Number of hotels sold.

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- Definition

Short-Term financing which is expected to be paid back relatively quickly, such as by a subsequent longer-term loan. Also called swing loan or bridge financing.

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- Definition

Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets.

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Dispositions - Additional Information (Detail) $ in Millions		3 Months Ended	12 Months Ended
	Jan. 01, 2022 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($) Hotel	Dec. 31, 2020 USD ($) Hotel	Dec. 31, 2019 USD ($) Hotel
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Number of hotels sold \| Hotel			6	1	14
Gain on sale of assets			$ 305	$ 148	$ 339
Proceeds from sales of assets, net			$ 729	281	$ 1,192
Phoenician Land Parcel
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Gain on sale of assets				59
Proceeds from sales of assets, net				$ 83
Sheraton Boston Hotel \| Forecast
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Gain on disposition of assets		$ 12
Sheraton Boston Hotel \| Subsequent Event
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Proceeds from sales of assets, net	$ 233
Bridge Loan	$ 163