Stock-Based Employee Compensation - Summary of Stock Option Activity (Detail) (Stock Option [Member], USD $)	1 Months Ended	10 Months Ended	12 Months Ended
	Feb. 14, 2014	Dec. 31, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Feb. 15, 2014
LVSC 2004 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Granted, shares			2,359,455	288,000	537,000
Exercised, shares			(1,955,108)
Forfeited, shares			(347,369)
Outstanding, ending balance, shares		6,964,169	6,964,169	6,907,191
Exercisable as of the end of the period, shares		3,975,245	3,975,245
Granted, weighted average exercise price			$ 56.74
Exercised, weighted average exercise price			$ 23.00
Forfeited, weighted average exercise price			$ 65.95
Outstanding, ending balance, weighted average exercise price		$ 58.25	$ 58.25	$ 49.18
Exercisable as of the end of the period, weighted average exercise price		$ 59.89	$ 59.89
Outstanding, weighted average remaining contractual life (in years)			5 years 10 months 17 days
Exercisable, weighted average remaining contractual life (in years)			3 years 2 months 15 days
Outstanding, aggregate intrinsic value		$ 51,865,574	$ 51,865,574
Exercisable, aggregate intrinsic value		44,022,494	44,022,494
SCL Equity Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Granted, shares		11,660,500	11,660,500	4,537,000	7,762,000
Exercised, shares	(112,875)	(4,394,825)
Forfeited, shares	(244,700)	(1,265,450)
Outstanding, ending balance, shares	17,249,471	23,249,696	23,249,696	17,607,046		17,249,471	[1]
Exercisable as of the end of the period, shares		5,139,498	5,139,498
Granted, weighted average exercise price		$ 7.43
Exercised, weighted average exercise price	$ 2.07	$ 2.36
Forfeited, weighted average exercise price	$ 7.02	$ 4.83
Outstanding, ending balance, weighted average exercise price	$ 3.45	$ 5.50	$ 5.50	$ 3.49		$ 3.35	[1]
Exercisable as of the end of the period, weighted average exercise price		$ 2.90	$ 2.90
Outstanding, weighted average remaining contractual life (in years)			8 years 3 months 10 days
Exercisable, weighted average remaining contractual life (in years)			6 years 8 months 0 days
Outstanding, aggregate intrinsic value		17,316,424	17,316,424
Exercisable, aggregate intrinsic value		$ 10,692,221	$ 10,692,221

[1] As a result of SCL declaring a special dividend on January 24, 2014, the exercise price of all SCL stock options outstanding on February 14, 2014, was reduced by $0.10 per share. This adjustment was the result of an antidilution provision in the SCL Equity Plan and did not result in any additional compensation expense.