XML 50 R32.htm IDEA: XBRL DOCUMENT
v3.20.4

Basis of Presentation and Significant Accounting Policies (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2020
Accounting Policies [Abstract] |
Schedule of Estimated Useful Lives of Assets | Purchases of property and equipment are stated at cost, and when placed into service, are depreciated over the estimated useful lives of the assets using the straight-line method as follows:
| Estimated Useful Life in Years
Buildings and improvements | 10 - 45
Land improvements | 10 - 45
Furniture, fixtures and equipment | 3 - 20
Leasehold interest in land | 25
Airplanes | 20

X
- References No definition available. + Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule of estimated useful lives of assets [Table Text Block]. + References No definition available. + Details
Name: | wynn_ScheduleOfEstimatedUsefulLivesOfAssetsTableTableTextBlock
Namespace Prefix: | wynn_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration