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Maximum loss exposure, amount (less than) Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount Carrying values and estimated fair values of financial assets and liabilities Fair Value, by Balance Sheet Grouping [Table Text Block] Purchase commitment obligation due, 2024 Purchase Obligation, to be Paid, Year Four Fair Value Measurement [Domain] Fair Value Measurement [Domain] Derivative Instruments Derivatives, Policy [Policy Text Block] SUBSEQUENT EVENTS Subsequent Events [Text Block] 2022 Convertible Notes Convertible Senior Notes [Member] Convertible Senior Notes [Member] Income tax holiday period Income Tax Holiday Period Income Tax Holiday Period Debt Disclosure [Table] Debt Disclosure [Table] Debt Disclosure [Table] Loss Contingencies Commitments and Contingencies, Policy [Policy Text Block] Weighted Average Grant-Date Fair Value Per Share Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] As finalized Business Combination, Provisional Information [Abstract] Long-Lived Tangible Asset [Axis] Long-Lived Tangible Asset [Axis] Aggregate intrinsic value, exercisable Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Exercisable Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Exercisable Schedule of outstanding RSUs and the associated weighted average grant-date fair values Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block] Number of notes receivable pools under performance triggers Number of Notes Receivable Pools Under Performance Triggers Number of Notes Receivable Pools Under Performance Triggers 2018 Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year ILG Acquisition Stock Issued During Period, Value, Acquisitions 2022 Lessee, Operating Lease, Liability, to be Paid, Year Two State and Local Jurisdiction State and Local Jurisdiction [Member] FINANCING ACTIVITIES Net Cash Provided by (Used in) Financing Activities [Abstract] Transaction costs Effective Income Tax Rate, Transaction Costs Effective Income Tax Rate, Transaction Costs Deferred revenue Deferred Tax Assets, Deferred Income Lease, Cost Lease, Cost [Table Text Block] Term Loan Term Loan [Member] Term Loan [Member] Interest Rate Swap September 2023 Interest Rate Swap September 2023 [Member] Interest Rate Swap September 2023 Disposition of subsidiary shares to noncontrolling interest holder Proceeds from Divestiture of Interest in Consolidated Subsidiaries 2023 Lessee, Operating Lease, Liability, to be Paid, Year Three Schedule of unrecognized tax benefits Summary of Positions for which Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Table Text Block] Deferred revenue Contract With Customer Liability Deferred Revenue Contract With Customer Liability Deferred Revenue Plan Name [Axis] Plan Name [Axis] Total financial liabilities Financial Liabilities Fair Value Disclosure TOTAL ASSETS Total Assets Assets Impairment charges for other intangible assets Impairment Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) Guarantor obligations, maximum exposure, due after fifth year Guarantor Obligations Maximum Exposure Undiscounted Due After Fifth Year Guarantor Obligations Maximum Exposure Undiscounted Due After Fifth Year Outstanding at beginning of year (in shares) Outstanding at ending of year (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number COVID-19 pandemic COVID-19 Pandemic [Member] COVID-19 Pandemic [Member] Catastrophic Event [Axis] Catastrophic Event [Axis] Investments in and Advances to Affiliates Categorization [Axis] Investments in and Advances to Affiliates Categorization [Axis] Finance Leases Finance Lease, Liability, Payment, Due [Abstract] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Debt, gross Total Principal amount Debt And Finance Lease Obligations Gross Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long term debt and finance lease obligations, gross. 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Additional Paid-In Capital Additional Paid-in Capital [Member] Other (including $54 and $39 from VIEs, respectively) Other Assets Other Assets Other, net Other Operating Activities, Cash Flow Statement Purchase commitment obligation due, 2022 Purchase Obligation, to be Paid, Year Two Asset Class [Axis] Asset Class [Axis] Exercisable (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Exercisable Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Exercisable Interest on lease liabilities Finance Lease, Interest Expense Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Purchase of vacation ownership units for future transfer to inventory Purchase of vacation ownership units for future transfer to inventory Purchase Of Vacation Ownership Units For Future Transfer To Inventory Purchase Of Vacation Ownership Units For Future Transfer To Inventory Other Other Receivables Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Exercised (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Exercises in Period, Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Exercises in Period, Weighted Average Exercise Price Capital loss carryforwards Deferred Tax Assets, Capital Loss Carryforwards Revolving corporate credit facility, net Revolving Credit Facility [Member] Schedule of Goodwill [Table] Schedule of Goodwill [Table] VARIABLE INTEREST ENTITIES Variable Interest Entity Disclosure [Text Block] INCOME BEFORE INCOME TAXES Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest 31 – 90 days past due Financing Receivables, 31 To 90 Days Past Due [Member] Financing Receivables, 31 To 90 Days Past Due [Member] Other items Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Outstanding (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Commitments and Contingencies Disclosure Commitments and Contingencies Disclosure [Line Items] Commitments and Contingencies Disclosure [Line Items] Cash consideration to ILG shareholders, net of cash acquired of $154 million Payments to Acquire Businesses, Net of Cash Acquired Common stock, shares authorized (in shares) Common Stock, Shares Authorized Percentage of voting interests acquired Business Acquisition, Percentage of Voting Interests Acquired Revenue by geographic areas Revenue from External Customers by Geographic Areas [Table Text Block] – U.S. Federal Deferred Federal Income Tax Expense (Benefit) 2021 Time-Sharing Transaction, Notes Receivable, Maturity, Year One Goodwill Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] Payroll and benefit liabilities Increase (Decrease) in Employee Related Liabilities Income Statement [Abstract] Income Statement [Abstract] Accumulated Other Comprehensive Income AOCI Attributable to Parent [Member] Corporate and other Corporate and Other Income Expense Corporate and other income (expense). Interest income Interest On Notes Receivable Interest On Notes Receivable Interest receivable Interest Receivable Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Variable Interest Entity Variable Interest Entity, Primary Beneficiary [Member] Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Unamortized debt discount and issuance costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Secured Debt, Net Secured Debt, Net Secured Debt, Net Income Tax Authority [Domain] Income Tax Authority [Domain] Dividends Dividends Securitized debt, net Non Recourse Debt [Member] Non Recourse Debt Consolidated Entities [Axis] Consolidated Entities [Axis] New York City New York City [Member] New York City [Member] Restructuring Reserve Restructuring Reserve [Roll Forward] Scenario [Domain] Scenario [Domain] Outstanding at beginning of year (in usd per share) Outstanding at year-end (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average Exercise Price Capital expenditures for property and equipment (excluding inventory) Payments to Acquire Property, Plant, and Equipment Consolidation Items [Domain] Consolidation Items [Domain] Total Cash Flows Between Transferee And Transferor Repayments Cash Flows Between Transferee And Transferor Repayments Interest expense to investors Interest Expense, Related Party Trust Entity [Domain] Trust Entity [Domain] [Domain] for Trust Entity [Axis] Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Abstract] Not eligible for securitization Not Eligible for Securitization [Member] Not Eligible for Securitization [Member] Capital Expenditures Payments to Acquire Property, Plant, and Equipment and Inventory Payments to Acquire Property, Plant, and Equipment and Inventory Proceeds from issuance of senior debt Proceeds from Issuance of Senior Long-term Debt (Losses) gains and other (expense) income, net Gains (Losses) And Other Income (Expense), Net Gains (Losses) And Other Income (Expense), Net Deposits on future purchases of inventory Deposits on Future Purchases of Inventory Deposits on Future Purchases of Inventory Accrued liabilities Operating Lease, Liability, Statement of Financial Position [Extensible List] Entity [Domain] Entity [Domain] Number of notes receivable pools out of compliance Number Of Notes Receivable Pools Out Of Compliance Number of notes receivable pools out of compliance with established parameters Schedule of restructuring and related costs Restructuring and Related Costs [Table Text Block] Other comprehensive income attributable to noncontrolling interests Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest QUARTERLY RESULTS (UNAUDITED) Quarterly Financial Information [Text Block] Indexed shares (in shares) Option Indexed to Issuer's Equity, Indexed Shares INTANGIBLE ASSETS Intangible Assets Disclosure [Text Block] Furniture, fixtures and other equipment Fixtures and Equipment, Gross Estimated useful lives of the assets Property, Plant and Equipment, Useful Life IAC Notes IAC Notes [Member] IAC Notes [Member] Income Taxes Income Taxes [Line Items] Income Taxes [Line Items] Goodwill Goodwill [Line Items] 2025 Notes 2025 Notes [Member] 2025 Notes 600 - 699 FICO Score, 600 to 699 [Member] Future Minimum Payments Receivable [Line Items] Future Minimum Payments Receivable [Line Items] Future Minimum Payments Receivable [Line Items] 2019 Financing Receivables Past Due Second Year [Member] Financing Receivables Past Due Second Year [Member] Restricted cash (including $68 and $64 from VIEs, respectively) Restricted cash Restricted cash Restricted Cash and Cash Equivalents Net Cash Flows Cash Flows Between Transferee and Transferor Net Cash Flows Between Transferee And Transferor Net. Net income attributable to common shareholders Business Acquisition, Pro Forma Net income, Attributable To Common Shareholders Business Acquisition, Pro Forma Net income, Attributable To Common Shareholders Percent of the assets, liabilities, revenues, expenses and cash flows discussed Percentage of Assets, Liabilities, Revenues, Expenses and Cash Flows Consolidated and Discussed Percentage of Assets, Liabilities, Revenues, Expenses and Cash Flows Consolidated and Discussed Total past due Financing Receivable, Past Due Share-based Payment Arrangement [Abstract] Share-based Payment Arrangement [Abstract] Land Land [Member] Consolidated Entities [Domain] Consolidated Entities [Domain] Financing Financing Revenue Not From Contract With Customer Financing revenues include interest income earned on vacation ownership notes receivable, fees earned from servicing the existing vacation ownership notes receivable portfolio, and other transaction-based fees charged to owners and other third parties for services. Revenue from External Customer Revenue from External Customer [Line Items] Business combination provisional Information adjustment other liabilities tax matters Business Combination Provisional Information Adjustment Other Liabilities Tax Matters Business Combination Provisional Information Adjustment Other Liabilities Tax Matters Other Other Debt [Member] Other Debt Marco Island, Florida Marco Island Florida [Member] Marco Island Florida [Member] Finance leases Right-of-Use Asset Obtained in Exchange for Finance Lease Liability Forfeited (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Hyatt and Other Hyatt and Other [Member] Hyatt and Other [Member] Credit Score, FICO [Axis] Credit Score, FICO [Axis] Service-based RSUs Service Based Restricted Stock Unit [Member] Service Based Restricted Stock Unit [Member] Receivable, noncredit discount Receivable with Imputed Interest, Discount Accounts, Notes, Loans and Financing Receivable Accounts, Notes, Loans and Financing Receivable [Line Items] Vacation ownership notes receivable, net of reserves Vacation Ownership Notes Receivable [Member] Vacation Ownership Notes Receivable [Member] Weighted Average Exercise Price Per SAR Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Weighted Average Exercise Price [Abstract] Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Weighted Average Exercise Price [Abstract] Additional paid-in capital Additional Paid in Capital, Common Stock Number of warrants exercised (in shares) Class Of Warrant Or Right, Number Of Warrants Exercised Class of Warrant or Right, Number Of Warrants Exercised Entity Registrant Name Entity Registrant Name Subsequent Event Type [Domain] Subsequent Event Type [Domain] Accounts payable Accounts Payable Business Acquisition Business Acquisition [Line Items] Operating leases Operating Lease, Weighted Average Discount Rate, Percent Other liabilities Increase (Decrease) in Other Operating Liabilities Impairment Asset Impairment Charges Beginning balance Ending balance Time Sharing Transactions, Allowance for Uncollectible Accounts Cash flows between transferee and transferor proceeds Total Cash Flows Between Transferee And Transferor Proceeds Cash Flows Between Transferee And Transferor Proceeds Less: Imputed interest Finance Lease, Liability, Undiscounted Excess Amount Purchase of company owned life insurance Payments for (Proceeds from) Life Insurance Policies Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Depreciation and amortization Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Beginning Balance Ending Balance Restructuring Reserve Vacation ownership notes receivable Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Vacation Ownership Notes Receivable The amount of vacation ownership notes receivable recognized as of the acquisition date. Employee Termination Costs One-time Termination Benefits [Member] Receivables from contracts with customers Receivables from Customers Debt Disclosure [Line Items] Debt Disclosure [Line Items] Debt Disclosure [Line Items] Asset acquisition, recognized identifiable assets acquired, inventory Asset Acquisition, Recognized Identifiable Assets Acquired, Inventory Amount of purchase price allocated to Inventory. 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Unrecognized tax benefit at beginning of year Unrecognized tax benefit at end of year Unrecognized Tax Benefits Common stock — $0.01 par value; 100,000,000 shares authorized; 75,279,061 and 75,020,272 shares issued, respectively Common Stock, Value, Issued Document Fiscal Year Focus Document Fiscal Year Focus Expected amortization expense, 2022 Finite-Lived Intangible Asset, Expected Amortization, Year Two Borrowings from securitization transactions Proceeds from Issuance of Secured Debt Aggregate intrinsic value, exercised Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Exercised Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Exercised Financing receivable, before allowance for credit loss, current Financing Receivable, before Allowance for Credit Loss, Current Decreases related to settlements with taxing authorities Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities Entity Current Reporting Status Entity Current Reporting Status Revolving Corporate Credit Facility, net Revolving Corporate Credit Facility [Member] Revolving Corporate Credit Facility [Member] (Loss) Earnings Per Share Attributable to Common Shareholders Earnings Per Share, Policy [Policy Text Block] Deferred sales of vacation ownership interests Deferred Tax Deferred Vacation Ownership Interests Sales Amount of deferred taxes attributed to deferred sales of vacation ownership interests. Inventory Disclosure [Abstract] Inventory Disclosure [Abstract] Marriott Vacations Worldwide common stock price as of Acquisition Date (in dollars per share) Business Acquisition, Share Price Common stock, shares issued (in shares) Beginning balance (in shares) Ending balance (in shares) Shares of common stock per $1,000 principal amount (in shares) Common Stock, Shares, Issued Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Asset acquisition, recognized identifiable assets acquired, property and equipment Asset Acquisition, Recognized Identifiable Assets Acquired, Property And Equipment Amount of purchase price allocated to Property and Equipment. Number of SARs Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Rollforward [Abstract] Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Rollforward [Abstract] Operating lease liabilities Operating Lease, Liability Segment Reporting [Abstract] Segment Reporting [Abstract] Westin Westin [Member] Represents the information pertaining to Westin brand. 91 – 120 days past due Financing Receivables, 91 To 120 Days Past Due [Member] Financing Receivables, 91 To 120 Days Past Due Debt Instrument Debt Instrument [Line Items] TOTAL MVW SHAREHOLDERS' EQUITY Beginning balance Ending balance Stockholders' Equity Attributable to Parent 2025 Time-Sharing Transaction, Notes Receivable, Maturity, Year Five Total consideration transferred, net of cash acquired Business Combination, Consideration Transferred Deferred Compensation Plan Deferred Compensation Plan [Member] Deferred Compensation Plan [Member] Right-of-use liability Deferred Tax Liabilities Right Of Use Liability Deferred Tax Liabilities Right Of Use Liability Equivalent shares of Marriott Vacations Worldwide common stock issued in exchange for ILG outstanding shares (in shares) Equity interest issued or issuable, number of shares (in shares) Business Acquisition, Equity Interest Issued or Issuable, Number of Shares Entity Address, City or Town Entity Address, City or Town Our Business Nature of Operations [Policy Text Block] Nature of Operations Restricted stock units Restricted Stock Units (RSUs) [Member] Total MVW Shareholders' Equity Parent [Member] 2025 Lessee, Operating Lease, Liability, to be Paid, Year Five Composition of inventory Inventory [Table Text Block] Inventory Table VRI Europe Limited VRI Europe Limited [Member] VRI Europe Limited [Member] (Gain) loss on disposal of property and equipment, net Gain (Loss) on Disposition of Property Plant Equipment Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets [Axis] Schedule of cash flow hedges included in accumulated other comprehensive income (loss) Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block] Composition of vacation ownership notes receivable balances, net of reserves Notes Receivable, Balances, Net Of Reserves [Table Text Block] Notes Receivable, Balances, Net Of Reserves [Table Text Block] Disposition of subsidiary shares to noncontrolling interest holder Disposition of subsidiary shares to noncontrolling interest holder Divestiture of Interest in Consolidated Subsidiaries Divestiture of Interest in Consolidated Subsidiaries Payment of dividends Payments of Dividends 2028 Notes A2028 Notes [Member] A2028 Notes Less valuation allowance Deferred Tax Assets, Valuation Allowance Expected amortization expense, 2023 Finite-Lived Intangible Asset, Expected Amortization, Year Three Revenue Recognition Revenue from Contract with Customer [Policy Text Block] OTHER COMPREHENSIVE LOSS, NET OF TAX Other Comprehensive Income (Loss), Net of Tax Work-in-progress Inventory, Work in Process, Gross Leases [Abstract] Leases [Abstract] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Corporate and Other Corporate and Other [Member] Guarantor obligations, maximum exposure, due in five year Guarantor Obligations Maximum Exposure Undiscounted Due In Five Year Guarantor Obligations Maximum Exposure Undiscounted Due In Five Year GOODWILL Goodwill Disclosure [Text Block] COMPREHENSIVE (INCOME) LOSS ATTRIBUTABLE TO NONCONTROLLING INTERESTS Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Earnings Per Share [Abstract] Earnings Per Share [Abstract] Restructuring Charges Restructuring Charges Components of deferred tax assets and liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Weighted average FICO score within originated loan pool Weighted average FICO score within originated loan pool Weighted average FICO score within originated loan pool Antidilutive Securities Excluded from Computation of Earnings Per Share Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Non-securitized Non-Securitized Nonsecuritized Vacation Ownership Notes Receivable [Member] Nonsecuritized vacation ownership notes receivable Interest income associated with vacation ownership notes receivable Schedule Of Components Of Investment Income Included In Interest Income Table [Text Block] Interest Income associated with vacation ownership notes receivable. Property and equipment, gross Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, before Accumulated Depreciation and Amortization U.S. state income taxes, net of U.S. federal tax benefit Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent Senior Secured Notes Senior Secured Notes [Member] Senior Secured Notes [Member] Disposal Group Name [Domain] Disposal Group Name [Domain] Segment Reporting, Revenue Reconciling Segment Reporting, Revenue Reconciling Item [Line Items] Advance rate for securitization Advance Rate For Securitization Advance Rate For Securitization Indemnified Tax Liability Indemnified Tax Liability [Member] Indemnified Tax Liability 2016 Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year Noncontrolling interests Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value Expected amortization expense, 2025 Finite-Lived Intangible Asset, Expected Amortization, Year Five Originated Originated [Member] Originated [Member] Document Fiscal Period Focus Document Fiscal Period Focus 91 – 150 days past due Financing Receivables, 91 To 150 Days Past Due [Member] Financing Receivables, 91 To 150 Days Past Due [Member] Number of days for payments to commence under financing contracts after closing Number Of Days For Payments To Commence Under Financing Contracts After Closing Number of days for payments to commence under financing contracts after closing Litigation charges Gain (Loss) Related to Litigation Settlement Lease not yet commenced Lessee Finance Lease Lease Not yet Commenced Right Of Use Asset Lessee Finance Lease Lease Not yet Commenced Right Of Use Asset Deferred Tax Asset [Domain] Deferred Tax Asset [Domain] Fair value of ILG equity-based awards attributed to pre-combination service Business Combination, Consideration Transferred, Equity Interests Issued and Issuable, Equity Awards Business Combination, Consideration Transferred, Equity Interests Issued and Issuable, Equity Awards Bali, Indonesia Resort Bali, Indonesia Resort Two [Member] Bali, Indonesia Resort Two [Member] Redemption price Debt Instrument, Redemption Price, Percentage Entity Filer Category Entity Filer Category Common Stock Common Stock [Member] Product and Service [Domain] Product and Service [Domain] Non-U.S. income (loss) Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Financing Receivable, Allowance for Credit Loss [Table] Financing Receivable, Allowance for Credit Loss [Table] Defined contribution plan, cost Defined Contribution Plan, Cost Geographic Concentration Risk Geographic Concentration Risk [Member] Finance leases Finance Lease, Weighted Average Discount Rate, Percent Amounts related to share-based compensation APIC, Share-based Payment Arrangement, Recognition and Exercise Vacation ownership notes receivable Notes Receivable, Fair Value Disclosure Cash flows between transferee and transfer or funding of restricted cash (less than for third quarter of 2019) Funding of restricted cash Cash Flows Between Transferee And Transfer or Funding Of Restricted Cash Cash Flows Between Transferee And Transfer or Funding Of Restricted Cash Securitized debt Secured Debt [Member] Class of Treasury Stock [Table] Class of Treasury Stock [Table] Sales revenue, net Revenue Benchmark [Member] Restatement [Domain] Revision of Prior Period [Domain] Amount of completed vacation ownership units classified as property and equipment Amount Of Completed Vacation Ownership Units Classified As Property And Equipment Amount Of Completed Vacation Ownership Units Classified As Property And Equipment Debt, stated interest rate Debt Instrument, Interest Rate, Stated Percentage Property acquired via capital lease Lease Obligation Incurred Expected timing of satisfaction, period Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Total vacation ownership notes receivable Vacation Ownership Notes Receivable Financing Receivable, before Allowance for Credit Loss Less Than 600 Fico Score Less Than 600 [Member] Less than 600 credit score as defined by the external credit rating agency, Fair Isaac Corporation (FICO). Element name and standard label in FICO Score Greater Than [low end numeric value] [Member] or FICO Score Less Than [high end numeric value] [Member] formats. Change in cash, cash equivalents, and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect 2024 Time-Sharing Transaction, Notes Receivable, Maturity, Year Four Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] 2018 Financing Receivables Past Due Third Year [Member] Financing Receivables Past Due Third Year [Member] EXPENSES Costs and Expenses [Abstract] Subsequent Events [Abstract] Subsequent Events [Abstract] Treasury stock, shares (in shares) Number of Shares Repurchased, Beginning of period (in shares) Number of Shares Repurchased, End of period (in shares) Treasury Stock, Shares Foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Class D notes Class D Notes [Member] Class D Notes – U.S. State Deferred State and Local Income Tax Expense (Benefit) 2025 Long-Term Debt, Maturity, Year Five United States Income (Loss) from Continuing Operations before Income Taxes, Domestic Management and exchange Management And Exchange [Member] Management And Exchange Vacation Ownership Notes Receivable Securitizations Vacation Ownership Notes Receivable Securitizations [Member] Vacation Ownership Notes Receivable Securitizations [Member] Interest paid, net of amounts capitalized Interest Paid, Excluding Capitalized Interest, Operating Activities Restricted cash Restricted Cash [Member] Restricted Cash Debt Principal Payments Year Long-term Debt, Fiscal Year Maturity [Abstract] TOTAL EQUITY Beginning balance Ending balance Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Employee stock options and SARs (in shares) Incremental Common Shares Attributable To Stock Option And Stock Appreciation Right Plans Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements for stock options and Stock Appreciation Rights using the treasury stock method. Financing Receivable, Past Due Financing Receivable, Past Due [Line Items] Other Affiliates Other Affiliates [Member] Expected amortization expense, 2021 Finite-Lived Intangible Asset, Expected Amortization, Year One Write-offs Time Sharing Transactions, Allowance for Uncollectible Accounts, Deductions for Direct Write-offs Charged Against Allowance Average estimated rate of default for all outstanding loans Average Estimated Rate Of Default For All Outstanding Loans Average estimated rate of default for all outstanding loans. Cancun Mexico and Avon Colorado Cancun Mexico and Avon Colorado [Member] Cancun Mexico and Avon Colorado TOTAL REVENUES Revenues Revenues Sale of vacation ownership products Time Share [Member] Information technology Information technology assets, Gross Information technology assets, Gross Vacation Ownership Vacation Ownership [Member] Vacation Ownership [Member] Income taxes paid, net of refunds Income Taxes Paid, Net New Accounting Pronouncements or Change in Accounting Principle [Table] Accounting Standards Update and Change in Accounting Principle [Table] Diluted (in usd per share) Diluted (loss) earnings per share (in usd per share) Earnings Per Share, Diluted Variable Interest Entity Variable Interest Entity [Line Items] Equity Interest Type [Axis] Equity Interest Type [Axis] Welk Resorts Welk Resorts [Member] Welk Resorts Net operating loss carry forwards, subject to expiration Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration Consideration transferred, equity interests issued and issuable Business Combination, Consideration Transferred, Equity Interests Issued and Issuable Debt balances, net of unamortized debt issuance costs Schedule of Debt [Table Text Block] Deferred revenue Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities, Deferred Revenue The amount of deferred revenue recognized as of the acquisition date. Inventory Inventory Inventory Timeshare Total of (1) improvements, (2) held-for-sale, (3) construction-in-process, and (4) operating supplies, held in the normal course of business. Entity Address, Address Line One Entity Address, Address Line One Investments, All Other Investments [Abstract] Investments, All Other Investments [Abstract] Entity Emerging Growth Company Entity Emerging Growth Company Indefinite-lived intangible assets Beginning Balance Ending Balance Indefinite-lived Intangible Assets (Excluding Goodwill) Deferred income taxes Deferred Income Tax Expense (Benefit) Revenues Business Acquisition, Pro Forma Revenue Accounts and nontrade receivable Accounts And Non trade Receivable Table Text Block [Table Text Block] Accounts And Non trade Receivable Table Text Block Fair value of Marriott Vacations Worldwide common stock issued in exchange for ILG outstanding shares Business Combination Consideration Transferred Equity Interests Issued and Issuable, Common Stock Business Combination, Consideration Transferred, Equity Interests Issued and Issuable, Common Stock Impairment charges Impairment of Long-Lived Assets to be Disposed of Future principal payments, net of reserves, and interest rates of vacation ownership notes receivable Schedule of Financing Receivables, Minimum Payments [Table Text Block] Dispositions, net Proceeds from Sale of Other Property, Plant, and Equipment Exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Exercised Accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Assumptions used to estimate fair value of grants Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions [Table Text Block] Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions [Table Text Block] Percentage of fair market value of common stock (not less than) Percentage Of Fair Market Value Of Common Stock Percentage Of Fair Market Value Of Common Stock Maximum Maximum [Member] Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Noncontrolling Interests Noncontrolling Interest [Member] Management contracts Management Contracts [Member] Management Contracts [Member] Exchange Notes Senior Exchange Notes [Member] Senior Exchange Notes [Member] Interest income and expense recognized as a result of our involvement with variable interest entities Interest Income and Interest Expense Disclosure [Table Text Block] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Effective rate Effective Income Tax Rate Reconciliation, Percent Accounts Receivable Accounts Receivable Additional Disclosures [Abstract] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Reserve for credit losses for accounts receivable Accounts Receivable, Allowance for Credit Loss Right-of-use asset Deferred Tax Assets Right Of Use Asset Deferred Tax Assets Right Of Use Asset 2017 Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year Trading Symbol Trading Symbol Long Term Debt Maturities Repayments Of Principal [Line Items] Long Term Debt Maturities Repayments Of Principal [Line Items] Long Term Debt Maturities Repayments Of Principal [Line Items] Financing Receivable [Domain] Financing Receivable [Domain] [Domain] for Financing Receivable [Axis] Outstanding, weighted average remaining contractual terms Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average Remaining Contractual Terms Revenue, Initial Application Period Cumulative Effect Transition [Table] Revenue, Initial Application Period Cumulative Effect Transition [Table] 2026 Convertible Note Hedges A2026 Convertible Note Hedges [Member] A2026 Convertible Note Hedges Floating Rate Floating Rate [Member] Floating Rate [Member] Revenue remaining performance obligation Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Future Adoption of Accounting Standards Future Adoption of New Accounting Standards [Policy Text Block] Future Adoption of New Accounting Standards Policy [Policy Text Block] Deferred income taxes Noncash Income Tax (Expense) Benefit The non-cash component of income tax expense, less the tax benefit from the exercise of stock options, SARs and RSUs. Non-U.S. jurisdictions Income (Loss) from Continuing Operations before Income Taxes, Foreign Entity Shell Company Entity Shell Company Segment Reporting Information Segment Reporting Information [Line Items] VACATION OWNERSHIP NOTES RECEIVABLE Financing Receivables [Text Block] 2022 Finance Lease, Liability, to be Paid, Year Two Financing Financing Expense Not From Contract With Customer Financing expenses include costs in support of the financing, servicing and securitization processes. Entity Public Float Entity Public Float Other liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities, Other The amount of other liabilities assumed as of the acquisition date. Business Combinations Business Combinations Policy [Policy Text Block] Document Type Document Type Reconciliation of Depreciation by Segment Reconciliation of Depreciation by Segment [Line Items] Reconciliation of Depreciation by Segment [Line Items] ICFR Auditor Attestation Flag ICFR Auditor Attestation Flag Eligible for securitization Eligible for Securitization [Member] Eligible for Securitization [Member] Other Other Nonoperating Income (Expense) SECURITIZED DEBT Securitized Vacation Ownership Debt Disclosure [Text Block] The entire disclosure for securitized vacation ownership debt. 2023 Time-Sharing Transaction, Notes Receivable, Maturity, Year Three Segment Reporting, Other Significant Reconciling Item Segment Reporting, Other Significant Reconciling Item [Line Items] Classifications of consolidated vie assets and liabilities Schedule of Variable Interest Entities [Table Text Block] Management fee revenues Management Service [Member] Treasury Stock Treasury Stock [Member] Accounts payable, advance deposits and accrued liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Finite-lived and indefinite-lived intangible assets acquired as part of business combination Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block] Segments [Axis] Segments [Axis] Distributed (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Guarantor obligations, maximum exposure, due in third year Guarantor Obligations Maximum Exposure Undiscounted Due In Third Year Guarantor Obligations Maximum Exposure Undiscounted Due In Third Year Foreign tax rate changes Effective Income Tax Rate Reconciliation Foreign Rate Change Percent Effective Income Tax Rate Reconciliation Foreign Rate Change Percent Inventory impairment Inventory Write-down Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Contract with customer, contract assets Contract with Customer, Asset, before Allowance for Credit Loss Voluntary repurchase of other non-defaulted notes receivable Non Defaulted Notes Receivable Repurchased, Net of Substitutions The amount of non-defaulted notes receivable, net of substitutions, that were voluntarily repurchased for the period. Securitized Securitized Vacation Ownership Notes Receivable [Member] Securitized vacation ownership notes receivable Leases Lessee, Leases [Policy Text Block] Cost reimbursements Cost Reimbursements, Expense Cost Reimbursements, Expense Number of vacation ownership units acquired Number Of Vacation Ownership Units Acquired Number Of Vacation Ownership Units Acquired Accounts receivable, net (including $11 and $13 from VIEs, respectively) Accounts Receivable, including VIE, after allowance for credit loss Accounts Receivable, including VIE, after allowance for credit loss Accounts Receivable, Including Variable Interest Entities, After Allowance for Credit Loss Accounts Receivable, Including Variable Interest Entities, After Allowance for Credit Loss Restructuring Cost and Reserve Restructuring Cost and Reserve [Line Items] Deferred taxes Deferred Income Tax Liabilities, Net Proceeds from debt Proceeds from Issuance of Debt Intangibles, net Intangible Assets, Net (Excluding Goodwill) Period in which loan considered default loan Loan Payments Delinquency Period Beyond which Loan is Considered Defaulted Loan Payments Delinquency Period Beyond which Loan is Considered Defaulted Number of vacation ownership units expected to be acquired Expected Number of Ownership Units to be Acquired Expected Number of Ownership Units to be Acquired Trade Names and Trademarks Trademarks and Trade Names [Member] San Francisco, California San Francisco California [Member] San Francisco California [Member] Accounts receivable Increase (Decrease) in Accounts and Other Receivables Debt issuance costs Proceeds from issuance debt Payments of Debt Issuance Costs Impairment of Long-Lived Assets and Other Intangible Assets Impairment or Disposal of Long-Lived Assets, Including Intangible Assets, Policy [Policy Text Block] Contract with customer, asset and liability Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Guarantor obligations, maximum exposure. due in first year Guarantor Obligations Maximum Exposure Undiscounted Due Year One Guarantor Obligations Maximum Exposure Undiscounted Due Year One Variable Rate [Axis] Variable Rate [Axis] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Contingencies and Commitments (Note 14) Commitments and Contingencies Accounts receivable Contracts With Customers, Accounts Receivable The right to consideration that is unconditional from contracts with customers that is classified within accounts receivable Repurchase of common stock Payments for Repurchase of Common Stock Stock awards, vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Five Range of stated interest rates Time-sharing Transactions, Stated Interest Rate for Notes Receivable Entity Address, State or Province Entity Address, State or Province Distributed (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Outstanding, weighted average remaining contractual life Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average, Remaining Term Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average, Remaining Term Foreign exchange adjustments Goodwill, Foreign Currency Translation Gain (Loss) Financial Asset, Period Past Due [Axis] Financial Asset, Period Past Due [Axis] Retained earnings Retained Earnings (Accumulated Deficit) Securitized debt, net (including $1,604 and $1,871 from VIEs, respectively) Securitized debt Securitized debt, gross Secured Debt Operating lease assets Operating Lease, Right-of-Use Asset Legacy MVW Legacy MVW [Member] Legacy MVW [Member] Unamortized debt discount Debt Instrument, Unamortized Discount Carrying values of leases and classification on Balance Sheet Assets And Liabilities Lessee Table [Table Text Block] Assets And Liabilities Lessee Table Long lived intangible assets Deferred Tax Liabilities, Property, Plant and Equipment Convertible debt Convertible Debt [Table Text Block] 2021 Finance Lease, Liability, to be Paid, Year One Property and equipment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Number of classes Vacation Ownership Notes, Number Of Classes Vacation Ownership Notes, Number Of Classes Significant acquisitions and disposals consideration receivable Significant Acquisitions And Disposals Consideration Receivable Significant Acquisitions And Disposals Consideration Receivable MVW 2020-1 LLC MVW 2020 1 L L C [Member] MVW 2020 1 L L C Income Taxes Income Tax, Policy [Policy Text Block] Segment Reporting Disclosure Segment Reporting Disclosure [Line Items] Segment Reporting Disclosure [Line Items] Lease, cost Lease, Cost Repayment of Warehouse Credit Facility Cash Flows Between Transferee And Transfer or Repayments Of Warehouse Credit Facility Cash Flows Between Transferee And Transfer or Repayments Of Warehouse Credit Facility Stock options exercisable (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Repay of term loan Payment for Debt Extinguishment or Debt Prepayment Cost Costs Incurred to Sell Vacation Ownership Products Costs Incurred to Sell Vacation Ownership Products Policy [Text Block] Policy for costs incurred to sell vacation ownership products. Principal to investors Cash Flows Between Transferee And Transferor Repayments Of Principal To Investors Cash Flows Between Transferee And Transferor Repayments Of Principal To Investors Advance deposits Contract With Customer Liability Advance Deposits Contract With Customer Liability Advance Deposits Recoveries Time Sharing Transactions Direct Recoveries Charged Against Allowance Time Sharing Transactions Direct Recoveries Charged Against Allowance Construction in progress Construction in Progress, Gross Thereafter Long-Term Debt, Maturity, after Year Five Revenue from contracts with customers Revenue from Contract with Customer, Excluding Assessed Tax Class A notes Class A Notes [Member] Class A Notes [Member] Exchange & Third-Party Management Exchange and Third-Party Management [Member] Exchange and Third-Party Management [Member] Business Acquisition [Axis] Business Acquisition [Axis] Geographical [Domain] Geographical [Domain] Cash Outflows Cash Outflows [Abstract] Cash Outflows [Abstract] ILG Acquisition (in shares) Stock Issued During Period, Shares, Acquisitions Forecast Forecast [Member] – Non-U.S. Deferred Foreign Income Tax Expense (Benefit) (LOSS) EARNINGS PER SHARE ATTRIBUTABLE TO COMMON SHAREHOLDERS Earnings Per Share, Basic and Diluted [Abstract] Principal receipts Cash Flows Between Transferee And Transferor Proceeds From Principal Receipts Cash Flows Between Transferee And Transferor Proceeds From Principal Receipts Entity Voluntary Filers Entity Voluntary Filers ILG acquisition-related costs Business Combination, Acquisition Related Costs Credit Facility [Axis] Credit Facility [Axis] Debt instrument, fair value Debt Instrument, Fair Value Disclosure Aging of recorded investment in principal, before reserves, in vacation ownership notes receivable Financing Receivable, Past Due [Table Text Block] Preferred stock, issued (in shares) Preferred Stock, Shares Issued Deferred compensation liability Deferred Compensation Liability, Current and Noncurrent Foreign Tax Authority Foreign Tax Authority [Member] Financing receivable credit quality indicators Financing Receivable Credit Quality Indicators [Table Text Block] Business Combinations [Abstract] Business Combinations [Abstract] Restructuring and Related Activities [Abstract] Operating Leases Lessee, Operating Lease, Liability, Payment, Due [Abstract] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Unamortized debt issuance costs Unamortized debt issuance costs Unamortized Debt Issuance Expense Exercisable, weighted average remaining life (less then in year) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Increase in carrying value of inventories Real Estate Inventory True Ups Changes in estimates within the relative sales value calculations accounted for as real estate inventory true-ups. Share-based compensation, net of Section 162(m) limitation Effective Income Tax Rate Reconciliation Share Based Compensation Expense Tax Benefit Percent Effective Income Tax Rate Reconciliation Share Based Compensation Expense Tax Benefit Percent Goodwill Goodwill [Roll Forward] Financial Asset, Period Past Due [Domain] Financial Asset, Period Past Due [Domain] Reconciliation of earnings and number of shares used in calculation of basic and diluted earnings per share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Expected cost incurred Restructuring and Related Cost, Incurred Cost Thereafter Lessee Liability Payments Due after Five Years Lessee Liability Payments Due after Five Years LEASES Lessee, Finance Leases [Text Block] Schedule of recognized identified assets acquired and liabilities assumed Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Stock repurchase activity under current stock repurchase program Class of Treasury Stock [Table Text Block] Financing receivable, allowance for credit losses, that would have been increased Financing Receivable, Allowance For Credit Losses, That Would Have Been Increased Financing Receivable, Allowance For Credit Losses, That Would Have Been Increased Inventory Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] Repayments of debt Repayments of Debt Time share, accrued costs Time Sharing, Estimated Cost To Complete Accrued The portion of the total estimated cost to complete phases of existing portfolio which is included within liabilities on the balance sheet. Net cash, cash equivalents, and restricted cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Investment in notes receivable on non-accrual status Financing Receivable, Nonaccrual Entity Central Index Key Entity Central Index Key Number of reporting units Number of Reporting Units Derivative Instrument [Axis] Derivative Instrument [Axis] Interest receipts Cash Flows Between Transferee And Transferor Proceeds From Interest Receipts Cash Flows Between Transferee And Transferor Proceeds From Interest Receipts Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Financing Receivable, Past Due [Table] Financing Receivable, Past Due [Table] Senior notes Senior Notes [Member] Geographical [Axis] Geographical [Axis] Segments [Domain] Segments [Domain] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Income Taxes [Table] Income Taxes [Table] Income Taxes [Table] Net income Business Acquisition, Pro Forma Net Income (Loss) 2024 Long-Term Debt, Maturity, Year Four Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Average Price Paid per Share, for the year (in usd per share) Treasury Stock Acquired, Average Cost Per Share Indefinite-lived Intangible Assets Indefinite-lived Intangible Assets [Line Items] Land and land improvements Land and Land Improvements – U.S. Federal Current Federal Tax Expense (Benefit) Notional amount Derivative, Notional Amount Performance-based RSUs Performance Based Restricted Stock Unit [Member] Performance Based Restricted Stock Unit [Member] Depreciation and amortization of intangibles Amortization of Intangible Assets Vacation ownership projects currently under development Time Sharing Transactions, Estimated Cost to Complete Improvements and Promised Amenities Other Other Liabilities BUSINESS SEGMENTS Segment Reporting Disclosure [Text Block] Operating cash flows for finance leases Finance Lease, Interest Payment on Liability Scenario [Axis] Scenario [Axis] Title of 12(b) Security Title of 12(b) Security Finite-lived intangible assets, net Finite-Lived Intangible Assets, Net Contract Liabilities Contract with Customer, Liability [Abstract] Business combinations, pro forma, acquisition-related costs Business Combinations, Pro Forma, Acquisition-related Costs Costs incurred to effect a business combination, integration costs, severance and other employee-related costs Revenue remaining performance obligation expected timing percentage Revenue Remaining Performance Obligation Expected Timing Percentage The percentage of the remaining performance obligation that is expected to be recognized in the period Other assets Other Assets, Fair Value Disclosure Finance Lease, Liability, Fiscal Year Maturity Finance Lease, Liability, Fiscal Year Maturity [Table Text Block] Vacation ownership notes receivable reserve Provision for Loan and Lease Losses Interest payable Interest Payable Previously Reported Previously Reported [Member] Adjusted EBITDA, net income, depreciation and amortization Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Table Text Block] Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Proceeds from vacation ownership notes receivable securitizations Net proceeds from vacation ownership notes receivable securitizations Proceeds from Accounts Receivable Securitization Thereafter Time-Sharing Transaction, Notes Receivable, Maturity, after Year Five Benefit from (provision for) income taxes Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Accrued liabilities (including $1 and $2 from VIEs, respectively) Accrued Liabilities Accrued Liabilities Product and Service [Axis] Product and Service [Axis] Debt Finance Lease, Liability, Statement of 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Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Schedule of outstanding SARs and the associated weighted average exercise prices Share-based Payment Arrangement, Stock Appreciation Right, Activity [Table Text Block] Inventory Deferred Tax Assets, Inventory Values of vacation ownership notes receivable that were purchased by trust during the period Values of Vacation Ownership Notes Receivable that Were Purchased By Trust During the Period Values of Vacation Ownership Notes Receivable that Were Purchased By Trust During the Period Deferred compensation liability Increase (Decrease) in Deferred Compensation Right-of-use assets obtained in exchange for lease obligations Right of Use Assets Obtained in Exchange in Exchange for Lease Obligations [Abstract] Right of Use Assets Obtained in Exchange in Exchange for Lease Obligations Variable lease cost Variable Lease, Cost 2022 Convertible notes, net Convertible Debt, Fair Value Disclosures Change in valuation allowance Operating Loss Carryforwards, Valuation Allowance Finished goods Inventory, Real Estate, Timeshare Available-for-sale Tax receivable Income Taxes Receivable Loss Contingency Nature Loss Contingency Nature [Axis] Variable Interest Entity, Not Primary Beneficiary Variable Interest Entity, Not Primary Beneficiary [Member] Subsequent Event Subsequent Event [Member] Domestic Tax Authority Domestic Tax Authority [Member] Letters of credit outstanding Letters of Credit Outstanding, Amount Concentration Risk Type [Axis] Concentration Risk Type [Axis] Restructuring Plan [Domain] Restructuring Plan [Domain] Period in which loan considered past due Past Due Period Past Due Period Receivables Contract with Customer, Receivable The total right to consideration that is unconditional from contracts with customers Contractual interest expense Interest Expense, Debt, Excluding Amortization Fair Value Estimate of Fair Value Measurement [Member] Ancillary revenues Ancillary Revenues [Member] Ancillary Revenues Consideration transferred Business Combination Consideration Transferred [Table Text Block] Business Combination Consideration Transferred [Table Text Block] Expected amortization expense, 2024 Finite-Lived Intangible Asset, Expected Amortization, Year Four Convertible note hedges exercised (in shares) Convertible Note Hedges Exercised Convertible note hedges exercised 2026 Notes A2026 Notes [Member] A2026 Notes 2022 Time-Sharing Transaction, Notes Receivable, Maturity, Year Two Credit Score, FICO [Domain] Credit Score, FICO [Domain] Principles of Consolidation and Basis of Presentation Basis of Presentation and Principles of Consolidation [Policy Text Block] Basis of Presentation and Principles of Consolidation Share-based compensation, excess tax benefit Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-based Payment Arrangement, Amount Other permanent differences Effective Income Tax Rate Reconciliation Permanent Difference Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to permanent differences. Financing Receivable, Allowance for Credit Loss [Line Items] Financing Receivable, Allowance for Credit Loss [Line Items] Beginning Balance Ending Balance Goodwill, Gross COMPREHENSIVE (LOSS) INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS Comprehensive Income (Loss), Net of Tax, Attributable to Parent 2023 Finance Lease, Liability, to be Paid, Year Three 2026 Convertible Notes A2026 Convertible Notes [Member] A2026 Convertible Notes Dividend yield Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Preferred stock, par value (in usd per share) Preferred Stock, Par or Stated Value Per Share Marriott International Marriott International Inc [Member] Marriott International Inc Documents Incorporated by Reference Documents Incorporated by Reference [Text Block] 2021 Long-Term Debt, Maturity, Year One Reconciliation of US statutory income tax rate to our effective income tax rate Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Other comprehensive loss before reclassifications OCI, before Reclassifications, Net of Tax, Attributable to Parent Legal Entity [Axis] Legal Entity [Axis] City Area Code City Area Code Income Tax Authority [Axis] Income Tax Authority [Axis] Document Period End Date Document Period End Date Schedule Of Intangible Assets [Table] Schedule Of Intangible Assets [Table] Schedule Of Intangible Assets Greater than 150 days past due Financing Receivables, Greater than 150 Days Past Due [Member] Financing Receivables, Greater than 150 Days Past Due [Member] Cash dividend declared Dividends Declared [Table Text Block] Class B notes Class B Notes [Member] Class B Notes [Member] NET (LOSS) INCOME NET (LOSS) INCOME Net (loss) income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Financing Receivable [Axis] Financing Receivable [Axis] Financing Receivable [Axis] Disaggregation of revenue Disaggregation of Revenue [Table Text Block] Lease liability Lease liability Lease Liability Lease Liability Cost reimbursement revenues Restructuring Costs Other, Reimbursement Revenues Restructuring Costs Other, Reimbursement Revenues Payroll and benefits liability Employee-related Liabilities Quarterly Financial Information Disclosure [Abstract] Quarterly Financial Information Disclosure [Abstract] Employees and Non Employee Directors Employees And Non Employee Directors [Member] Employees And Non Employee Directors [Member] Schedule of compensation cost for share-based payment arrangements, allocation of share-based compensation costs by plan Share-based Payment Arrangement, Cost by Plan [Table Text Block] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Share-based compensation Share-based Payment Arrangement, Noncash Expense Property and equipment Deferred Tax Assets, Property, Plant and Equipment Other, net Proceeds from (Payments for) Other Financing Activities EARNINGS PER SHARE ATTRIBUTABLE TO COMMON SHAREHOLDERS Earnings Per Share, Pro Forma [Abstract] 2025 Lessee Liability Payments Due in Five Years Lessee Liability Payments Due in Five Years Payment of withholding taxes on vesting of restricted stock units Restricted Stock, Value, Shares Issued Net of Tax Withholdings Cover [Abstract] 2020 Financing Receivables Past Due Current Year [Member] Financing Receivables Past Due Current Year [Member] Income (loss) before provision for income taxes by geographic region Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Convertible debt, remaining discount amortization period Debt Instrument, Convertible, Remaining Discount Amortization Period Long-term debt Long-term Debt Deferred revenue Increase (Decrease) in Contract with Customer, Liability LEASES Lessee, Operating Leases [Text Block] Debt, net Net carrying amount of the liability component Debt And Finance Lease Obligations Net Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long term debt and finance lease obligations, net of unamortized discount and debt issuance costs. 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Property and equipment, net Property and equipment, net Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Net (income) loss attributable to noncontrolling interests Net (income) loss attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Reserve release Cash Flows Between Transferee and Transferor Reserve Release Cash Flows Between Transferee and Transferor Reserve Release Entity Interactive Data Current Entity Interactive Data Current United States UNITED STATES REVENUES Revenues [Abstract] OPERATING ACTIVITIES Net Cash Provided by (Used in) Operating Activities [Abstract] SHAREHOLDERS' EQUITY Stockholders' Equity Note Disclosure [Text Block] Purchase commitment Purchase Obligation Commitment fee percentage Line of Credit Facility, Commitment Fee Percentage Weighted-average remaining lease term Weighted Average Remaining Lease Term [Abstract] Weighted Average Remaining Lease Term Reconciliation of Revenue from Segments to Consolidated [Table] Reconciliation of Revenue from Segments to Consolidated [Table] – Non-U.S. Current Foreign Tax Expense (Benefit) Interest receivable Interest Receivable [Member] Interest Receivable Purchase commitment obligation due, 2023 Purchase Obligation, to be Paid, Year Three Asset acquisition, recognized identifiable assets acquired, other assets Asset Acquisition, Recognized Identifiable Assets Acquired, Other Assets Asset Acquisition, Recognized Identifiable Assets Acquired, Other Assets Class of Warrant or Right [Domain] Class of Warrant or Right [Domain] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Deferred tax liabilities Deferred Tax Liabilities, Gross Vacation ownership notes receivable collections Increase (Decrease) in Notes Receivable Collections The increase (decrease) during the reporting period in the amount of principal collections on mortgage loans on real estate. Legacy ILG Legacy ILG [Member] Legacy ILG [Member] Indemnification asset FDIC Indemnification Asset Number of reportable business segments Number of Reportable Segments Schedule of unrecognized compensation cost, unvested awards Share-based Payment Arrangement, Nonvested Award, Cost [Table Text Block] Interest rate, effective percentage Debt Instrument, Interest Rate, Effective Percentage Consolidation Items [Axis] Consolidation Items [Axis] Information technology hardware and software Information Systems and Technology [Member] Information Systems and Technology Impairment Goodwill, Impairment Loss Total lease payments Lessee, Operating Lease, Liability, to be Paid Other, net Deferred Tax Assets, Other Defined Contribution Plan Postemployment Benefit Plans, Policy [Policy Text