Property and Equipment - Schedule of Property and Equipment (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 18,796	$ 18,708
Less: accumulated depreciation	(3,960)	(3,732)
Total property and equipment, net	14,836	14,976
Land
Property, Plant and Equipment [Line Items]
Total property and equipment	4,211	4,218
Buildings, riverboats, and leasehold and land improvements
Property, Plant and Equipment [Line Items]
Total property and equipment	12,454	12,022
Furniture, fixtures, and equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	1,804	1,762
Construction in progress
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 327	$ 706