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Cover - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Feb. 18, 2026
Jun. 30, 2025
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2025    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 000-50028    
Entity Registrant Name WYNN RESORTS, LIMITED    
Entity Incorporation, State or Country Code NV    
Entity Tax Identification Number 46-0484987    
Entity Address, Address Line One 3131 Las Vegas Boulevard South    
Entity Address, City or Town Las Vegas    
Entity Address, State or Province NV    
Entity Address, Postal Zip Code 89109    
City Area Code 702    
Local Phone Number 770-7555    
Title of 12(b) Security Common Stock, par value $0.01 per share    
Trading Symbol WYNN    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 9,660
Entity Common Stock, Shares Outstanding   104,283,291  
Documents Incorporated by Reference
Portions of the registrant's definitive Proxy Statement for its 2026 Annual Meeting of Shareholders to be filed not later than 120 days after the end of the fiscal year covered by this report are incorporated by reference into Part III of this Form 10-K.
    
Amendment Flag false    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY    
Entity Central Index Key 0001174922