Stock-Based Employee Compensation - Stock-Based Compensation Activity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation expense	$ 9,342	$ 11,597	$ 36,533	$ 37,780
Compensation cost capitalized as part of property and equipment	(72)	144	253	1,259
Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation expense	$ 5,010	$ 6,014	$ 20,302	$ 19,364
Stock Option [Member] \| LVSC 2004 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted	0	4	435	63
Stock options granted, weighted average grant date fair value	$ 0.00	$ 23.06	$ 12.04	$ 32.02
Stock Option [Member] \| SCL Equity Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted	0	1,258	2,744	11,447
Stock options granted, weighted average grant date fair value	$ 0.00	$ 2.72	$ 0.95	$ 3.43
Restricted Stock And Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation expense	$ 4,332	$ 5,583	$ 16,231	$ 18,416
Restricted Stock [Member] \| LVSC 2004 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock and stock units granted	10	0	49	31
Restricted stock and stock units granted, weighted average grant date fair value	$ 76.72	$ 0.00	$ 59.57	$ 75.46
Restricted Stock Units (RSUs) [Member] \| LVSC 2004 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock and stock units granted	0	0	0	6
Restricted stock and stock units granted, weighted average grant date fair value	$ 0	$ 0.00	$ 0	$ 73.68
Restricted Stock Units (RSUs) [Member] \| SCL Equity Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock and stock units granted	0	0	119	189
Restricted stock and stock units granted, weighted average grant date fair value	$ 0	$ 0	$ 4.90	$ 7.37

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 14.F)

-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

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-Name Accounting Standards Codification

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-SubTopic 10

-Section 50

-Paragraph 1

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-Publisher FASB

-Name Accounting Standards Codification

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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

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Represents the compensation cost capitalized during the period arising from equity-based compensation arrangements (for example, shares of stock, units, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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-Topic 718

-SubTopic 10

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-Paragraph 2

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Gross number of share options (or share units) granted during the period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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