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Financing Activities Plan Name [Axis] Plan Name [Axis] Assets: Assets, Fair Value Disclosure [Abstract] Long-term debt total Long-term Debt Long-term Debt Ceiling rate Derivative, Cap Interest Rate Quoted Market Prices in Active Markets (Level 1) Fair Value, Inputs, Level 1 [Member] Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Impairment Goodwill impairment Goodwill, Impairment Loss Other liabilities related to intangible assets Intangible Assets, Other Liabilities Incurred Intangible Assets, Other Liabilities Incurred Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Disallowed interest carryforwards not subject to expiration Deferred Tax Asset, Disallowed Interest Expense Carryforwards, Not Subject to Expiration Deferred Tax Asset, Disallowed Interest Expense Carryforwards, Not Subject to Expiration Number of hotel towers Number Of Hotel Towers Number of Hotel Towers Entity Small Business Entity Small Business 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Current Thereafter Long-Term Debt, Maturity, after Year Five Amortization thereafter through 2037 Annual Amortization, 2029 Through 2037 [Member] Annual Amortization, 2029 Through 2037 [Member] Exercise of stock options Stock Issued During Period, Value, Stock Options Exercised Pre-Open Costs Pre-Open Costs [Member] Pre-Open Costs [Member] Organization Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Assets and Capital Expenditures by Segment Reconciliation of Assets from Segment to Consolidated [Table Text Block] Retirement Plan Name [Axis] Retirement Plan Name [Axis] Uncertain tax positions, noncurrent Liability for Uncertainty in Income Taxes, Noncurrent Wynn/CA Plaza Property Owner, LLC And Wynn/CA Property Owner, LLC (The Borrowers) Wynn/CA Plaza Property Owner, LLC And Wynn/CA Property Owner, LLC [Member] Wynn/CA Plaza Property Owner, LLC And Wynn/CA Property Owner, LLC [Member] Schedule of Future Minimum Rentals to be Received Under 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[Member] Current liabilities: Liabilities, Current [Abstract] Beginning balance (in shares) Ending balance (in shares) Shares, Outstanding Numerator: Net Income (Loss) Available Common Stockholders, Basic And Diluted [Abstract] Net Income (Loss) Available Common Stockholders, Basic And Diluted [Abstract] Minimum number of consecutive days Debt Instrument, Covenant, Required Redemption, Minimum Consecutive Period Debt Instrument, Covenant, Required Redemption, Minimum Consecutive Period Receivables, net Loans, Notes, Trade and Other Receivables, Excluding Allowance for Credit Losses [Text Block] Accounting Policies [Abstract] Accounting Policies [Abstract] Financing costs included in accounts payable and other liabilities Debt Issuance Costs Incurred During Noncash or Partial Noncash Transaction Change in advanced room deposits and ticket sales Change in advanced room deposits and ticket sales Change in advanced room deposits and ticket sales Outstanding as of December 31, 2021 Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Derivative Instrument [Axis] Derivative Instrument [Axis] Purchase of intangible and other assets Payments For Intangible Assets And Other Assets Net cash inflow or (outflow) from intangible assets and/or other assets not otherwise defined in the taxonomy. Retirement Plan Sponsor Location [Axis] Retirement Plan Sponsor Location [Axis] Ground lease payments due after 2023 Lessee, Operating Lease, Liability, Payments, Due After Year Three Lessee, Operating Lease, Liability, Payments, Due After Year Three Wynn Macau Revolver, due 2022 Senior Revolving Credit Facility, Due 2022 [Member] Senior Revolving Credit Facility, Due 2022 [Member] Total lease liabilities Liability associated with ground lease Operating Lease, Liability U.S. Federal Current Federal Tax Expense (Benefit) Document Transition Report Document Transition Report Common stock, par value $0.01; 400,000,000 shares authorized; 131,449,806 and 123,482,836 shares issued; 115,714,943 and 107,888,336 shares outstanding, respectively Common Stock, Value, Issued Weighted-average discount rate - Finance leases Finance Lease, Weighted Average Discount Rate, Percent Unvested awards compensation costs period of recognition Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Nonvested, beginning of period Nonvested, end of period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Wynn Macau Wynn Resorts (Macau) [Member] Wynn Resorts (Macau) [Member] Leases Lessee, Operating Leases [Text Block] Weighted Average Remaining Contractual Term Share Based Compensation Arrangement By Share Based Payment Award Options Weighted Average Remaining Contractual Term [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Options, Weighted Average Remaining Contractual Term [Abstract] Vesting period Defined Contribution Plan, Employer Matching Contribution, Vesting Period Defined Contribution Plan, Employer Matching Contribution, Vesting Period Business Combination Business Combination Disclosure [Text Block] ICFR Auditor Attestation Flag ICFR Auditor Attestation Flag Valuation Assumptions Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Assets Lease, Assets, Lesse [Abstract] Lease, Assets, Lesse [Abstract] Ownership [Axis] Ownership [Axis] Foreign Deferred Foreign Income Tax Expense (Benefit) Legal Entity [Axis] Legal Entity [Axis] WRL Omnibus Plan Wynn Resorts Limited 2014 Omnibus Incentive Plan [Member] Omnibus Plan Class of Stock [Axis] Class of Stock [Axis] Total rental income Operating Leases, Income Statement, Lease Revenue Reconciliation of Unrecognized Tax Benefits Summary of Income Tax Contingencies [Table Text Block] Subsidiary or Equity Method Investee, Sale of Stock by Subsidiary or Equity Investee [Table] Subsidiary or Equity Method Investee, Sale of Stock by Subsidiary or Equity Investee [Table] Foreign loss carryforwards Foreign Loss Carryforwards [Member] Foreign Loss Carryforwards Income Tax Authority [Axis] Income Tax Authority [Axis] Proceeds Sale of Stock, Consideration Received on Transaction Retail Retail [Member] Capitalized Interest Interest Capitalization, Policy [Policy Text Block] Thereafter Finance Lease, Liability, to be Paid, after Year Five Prepaid expenses and other Prepaid Expense and Other Assets, Current Entity [Domain] Entity [Domain] During Financial Covenant Relief Period During Financial Covenant Relief Period [Member] During Financial Covenant Relief Period Stock-based compensation Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost Unrecognized tax benefit increase resulting in tax settlements Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit Betbull Acquisition Betbull Transaction [Member] Betbull Transaction Consolidation Items [Domain] Consolidation Items [Domain] Equity [Abstract] Equity [Abstract] Fair Value, Hierarchy [Axis] Fair Value Hierarchy and NAV [Axis] Comprehensive Income Comprehensive Income, Policy [Policy Text Block] Property and equipment Deferred Tax Assets, Property, Plant and Equipment Variable Rate [Axis] Variable Rate [Axis] Segment Information Segment Reporting Disclosure [Text Block] Weighted-average remaining lease term - Finance leases Finance Lease, Weighted Average Remaining Lease Term Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Document Fiscal Year Focus Document Fiscal Year Focus Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Abstract] Variable Rate [Domain] Variable Rate [Domain] Additional Paid-in Capital Additional Paid-in Capital [Member] Dividend paid (per share) Common Stock, Dividends, Per Share, Cash Paid Cash and Cash Equivalents [Abstract] Cash and Cash Equivalents [Abstract] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Pre-Opening Expenses Start-up Activities, Cost Policy [Policy Text Block] Other Other Nonoperating Income (Expense) Rooms Rooms [Member] Rooms [Member] Commitments and Contingencies [Table] Commitments And Contingencies [Table] Commitments and Contingencies [Table] WLV 5 1/4% Senior Notes, due 2027 Five and One Over Four Percentage Senior Notes, Due May 15, 2027 [Member] Five and One Over Four Percentage Senior Notes, Due May 15, 2027 Business Combinations [Abstract] Maximum Maximum [Member] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Share-based Payment Arrangement [Abstract] Casino outstanding chips and front money deposits Casino outstanding chips and front money deposits Casino outstanding chips and front money deposits Receivables, net Increase (Decrease) in Receivables Award Type [Axis] Award Type [Axis] Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Minimum rental income Operating Leases, Income Statement, Minimum Lease Revenue Schedule of Operating Lease Maturity Analysis Lessee, Operating Lease, Liability, Maturity [Table Text Block] Total Wynn Resorts, Limited stockholders' deficit Stockholders' Equity Attributable to Parent City Area Code City Area Code Accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities WM Cayman II Revolver, due 2025 WM Cayman II Revolver, due 2025 [Member] WM Cayman II Revolver, due 2025 Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Gaming taxes payable Gaming Taxes Payable Current Carrying amount as of the balance sheet date for taxes payable (due within one year or within one normal operating cycle, if longer) based on gross gaming revenue in the jurisdictions in operation, subject to applicable jurisdictional adjustments. Loyalty program liabilities Loyalty programs Loyalty programs Schedule Of Finite And Indefinite Lived Intangible Assets Schedule Of Finite And Indefinite Lived Intangible Assets [Line Items] Schedule Of Finite And Indefinite Lived Intangible Assets [Line Items] Repurchase of common stock Payments for Repurchase of Common Stock Property, Plant and Equipment, Useful Life Estimated useful life of property and equipment Property, Plant and Equipment, Useful Life Food and Beverage Food and Beverage [Member] Equity, Class of Treasury Stock Equity, Class of Treasury Stock [Line Items] Land and improvements Land Long-term operating lease liabilities Operating leases Long-term lease liabilities Operating Lease, Liability, Noncurrent Total undiscounted cash flows Finance Lease, Liability, Payment, Due Total Current Income Tax Expense (Benefit) Debt instrument, aggregate principal amount Debt Instrument, Face Amount Tax benefit from compensation expense Share-based Payment Arrangement, Expense, 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the measurement of lease liabilities: Cash Flow, Lessee [Abstract] Cash Flow, Lessee [Abstract] 2024 Finance Lease, Liability, to be Paid, Year Three Company's share of dividend Proceeds from Dividends Received 2025 Finance Lease, Liability, to be Paid, Year Four Related Party Transaction [Axis] Related Party Transaction [Axis] Minimum employee contribution percentage Defined Contribution Plan, Minimum Annual Contributions Per Employee, Percent Defined Contribution Plan, Minimum Annual Contributions Per Employee, Percent Provision for income taxes Income tax benefit (provision), total Income Tax Expense (Benefit) Other Commitments [Domain] Other Commitments [Domain] Entity Tax Identification Number Entity Tax Identification Number WRF 7 3/4% Senior Notes, due 2025 Seven And Three Over Four Percentage WRF Senior Notes Due 2025 [Member] Seven And Three Over Four Percentage WRF Senior Notes Due 2025 WML 5 5/8% Senior Notes, due 2028 Five and Five Over Eight Percentage Wynn Macau Limited Senior Notes Due Two Thousand Twenty Eight [Member] Five and Five Over Eight Percentage Wynn Macau Limited Senior Notes Due Two Thousand Twenty Eight Document Fiscal Period Focus Document Fiscal Period Focus Total current assets Assets, Current Total undiscounted cash flows Lessee, Operating Lease, Liability, to be Paid Receivables Accounts Receivable [Member] Forfeited Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Inventories, prepaid expenses and other Increase Decrease In Inventories Prepaid Expenses And Other Current Assets The net change during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities, the net change during the reporting period in the amount of outstanding money paid in advance for goods or services that bring economic benefits for future periods and the net change 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