Basis of Presentation & Consolidation Basis of Presentation & Consolidation (Details) (USD $)	3 Months Ended											12 Months Ended
	Dec. 31, 2014		Sep. 30, 2014	Jun. 30, 2014		Mar. 31, 2014	Dec. 31, 2013		Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012	Dec. 31, 2011	May 31, 2014	Apr. 30, 2014
Initial public offering																$ 17,000,000
Contributed Capital, Principal of Notes												1,100,000,000
Stock Issued During Period, Shares, New Issues												7,000,000		11,000,000
Net revenues	2,131,000,000		2,212,000,000	2,140,000,000		2,033,000,000	2,004,000,000		2,087,000,000	2,069,000,000	2,060,000,000	8,516,000,000		8,220,000,000		8,186,000,000
Net Income (Loss) Attributable to Parent	(1,023,000,000)		(908,000,000)	(466,000,000)		(386,000,000)	(1,757,000,000)		(761,000,000)	(212,000,000)	(218,000,000)	(2,783,000,000)		(2,948,000,000)		(1,508,000,000)
Long-term Debt, Gross	25,602,000,000											25,602,000,000
Construction and Development Costs												223,000,000
Long-term Debt	23,213,000,000						21,115,000,000					23,213,000,000		21,115,000,000
Bond distribution to noncontrolling interest owners (2)												(160,000,000)	[1]
Unamortized discounts	2,400,000,000						2,500,000,000					2,400,000,000		2,500,000,000
Noncontrolling Interest [Member]
Bond distribution to noncontrolling interest owners (2)												(160,000,000)	[1]
Unamortized discounts	89,000,000											89,000,000
Caesars Entertainment Operating Company [Member]
Corporate Expense Allocation												70.00%
Caesars Entertainment Resort Properties [Member]
Corporate Expense Allocation												24.60%
Proceeds from Contributed Capital												43,000,000
Caesars Growth Properties Holdings, LLC [Member]
Corporate Expense Allocation												5.40%
Proceeds from Contributed Capital												23,000,000
Caesars Interactive Entertainment [Member] | Unsecured Debt [Member]
Long-term Debt, Gross	40,000,000											40,000,000
Long-term Debt	40,000,000											40,000,000				42,000,000	126,000,000
Caesars Entertainment Operating Company [Member]
Long-term Debt, Gross	18,371,000,000											18,371,000,000
Debt Instrument, Face Amount	5,500,000,000										1,500,000,000	5,500,000,000
Long-term Debt	16,177,000,000						15,783,000,000					16,177,000,000		15,783,000,000
Unamortized discounts	2,200,000,000											2,200,000,000
Caesars Entertainment Operating Company [Member] | Unsecured Debt [Member]
Long-term Debt, Gross	30,000,000		238,000,000									30,000,000
Long-term Debt	30,000,000						45,000,000					30,000,000		45,000,000
Caesars Entertainment Operating Company [Member] | Unsecured Debt [Member] | Unsecured Senior Debt Six Point Five Percent [Member]
Long-term Debt, Gross	297,000,000											297,000,000
Long-term Debt	270,000,000						213,000,000					270,000,000		213,000,000
Dividends Paid to Parent Company by Consolidated Subsidiaries												187,000,000
Payments of Distributions to Affiliates												138,000,000
Caesars Entertainment Operating Company [Member] | Unsecured Debt [Member] | Unsecured Senior Debt Five Point Seven Five Percent [Member]
Long-term Debt, Gross	233,000,000											233,000,000
Long-term Debt	193,000,000						115,000,000					193,000,000		115,000,000
Dividends Paid to Parent Company by Consolidated Subsidiaries												206,000,000
Payments of Distributions to Affiliates												151,000,000
Caesars Entertainment Operating Company [Member] | CGP LLC Property Transaction [Member]
Sales Price Of Subsidiary				2,000,000,000
Caesars Acquisition Company [Member]
Unamortized discounts	129,000,000											129,000,000
Caesars Acquisition Company [Member] | Unsecured Debt [Member]
Debt Instrument, Face Amount	289,000,000											289,000,000
Caesars Acquisition Company [Member] | Common Class A [Member]