Block] Rental Rental [Member] Rental [Member] Non-U.S. Operations Foreign Currency Transactions and Translations Policy [Policy Text Block] Restructuring Restructuring Costs 2024 Lessee Liability Payments Due in Four Years Lessee Liability Payments Due in Four Years Revenues excluding cost reimbursement Revenues Excluding Reimbursed Costs Revenues Excluding Reimbursed Costs Estimated default rate increases that would have resulted an increase in allowance for credit losses Result of Increase in Estimated Default Rate The projected increased default rate to apply to the allowance for credit losses. Cash Payments Payments for Restructuring Basic (in usd per share) Business Acquisition, Pro Forma Earnings Per Share, Basic Document Transition Report Document Transition Report Title of Individual [Axis] Title of Individual [Axis] Future Minimum Payments Receivable [Table] Future Minimum Payments Receivable [Table] Future Minimum Payments Receivable [Table] Deferred Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] Debt instrument, covenant, liquidity threshold Debt Instrument, Covenant, Liquidity Threshold Debt Instrument, Covenant, Liquidity Threshold 2015 & Before Financing Receivable, Originated, More than Five Years before Current Fiscal Year Securitized debt from VIEs Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities, Securitized Debt From Variable Interest Entity The amount of securitized debt from variable interest entities assumed as of the acquisition date. Current Current Income Tax Expense (Benefit), Continuing Operations [Abstract] BASIS OF PRESENTATION Basis of Accounting [Text Block] Derivative, fixed interest rate Derivative, Fixed Interest Rate Subsequent Event Subsequent Event [Line Items] Revision of Prior Period, Accounting Standards Update, Adjustment Revision of Prior Period, Accounting Standards Update, Adjustment [Member] Other Operating Supplies and Inventories Operating Supplies and Inventories Credit Facility [Domain] Credit Facility [Domain] Conversion price (in usd per share) Debt Instrument, Convertible, Conversion Price Basic (in usd per share) Basic (loss) earnings per share (in usd per share) Earnings Per Share, Basic Other Restructuring Reserve, Translation and Other Adjustment Unrecognized tax benefits that would impact effective tax rate Unrecognized Tax Benefits that Would Impact Effective Tax Rate Expected term (in years) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Schedule of Indefinite-Lived Intangible Assets [Table] Schedule of Indefinite-Lived Intangible Assets [Table] Entity File Number Entity File Number Operating leases Operating Lease, Weighted Average Remaining Lease Term 2016 Financing Receivables Past Due Fifth Year [Member] Financing Receivables Past Due Fifth Year [Member] Non-cash transfer from property and equipment to inventory Transfer From Inventory To Property And Equipment Transfer From Inventory To Property And Equipment Finite-lived intangible assets acquired Finite-lived Intangible Assets Acquired Share-based compensation expense Share-based compensation expense Share-based Payment Arrangement, Expense Balance Sheet Location [Axis] Balance Sheet Location [Axis] Employee stock plan issuance Stock Issued During Period, Value, Employee Stock Purchase Plan Voluntary repurchases of defaulted vacation ownership notes receivable Voluntary repurchase of defaulted notes receivable Defaulted Mortgage Loans Repurchased, Net of Substitutions The amount of defaulted mortgage notes receivable, net of substitutions, that were voluntarily repurchased for the period. Goodwill and Intangible Assets Disclosure [Abstract] Disposal Group Name [Axis] Disposal Group Name [Axis] Document Annual Report Document Annual Report Schedule of financing receivable Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Voluntary clean-up call Cash Flows Between Transferor and Transferee, Payment to Purchaser Cash Flows Between Transferor and Transferee, Payment to Purchaser 2024 Finance Lease, Liability, to be Paid, Year Four Interest payable Interest Payable [Member] Interest Payable 2022 Lessee Liability Payments Due in Two Years Lessee Liability Payments Due in Two Years Receivable [Domain] Receivable [Domain] Subsequent Event [Table] Subsequent Event [Table] Amounts related to share-based compensation (in shares) Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Net assets acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Noncontrolling interests Stockholders' Equity Attributable to Noncontrolling Interest Weighted average grant date fair value (in usd per share) Granted (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Time Sharing Transactions, Maturities of Notes Receivable, Net, Total Time Sharing Transactions, Maturities of Notes Receivable, Net INVESTING ACTIVITIES Net Cash Provided by (Used in) Investing Activities [Abstract] Revenue from External Customers by Products and Services [Table] Revenue from External Customers by Products and Services [Table] Time Sharing Transactions, Allowance for Uncollectible Accounts Time Sharing Transactions, Allowance for Uncollectible Accounts [Roll Forward] Convertible Senior Notes Debt, Policy [Policy Text Block] Valuation Allowance by Deferred Tax Asset [Axis] Valuation Allowance by Deferred Tax Asset [Axis] Other, net Deferred Tax Liabilities, Other Deferred Compensation Plan Deferred Compensation Plan Policy [Policy Text Block] Deferred Compensation Plan Policy [Text Block] Less: Imputed interest Lessee Liability Undiscounted Excess Amount Lessee Liability Undiscounted Excess Amount Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Sheraton Sheraton [Member] Represents the information pertaining to Sheraton brand. Concentration Risk Type [Domain] Concentration Risk Type [Domain] TOTAL LIABILITIES AND EQUITY Liabilities and Equity Buildings and leasehold improvements Buildings and Improvements, Gross Number of businesses acquired Number of Businesses Acquired Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax INCOME TAXES Income Tax Disclosure [Text Block] Fair Value Portion at Fair Value Measurement [Member] Operating lease cost Operating Lease, Cost Decreases as a result of a lapse of the applicable statute of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Total shareholder equity Assets acquired Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net Vacation ownership notes receivable, net (including $1,493 and $1,750 from VIEs, respectively) Vacation ownership notes receivable, net Financing Receivable, after Allowance for Credit Loss General and administrative Administrative expenses General and Administrative Expense Deferred Tax Liabilities Deferred Tax Liabilities, Gross [Abstract] Non-cash issuance of stock in connection with ILG Acquisition Issuance of Stock in Connection with Acquisition Issuance of Stock in Connection with Acquisition Catastrophic Event [Domain] Catastrophic Event [Domain] Floor strike rate Derivative, Floor Interest Rate Shares excluded from the calculation of diluted earnings per share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Current Income Tax Expense (Benefit) Current Income Tax Expense (Benefit) Corporate Credit Facility Corporate Credit Facility [Member] Corporate Credit Facility [Member] Finance leases Finance Lease, Weighted Average Remaining Lease Term Restricted stock units (in shares) Incremental Common Shares Attributable to Restricted Stock Units Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements for Restricted Stock Units using the treasury stock method. Increases related to tax positions taken during the current period Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Increases related to tax positions taken during a prior period Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions Equity Component [Domain] Equity Component [Domain] Vacation ownership notes receivable originations Increase (Decrease) in Notes Receivable Originations The (increase) decrease during the reporting period in the total amount of new mortgage loans originated on real estate. Intangible Assets Intangible Assets [Line Items] Intangible Assets Property and equipment, net Property, Plant and Equipment, Net Entity Tax Identification Number Entity Tax Identification Number Interest expense Interest Expense, Debt Interest Income (Expense), Nonoperating, Net SHARE-BASED COMPENSATION Share-based Payment Arrangement [Text Block] Interest Rate Contract Interest Rate Contract [Member] Long Term Debt Maturities Repayments Of Principal [Table] Long Term Debt Maturities Repayments Of Principal [Table] Long Term Debt Maturities Repayments Of Principal [Table] NET (LOSS) INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS Net (loss) income attributable to common shareholders Net (loss) income Net Income (Loss) Attributable to Parent Net change in assets and liabilities, net of the effects of acquisition: Increase (Decrease) in Operating Capital [Abstract] Schedule of Variable Interest Entities [Table] Schedule of Variable Interest Entities [Table] Carrying amount of equity component, net of issuance costs Debt Instrument, Convertible, Carrying Amount of Equity Component London Interbank Offered Rate (LIBOR) London Interbank Offered Rate (LIBOR) [Member] INVENTORY Inventory Disclosure [Text Block] Increase in vacation ownership notes receivable reserve Increase in vacation ownership notes receivable reserve Financing Receivable, Credit Loss, Expense (Reversal) Significant acquisitions and disposals consideration received and receivable Significant Acquisitions And Disposals Consideration Received And Receivable Significant Acquisitions And Disposals Consideration Received And Receivable Current Fiscal Year End Date Current Fiscal Year End Date