Property and Equipment (Details) - USD ($) $ in Millions	Jun. 30, 2019	Jan. 01, 2019	[1]	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 19,372			$ 19,083
Less: accumulated depreciation	(3,480)			(3,038)
Total property and equipment, net	15,892	$ 15,949		16,045	[1]
Land [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	4,771			4,871
Buildings, riverboats, and leasehold and land improvements
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	12,352			12,243
Furniture, fixtures, and equipment
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	1,672			1,563
Construction in progress
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 577			$ 406

[1] Non-operating land assets previously considered as failed sale-leaseback financing obligations were determined to qualify for sale-leaseback accounting under ASC 842 and are now recognized as operating lease liabilities with corresponding ROU assets.