| Document and Entity Information | Jan. 26, 2021 |
| Cover [Abstract] | |
| Document type | 8-K |
| Document period end date | Jan. 26, 2021 |
| Entity registrant name | LAS VEGAS SANDS CORP. |
| Entity incorporation, state or country code | NV |
| Entity file number | 001-32373 |
| Entity tax identification number | 27-0099920 |
| Entity address, address line one | 3355 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 | 414-1000 |
| Written communications | false |
| Soliciting material | false |
| Pre-commencement tender offer | false |
| Pre-commencement issuer tender offer | false |
| Title of 12(b) security | Common Stock ($0.001 par value) |
| Trading symbol | LVS |
| Security exchange name | NYSE |
| Entity emerging growth company | false |
| Entity central index key | 0001300514 |
| Amendment flag | false |