Initial public offering												1,200,000,000
Stock Issued During Period, Shares, New Issues												135,771,882
Caesars Acquisition Company [Member] | Common Class A [Member] | Affiliates of Apollo Global Management, LLC and TPG Capital, LP [Member]
Initial public offering												458,000,000
Shares Issued, Price Per Share	$ 8.64											$ 8.64
Caesars Growth Partners, LLC [Member]
Payments to Acquire Equity Method Investments												360,000,000
Percent of Management Fee to be Purchased												50.00%
Restoration of Subscription Rights, Value	21,000,000											21,000,000
Noncontrolling Interest in Variable Interest Entity	1,100,000,000											1,100,000,000
Long-term Debt, Gross	2,386,000,000	[2]										2,386,000,000	[2]
Line of Credit Facility, Maximum Borrowing Capacity	(150,000,000)											(150,000,000)
Business Combination, Contingent Consideration, Asset	225,000,000											225,000,000
Long-term Debt	2,326,000,000	[2]					721,000,000	[2]				2,326,000,000	[2]	721,000,000	[2]
Caesars Growth Partners, LLC [Member] | Medium-term Notes [Member]
Long-term Debt, Gross	330,000,000											330,000,000
Long-term Debt	321,000,000						215,000,000					321,000,000		215,000,000
Caesars Growth Partners, LLC [Member] | Secured Debt [Member]
Long-term Debt, Gross	1,169,000,000	[3]										1,169,000,000	[3]
Debt Instrument, Face Amount																		1,175,000,000
Long-term Debt	1,138,000,000	[3]					0	[3]				1,138,000,000	[3]	0	[3]
Caesars Growth Partners, LLC [Member] | Subordinated Debt [Member] | Twenty Twenty-two Note at Nine point Three Seven Five [Member]
Long-term Debt, Gross	675,000,000	[3]										675,000,000	[3]						675,000,000
Long-term Debt	661,000,000	[3]					0	[3]				661,000,000	[3]	0	[3]
Caesars Growth Partners, LLC [Member] | Unsecured Debt [Member]
Long-term Debt, Gross	9,000,000	[4]										9,000,000	[4]
Long-term Debt	8,000,000	[4]					50,000,000	[4]				8,000,000	[4]	50,000,000	[4]
Caesars Growth Partners, LLC [Member] | Variable Interest Entity, Primary Beneficiary [Member]
Net revenues												1,600,000,000		142,000,000
Net Income (Loss) Attributable to Parent												405,000,000		4,000,000
Caesars Growth Partners, LLC [Member] | Contingently Issuable Membership Units [Member]
Contingent earnout liability	168,000,000											168,000,000
Caesars Growth Partners, LLC [Member] | Contingently Issuable Membership Units [Member] | Variable Interest Entity, Primary Beneficiary [Member]
Contingent Consideration Classified as Equity, Fair Value Disclosure	347,000,000											347,000,000
Cromwell Credit Facility [Member] | Caesars Entertainment Operating Company [Member] | Medium-term Notes [Member]
Long-term Debt, Gross	0	[5]										0	[5]
Long-term Debt	0	[5]					180,000,000	[5]				0	[5]	180,000,000	[5]
Cromwell Credit Facility [Member] | Caesars Growth Partners, LLC [Member] | Medium-term Notes [Member]
Long-term Debt, Gross	185,000,000	[5]		185,000,000	[5]							185,000,000	[5]
Long-term Debt	$ 180,000,000	[5]					$ 0	[5]				$ 180,000,000	[5]	$ 0	[5]

[1] (2) See Note 2, “Basis of Presentation and Principles of Consolidation,” for a description of CGP LLC’s distribution of CEOC notes.

[2] As of December 31, 2014, under the CGP LLC structure, CIE has $40 million drawn under a revolver arrangement with Caesars Entertainment. Accordingly, such debt is not considered outstanding in the above presentation.

[3] Guaranteed by an indirect subsidiary of Caesars Growth Partners, LLC and certain of its wholly owned subsidiaries.

[4] The December 31, 2013 value of this debt was reclassified. The property that secured this debt was sold to CGP LLC in May 2014.

[5] The property that secured this debt was sold to CGP LLC in May 2014. The debt was formerly “Bill’s Credit Facility.”