CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
OPERATING ACTIVITIES
Net income (loss)	$ 118	$ (153)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operations:
Depreciation and amortization	172	165
Amortization of finance costs, discounts and premiums, net	3	2
Stock compensation expense	5	4
Other (gains)/losses	(13)	1
Equity in earnings of affiliates	(2)	(9)
Change in due from/to managers	(5)	(13)
Distributions from investments in affiliates	2	0
Changes in other assets	(5)	(39)
Changes in other liabilities	(14)	(7)
Net cash provided by (used in) operating activities	261	(49)
INVESTING ACTIVITIES
Proceeds from sales of assets, net	74	3
Proceeds from loan receivable	0	9
Advances to and investments in affiliates	(44)	(5)
Acquisitions	0	(189)
Capital expenditures:
Renewals and replacements	(39)	(32)
Return on investment	(83)	(61)
Net cash used in investing activities	(92)	(275)
FINANCING ACTIVITIES
Financing costs	0	(3)
Repayment of credit facility	(683)	0
Other financing activities	(10)	(8)
Net cash used in financing activities	(693)	(11)
Effects of exchange rate changes on cash held	1	0
NET DECREASE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH	(523)	(335)
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, BEGINNING OF PERIOD	953	2,476
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, END OF PERIOD	430	2,141
Supplemental disclosure of cash flow information:
Cash and cash equivalents	266	2,008
Restricted cash (included in other assets)	1	2
Furniture, fixtures and equipment replacement fund	163	131
Total cash and cash equivalents and restricted cash shown in the statements of cash flows	430	2,141
Total interest paid	28	35
Income tax refunds received	(8)	0
HOST HOTELS & RESORTS L.P.
OPERATING ACTIVITIES
Net income (loss)	118	(153)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operations:
Depreciation and amortization	172	165
Amortization of finance costs, discounts and premiums, net	3	2
Stock compensation expense	5	4
Other (gains)/losses	(13)	1
Equity in earnings of affiliates	(2)	(9)
Change in due from/to managers	5	13
Distributions from investments in affiliates	2	0
Changes in other assets	5	39
Changes in other liabilities	(14)	(7)
Net cash provided by (used in) operating activities	261	(49)
INVESTING ACTIVITIES
Proceeds from sales of assets, net	74	3
Proceeds from loan receivable	0	9
Advances to and investments in affiliates	(44)	(5)
Acquisitions	0	(189)
Capital expenditures:
Renewals and replacements	(39)	(32)
Return on investment	(83)	(61)
Net cash used in investing activities	(92)	(275)
FINANCING ACTIVITIES
Financing costs	0	(3)
Repayment of credit facility	(683)	0
Other financing activities	(10)	(8)
Net cash used in financing activities	(693)	(11)
Effects of exchange rate changes on cash held	1	0
NET DECREASE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH	(523)	(335)
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, BEGINNING OF PERIOD	953	2,476
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, END OF PERIOD	430	2,141
Supplemental disclosure of cash flow information:
Cash and cash equivalents	266	2,008
Restricted cash (included in other assets)	1	2
Furniture, fixtures and equipment replacement fund	163	131
Total cash and cash equivalents and restricted cash shown in the statements of cash flows	430	2,141
Total interest paid	28	35
Income tax refunds received	$ (8)	$ 0
Host Hotels Resorts Lp [Member] | Noble Investment Group LLC
Noncash Investing And Financing Items [Abstract]
Noncash financial or equity instrument consideration, shares issued	3.2
Joint venture investment, value of shares issued	$ 56
Host Hotels Resorts Lp [Member] | HOST HOTELS & RESORTS L.P. | Noble Investment Group LLC
Noncash Investing And Financing Items [Abstract]
Noncash financial or equity instrument consideration, shares issued	3.2
Joint venture investment, value of shares issued	$ 56
Sheraton Boston Hotel [Member]
Noncash Investing And Financing Items [Abstract]
Notes receivable from sale of property	163
Sheraton Boston Hotel [Member] | HOST HOTELS & RESORTS L.P.
Noncash Investing And Financing Items [Abstract]
Notes receivable from sale of property	$ 163