ($)	Dec. 31, 2012 Maui JV USD ($)	Dec. 31, 2013 Maui JV USD ($)	Nov. 09, 2012 Maui JV Fair Value USD ($)	Nov. 09, 2012 Hyatt Residential Group Maui JV	Mar. 31, 2013 Exchangeable Senior Debentures 3.25% USD ($)	Jun. 30, 2011 Exchangeable Senior Debentures 3.25% USD ($)	Dec. 31, 2013 HOST HOTELS & RESORTS L.P. AND SUBSIDIARIES USD ($)	Dec. 31, 2012 HOST HOTELS & RESORTS L.P. AND SUBSIDIARIES USD ($)	Dec. 31, 2011 HOST HOTELS & RESORTS L.P. AND SUBSIDIARIES USD ($)	Jun. 28, 2011 HOST HOTELS & RESORTS L.P. AND SUBSIDIARIES Le Meridien Piccadilly USD ($)	Jun. 28, 2011 HOST HOTELS & RESORTS L.P. AND SUBSIDIARIES Le Meridien Piccadilly GBP (£)	Apr. 29, 2011 HOST HOTELS & RESORTS L.P. AND SUBSIDIARIES Hilton Melbourne South Wharf USD ($)	Apr. 29, 2011 HOST HOTELS & RESORTS L.P. AND SUBSIDIARIES Hilton Melbourne South Wharf AUD	Jun. 28, 2011 HOST HOTELS & RESORTS L.P. AND SUBSIDIARIES Fund II	Mar. 17, 2011 HOST HOTELS & RESORTS L.P. AND SUBSIDIARIES Manchester Grand Hyatt San Diego Common Units USD ($)	Nov. 09, 2012 HOST HOTELS & RESORTS L.P. AND SUBSIDIARIES Maui JV USD ($)	Dec. 31, 2012 HOST HOTELS & RESORTS L.P. AND SUBSIDIARIES Maui JV USD ($)	Nov. 09, 2012 HOST HOTELS & RESORTS L.P. AND SUBSIDIARIES Maui JV Fair Value USD ($)	Nov. 09, 2012 HOST HOTELS & RESORTS L.P. AND SUBSIDIARIES Hyatt Residential Group Maui JV	Mar. 31, 2013 HOST HOTELS & RESORTS L.P. AND SUBSIDIARIES Exchangeable Senior Debentures 3.25% USD ($)	Jun. 30, 2011 HOST HOTELS & RESORTS L.P. AND SUBSIDIARIES Exchangeable Senior Debentures 3.25% USD ($)
Other Significant Noncash Transactions [Line Items]
Redemptions of limited partnership interests of third parties			$ 6	$ 10	$ 5														$ 6	$ 10	$ 5
Redemptions of limited partner interests for common stock (shares)			0.3	0.6	0.3														0.3	0.6	0.3
Exchangeable Debentures																	174	134														174	134
Debt interest rate																	3.25%	3.25%														3.25%	3.25%
Debt converted into shares of Host Inc. common stock																	11.7	8.8														11.7	8.8
Common OP unit issuances (units)																																11.5	8.6
Contributed land		36				102	64					11			36							102	64					11		36
Advances to and investments in affiliates			415	347								8	15	16					415	347								8
Investment ownership percentage										33.40%		67.00%	67.00%	67.00%												33.40%		67.00%
Gain on sale of the land	21		33	13	7								8						33	13	7								8
Equity method investment outside ownership percentage																33.00%															33.00%
Cash received on land contribution	24											12																12
Mortgage debt assumed						52	32															52	32
Capital lease transferred						61	38															61	38
Proceeds from transfer of Le Meridien Piccadilly to the Euro JV Fund II						40	25															40	25
Common voting interest acquired								75.00%	75.00%															75.00%	75.00%
Mortgage debt assumed in connection with acquisition								86	80															86	80
OP Units exchanged for ownership right, units											0.3																0.3
OP Units exchanged for ownership right, value											$ 6																$ 6