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Stock-Based Employee Compensation - Summary of Unvested Restricted Stock and Stock Units (Details) - $ / shares
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
LVSC 2004 Plan [Member] | Restricted Stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Other than Options, Outstanding [Roll Forward]      
Unvested, beginning balance (in shares) 97,053    
Granted (in shares) 37,270 61,546 49,438
Vested (in shares) (60,042)    
Forfeited (in shares) 0    
Unvested, ending balance (in shares) 74,281 97,053  
Unvested, weighted average grant date fair value, beginning balance (in usd per share) $ 51.11    
Granted, weighted average grant date fair value (in usd per share) 58.51 $ 42.50 $ 59.57
Vested, weighted average grant date fair value (in usd per share) 55.64    
Forfeited, weighted average grant date fair value (in usd per share) 0.00    
Unvested, weighted average grant date fair value, ending balance (in usd per share) $ 51.17 $ 51.11  
LVSC 2004 Plan [Member] | Restricted Stock Units (RSUs) [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Other than Options, Outstanding [Roll Forward]      
Unvested, beginning balance (in shares) 73,150    
Granted (in shares) 0    
Vested (in shares) (64,150)    
Forfeited (in shares) (4,000)    
Unvested, ending balance (in shares) 5,000 73,150  
Unvested, weighted average grant date fair value, beginning balance (in usd per share) $ 61.59    
Granted, weighted average grant date fair value (in usd per share) 0.00    
Vested, weighted average grant date fair value (in usd per share) 60.77    
Forfeited, weighted average grant date fair value (in usd per share) 60.24    
Unvested, weighted average grant date fair value, ending balance (in usd per share) $ 73.20 $ 61.59  
SCL Equity Plan [Member] | Restricted Stock Units (RSUs) [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Other than Options, Outstanding [Roll Forward]      
Unvested, beginning balance (in shares) 852,000    
Granted (in shares) 0 0 118,800
Vested (in shares) 0    
Modified from equity-settled (to cash-settled) (in shares) (852,000)    
Unvested, ending balance (in shares) 0 852,000  
Unvested, weighted average grant date fair value, beginning balance (in usd per share) $ 7.51    
Granted, weighted average grant date fair value (in usd per share) 0.00 $ 0.00 $ 4.90
Vested, weighted average grant date fair value (in usd per share) 0.00    
Equity-settled modified to cash-settled, weighted average grant date fair value (in usd per share) 7.51    
Unvested, weighted average grant date fair value, ending balance (in usd per share) $ 0.00 $ 7.51  
SCL Equity Plan [Member] | Cash-Settled Restricted Stock Units [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Other than Options, Outstanding [Roll Forward]      
Unvested, beginning balance (in shares) 235,636    
Granted (in shares) 0    
Vested (in shares) (235,636)    
Modified from equity-settled (to cash-settled) (in shares) 852,000    
Unvested, ending balance (in shares) 852,000 235,636  
Unvested, weighted average grant date fair value, beginning balance (in usd per share) $ 7.13    
Granted, weighted average grant date fair value (in usd per share) 0.00    
Vested, weighted average grant date fair value (in usd per share) 7.13    
Equity-settled modified to cash-settled, weighted average grant date fair value (in usd per share) 7.51    
Unvested, weighted average grant date fair value, ending balance (in usd per share) $ 7.51 $ 7.13