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Inventory impairment Inventory Write-down Exercise price securities, excluded from computation of earnings per share (in usd per share) Exercise Price Securities, Excluded From Computation Of Earnings Per Share Exercise Price, stock options and SARs not included in the calculation of diluted earnings per share because exercise prices exceeded average market prices for the applicable periods. 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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. 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Total Cash Flows Between Transferee And Transferor Repayments Cash Flows Between Transferee And Transferor Repayments Cost reimbursements Revenues, Cost Reimbursement Revenues, Cost Reimbursement Goodwill Goodwill Net other comprehensive loss Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Title of Individual [Axis] Title of Individual [Axis] Timing of Transfer of Good or Service [Axis] Timing of Transfer of Good or Service [Axis] CASH DIVIDENDS DECLARED PER SHARE (in usd per share) Dividend per share (in usd per share) Common Stock, Dividends, Per Share, Declared Principal amount Debt Instrument, Face Amount 2015 and Prior Financing Receivable, Originated, More than Five Years before Current Fiscal Year Schedule of goodwill Schedule of Goodwill [Table Text Block] 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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Other Brand, Other [Member] Represents the information pertaining to the other brands, which are not specifically mentioned. Net cash, cash equivalents and restricted cash provided by (used in) financing activities Net Cash Provided by (Used in) Financing Activities Short-term Debt, Type [Axis] Short-term Debt, Type [Axis] Deferred revenue Deferred revenue Contract With Customer, Liability, Deferred Revenue Contract With Customer, Liability, Deferred Revenue Share-based compensation expense Share-based compensation expense Share-based Payment Arrangement, Expense Balance Sheet Location [Axis] Balance Sheet Location [Axis] Beginning Balance Ending balance Unrecognized Tax Benefits Employee stock plan issuance Stock Issued During Period, Value, Employee Stock Purchase Plan Investments by Consolidated and Nonconsolidated Entities [Domain] Investments by Consolidated and Nonconsolidated Entities [Domain] Common stock — $0.01 par value; 100,000,000 shares authorized; 75,249,855 and 75,020,272 shares issued, respectively Common Stock, Value, Issued Lease not yet commenced, right-of-use asset Lessee, Finance Lease, Lease Not yet Commenced, Right-Of-Use Asset Lessee, Finance Lease, Lease Not yet Commenced, Right-Of-Use Asset Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Borrowings from securitization transactions Proceeds from Issuance of Secured Debt Composition of inventory Inventory [Table Text Block] Inventory Table Schedule of financing receivable Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Decreases related to settlements with taxing authorities Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities Commitments and Contingencies Disclosure [Table] Commitments and Contingencies Disclosure [Table] Commitments and Contingencies Disclosure [Table] Receivable [Domain] Receivable [Domain] 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] Noncontrolling interests Stockholders' Equity Attributable to Noncontrolling Interest Stock awards granted, weighted average (in usd per share) grant date fair value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Vacation Ownership Notes Receivable Securitizations Vacation Ownership Notes Receivable Securitizations [Member] Vacation Ownership Notes Receivable Securitizations [Member] Total Vacation ownership notes receivable, net of reserve Time Sharing Transactions, Maturities of Notes Receivable, Net Inventory Disclosure [Abstract] Inventory Disclosure [Abstract] Asset acquisition, consideration transferred Asset Acquisition, Consideration Transferred Total purchase price of asset acquisition. INVESTING ACTIVITIES Net Cash Provided by (Used in) Investing Activities [Abstract] Common stock, shares issued (in shares) Beginning balance (in shares) Ending balance (in shares) Common Stock, Shares, Issued Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Time Sharing Transactions, Allowance for Uncollectible Accounts [Roll Forward] Time Sharing Transactions, Allowance for Uncollectible Accounts [Roll Forward] Valuation Allowance by Deferred Tax Asset [Axis] Valuation Allowance by Deferred Tax Asset [Axis] Segment Reporting [Abstract] Segment Reporting [Abstract] Debt Instrument [Line Items] Debt Instrument [Line Items] Acquired Acquired [Member] Acquired [Member] Accounts receivable Contracts With Customers, Accounts