Stock-Based Employee Compensation - Summary of Stock Option Activity for Company's Equity Award Plans (Detail) (USD $)	1 Months Ended	11 Months Ended	12 Months Ended
	Dec. 31, 2012	Dec. 10, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercised, Shares			(2,387,831)	(2,549,131)	(1,667,636)
LVSC 2004 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding, Weighted Average Remaining Contractual Life (Years)			5 years 7 days
Exercisable, Weighted Average Remaining Contractual Life (Years)			4 years 1 month 13 days
Outstanding, Aggregate Intrinsic Value	$ 171,619,765		$ 171,619,765
Exercisable, Aggregate Intrinsic Value	109,549,967		109,549,967
Outstanding as of the beginning of the period, Shares	10,506,158	12,046,742	12,046,742
Granted, Shares	3,677	532,922	537,000	263,000	4,497,000
Exercised, Shares	(679,875)	(1,707,956)
Forfeited, Shares	(39,500)	(365,550)
Outstanding as of the end of the period, Shares	9,790,460	10,506,158	9,790,460	12,046,742
Exercisable as of December 31, 2012	6,896,006		6,896,006
Outstanding at beginning, Weighted Average Exercise Price	$ 40.78	$ 37.38	$ 37.38
Granted, Weighted Average Exercise Price	$ 44.54	$ 55.28
Exercised, Weighted Average Exercise Price	$ 9.78	$ 16.40
Forfeited, Weighted Average Exercise Price	$ 29.00	$ 64.00
Outstanding at end, Weighted Average Exercise Price	$ 40.16	$ 40.78	$ 40.16	$ 37.38
Exercisable as of December 31, 2012	$ 45.09		$ 45.09
SCL Equity Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding, Weighted Average Remaining Contractual Life (Years)			8 years 4 months 28 days
Exercisable, Weighted Average Remaining Contractual Life (Years)			7 years 9 months 22 days
Outstanding, Aggregate Intrinsic Value	39,367,728		39,367,728
Exercisable, Aggregate Intrinsic Value	$ 6,582,618		$ 6,582,618
Outstanding as of the beginning of the period, Shares		23,816,666	23,816,666
Granted, Shares			7,761,800	9,987,000	26,189,000
Exercised, Shares			(6,130,975)
Forfeited, Shares			(2,123,851)
Outstanding as of the end of the period, Shares	23,323,640		23,323,640	23,816,666
Exercisable as of December 31, 2012	2,834,172		2,834,172
Outstanding at beginning, Weighted Average Exercise Price		$ 2.07	$ 2.07
Granted, Weighted Average Exercise Price			$ 3.74
Exercised, Weighted Average Exercise Price			$ 1.88
Forfeited, Weighted Average Exercise Price			$ 2.23
Outstanding at end, Weighted Average Exercise Price	$ 2.66		$ 2.66	$ 2.07
Exercisable as of December 31, 2012	$ 2.03		$ 2.03