Property and Equipment - Schedule of Property and Equipment (Details) - USD ($) $ in Millions	Sep. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 18,463		$ 19,083
Less: accumulated depreciation	(3,475)		(3,038)
Total property and equipment, net	14,988	$ 15,949	16,045
Land
Property, Plant and Equipment [Line Items]
Total property and equipment	4,217		4,871
Buildings, riverboats, and leasehold and land improvements
Property, Plant and Equipment [Line Items]
Total property and equipment	11,916		12,243
Furniture, fixtures, and equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	1,724		1,563
Construction in progress
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 606		$ 406