Leases - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Operating Leased Assets [Line Items]
Operating Leases, Rent Expense, Net	$ 118	$ 84	$ 74
Collaborative Arrangement, Rights and Obligations	Each lease agreement provides for fixed rent (subject to escalation) during an initial term, then rent consisting of both base rent and variable percentage rent elements, and has a 15-year initial term and four five-year renewal options, subject to certain restrictions on extension applicable to certain of the leased properties. The CEOC LLC Lease Agreements and the Harrah’s Las Vegas lease provide for annual fixed rent of $695 million and $87 million, respectively. Each of the leases includes escalation provisions beginning in year two of the initial term and continuing through the renewal terms. The leases also include provisions for contingent rental payments calculated, in part, based on increases or decreases of net revenue of the underlying lease properties, commencing in year eight of the initial term and continuing through the renewal terms.
Minimum [Member]
Operating Leased Assets [Line Items]
Lessee, Operating Lease, Term of Contract	1 year
Maximum [Member]
Operating Leased Assets [Line Items]
Lessee, Operating Lease, Term of Contract	79 years