Casino Promotional Allowances (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Promotional Allowances	$ 137	$ 140
Cost of Promotional Allowances	68	67
Food and beverage
Promotional Allowances	70	73
Cost of Promotional Allowances	43	44
Rooms
Promotional Allowances	59	60
Cost of Promotional Allowances	20	20
Other
Promotional Allowances	8	7
Cost of Promotional Allowances	$ 5	$ 3

This element represents the estimated retail value of accommodations, food and beverage, and other services furnished to guests without charge.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 924
-SubTopic 605
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=68080496&loc=d3e51325-107943

Name:	us-gaap_PromotionalAllowances
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration