Litigation, Contractual Commitments, and Contingencies Litigation - Exit Costs Accrual Composition (Details) - USD ($) $ in Millions		Jun. 30, 2018	Dec. 31, 2017
Disposal Group, Including Discontinued Operation, Other Liabilities		$ 93	$ 101
Horseshoe Council Bluffs [Member] | Caesars Entertainment Operating Company [Member] | Discontinued Operations, Disposed of by Means Other than Sale, Abandonment [Member]
Disposal Group, Including Discontinued Operation, Other Liabilities		32	40
Harrah's Gulf Coast construction project [Member] | Caesars Entertainment Operating Company [Member] | Discontinued Operations, Disposed of by Means Other than Sale, Abandonment [Member]
Disposal Group, Including Discontinued Operation, Other Liabilities	[1]	43	43
Disposal Group Other [Member] | Caesars Entertainment Operating Company [Member] | Discontinued Operations, Disposed of by Means Other than Sale, Abandonment [Member]
Disposal Group, Including Discontinued Operation, Other Liabilities	[2]	$ 18	$ 18

[1] (1) Associated with the abandonment of a construction project near the Mississippi Gulf Coast.

[2] (2) Properties include Alea Leeds, Golden Nugget and Southend.