Basis of Presentation & Consolidation (Details) - USD ($) $ in Millions		3 Months Ended								12 Months Ended
	Jan. 15, 2015	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Variable Interest Entity [Line Items]
Net revenues		$ 1,119	$ 1,141	$ 1,141	$ 1,253	$ 2,131	$ 2,212	$ 2,140	$ 2,033	$ 4,654	$ 8,516	$ 8,220
Net income/(loss) attributable to company		(76)	$ (791)	$ 15	$ 6,772	(1,023)	$ (908)	$ (466)	$ (386)	5,920	(2,783)	$ (2,948)
Caesars Growth Partners
Variable Interest Entity [Line Items]
Noncontrolling Interest in Variable Interest Entity		1,200								1,200
Caesars Entertainment Operating Company [Member]
Variable Interest Entity [Line Items]
Net revenues	$ 158
Net income/(loss) attributable to company	$ 76
Caesars Entertainment Operating Company [Member] | Caesars Enterprise Services [Member]
Variable Interest Entity [Line Items]
Noncontrolling Interest in Variable Interest Entity		23								23
Variable Interest Entity, Primary Beneficiary [Member] | Caesars Growth Partners
Variable Interest Entity [Line Items]
Net revenues										2,300	1,600
Net income/(loss) attributable to company										18	405
Variable Interest Entity, Primary Beneficiary [Member] | Contingently Issuable Membership Units [Member] | Caesars Growth Partners
Variable Interest Entity [Line Items]
Contingent Consideration Classified as Equity, Fair Value Disclosure		228				$ 347				228	$ 347
Maximum [Member] | Variable Interest Entity, Primary Beneficiary [Member] | Contingently Issuable Membership Units [Member] | Caesars Growth Partners
Variable Interest Entity [Line Items]
Business Combination, Contingent Consideration, Asset		$ 225								$ 225