Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Table] Commitments and Contingencies Disclosure [Table] Commitments and Contingencies Disclosure [Table] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Scenario, Forecast Scenario, Forecast [Member] Catastrophic Event [Axis] Catastrophic Event [Axis] Catastrophic Event [Domain] Catastrophic Event [Domain] Hurricane Hurricane [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Revolving Corporate Credit Facility Revolving Corporate Credit Facility [Member] Revolving Corporate Credit Facility [Member] Period [Axis] Period [Axis] Period [Axis] Period [Domain] Period [Domain] Period [Domain] Fiscal Year 2019 Fiscal Year 2019 [Member] Fiscal Year 2019 [Member] Geographical Geographical [Axis] Geographical [Domain] Geographical [Domain] New York City New York City [Member] New York City [Member] Bali, Indonesia Resort Bali, Indonesia Resort Two [Member] Bali, Indonesia Resort Two [Member] San Francisco, California San Francisco California [Member] San Francisco California [Member] Litigation Case [Axis] Litigation Case [Axis] Litigation Case [Domain] Litigation Case [Domain] William and Sharon Petrick Case William and Sharon Petrick Case [Member] William and Sharon Petrick Case [Member] Loss Contingency Nature Loss Contingency Nature [Axis] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Information technology hardware and software Information Systems and Technology [Member] Information Systems and Technology Purchase Commitment, Excluding Long-term Commitment [Axis] Purchase Commitment, Excluding Long-term Commitment [Axis] Purchase Commitment, Excluding Long-term Commitment [Domain] Purchase Commitment, Excluding Long-term Commitment [Domain] Marco Island, Florida Marco Island Florida [Member] Marco Island Florida [Member] Property Subject to or Available for Operating Lease [Axis] Property Subject to or Available for Operating Lease [Axis] Property Subject to or Available for Operating Lease [Domain] Property Subject to or Available for Operating Lease [Domain] Land Lease Golf Course Land Improvements [Member] Golf Course Land Improvements [Member] Corporate Facilities Leases Facilities [Member] Facilities [Member] Other Operating Leases Other Operating Leases [Member] Other Operating Leases [Member] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Revolving Credit Facility Revolving Credit Facility [Member] Range Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Business Acquisition Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Kapalua Bay Settlement Kapalua Bay Settlement [Member] Kapalua Bay Settlement [Member] Ritz Carlton Club Aspen Highlands Ritz Carlton Club, Aspen Highlands [Member] Ritz Carlton Club, Aspen Highlands [Member] Commitments and Contingencies Disclosure [Line Items] Commitments and Contingencies Disclosure [Line Items] Commitments and Contingencies Disclosure [Line Items] Contractual commitments future minimum payments due Purchase Obligation Commitment to purchase due in 2018 Purchase Obligation, Due in Next Twelve Months Commitment to purchase due in 2019 Purchase Obligation, Due in Second Year Commitment to purchase due in 2020 Purchase Obligation, Due in Third Year Commitment to purchase due in 2021 Purchase Obligation, Due in Fourth Year Commitment to purchase due in 2022 Purchase Obligation, Due in Fifth Year Commitment to purchase due thereafter Purchase Obligation, Due after Fifth Year Minimum lease payments Capital Leases, Future Minimum Payments Due Expected number of ownership units to be acquired Expected Number of Ownership Units to be Acquired Expected Number of Ownership Units to be Acquired Surety bonds issued Surety Bonds Surety Bonds issued. Letters of credit outstanding Letters of Credit Outstanding, Amount Revolving credit facility amount Line of Credit Facility, Maximum Borrowing Capacity Number of plaintiffs in lawsuits Loss Contingency, Number of Plaintiffs Loss contingency, number of plaintiffs, released claims Loss Contingency, Number of Plaintiffs, Released Claims Loss Contingency, Number of Plaintiffs, Released Claims Number of properties Number of Properties Number of Properties Nonoperating income (expense) Gains And Other Income, Net Gains And Other Income, Net Gain on business interruption insurance recovery Gain on Business Interruption Insurance Recovery Lease term Lease Term Lease Term Debt Disclosure [Abstract] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Long-term Debt, Type Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Convertible Notes Convertible Debt [Member] Convertible Senior Notes Convertible Senior Notes [Member] Convertible Senior Notes [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Principal amount Long-term Debt, Gross Unamortized debt discount Debt Instrument, Unamortized Discount Unamortized debt issuance costs Unamortized Debt Issuance Expense Long-term Debt Long-term Debt Equity component, net of issuance costs Debt Instrument, Convertible, Carrying Amount of Equity Component Organization, Consolidation and Presentation of Financial Statements [Abstract] Schedule of Variable Interest Entities [Table] Schedule of Variable Interest Entities [Table] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Vacation ownership notes receivable, net of reserves Vacation Ownership Notes Receivable [Member] Vacation Ownership Notes Receivable [Member] Interest receivable Interest Receivable [Member] Interest Receivable Restricted cash Restricted Cash [Member] Restricted Cash Interest payable Interest Payable [Member] Interest Payable Variable Interest Entities Variable Interest Entities [Axis] Variable Interest Entity, Classification [Domain] Variable Interest Entity, Classification [Domain] Variable Interest Entity Variable Interest Entity, Primary Beneficiary [Member] Accounts Notes Loans And Financing Receivable By Receivable Receivable Type [Axis] Receivable [Domain] Receivable [Domain] Vacation Ownership Notes Receivable Securitizations Vacation Ownership Notes Receivable Securitizations [Member] Vacation Ownership Notes Receivable Securitizations [Member] Warehouse Credit Facility Warehouse Credit Facility [Member] Warehouse Credit Facility [Member] Non-Recourse Debt Non Recourse Debt [Member] Non Recourse Debt Variable Interest Entity [Line Items] Variable Interest Entity [Line Items] VIE Assets Variable Interest Entity, Consolidated, Carrying Amount, Assets VIE Liabilities Variable Interest Entity, Consolidated, Carrying Amount, Liabilities Receivables [Abstract] VACATION OWNERSHIP NOTES RECEIVABLE Financing Receivables [Text Block] Florida FLORIDA Variable Interest Entity, Not Primary Beneficiary Variable Interest Entity, Not Primary Beneficiary [Member] Noncontrolling interest Stockholders' Equity Attributable to Noncontrolling Interest Limit to repurchasing defaulted mortgage notes at the outstanding principal balance Percentage of Defaulted Mortgage Loans Repurchase The percentage of the initial mortgage balance of securitized mortgage notes receivable that we are limited in repurchasing upon default, based on the Timeshare note securitization transaction documents for each transaction. Voluntary repurchase of defaulted notes receivable Defaulted Mortgage Loans Repurchased The amount of defaulted mortgage notes receivable that were voluntarily repurchased for the period. Voluntary repurchase of other non-defaulted notes receivable Non Defaulted Notes Receivable Repurchased The amount of non-defaulted notes receivable that were voluntarily repurchased for the period. Aggregate funding that could be required above the overcollateralization Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Additional Aggregate Amount that Could be Required Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Additional Aggregate Amount that Could be Required Capital leases, lessor balance sheet Capital Leases, Lessor Balance Sheet, Net Investment in Direct Financing and Sales Type Leases, Noncurrent Notes receivable Notes, Loans and Financing Receivable, Gross, Noncurrent Maximum loss exposure, amount (less than) Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount Number of vacation ownership units acquired Number Of Vacation Ownership Units Acquired Number Of Vacation Ownership Units Acquired Inventory Inventory Timeshare Total of (1) improvements, (2) held-for-sale, (3) land and land under development, (4) construction-in-process, and (5) operating supplies, held in the normal course of business. Other assets Other Assets Other Other Liabilities Accounting Policies [Abstract] Each Reference to Particular Year in These Financial Statements Means Fiscal Year Ended on Date Shown Fiscal Period [Table Text Block] Tabular disclosure may include identification of the fiscal period end-date, the length of the fiscal period, any reporting period lag between the entity and its subsidiaries, or equity investees. If a reporting lag exists, the closing date of the entity having a different period end is generally noted, along with an explanation of the necessity for using different closing dates. Any intervening events that materially affect the entity's financial position or results of operations are generally also disclosed. Equity [Abstract] SHAREHOLDERS' EQUITY Stockholders' Equity Note Disclosure [Text Block] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Estimated useful lives of the assets Property, Plant and Equipment, Useful Life Statement of Comprehensive Income [Abstract] Net income Net Income (Loss) Attributable to Parent Other comprehensive income (loss), net of tax: Other Comprehensive Income (Loss), Net of Tax [Abstract] Foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Derivative instrument adjustment, net of tax Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax Total other comprehensive income (loss), net of tax Other Comprehensive Income (Loss), Net of Tax COMPREHENSIVE INCOME Comprehensive Income (Loss), Net of Tax, Attributable to Parent Statement of Cash Flows [Abstract] OPERATING ACTIVITIES Net Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation Depreciation Amortization of Debt Issuance Costs and Discounts Amortization of Debt Issuance Costs and Discounts Amortization of debt discount and issuance costs Amortization of Debt Issuance Costs Provision for loan losses Provision for Loan and Lease Losses Share-based compensation Share-based Compensation Loss (gain) on disposal of property and equipment, net Gain (Loss) on Disposition of Property Plant Equipment 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. Net change in assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Accounts and contracts receivable Increase (Decrease) in Accounts and Other Receivables 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. 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. Inventory Increase (Decrease) in Inventories 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 operating properties for future conversion to inventory Purchase of Operating Hotels for Future Conversion to Inventory Cash Outflow Cash outflow for the portion of the purchase of operating hotels to be converted to timeshare interests in the future. Other assets Increase (Decrease) in Other Operating Assets Accounts payable, advance deposits and accrued liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Liability for Marriott Rewards customer loyalty program Increase (Decrease) in Customer Loyalty Program Liability Deferred revenue Increase (Decrease) in Deferred Revenue Payroll and benefit liabilities Increase (Decrease) in Employee Related Liabilities Deferred compensation liability Increase (Decrease) in Deferred Compensation Other liabilities Increase (Decrease) in Other Operating Liabilities Other, net Other Operating Activities, Cash Flow Statement Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities INVESTING ACTIVITIES Net Cash Provided by (Used in) Investing Activities [Abstract] Capital expenditures for property and equipment (excluding inventory) Payments to Acquire Property, Plant, and Equipment Purchase of company owned life insurance Payments for (Proceeds from) Life Insurance Policies Purchase of operating property to be sold Purchase Of Operating Hotel To Be Sold Cash Outflow Purchase Of Operating Hotel To Be Sold Cash Outflow Dispositions, net Proceeds from Sale of Other Property, Plant, and Equipment Net cash (used in) provided by investing activities Net Cash Provided by (Used in) Investing Activities FINANCING ACTIVITIES Net Cash Provided by (Used in) Financing Activities [Abstract] Borrowings from securitization transactions Proceeds from Issuance of Secured Debt Repayment of debt related to securitization transactions Repayments of Secured Debt Borrowings from Revolving Corporate Credit Facility Proceeds from Lines of Credit Repayment of Revolving Corporate Credit Facility Repayments of Lines of Credit Proceeds from issuance of Convertible Notes Proceeds from Convertible Debt Purchase of Convertible Note Hedges Payments for Derivative Instrument, Financing Activities Proceeds from issuance of Warrants Proceeds from Issuance of Warrants Proceeds from vacation ownership inventory arrangement Proceeds from Sale of Assets Financing Activities Proceeds from Sale of Assets, Financing Activities Debt issuance costs Payments of Debt Issuance Costs Repurchase of common stock Payments for Repurchase of Common Stock Redemption of mandatorily redeemable preferred stock of consolidated subsidiary Payments for Repurchase of Redeemable Preferred Stock Payment of dividends Payments of Dividends Payment of withholding taxes on vesting of restricted stock units Restricted Stock, Value, Shares Issued Net of Tax Withholdings Other, net Proceeds from (Payments for) Other Financing Activities Net cash provided by (used in) financing activities Net Cash Provided by (Used in) Financing Activities Effect of changes in exchange rates on cash, cash equivalents and restricted cash Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Increase (decrease) in cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Cash, cash equivalents and restricted cash, beginning of year Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash, cash equivalents and restricted cash, end of year SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING AND FINANCING ACTIVITIES Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Dividends payable Dividends Payable Non-cash issuance of debt in connection with acquisition of vacation ownership units Noncash or Part Noncash Acquisition, Debt Assumed Non-cash transfer from Inventory to Property and equipment Transfer From Inventory To Property And Equipment Transfer From Inventory To Property And Equipment Non-cash transfer of debt Non Cash Transfer Of Debt Non Cash Transfer Of Debt Property acquired via capital lease Capital Lease Obligations Incurred Future Minimum Payments Receivable [Table] Future Minimum Payments Receivable [Table] Future Minimum Payments Receivable [Table] Weighted Average Weighted Average [Member] Products and Services Products and Services [Axis] Products and Services [Domain] Products and Services [Domain] Non-Securitized Vacation Ownership Notes Receivable Nonsecuritized Vacation Ownership Notes Receivable [Member] Nonsecuritized vacation ownership notes receivable Securitized Vacation Ownership Notes Receivable Securitized Vacation Ownership Notes Receivable [Member] Securitized vacation ownership notes receivable Future Minimum Payments Receivable [Line Items] Future Minimum Payments Receivable [Line Items] Future Minimum Payments Receivable [Line Items] 2018 Time Sharing Transactions, Maturities of Notes Receivable, Year One 2019 Time Sharing Transactions, Maturities of Notes Receivable, Year Two 2020 Time Sharing Transactions, Maturities of Notes Receivable, Year Three 2021 Time Sharing Transactions, Maturities of Notes Receivable, Year Four 2022 Time Sharing Transactions, Maturities of Notes Receivable, Year Five Thereafter Time Sharing Transactions, Maturities of Notes Receivable, Future Years Balance at year-end 2017 Time Sharing Transactions, Maturities of Notes Receivable, Net Stated interest rate Time-sharing Transactions, Stated Interest Rate for Notes Receivable Business Combinations [Abstract] ACQUISITIONS AND DISPOSITIONS Mergers, Acquisitions and Dispositions Disclosures [Text Block] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Vacation ownership notes receivable — securitized Eligible for securitization Eligible for Securitization [Member] Eligible for Securitization [Member] Not eligible for securitization Not Eligible for Securitization [Member] Not Eligible for Securitization [Member] Vacation ownership notes receivable — non-securitized Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Vacation ownership notes receivable, net Financing Receivable, Net Inventory Disclosure [Abstract] Composition of Inventory Inventory [Table Text Block] Inventory Table CONTINGENCIES AND COMMITMENTS Commitments and Contingencies Disclosure [Text Block] Segment Reporting [Abstract] Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Table] Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Table] Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Operating Segments Operating Segments [Member] Corporate and other Corporate, Non-Segment [Member] Business Segments Segments [Axis] Segments [Domain] Segments [Domain] North America North America Segment [Member] North America Segment [Member] Asia Pacific Asia Pacific Segment [Member] Asia Pacific Segment [Member] Europe Europe Segment [Member] Europe Segment. Segment Reporting, Other Significant Reconciling Item [Line Items] Segment Reporting, Other Significant Reconciling Item [Line Items] Capital Expenditures Payments to Acquire Property, Plant, and Equipment and Inventory Payments to Acquire Property, Plant, and Equipment and Inventory Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Total Assets Assets Property, Plant and Equipment [Abstract] PROPERTY AND EQUIPMENT Property, Plant and Equipment Disclosure [Text