Receivable The right to consideration that is unconditional from contracts with customers that is classified within accounts receivable TOTAL MVW SHAREHOLDERS' EQUITY Beginning balance Ending balance Stockholders' Equity Attributable to Parent Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Concentration Risk Type [Domain] Concentration Risk Type [Domain] TOTAL LIABILITIES AND EQUITY Liabilities and Equity Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Income taxes Income Tax Disclosure [Text Block] Fair Value Portion at Fair Value Measurement [Member] Reconciliation of Assets from Segment to Consolidated [Table] Reconciliation of Assets from Segment to Consolidated [Table] Other Operating Supplies and Inventories Operating Supplies and Inventories Restricted stock units Restricted Stock Units (RSUs) [Member] Total MVW Shareholders' Equity Parent [Member] Vacation ownership notes receivable, net (including $1,797 and $1,750 from VIEs, respectively) Financing Receivable, after Allowance for Credit Loss Financing Receivable, after Allowance for Credit Loss Financing Receivable, after Allowance for Credit Loss General and administrative General and Administrative Expense General and Administrative Expense 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 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 Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets [Axis] Increases related to tax positions taken during the current period Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Equity Component [Domain] Equity Component [Domain] 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] Payment of dividends Payments of Dividends Entity Address, Address Line One Entity Address, Address Line One Stock options Marriott Vacations Worldwide Corporation [Member] Marriott Vacations Worldwide Corporation 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. Property and equipment, net Property, Plant and Equipment, Net Revolving Corporate Credit Facility, net Revolving Corporate Credit Facility Revolving Corporate Credit Facility [Member] Revolving Corporate Credit Facility [Member] Interest expense Interest expense, debt Interest Income (Expense), Nonoperating, Net Term Loan Term Loan [Member] Term Loan [Member] Share-based compensation Share-based Payment Arrangement [Text Block] Interest Rate Contract Interest Rate Contract [Member] NET (LOSS) INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS Net (loss) income attributable to common shareholders Net Income (Loss) Attributable to Parent Entity Address, State or Province Entity Address, State or Province 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 Number of notes receivable pools outstanding Number of Consolidated Notes Receivable Pools Outstanding Number of Consolidated Notes Receivable Pools Outstanding 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) OTHER COMPREHENSIVE GAIN (LOSS), NET OF TAX Other Comprehensive Income (Loss), Net of Tax Work-in-progress Inventory, Work in Process, Gross Rental Rental [Member] Rental [Member] Principal receipts Cash Flows Between Transferee And Transferor Proceeds From Principal Receipts Cash Flows Between Transferee And Transferor Proceeds From Principal Receipts 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. Class D notes Class D Notes [Member] Class D Notes Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest (LOSS) EARNINGS PER SHARE ATTRIBUTABLE TO COMMON SHAREHOLDERS Earnings Per Share [Abstract] San Francisco, California San Francisco California [Member] San Francisco California [Member] Finance leases Finance Lease, Liability Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] 2016 Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year Number of securities called by warrants (in shares) Class of Warrant or Right, Number of Securities Called by Warrants or Rights Debt, gross 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. Entity Interactive Data Current Entity Interactive Data Current Entity Common Stock, Shares Outstanding (in shares) Entity Common Stock, Shares Outstanding Non-cash transfer from property and equipment to inventory Transfer From Property And Equipment To Inventory Transfer From Property And Equipment To Inventory Trust Entity [Domain] Trust Entity [Domain] Trust Entity Advance deposits Advance deposits Contract With Customer, Liability, Advance Deposits Contract With Customer, Liability, Advance Deposits Cost reimbursements Cost Reimbursements [Member] Cost Reimbursements [Member] Defaulted vacation ownership notes receivable repurchase activity Financing Receivable, Allowance for Credit Losses, Repurchase Activity Financing Receivable, Allowance for Credit Losses, Repurchase Activity Litigation charges Gain (Loss) Related to Litigation Settlement Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code 2020 Financing Receivable, Year One, Originated, Current Fiscal Year Guarantor obligations, maximum exposure, due in fourth year Guarantor Obligations, Maximum Exposure, Undiscounted, Due In Fourth Year Guarantor Obligations, Maximum Exposure, Undiscounted, Due In Fourth Year Deferred Tax Asset [Domain] Deferred Tax Asset [Domain] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Proceeds from collection of notes receivable Proceeds from Collection of Notes Receivable Employee stock plan issuance (in shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans Royalty fee Royalty Expense Number of vacation ownership brands Number of Brands Number of Brands Common Stock Common Stock [Member] Product and Service [Domain] Product and Service [Domain] Accounts and nontrade receivable Accounts and Nontrade Receivable [Table Text Block] Accounts and Nontrade Receivable Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Allowance, purchased with credit deterioration, increase Financing Receivable, Allowance for Credit Loss, Purchased with Credit Deterioration, Increase Financing Receivable, Allowance for Credit Loss [Table] Financing Receivable, Allowance for Credit Loss [Table] Convertible notes Convertible Debt [Member] 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. Purchase of vacation ownership units for future transfer to inventory Purchase of vacation ownership units Purchase Of Vacation Ownership Units For Future Transfer To Inventory Purchase Of Vacation Ownership Units For Future Transfer To Inventory Geographic concentration risk Geographic Concentration Risk [Member] Share-based compensation plans APIC, Share-based Payment Arrangement, Recognition and Exercise Vacation ownership notes receivable Notes Receivable, Fair Value Disclosure Accounts receivable, net (including $14 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 2020 Time-Sharing Transaction, Notes Receivable, Maturity, Remainder Of Fiscal Year Time-Sharing Transaction, Notes Receivable, Maturity, Remainder Of Fiscal Year Debt Secured Debt Secured Debt [Member] Class of Treasury Stock [Table] Class of Treasury Stock [Table] Sales revenue, net Revenue Benchmark [Member] Property owners associations Property Owners Associations [Member] Property Owners Associations [Member] Restatement [Domain] Revision of Prior Period [Domain] Debt, stated interest rate Debt Instrument, Interest Rate, Stated Percentage Expected timing of satisfaction, period Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Total vacation ownership notes receivable Total vacation ownership notes receivable Financing Receivable, before Allowance for Credit Loss Receivables from Contracts with Customers Contract with Customer, Receivable The total right to consideration that is unconditional from contracts with customers 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. Performance obligation satisfied in previous period Contract with Customer, Performance Obligation Satisfied in Previous Period 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] 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 EXPENSES Costs and Expenses [Abstract] Risk-free rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Treasury stock, shares (in shares) Number of shares repurchased (in shares) Number of shares repurchased (in shares) Treasury Stock, Shares Foreign currency translation adjustments Foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax 2017 Financing Receivables Past Due Fourth Year [Member] Financing Receivables Past Due Fourth Year [Member] Hyatt and Other Hyatt and Other [Member] Hyatt and Other [Member] Carrying Amount Reported Value Measurement [Member] Originated Originated [Member] Originated [Member] Revenue and receivables Revenue from Contract with Customer [Text Block] Interest paid, net of amounts capitalized Interest Paid, Excluding Capitalized Interest, Operating Activities Note receivable (less than) Financing Receivable, before Allowance for Credit Loss, Noncurrent TOTAL EQUITY Beginning balance Ending balance Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Financing Receivable, Past Due [Line Items] Financing Receivable, Past Due [Line Items] Write-offs Time Sharing Transactions, Allowance for Uncollectible Accounts, Deductions for Direct Write-offs Charged Against Allowance Total Revenues Revenues Revenues Ancillary revenues Ancillary Revenues [Member] Ancillary Revenues Sale of vacation ownership products Time Share [Member] Benefit (provision) for income taxes Tax benefit (provision) Income Tax Expense (Benefit) Income taxes paid, net of refunds Income Taxes Paid, Net Cash, cash equivalents and restricted cash, beginning of period Cash, cash equivalents and restricted cash, end of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Time sharing transactions direct recoveries charged against allowance Time Sharing Transactions Direct Recoveries Charged Against Allowance Time Sharing Transactions Direct Recoveries Charged Against Allowance Scheduled future principal payments for debt Schedule of Maturities of Long-term Debt [Table Text Block] Title of Individual [Domain] Title of Individual [Domain] Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-lived Intangible Assets, Major Class Name [Domain] Diluted (in usd per share) Diluted (loss) earnings per share (in usd per share) Earnings Per Share, Diluted Variable Interest Entity [Line Items] Variable Interest Entity [Line Items] Schedule of unrecognized tax benefits Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] Reconciliation of assets from segments Reconciliation of Assets from Segment to Consolidated [Table Text Block] Legacy-ILG Legacy ILG [Member] Legacy ILG [Member] Debt balances, net of unamortized debt issuance costs Schedule of Debt [Table Text Block] 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] Corporate credit facility Corporate Credit Facility [Member] Corporate Credit Facility [Member] Decreases related to tax positions taken during a prior period Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Investments, All Other Investments [Abstract] Investments, All Other Investments [Abstract] 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] Contract Liabilities Contract with Customer, Liability Other assets Increase (Decrease) in Other Operating Assets Information technology hardware and software Information Systems and Technology [Member] Information Systems and Technology Balance at December 31, 2019 Balance at March 31, 2020 Indefinite-lived Intangible Assets (Excluding Goodwill) Credit 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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] Interest income and expense recognized as a result of our involvement with variable interest entities Interest Income and Interest Expense Disclosure [Table Text Block] Short-term Debt, Type [Domain] Short-term Debt, Type [Domain] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Effective income tax rate, percent Effective Income Tax Rate Reconciliation, Percent Exchange and other services revenues Service, Other [Member] Significant accounting policies and recent accounting standards 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 Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Number of vacation ownership units acquired Number Of Vacation Ownership Units Acquired Number Of Vacation Ownership Units Acquired Award Type [Domain] Award Type [Domain] Corporate and other Corporate and Other Income Expense Corporate and other income (expense). Document Transition Report Document Transition Report 2017 Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year Notes receivable reserves Financing Receivable, Allowance for Credit Loss [Table Text Block] Thereafter Time-Sharing Transaction, Notes Receivable, Maturity, after Year Four Time-Sharing Transaction, Notes Receivable, Maturity, after Year Four 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. Financing Receivable [Axis] Financing Receivable [Axis] Financing Receivable [Axis] Cash surrender value of life insurance Cash Surrender Value of Life Insurance Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] 700 + FICO Score, Greater than 700 [Member] Revenue, Initial Application Period Cumulative Effect Transition [Table] Revenue, Initial Application Period Cumulative Effect Transition [Table] Treasury stock — at cost; 34,192,119 and 33,438,176 shares, respectively Treasury Stock, Value Revenue, Remaining Performance Obligation Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block] Class A notes Class A Notes [Member] Class A Notes Earnings per share Earnings Per Share [Text Block] Indemnified tax liability Indemnified Tax Liability [Member] Indemnified Tax Liability [Member] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Financial Instruments Financial Instruments Disclosure [Text Block] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Vacation ownership notes receivable Financing Receivables [Text Block] Values of vacation ownership notes receivable that were securitized during the period Values Of Vacation Ownership Notes Receivable That Were Securitized During The Period Values Of Vacation Ownership Notes Receivable That Were Securitized During The Period Guarantor obligations, maximum exposure, due in second year Guarantor Obligations, Maximum Exposure, Undiscounted, Due In Second Year Guarantor Obligations, Maximum Exposure, Undiscounted, Due In Second Year Income Tax Contingency [Table] Income Tax Contingency [Table] New accounting pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract]