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COMMITMENTS AND CONTINGENCIES - Guarantees (Details) - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2017
Commitments and Contingencies Disclosure [Line Items] |  |  |
Maximum Potential Amount of Future Fundings | $ 227 |  |
Recorded Liability for Guarantees | 127 |  |
Debt service |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |
Maximum Potential Amount of Future Fundings | 20 |  |
Recorded Liability for Guarantees | 5 |  |
Operating profit |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |
Maximum Potential Amount of Future Fundings | 189 |  |
Recorded Liability for Guarantees | 118 |  |
Other |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |
Maximum Potential Amount of Future Fundings | 18 |  |
Recorded Liability for Guarantees | 4 |  |
Sheraton Grand Chicago Hotel |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |
Recorded Liability for Guarantees | 300 | $ 300 |
Sheraton Grand Chicago Hotel | Land and Hotel |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |
Maximum Potential Amount of Future Fundings |  |  | $ 300
Sheraton Grand Chicago Hotel | Land |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |
Maximum Potential Amount of Future Fundings |  |  | $ 200
Not Yet In Effect Condition | Operating profit |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |
Maximum Potential Amount of Future Fundings | 42 |  |
Not Yet In Effect Condition | Other |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |
Maximum Potential Amount of Future Fundings | 3 |  |
Accrued Expenses and Other |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |
Recorded Liability for Guarantees | 17 |  |
Other noncurrent liabilities |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |
Recorded Liability for Guarantees | $ 110 |  |
Minimum |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |
Guarantee obligations, term | 3 years |  |
Maximum |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |
Guarantee obligations, term | 10 years |  |

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- Definition The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=124440162&loc=d3e12069-110248 + Details
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- Definition Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=124440162&loc=d3e12069-110248 + Details
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