Block] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Expected volatility Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Dividend yield Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Risk-free rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Expected term (in years) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Dividends declared per share of common stock (in usd per share) Common Stock, Dividends, Per Share, Declared Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Award Type Award Type [Axis] Equity Award [Domain] Equity Award [Domain] Service based RSUs Service Based Restricted Stock Unit [Member] Service Based Restricted Stock Unit [Member] Performance based RSUs Performance Based Restricted Stock Unit [Member] Performance Based Restricted Stock Unit [Member] Restricted stock units Restricted Stock Units (RSUs) [Member] SARs Stock Appreciation Rights (SARs) [Member] Stock options Marriott Vacations Worldwide Corporation [Member] Marriott Vacations Worldwide Corporation Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Deferred compensation costs related to unvested awards Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized 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 Deferred compensation expense weighted average expected recognition period Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Segment Reporting, Reconciliation of Net Income (Loss) Segment to Consolidated [Table] Segment Reporting, Reconciliation of Net Income (Loss) Segment to Consolidated [Table] Segment Reporting, Reconciliation of Net Income (Loss) Segment to Consolidated [Table] Segment Reporting, Reconciliation of Net Income (Loss) Segment to Consolidated [Line Items] Segment Reporting, Reconciliation of Net Income (Loss) Segment to Consolidated [Line Items] Segment Reporting, Reconciliation of Net Income (Loss) Segment to Consolidated [Line Items] Segment financial results Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Benefit (provision) for income taxes Income Tax Expense (Benefit) NET INCOME Income Tax Disclosure [Abstract] Deferred Tax Assets Deferred Tax Assets, Gross [Abstract] Inventory Deferred Tax Assets, Inventory Reserves Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Reserves Long lived intangible assets Deferred Tax Assets, Goodwill and Intangible Assets Net operating loss carry-forwards Deferred Tax Assets, Operating Loss Carryforwards Tax credits Deferred Tax Assets, Tax Credit Carryforwards Other, net Deferred Tax Assets, Other Deferred tax assets Deferred Tax Assets, Gross Less valuation allowance Deferred Tax Assets, Valuation Allowance Net deferred tax assets Deferred Tax Assets, Net of Valuation Allowance Deferred Tax Liabilities Deferred Tax Liabilities, Gross [Abstract] Property and equipment Deferred Tax Liabilities, Property, Plant and Equipment 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. Deferred tax liabilities Deferred Tax Liabilities, Gross Total net deferred tax liabilities Deferred Tax Liabilities, Net, Excluding Certain Deferred Tax Assets Deferred Tax Liabilities, Net, Excluding Certain Deferred Tax Assets Title of Individual [Axis] Title of Individual [Axis] Relationship to Entity [Domain] Relationship to Entity [Domain] Employees and Non Employee Directors Employees And Non Employee Directors [Member] Employees And Non Employee Directors [Member] Stock awards, vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Stock awards, expiration from grant date Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period Earnings Per Share [Abstract] 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] Employee Stock Purchase Plan Employee Stock Purchase Plan [Member] Employee Stock Purchase Plan [Member] Number of shares authorized (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Number of shares available for grant Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Weighted average grant date fair value (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 Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Aggregate intrinsic value, vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested 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 Stock options outstanding (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Stock options exercisable (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Grants in period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Outstanding (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Options, outstanding, weighted average remaining contractual term Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term 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 Subsequent Events [Abstract] Subsequent Event [Table] Subsequent Event [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event Subsequent Event [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Accounting Changes and Error Corrections [Abstract] Schedule of New Accounting Pronouncements and Changes in Accounting Principles Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Bali, Indonesia Resort One Bali, Indonesia Resort One [Member] Bali, Indonesia Resort One [Member] Big Island Of Hawaii Big Island Of Hawaii [Member] Big Island Of Hawaii [Member] Miami, Florida Miami Florida [Member] Miami Florida [Member] Surfers Paradise, Australia Surfers Paradise Australia [Member] Surfers Paradise Australia [Member] Washington, D.C. DISTRICT OF COLUMBIA San Diego, California San Diego California [Member] San Diego California [Member] Hawaii HAWAII Notes Receivable Notes Receivable [Member] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Furniture And Equipment Furniture And Equipment [Member] Furniture And Equipment [Member] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Gains and other income Other Operating Income (Expense) [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Consideration transferred Asset Acquisition, Consideration Transferred Total purchase price of asset acquisition. Inventory Asset Acquisition, Recognized Identifiable Assets Acquired, Inventory Amount of purchase price allocated to Inventory. Property And equipment Asset Acquisition, Recognized Identifiable Assets Acquired, Property And Equipment Amount of purchase price allocated to Property and Equipment. Purchase of vacation ownership units for future transfer to inventory Value of consideration given Other Significant Noncash Transaction, Value of Consideration Given Acquisition of an operating hotel Business Combination, Consideration Transferred Cash paid for acquisition of operating hotel Payments to Acquire Businesses, Gross Number of units disposed of in connection with disposition of asset Number Of Units Disposed Of In Connection With Disposition Of Asset Number of units disposed of in connection with disposition of real estate. Cash from disposal of property Significant Acquisitions and Disposals Acquisition Cash Proceeds The cash paid or proceeds received by the entity in the significant acquisition or disposal. Gain on sale of real estate, other Gain (Loss) on Sale of Properties Assumed net liabilities for acquisition of operating hotel Business Combination, Consideration Transferred, Liabilities Incurred Purchase price allocation, land Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Land Purchase price allocation, building and leasehold improvements Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Buildings Purchase price allocation, furniture and equipment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Equipment Guarantee of net operating income associated with the disposition of real estate Guarantee Of Net Operating Income Associated With The Disposition Of Real Estate Guarantee of net operating income associated with the disposition of real estate. Number of rooms Number Of Rooms Acquired In Connection With Acquisition Of Real Estate Number Of Rooms Acquired In Connection With Acquisition Of Real Estate Acquisition of rooms of an operating hotel Payments to Acquire Real Estate Purchase price allocation, property and equipment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Purchase price allocation, other assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets Purchase of operating hotels Purchase of Operating Hotel Cash Outflow Cash outflow for the purchase of an operating hotel to be converted to timeshare interests. Capital expenditures for property and equipment (excluding inventory) Purchase and sale agreement, gross cash consideration Significant Acquisitions and Disposals Consideration Received and Receivable Significant Acquisitions and Disposals Consideration Received and Receivable Vacation ownership inventory sold Inventory Sold Subject to Conditional Repurchase Inventory sold subject to conditional repurchase. Non cash proceeds on sale of property Noncash or Part Noncash Divestiture, Amount of Consideration Received Debt, stated interest rate Debt Instrument, Interest Rate, Stated Percentage BUSINESS SEGMENTS Segment Reporting Disclosure [Text Block] SHARE-BASED COMPENSATION Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Contractual interest expense Interest Expense, Debt, Excluding Amortization Amortization of debt discount Amortization of Debt Discount (Premium) Debt issuance cost amortization Interest Expense, Debt Interest Expense, Debt Interest Income and Interest Expense Disclosure [Table Text Block] Interest Income and Interest Expense Disclosure [Table Text Block] Classifications of Consolidated Variable Interest Entities Schedule of Variable Interest Entities [Table Text Block] Cash Flows Between Company and Variable Interest Entities Cash Flows Between Securitization Special Purpose Entity SPE And Transferor Text Block Cash Flows Between Securitization Special Purpose Entity SPE And Transferor Text Block Share-based compensation expense Allocated Share-based Compensation Expense Non-Interest Bearing Note Payable Non-Interest Bearing Note Payable [Member] Non-Interest Bearing Note Payable [Member] Non-Interest Bearing Note Payable Notes Payable, Other Payables [Member] Other Debt Other Debt [Member] Other Debt Fair Value, by Balance Sheet Grouping, Disclosure Item Amounts Measurement Basis [Axis] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Fair Value Portion at Fair Value Measurement [Member] Carrying Amount Reported Value Measurement [Member] Debt Instrument, Convertible, Remaining Discount Amortization Period Debt Instrument, Convertible, Remaining Discount Amortization Period Debt, gross Debt And Capital 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 capital lease obligations, gross. Unamortized debt issuance costs Unamortized debt discount and issuance costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Unamortized debt discount Debt, net Debt And Capital 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 capital lease obligations, net of unamortized discount and debt issuance costs. Capital lease obligations Capital Lease Obligations Revenues Reconciliation of Revenue from Segments to Consolidated [Table Text Block] Net Income Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block] Depreciation Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Table Text Block] Assets Reconciliation of Assets from Segment to Consolidated [Table Text Block] Capital Expenditures (including inventory) Schedule Of Capital Expenditures By Segment Table [Text Block] Schedule Of Capital Expenditures By Segment Table [Text Block] Stock Repurchase Activity under Current Stock Repurchase Program Class of Treasury Stock [Table Text Block] Cash Dividend Declared Dividends Declared [Table Text Block] Significant Accounting Policies [Table] Significant Accounting Policies [Table] Significant Accounting Policies [Table] Operations located outside the United States Outside United States [Member] Outside United States Equity Components Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Retained Earnings Retained Earnings [Member] Significant Accounting Policies [Line Items] Significant Accounting Policies [Line Items] Significant Accounting Policies [Line Items] Number of business segments Number of Reportable Segments Number of countries and territories in which company operates Number of Countries in which Entity Operates Number of primary sources of revenues generated Number of Sources of Revenues Number of Sources of Revenues 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 Additional days in reporting period Fiscal Period Duration, Additional Days In Reporting Period Fiscal Period Duration, Change In Reporting Period, Number Of Days Fiscal period duration Fiscal Period Duration 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] Outstanding at beginning of year (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Granted during 2016 (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Exercised Forfeited during 2016 (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Outstanding at year-end (in shares) 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] Outstanding at beginning of year (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 Granted (in usd per share) Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Granted Weighted Average Exercise Price Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Granted Weighted Average Exercise Price 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 Forfeited (in usd per share) Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited Weighted Average Exercise Price Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited Weighted Average Exercise Price Outstanding at year-end (in usd per share) Intrinsic value, outstanding Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Outstanding 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 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 Exercisable, weighted average value (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Exercisable, Weighted Average Value, Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Exercisable, Weighted Average Value, Exercise Price 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 Current: Current Income Tax Expense (Benefit), Continuing Operations [Abstract] – U.S. Federal Current Federal Tax Expense (Benefit) – U.S. State Current State and Local Tax Expense (Benefit) – Non-U.S. Current Foreign Tax Expense (Benefit) Current Income Tax Expense (Benefit) Current Income Tax Expense (Benefit) Deferred: Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] – U.S. Federal Deferred Federal Income Tax Expense (Benefit) – U.S. State Deferred State and Local Income Tax Expense (Benefit) – Non-U.S. Deferred Foreign Income Tax Expense (Benefit) Deferred income taxes Deferred Income Tax Expense (Benefit) Provision for income taxes Statement of Financial Position [Abstract] Statement [Table] Statement [Table] Statement [Line Items] Statement [Line Items] Restricted cash Restricted Cash and Cash Equivalents Accounts and contracts receivable net Accounts And Contracts Receivable Net Amounts due from customers for goods, services, and vacation ownership contracts that have been delivered or sold in the normal course of business. Amounts are net of related allowances established for estimated uncollectible amounts. Accrued liabilities Accrued Liabilities Debt net Preferred stock, par value (in usd per share) Preferred Stock, Par or Stated Value Per Share Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Preferred stock, issued (in shares) Preferred Stock, Shares Issued Preferred stock, outstanding (in shares) Preferred Stock, Shares Outstanding Common stock, par value (in usd per share) Common Stock, Par or Stated Value Per Share Common stock, shares authorized (in shares) Common Stock, Shares Authorized Common stock, shares issued (in shares) Common Stock, Shares, Issued Treasury stock, shares (in shares) Treasury Stock, Shares Schedule Of Stock Repurchase Program [Table] Schedule Of Stock Repurchase Program [Table] Schedule Of Stock Repurchase Program [Table] Treasury Stock Treasury Stock [Member] Stock Repurchase Program [Line Items] Stock Repurchase Program [Line Items] Stock Repurchase Program [Line Items] Stock Repurchase Program [Roll Forward] Stock Repurchase Program [Roll Forward] Stock Repurchase Program [Roll Forward] Number of Shares Repurchased, Beginning of period (in shares) Cost of Shares Repurchased, Beginning of period Treasury Stock, Value, Gross Treasury Stock, Value, Gross Average Price Paid per Share, Beginning of period (in usd per share) Stock Repurchased, Per Share Average Price Stock Repurchased, Per Share Average Price Number of Shares Repurchased, for the year (in shares) Treasury Stock, Shares, Acquired Cost of Shares Repurchased, for the year Treasury Stock, Value, Acquired, Cost Method Average Price Paid per Share, for the year (in usd per share) Treasury Stock Acquired, Average Cost Per Share Number of Shares Repurchased, End of period (in shares) Cost of Shares Repurchased, End of period Average Price Paid per Share, End of period (in usd per share) Document And Entity Information [Abstract] Document And Entity Information [Abstract] Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Trading Symbol Trading Symbol Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Current Reporting Status Entity Current Reporting Status Entity Voluntary Filers Entity Voluntary Filers Entity Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Public Float Entity Public Float Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Class of Warrant or Right [Axis] Class of Warrant or Right [Axis] Class of Warrant or Right [Domain] Class of Warrant or Right [Domain] Private Warrants Private Warrants [Member] Private Warrants [Member] Antidilutive Securities Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Performance Shares Performance Shares [Member] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Exercise price of warrants (in usd per share) Class of Warrant or Right, Exercise Price of Warrants or Rights Shares excluded from the calculation of diluted earnings per share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Stock options and SARs not included in the calculation of diluted earning per share because exercise prices exceeded market prices, exercise prices (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. Quarterly Financial Information Disclosure [Abstract] Revenues Revenues Expenses Costs and Expenses Basic earnings per share (in usd per share) Earnings Per Share, Basic Diluted earnings per share (in usd per share) Earnings Per Share, Diluted Composition of Property and Equipment Property, Plant and Equipment [Table Text Block] Schedule of Quarterly Financial Information Quarterly Financial Information [Table Text Block] Our Business Nature of Operations [Policy Text Block] Nature of Operations Our Spin-Off from Marriott International, Inc. Spin Off [Policy Text Block] Spin Off Disclosure Policy Principles of Consolidation and Basis of Presentation Basis of Presentation and Principles of Consolidation [Policy Text Block] Basis of Presentation and Principles of Consolidation Revenue Recognition Revenue Recognition, Policy [Policy Text Block] Inventory Inventory, Policy [Policy Text Block] Capitalization of Costs Capitalization of Costs [Policy Text Block] Disclosure of accounting policy for the capitalization of costs including interest and certain salaries and related costs incurred in connection with development and construction of sales centers, internally developed software and development and construction projects for our real estate inventory. Defined Contribution Plan Postemployment Benefit Plans, Policy [Policy Text Block] Deferred Compensation Plan Deferred Compensation Plan Policy [Text Block] Deferred Compensation Plan Policy [Text Block] Property and Equipment Property, Plant and Equipment, Policy [Policy Text Block] Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Restricted Cash Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Loan Loss Reserves Loans and Leases Receivable, Allowance for Loan Losses Policy [Policy Text Block] Variable Interest Entities Consolidation, Variable Interest Entity, Policy [Policy Text Block] 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. Valuation of Property and Equipment Property, Plant and Equipment, Impairment [Policy Text Block] Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] Derivative Instruments Derivatives, Policy [Policy Text Block] Non-U.S. Operations Foreign Currency Transactions and Translations Policy [Policy Text Block] Loss Contingencies Commitments and Contingencies, Policy [Policy Text Block] Share-Based Compensation Costs Compensation Related Costs, Policy [Policy Text Block] Convertible Senior Notes Debt, Policy [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Earnings Per Common Share Earnings Per Share, Policy [Policy Text Block] New Accounting Standards New Accounting Pronouncements, Policy [Policy Text Block] Future Adoption of Accounting Standards Future Adoption of New Accounting Standards Policy [Policy Text Block] Future Adoption of New Accounting Standards Policy [Policy Text Block] Income Statement [Abstract] REVENUES Revenues [Abstract] Sale of vacation ownership products Time Share Revenue Resort management and other services Resort Management And Other Services Revenue Resort management and other services revenues earned for managing resorts, for providing ancillary offerings including food and beverage, retail, and golf and spa offerings, from annual club dues and certain transaction-based fees charged to owners and other third parties for services and for providing other services to our guests. Financing Financial Services Revenue Rental Rental Revenue Revenue from transient rentals of inventory held for development and sale as interests in vacation ownership programs or residences or inventory controlled under various usage options permitted under vacation ownership programs. Cost reimbursements Reimbursement Revenue TOTAL REVENUES EXPENSES Costs and Expenses [Abstract] Cost of vacation ownership products Time Share Costs Marketing and sales Selling and Marketing Expense Resort management and other services Resort Management And Other Services Expenses Resort management and other services expense include costs to operate the food and beverage and other ancillary operations and overall customer support services, including reservations. Financing Financial Services Costs Rental Rental Expenses Costs including maintenance fees on unsold inventory, costs to provide alternate usage rights, subsidy payments to property owner associations, and marketing costs and direct operating and related expenses in connection with the rental business, including housekeeping, credit card expenses and reservation services. General and administrative General and Administrative Expense Litigation settlement Gain (Loss) Related to Litigation Settlement Organizational and separation related Organizational and Separation Related Charges Expense recorded for organization and separation related charges. Consumer financing interest Consumer Financing Interest Expense Consumer financing interest expense represents interest expense associated with the debt from our non-recourse warehouse credit facility and from the securitization of our vacation ownership notes receivable in the asset-backed securities market. Royalty fee Royalty Expense Impairment Asset Impairment Charges Cost reimbursements Cost of Reimbursable Expense TOTAL EXPENSES Gains and other income, net Interest expense Interest Income (Expense), Nonoperating, Net Other Other Nonoperating Expense INCOME BEFORE INCOME TAXES EARNINGS PER SHARE Earnings Per Share, Basic and Diluted [Abstract] Cash dividends declared per share of common stock (in usd per share) VARIABLE INTEREST ENTITIES Variable Interest Entity Disclosure [Text Block] Long Term Debt Maturities Repayments Of Principal [Table] Long Term Debt Maturities Repayments Of Principal [Table] Long Term Debt Maturities Repayments Of Principal [Table] Capital Leases Capital Leases [Member] Capital Leases [Member] 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] Debt Principal Payments Year Long-term Debt, Fiscal Year Maturity [Abstract] 2018 Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months 2019 Long-term Debt, Maturities, Repayments of Principal in Year Two 2020 Long-term Debt, Maturities, Repayments of Principal in Year Three 2021 Long-term Debt, Maturities, Repayments of Principal in Year Four 2022 Long-term Debt, Maturities, Repayments of Principal in Year Five Thereafter Long-term Debt, Maturities, Repayments of Principal after Year Five December 31, 2017 INVENTORY Inventory Disclosure [Text Block] Line of credit facility, maximum borrowing capacity Reconciliation of Depreciation by Segment [Table] Reconciliation of Depreciation by Segment [Table] Reconciliation of Depreciation by Segment [Table] Reconciliation of Depreciation by Segment [Line Items] Reconciliation of Depreciation by Segment [Line Items] Reconciliation of Depreciation by Segment [Line Items] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] Schedule of Financing Receivable, Allowance for Credit Losses [Table] Schedule of Financing Receivable, Allowance for Credit Losses [Table] Financing Receivable, Allowance for Credit Losses [Line Items] Financing Receivable, Allowance for Credit Losses [Line Items] Time Sharing Transactions, Allowance for Uncollectible Accounts [Roll Forward] Time Sharing Transactions, Allowance for Uncollectible Accounts [Roll Forward] Beginning Balance Time Sharing Transactions, Allowance for Uncollectible Accounts Provision for loan losses Provision for Loan Losses Expensed Securitizations Securitized Financing Receivable Securitized Financing Receivable Clean-up calls Financing Receivable, Allowance for Credit Losses, Clean Up Call Financing Receivable, Allowance for Credit Losses, Clean Up Call Clean-up of Warehouse Credit Facility Time Sharing Transactions, Clean-Up Of Warehouse Credit Facility Time Sharing Transactions, Clean-Up Of Warehouse Credit Facility Write-offs Time Sharing Transactions, Allowance for Uncollectible Accounts, Deductions for Direct Write-offs Charged Against Allowance Defaulted vacation ownership notes receivable repurchase activity Financing Receivable, Allowance for Credit Losses, Repurchase Activity Financing Receivable, Allowance for Credit Losses, Repurchase Activity Ending Balance DEBT Debt Disclosure [Text Block] Leases Future Minimum Payments [Table] Leases Future Minimum Payments [Table] Leases Future Minimum Payments [Table] Leases Future Minimum Payments [Line Items] Leases Future Minimum Payments [Line Items] Leases Future Minimum Payments [Line Items] Operating Leases Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract] 2018 Operating Leases, Future Minimum Payments Due, Next Twelve Months 2019 Operating Leases, Future Minimum Payments, Due in Two Years 2020 Operating Leases, Future Minimum Payments, Due in Three Years 2021 Operating Leases, Future Minimum Payments, Due in Four Years 2022 Operating Leases, Future Minimum Payments, Due in Five Years Thereafter Operating Leases, Future Minimum Payments, Due Thereafter Total minimum lease payments Operating Leases, Future Minimum Payments Due EARNINGS PER SHARE Earnings Per Share [Text Block] Finished goods Inventory, Real Estate, Timeshare Available-for-sale Work-in-progress Inventory, Work in Process, Gross Land and infrastructure Inventory, Land and Infrastructure Inventory, Land and Infrastructure Real estate inventory Inventory Timeshare, Gross Total of (1) improvements, (2) held-for-sale, (3) land and land under development, and (4) construction-in-process. Operating supplies and retail inventory Operating Supplies and Inventories Operating Supplies and Inventories Inventory Schedule of Financing Receivables Past Due [Table] Schedule of Financing Receivables Past Due [Table] Financing Receivable, Recorded Investment, Past Due [Line Items] Financing Receivable, Recorded Investment, Past Due [Line Items] Investment in notes receivable on non-accrual status Financing Receivable, Recorded Investment, Nonaccrual Status Average investment in vacation ownership notes receivable on non-accrual status during 2017 Financing Receivable Average Investment Nonaccrual Loans Financing Receivable Average Investment Nonaccrual Loans Cash Inflows Cash Inflows [Abstract] Cash Inflows [Abstract] Net proceeds from vacation ownership notes receivable securitizations Proceeds from Accounts Receivable Securitization Principal receipts Cash Flows Between Transferee And Transferor Proceeds From Principal Receipts Cash Flows Between Transferee And Transferor Proceeds From Principal Receipts Interest receipts Cash Flows Between Transferee And Transferor Proceeds From Interest Receipts Cash Flows Between Transferee And Transferor Proceeds From Interest Receipts Reserve release Cash Flows Between Transferee and Transferor Reserve Release Cash Flows Between Transferee and Transferor Reserve Release Total Cash Flows Between Transferee And Transferor Proceeds Cash Flows Between Transferee And Transferor Proceeds Cash Outflows Cash Outflows [Abstract] Cash Outflows [Abstract] 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 Voluntary repurchases of defaulted vacation ownership notes receivable Repayment of Warehouse Credit Facility Cash Flows Between Transferee And Transferor Repayments Of Warehouse Credit Facility Cash flows between transferee and transferor repayments of warehouse credit facility Interest to investors Cash Flows Between Transferee And Transferor Repayments Of Interest To Investors Cash Flows Between Transferee And Transferor Repayments Of Interest To Investors Funding of restricted cash Cash Flows Between Transferee and Transferor, Funding of Restricted Cash Cash flows between transferee and transferor, funding of restricted cash, due to timing. Total Cash Flows Between Transferee And Transferor Repayments Cash Flows Between Transferee And Transferor Repayments Net Cash Flows Cash Flows Between Transferee and Transferor Net Cash Flows Between Transferee And Transferor Net. Defined Contribution Plan, Cost Defined Contribution Plan, Cost Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] EDC Executive Deferred Compensation Plan [Member] Executive Deferred Compensation Plan [Member] Deferred Compensation Plan Deferred Compensation Plan [Member] Deferred Compensation Plan [Member] Legal Entity Legal Entity [Axis] Entity [Domain] Entity [Domain] Marriott International Marriott International Inc [Member] Marriott International Inc Annual rate of return Deferred Compensation Arrangement, Annual Rate of Return Deferred Compensation Arrangement, Annual Rate of Return Additional discretionary contributions Defined Benefit Plan Employer Discretionary Contribution Amount Defined Benefit Plan Employer Discretionary Contribution Amount Minimum required fixed rate of return (at least) Deferred Compensation Arrangement, Minimum Required Fixed Rate Of Return, Percentage Deferred Compensation Arrangement, Minimum Required Fixed Rate Of Return, Percentage Cash surrender value of life insurance Cash Surrender Value of Life Insurance Debt Disclosure [Table] Debt Disclosure [Table] Debt Disclosure [Table] Debt Conversion Description [Axis] Debt Conversion Description [Axis] Debt Conversion, Name [Domain] Debt Conversion, Name [Domain] Conversion Premium, Stock Price Exceeds The Conversion Price Conversion Premium, Stock Price Exceeds The Conversion Price [Member] Conversion Premium, Stock Price Exceeds The Conversion Price [Member] Convertible Note Hedges Convertible Note Hedges [Member] Convertible Note Hedges [Member] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] Euro Dollar Rate Eurodollar [Member] Trust Entity [Axis] Trust Entity [Axis] Trust Entity [Axis] Trust [Domain] Trust [Domain] Trust [Domain] MVW Owner Trust 2015-1 Mvw Holding [Member] Mvw Holding [Member] Class A Notes Class A Notes [Member] Class A Notes [Member] Class B Notes Class B Notes [Member] Class B Notes [Member] Class C Notes Class C Notes [Member] Class C Notes [Member] Over-Allotment Option Over-Allotment Option [Member] Previous Revolving Corporate Credit Facility Previous Revolving Corporate Credit Facility [Member] Previous Revolving Corporate Credit Facility [Member] Short-term Debt, Type [Axis] Short-term Debt, Type [Axis] Short-term Debt, Type [Domain] Short-term Debt, Type [Domain] Letter of Credit Letter of Credit [Member] Debt Disclosure [Line Items] Debt Disclosure [Line Items] Debt Disclosure [Line Items] Debt, weighted average interest rate Debt, Weighted Average Interest Rate Interest rate, effective percentage Debt Instrument, Interest Rate, Effective Percentage Cash paid for interest, net of amounts capitalized Interest Paid, Net Securitization pool of vacation ownership notes receivable Values of Vacation Ownership Notes Receivable that Were Securitized During the Period Values of Vacation Ownership Notes Receivable that Were Securitized During the Period Proceeds from accounts receivable securitization Debt instrument face amount Debt Instrument, Face Amount Number of notes receivable pools failed to perform within the established parameters Number of Notes Receivable Pools Under Performance Triggers Number of Notes Receivable Pools Under Performance Triggers Number of notes receivable pools outstanding Number of Consolidated Notes Receivable Pools Outstanding Number of Consolidated Notes Receivable Pools Outstanding Conversion ratio Debt Instrument, Convertible, Conversion Ratio Conversion price (in usd per share) Debt Instrument, Convertible, Conversion Price Threshold trading days Debt Instrument, Convertible, Threshold Trading Days Threshold consecutive trading days Debt Instrument, Convertible, Threshold Consecutive Trading Days Threshold percentage of stock price trigger Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger Measurement period threshold trading days Debt Instrument Convertible Measurement Period Threshold Trading Days Debt Instrument Convertible Measurement Period Threshold Trading Days Measurement period threshold consecutive trading days Debt Instrument Convertible Measurement Period Threshold Consecutive Trading Days Debt Instrument Convertible Measurement Period Threshold Consecutive Trading Days Ratio of trading price per 1000 principle amount Debt Instrument, Convertible, Ratio Of Trading Price Per 1000 Principle Amount Debt Instrument, Convertible, Ratio Of Trading Price Per 1000 Principle Amount Redemption price Debt Instrument, Redemption Price, Percentage Percentage of debt held by individual owner Debt Instrument, Convertible, Percentage Of Debt Held By Individual Owner Debt Instrument, Convertible, Percentage Of Debt Held By Individual Owner Long-term Debt Debt issuance costs Debt Issuance Costs, Gross Indexed shares (in shares) Option Indexed to Issuer's Equity, Indexed Shares Purchase of convertible note hedges Number of securities called by warrants (in shares) Class of Warrant or Right, Number of Securities Called by Warrants or Rights Percentage above common stock price to conversion price of convertible debt when instrument is eligible for conversion Percentage Above Common Stock Price To Conversion Price Of Convertible Debt When Instrument Is Eligible For Conversion Percentage Above Common Stock Price To Conversion Price Of Convertible Debt When Instrument Is Eligible For Conversion Effective percentage above common stock price to conversion price of convertible debt, as effected by convertible note hedge and warrant transactions Effective Percentage Above Common Stock Price To Conversion Price Of Convertible Debt, As Effected By Convertible Note Hedge And Warrant Transactions Effective Percentage Above Common Stock Price To Conversion Price Of Convertible Debt, As Effected By Convertible Note Hedge And Warrant Transactions. Convertible note hedges exercised (in shares) Convertible Note Hedges Exercised Convertible note hedges exercised Number of warrants exercised (in shares) Class Of Warrant Or Right, Number Of Warrants Exercised Class of Warrant or Right, Number Of Warrants Exercised Debt instrument, percentage points added to the reference rate Debt Instrument, Basis Spread on Variable Rate Commitment fee Line of Credit Facility, Commitment Fee Percentage Line of credit facility, fair value of amount outstanding Line of Credit Facility, Fair Value of Amount Outstanding Payable period after termination Credit Facility, Payable Period After Termination Credit Facility, Payable Period After Termination Advance rate for securitization Advance Rate For Securitization Advance Rate For Securitization Cash flows between transferee and transferor proceeds Cash flows between transferee and transferor, funding of restricted cash 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. Capitalized salaries and related costs Capitalized Salaries and Related Costs Capitalized Salaries and Related Costs Resort management and other services Resort Management and Other Services Revenue [Member] Resort Management and Other Services Revenue [Member] Financings Financings [Member] Financings [Member] Ancillary revenues Ancillary Revenues Revenues for ancillary goods and services rendered. Management fee revenues Management Fees, Base Revenue Fee revenues Fee Revenue Fee revenues for services rendered. Contractual financing term Financing Receivable Term Financing Receivable Term Financing Revenue payment commencement Payment Period Financing Financing revenue payment period commencement after closing. Interest income associated with vacation ownership notes receivable Interest On Notes Receivable Interest On Notes Receivable Investments, All Other Investments [Abstract] Carrying Values and Estimated Fair Values of Financial Assets and Liabilities Fair Value, by Balance Sheet Grouping [Table Text Block] Land Land Buildings and leasehold improvements Buildings and Improvements, Gross Furniture and equipment Fixtures and Equipment, Gross Information technology Information technology assets, Gross Information technology assets, Gross Construction in progress Construction in Progress, Gross Property, plant and equipment, gross Property, Plant and Equipment, Gross Accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Property, plant and equipment, net Property, Plant and Equipment, Net New Accounting Pronouncements or Change in Accounting Principle [Table] New Accounting Pronouncements or Change in Accounting Principle [Table] New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncements or Change in Accounting Principle [Line Items] Highly liquid investments maturity period Cash Equivalents, Maturity Period Cash Equivalents, Maturity Period Prospective Adoption of New Accounting Pronouncements [Axis] Prospective Adoption of New Accounting Pronouncements [Axis] Accounting Guidance [Domain] Accounting Guidance [Domain] Accounting Standards Update 2014-09 Accounting Standards Update 2014-09 [Member] Initial Application Period Cumulative Effect Transition [Axis] Initial Application Period Cumulative Effect Transition [Axis] Initial Application Period Cumulative Effect Transition [Domain] Initial Application Period Cumulative Effect Transition [Domain] Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Type of Adoption [Domain] Accounting Standards Update 2014-09 Pro Forma Pro Forma [Member] Administrative expenses Income (Loss) Before Provision for Income Taxes by Geographic Region Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Provision for Income Taxes Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Deferred Tax Assets and Liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Reconciliation of US Statutory Income Tax Rate to Effective Tax Rate Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Reconciliation of Revenue from Segments to Consolidated [Table] Reconciliation of Revenue from Segments to Consolidated [Table] Segment Reporting, Revenue Reconciling Item [Line Items] Segment Reporting, Revenue Reconciling Item [Line Items] TOTAL REVENUES Schedule of Compensation Cost for Share-based Payment Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block] Schedule of Unrecognized Compensation Cost Schedule of Unrecognized Compensation Cost, Nonvested Awards [Table Text Block] Additional Information on Outstanding RSUs Issued to Employees Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] Changes in Outstanding Marriott Vacations Worldwide SARs Issued to Both Marriott International and Marriott Vacations Worldwide Employees and Non-employee Directors Schedule of Share-based Compensation, Stock Appreciation Rights Award Activity [Table Text Block] 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] Common stock, shares outstanding Common Stock, Shares, Outstanding Share repurchase program, number of additional common stock authorized to be repurchased (in shares) Stock Repurchase Program Number Of Additional Shares Authorized To Be Repurchased Stock Repurchase Program Number Of Additional Shares Authorized To Be Repurchased Share repurchase program, number of additional common stock authorized to be repurchased (in shares) Stock Repurchase Program, Number of Shares Authorized to be Repurchased Stock repurchase program, remaining authorized repurchase amount (in shares) Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased Minimum rentals Operating Leases, Rent Expense, Minimum Rentals Additional rentals Operating Leases, Rent Expense, Contingent Rentals Operating Leases, Rent Expense, Net, Total Operating Leases, Rent Expense, Net Summary of Future Obligations Under Operating Leases Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Composition of Rental Expense Associated with Operating Leases Schedule of Rent Expense [Table Text Block] United States Income (Loss) from Continuing Operations before Income Taxes, Domestic Non-U.S. jurisdictions Income (Loss) from Continuing Operations before Income Taxes, Foreign Income Taxes [Table] Income Taxes [Table] Income Taxes [Table] Income Tax Authority [Axis] Income Tax Authority [Axis] Income Tax Authority [Domain] Income Tax Authority [Domain] Non-United States Subsidiaries Non-United States Subsidiaries [Member] Non-United States subsidiaries. Foreign Foreign Tax Authority [Member] Federal Domestic Tax Authority [Member] State State and Local Jurisdiction [Member] Income Taxes [Line Items] Income Taxes [Line Items] Income Taxes [Line Items] Decrease in income tax expense Tax Cuts And Jobs Act Of 2017 Incomplete Accounting Provisional Income Tax Expense (Benefit) Tax Cuts and Jobs Act of 2017 Incomplete Accounting Provisional Income Tax Expense (Benefit) Decrease net deferred tax liability Tax Cuts And Jobs Act Of 2017 Incomplete Accounting Change In Tax Rate Deferred Tax Liability Provisional Income Tax Benefit Tax Cuts and Jobs Act of 2017 Incomplete Accounting Change in Tax Rate Deferred Tax Liability Provisional Income Tax Benefit Income tax expense (benefit), excess tab benefits related to the vesting or exercise of employee share-based awards Excess Tax Benefits Related To The Vesting Or Exercise Of Employee Share Based Awards Included In Tax Benefit Provision Excess tab benefits related to the vesting or exercise of employee share-based awards included in tax benefit or provision Cumulative unremitted earnings Undistributed Earnings of Foreign Subsidiaries Change in valuation allowance Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount Excess tax benefits related to the vesting or exercise of employee share based awards not included In tax provision Excess Tax Benefits Related To The Vesting Or Exercise Of Employee Share Based Awards Not Included In Tax Provision Excess tab benefits related to the vesting or exercise of employee share-based awards that were not included in the income tax provision. Income tax holiday period Income Tax Holiday Period Income Tax Holiday Period Net operating loss carry forwards Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration Taxes paid Income Taxes Paid Number of RSUs Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Stock awards, grants in period (in shares) Stock awards, distributed in period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Stock awards, forfeited in period (in shares) Weighted Average Grant-Date Fair Value Per RSU Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Outstanding at beginning of year (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Granted (in usd per share) 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 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 Outstanding at year-end (in usd per share) Condensed Balance Sheet Statement [Table] Condensed Balance Sheet Statement [Table] Other assets Other Assets [Member] Condensed Balance Sheet Statements, Captions [Line Items] Condensed Balance Sheet Statements, Captions [Line Items] Period in which loan considered past due Past Due Period Past Due Period Period in which loan suspend accrual of interest Past Due Loan Suspend Accrual of Interest Period Past Due Loan Suspend Accrual of Interest Period 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 Notes receivable estimated average remaining default rates Notes Receivable, Estimated Average Default Rates Notes Receivable, Estimated Average Default Rates 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. 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 Deferred marketing and selling expenses, which are direct marketing and selling costs related either to an unclosed contract or a contract for which 100 percent of revenue has not yet been recognized Deferred Costs, Noncurrent Financing Receivables, Period Past Due [Axis] Financing Receivables, Period Past Due [Axis] Class of Financing Receivable, Type [Domain] Financing Receivables, Period Past Due [Domain] 31 – 90 days past due Financing Receivables, 31 To 90 Days Past Due [Member] Financing Receivables, 31 To 90 Days Past Due [Member] 91 – 150 days past due Financing Receivables, 91 To 150 Days Past Due [Member] Financing Receivables, 91 To 150 Days Past Due [Member] Greater than 150 days past due Financing Receivables, Greater than 150 Days Past Due [Member] Financing Receivables, Greater than 150 Days Past Due [Member] Total past due Financing Receivable, Recorded Investment, Past Due Current Financing Receivable, Recorded Investment, Current Total vacation ownership notes receivable Financing Receivable, Gross Computation of Basic Earnings Per Share Earnings Per Share, Basic [Abstract] Shares for basic earnings per share (in shares) Weighted Average Number of Shares Outstanding, Basic Computation of Diluted Earnings Per Share Earnings Per Share, Diluted [Abstract] Effect of dilutive shares outstanding Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract] 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. 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. Shares for diluted earnings per share (in shares) Weighted Average Number of Shares Outstanding, Diluted 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] Future Principal Payments, Net of Reserves, and Interest Rates of Vacation Ownership Notes Receivable Schedule of Financing Receivables, Minimum Payments [Table Text Block] 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. Notes Receivable Reserves Allowance for Credit Losses on Financing Receivables [Table Text Block] Recorded Investment in Non-accrual Notes Receivable that are 90 Days or More Past Due Schedule of Financing Receivables, Non Accrual Status [Table Text Block] Aging of Recorded Investment in Principal, Before Reserves, in Vacation Ownership Notes Receivable Past Due Financing Receivables [Table Text Block] FINANCIAL INSTRUMENTS Financial Instruments Disclosure [Text Block] Interest income Interest expense to investors Interest Expense, Related Party Segment Reporting Disclosure [Table] Segment Reporting Disclosure [Table] Segment Reporting Disclosure [Table] Non-US Non-US [Member] Segment Reporting Disclosure [Line Items] Segment Reporting Disclosure [Line Items] Segment Reporting Disclosure [Line Items] Number of points based programs Number Of Points Based Programs Number Of Points Based Programs Revenues, excluding cost reimbursements Revenues Excluding Reimbursed Costs Revenues Excluding Reimbursed Costs Property and equipment Statement of Stockholders' Equity [Abstract] Common Stock Common Stock [Member] Additional Paid-In Capital Additional Paid-in Capital [Member] Accumulated Other Comprehensive Income AOCI Attributable to Parent [Member] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Balance (in shares) Balance Stockholders' Equity Attributable to Parent Impact of adoption of ASU 2016-09 Cumulative Effect of New Accounting Principle in Period of Adoption OPENING BALANCE 2017 Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance Derivative instrument adjustment Amounts related to share-based compensation (in shares) Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures Amounts related to share-based compensation Adjustments to Additional Paid in Capital, Share-based Compensation and Exercise of Stock Options Adjustment to reclassification of Marriott International investment to Additional paid-in capital Adjustments to Additional Paid in Capital, Investment Amount of other increase (decrease) in additional paid in capital (APIC). Repurchase of common stock (in shares) Repurchase of common stock Dividends Dividends Equity component of convertible notes, net of issuance costs Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt Purchase of convertible note hedges Adjustments To Additional Paid In Capital, Convertible Note Hedges Adjustments To Additional Paid In Capital, Convertible Note Hedges Issuance of warrants Adjustments to Additional Paid in Capital, Warrant Issued Employee stock plan issuance (in shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans Employee stock plan issuance Stock Issued During Period, Value, Employee Stock Purchase Plan Ending Balance (in shares) Ending Balance Accounting Standards Update 2016-09 Accounting Standards Update 2016-09 [Member] Accounting Standards Update 2016-09, Forfeiture Rate Component Accounting Standards Update 2016-09, Forfeiture Rate Component [Member] Accounting Standards Update 2016-09, Forfeiture Rate Component [Member] Income tax expense (benefit) Impact of adoption of ASU 2016-09 QUARTERLY RESULTS (UNAUDITED) Quarterly Financial Information [Text Block] Debt Balances, Net of Unamortized Debt Issuance Costs Schedule of Debt [Table Text Block] Scheduled Future Principal Payments for Debt Schedule of Maturities of Long-term Debt [Table Text Block] Convertible Debt Convertible Debt [Table Text Block] INCOME TAXES Income Tax Disclosure [Text Block] Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Fair Value Estimate of Fair Value Measurement [Member] Senior Notes Senior Notes [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Total financial assets Instruments, Financial Assets Instruments, Financial Assets Debt, net Non-interest bearing note payable, net Total financial liabilities Instruments, Financial Liabilities Instruments, Financial Liabilities Inventory, Current [Table] Inventory, Current [Table] Estimated Future Foreclosures Foreclosed Collateral [Member] Foreclosed Collateral [Member] Inventory [Line Items] Inventory [Line Items] 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 Purchase obligation SUBSEQUENT EVENTS Subsequent Events [Text Block] U.S. statutory income tax rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent U.S. state income taxes, net of U.S. federal tax benefit Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent 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. Impact related to the Tax Cuts and Jobs Act Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent Excess tax benefits related to share-based compensation Effective Income Tax Rate Reconciliation Share Based Compensation Expense Tax Benefit Percent Effective Income Tax Rate Reconciliation Share Based Compensation Expense Tax Benefit Percent Foreign tax rate changes Effective Income Tax Rate Reconciliation Foreign Rate Change Percent Effective Income Tax Rate Reconciliation Foreign Rate Change Percent Non-U.S. income (loss) Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent Other items Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Change in valuation allowance Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Effective rate Effective Income Tax Rate Reconciliation, Percent ASSETS Assets [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Restricted cash (including $32,321 and $27,525 from VIEs, respectively) Accounts and contracts receivable, net (including $5,639 and $4,865 from VIEs, respectively) Vacation ownership notes receivable, net (including $815,331 and $717,543 from VIEs, respectively) Other (including $13,708 and $0 from VIEs, respectively) TOTAL ASSETS LIABILITIES AND EQUITY Liabilities and Equity [Abstract] Accounts payable Accounts Payable Advance deposits Customer Advances and Deposits Accrued liabilities (including $701 and $584 from VIEs, respectively) Deferred revenue Deferred Revenue Payroll and benefits liability Employee-related Liabilities Deferred compensation liability Deferred Compensation Liability, Current and Noncurrent Debt, net (including $845,131 and $738,362 from VIEs, respectively) Deferred taxes Deferred Tax Liabilities, Net TOTAL LIABILITIES Liabilities Contingencies and Commitments (Note 9) Commitments and Contingencies Preferred stock — $.01 par value; 2,000,000 shares authorized; none issued or outstanding Preferred Stock, Value, Issued Common stock — $.01 par value; 100,000,000 shares authorized; 36,861,843 and 36,633,868 shares issued, respectively Common Stock, Value, Issued Treasury stock — at cost; 10,400,547 and 9,643,562 shares, respectively Treasury Stock, Value Additional paid-in capital Additional Paid in Capital, Common Stock Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Retained earnings Retained Earnings (Accumulated Deficit) TOTAL EQUITY TOTAL LIABILITIES AND EQUITY Liabilities and Equity ADOPTION OF ASC 606 EFFECTIVE JANUARY 1, 2018 New Accounting Pronouncements and Changes in Accounting Principles [Text Block]