Surety bonds issued Surety Bonds Surety Bonds issued. Finance lease liabilities Finance leases Finance Lease, Liability Reserves Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Reserves Intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Number of securities called by warrants (in shares) Class of Warrant or Right, Number of Securities Called by Warrants or Rights 2021 Lessee Liability Payments Due Next Twelve Months Lessee Liability Payments Due Next Twelve Months Tax credit carryforward Tax credits Deferred Tax Assets, Tax Credit Carryforwards Accumulated depreciation Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, Accumulated Depreciation and Amortization Thereafter Finance Lease, Liability, to be Paid, after Year Five Aggregate intrinsic value, vested (less than) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested Greater than 120 days past due Financing Receivables, Greater than 120 Days Past Due [Member] Financing Receivables, Greater than 120 Days Past Due Acquisition of a business, net of cash and restricted cash acquired Payments to Acquire Businesses, Net of Cash And Restricted Cash Acquired Payments to Acquire Businesses, Net of Cash And Restricted Cash Acquired Grants in period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures 2020 Financing Receivable, Year One, Originated, Current Fiscal Year 2023 Lessee Liability Payments Due in Three Years Lessee Liability Payments Due in Three Years Total net deferred tax liabilities Deferred Tax Liabilities, Net, Excluding Certain Deferred Tax Assets Deferred Tax Liabilities, Net, Excluding Certain Deferred Tax Assets SUPPLEMENTAL DISCLOSURES Supplemental Cash Flow Information [Abstract] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Proceeds from collection of notes receivable Proceeds from Collection of Notes Receivable Royalty fee Royalty Expense Property, Plant and Equipment Property, Plant and Equipment [Line Items] Certain items Certain Items Adjusted EBITDA Reconciliation Represents certain items that are used to reconcile Adjusted EBITDA to Net Income Attributable to Common Shareholders Long-Lived Tangible Asset [Domain] Long-Lived Tangible Asset [Domain] Convertible Notes Convertible Debt [Member] Composition of property and equipment Property, Plant and Equipment [Table Text Block] ILG Acquisition purchase accounting adjustment Change In Business Combination Acquisition Of Less Than 100 Percent Noncontrolling Interest Fair Value Change In Business Combination Acquisition Of Less Than 100 Percent Noncontrolling Interest Fair Value Stock Repurchase Program Stock Repurchase Program [Roll Forward] Stock Repurchase Program [Roll Forward] 2017 Financing Receivables Past Due Fourth Year [Member] Financing Receivables Past Due Fourth Year [Member] Other assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Assets The amount of other assets recognized as of the acquisition date. Finite-lived intangible assets, gross Finite-Lived Intangible Assets, Gross Commitments and Contingencies Disclosure [Table] Commitments and Contingencies Disclosure [Table] Commitments and Contingencies Disclosure [Table] Definite-lived intangible assets Finite-Lived Intangible Assets, Net [Abstract] Expected number of positions eliminated Restructuring and Related Cost, Expected Number of Positions Eliminated Increase (decrease) in revenue due to change in estimate of variable consideration for performance obligations Contract with Customer, Performance Obligation Satisfied in Previous Period Finance lease assets Finance Lease, Right-of-Use Asset, after Accumulated Amortization Lessee, Operating Lease, Liability, Maturity Lessee, Operating Lease, Liability, Maturity [Table Text Block] 2019 Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year Equity, Class of Treasury Stock [Line Items] Equity, Class of Treasury Stock [Line Items] Shares for basic (loss) earnings per share (in shares) Weighted Average Number of Shares Outstanding, Basic Non-cash issuance of treasury stock for employee stock purchase plan Stock Issued Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Risk-free rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Total lease payments Lessee Liability Payments Due Lessee Liability Payments Due Variable Interest Entities Consolidation, Variable Interest Entity, Policy [Policy Text Block] Carrying Amount Reported Value Measurement [Member] Plan Name [Domain] Plan Name [Domain] Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer REVENUE Revenue from Contract with Customer [Text Block] Dividends payable Dividends Payable Notes receivable Notes receivable (less than) Financing Receivable, before Allowance for Credit Loss, Noncurrent Tax restructuring transaction (in shares) Stock Issued During Period, Shares, Other ILG, Inc ILG, Inc [Member] ILG, Inc [Member] Operating leases Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Adjusted earnings before income taxes depreciation and amortization Adjusted Earnings Before Income Taxes Depreciation And Amortization A non-GAAP financial measure equal to adjusted earnings before income taxes, depreciation and amortization Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Inventory Inventory, Policy [Policy Text Block] Benefit (provision) for income taxes Provision for income taxes Tax benefit (provision) Income Tax Expense (Benefit) Cash, cash equivalents, and restricted cash, beginning of year Cash, cash equivalents, and restricted cash, end of year Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Property and Equipment Property, Plant and Equipment, Policy [Policy Text Block] Scheduled future principal payments for debt Schedule of Maturities of Long-term Debt [Table Text Block] Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-lived Intangible Assets, Major Class Name [Domain] Title of Individual [Domain] Title of Individual [Domain] Local Phone Number Local Phone Number Business acquisition, pro forma information Business Acquisition, Pro Forma Information [Table Text Block] Assets Reconciliation of Assets from Segment to Consolidated [Table Text Block] Schedule of Securitized Vacation Ownership Debt Schedule of Securitized Vacation Ownership Debt [Table Text Block] Tabular disclosure of the securitized vacation ownership debt of the variable interest entities. Investments in and Advances to Affiliates Categorization [Domain] Investments in and Advances to Affiliates Categorization [Domain] Schedule of indefinite-lived intangible assets Schedule of Indefinite-Lived Intangible Assets [Table Text Block] Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] Contract Liabilities Contract with Customer, Liability Other assets Increase (Decrease) in Other Operating Assets Credit facility Line of Credit Facility, Maximum Borrowing Capacity Award Type Award Type [Axis] Repayment of debt related to securitization transactions Repayments of debt Repayments of Secured Debt Term of contract Lessee, Finance Lease, Lease Not yet Commenced, Term of Contract Debt issuance cost amortization Amortization of Debt Issuance Costs Stock options Marriott Vacations Worldwide Corporation [Member] Marriott Vacations Worldwide Corporation Purchase commitment obligation due, 2021 Purchase Obligation, to be Paid, Year One Retained Earnings Retained Earnings [Member] Preferred stock, outstanding (in shares) Preferred Stock, Shares Outstanding Measurement Basis [Axis] Measurement Basis [Axis] Ancillary Business Ancillary Business [Member] Ancillary Business Short-term Debt, Type [Domain] Short-term Debt, Type [Domain] Exchange and other services revenues Service, Other [Member] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] Net cash, cash equivalents, and restricted cash (used in) provided by investing activities Net Cash Provided by (Used in) Investing Activities Outstanding, weighted average remaining life (less then in year) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Award Type [Domain] Award Type [Domain] Notes receivable reserves Financing Receivable, Allowance for Credit Loss [Table Text Block] Schedule of restructuring reserve activity Schedule of Restructuring Reserve by Type of Cost [Table Text Block] Exercisable (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Non-cash issuance of note receivable in connection with disposition to noncontrolling interest Notes Issued PROPERTY AND EQUIPMENT Property, Plant and Equipment Disclosure [Text Block] Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] 700 + FICO Score, Greater than 700 [Member] Cash surrender value of life insurance Cash Surrender Value of Life Insurance Vacation Ownership Notes Receivable Reserve for Credit Losses Loans and Leases Receivable, Allowance for Loan Losses Policy [Policy Text Block] No Score Nil Fico Score [Member] Nil credit score as defined by the external credit rating agency, Fair Isaac Corporation (FICO). Element name and standard label in FICO Score Greater Than [low end numeric value] [Member] or FICO Score Less Than [high end numeric value] [Member] formats. Treasury stock — at cost; 34,184,813 and 33,438,176 shares, respectively Treasury Stock, Value Cost of Shares Repurchased, Beginning of period Cost of Shares Repurchased, End of period Treasury Stock, Value, Gross Treasury Stock, Value, Gross EARNINGS PER SHARE Earnings Per Share [Text Block] Number of resorts Number of vacation ownership brands Number of Resorts Number of Resorts FINANCIAL INSTRUMENTS Financial Instruments Disclosure [Text Block] U.S. statutory income tax rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Cash Inflows Cash Inflows [Abstract] Cash Inflows [Abstract] New Accounting Standards New Accounting Pronouncements, Policy [Policy Text Block] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract]