Contractual Commitments Contractual Commitments (Details) - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Other Commitments [Line Items]
Self Insurance Reserve	$ 192	$ 179
Deferred compensation liability	40	40
Trust for Benefit of Employees [Member]
Other Commitments [Line Items]
Assets Held-in-trust	62	62
Caesars Entertainment Operating Company [Member] | Escrow for Benefit of Employees [Member]
Other Commitments [Line Items]
Deferred compensation liability	33	32
Assets Held-in-trust	59	$ 57
Health Insurance Product Line [Member]
Other Commitments [Line Items]
Self Insurance Reserve	$ 3