Leases Leases - Additional Information (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2019		Mar. 31, 2018
Lessee, Finance Lease, Term of Contract		4 years
Sale Leaseback Transaction, Lease Terms		We lease certain real property assets from VICI (each a “Lease Agreement,” and, collectively, the “Lease Agreements”): (i) for Caesars Palace Las Vegas, (ii) for a portfolio of properties at various locations throughout the United States, (iii) for Harrah’s Joliet Hotel & Casino and (iv) for Harrah’s Las Vegas. The Lease Agreements provide for annual fixed rent (subject to escalation) of $773 million during the initial 15-year term, then rent consisting of both base rent and variable percentage rent elements, and have four five-year renewal options, subject to certain restrictions. The Lease Agreements include escalation provisions beginning in year two of the initial term and continuing through the renewal terms. The Lease Agreements 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.
Revenue from Contract with Customer, Including Assessed Tax		$ 2,115		$ 1,972	[1]
Lessor, Operating Lease, Term of Contract		5 years
Occupancy [Member]
Revenue from Contract with Customer, Including Assessed Tax		$ 386	[2]	367
Food and Beverage [Member]
Revenue from Contract with Customer, Including Assessed Tax		398	[2]	$ 383
Lease revenue	[2]	$ 15
Minimum [Member]
Lessee, Operating Lease, Term of Contract-Low End		1 year
Lessor, Operating Lease, Term of Contract		1 year
Maximum [Member]
Lessee, Operating Lease, Term of Contract-Low End		73 years
Lessor, Operating Lease, Term of Contract		86 years

[1] (5) Certain prior year amounts have been reclassified to conform to the current year presentation

[2] (1) As a result of the adoption of ASC 842, as of January 1, 2019, revenue generated from the lease components of lodging arrangements and conventions are no longer considered contract revenue under ASC 606, Revenue from Contracts with Customers. A portion of these balances relate to lease revenues under ASC 842. See Note 7 for further details.