Organization and Basis of Presentation (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended			12 Months Ended
	Mar. 31, 2014 business_segments Country Casinos States		Mar. 31, 2013	Dec. 31, 2013	Dec. 31, 2012
Organization [Abstract]
Number of casinos operated or managed	51
Number of states in U.S where company operates	13
Number of countries in which company operates	5
Reportable Segments	1
Liquidity Considerations [Abstract]
Debt Instrument, Face Amount	$ 23,583.7
Contractual Obligation	1,981.6
Contractual Obligation, Due in Second Year	3,254.6
Long-term Debt, Maturities, Repayments of Principal in Year Two	1,210.7
Long term debt interest payment year two	2,043.9
Stockholders' Equity Attributable to Parent	(3,502.2)			(3,122.0)
Cash and cash equivalents	2,483.4		2,095.4	2,771.2	1,757.5
Cash flows from operating activities	(93.8)		(47.3)	109.4
Senior Debt Excluded From Debt Covenant	3,700.0
Proceeds from Issuance of Long-term Debt	0		1,589.5
Variable Interest Entity, Primary Beneficiary [Member]
Liquidity Considerations [Abstract]
Cash and cash equivalents	972.6			976.9
Caesars Entertainment Operating Company [Member]
Liquidity Considerations [Abstract]
Debt Instrument, Face Amount	18,142.8	[1]
Amount Of Consolidated Debts Of Subsidiaries Excluded From Computation Of Leverage Ratio	350.0
Unrestricted Cash Excluded From Debt Covenant	2,937.3
Leverage ratio for senior secured debt	3.73
Caesars Entertainment Operating Company [Member] | Maximum [Member]
Liquidity Considerations [Abstract]
Leverage Ratio For Line Of Credit Facility	4.75
Caesars Entertainment Operating Company [Member] | Medium-term Notes [Member]
Liquidity Considerations [Abstract]
Debt Instrument, Face Amount	4,410.1	[2]
Revolving Credit Facility, Maximum Borrowing Capacity	4,516.2
Caesars Entertainment Operating Company [Member] | Senior Secured Revolving Facility [Member] | Medium-term Notes [Member]
Liquidity Considerations [Abstract]
Revolving Credit Facility, Maximum Borrowing Capacity	106.1
Revolving Credit Facility, Remaining Borrowing Capacity	9.8
Caesars Entertainment Resort Properties [Member]
Liquidity Considerations [Abstract]
Debt Instrument, Face Amount	4,677.5
Revolving Credit Facility, Remaining Borrowing Capacity	269.5
Leverage Ratio For Line Of Credit Facility	5.44
Caesars Entertainment Resort Properties [Member] | Maximum [Member]
Liquidity Considerations [Abstract]
Leverage Ratio For Line Of Credit Facility	8.0
Caesars Growth Partners, LLC [Member]
Liquidity Considerations [Abstract]
Debt Instrument, Face Amount	761.3	[3]
Caesars Growth Partners, LLC [Member] | Subsequent Event [Member]
Liquidity Considerations [Abstract]
Sales Price Of Subsidiary	2,000.0
Caesars Growth Partners, LLC [Member] | First Closing of Property Transaction [Member]
Liquidity Considerations [Abstract]
Sales Price Of Subsidiary	1,340.0
Proceeds from Issuance of Long-term Debt	700.0
Caesars Growth Partners, LLC [Member] | Medium-term Notes [Member]
Liquidity Considerations [Abstract]
Debt Instrument, Face Amount	225.0
Fixed Maturities [Member]
Liquidity Considerations [Abstract]
Contractual Obligation	187.7
Long Term Debt Interest - Rest of Current Year [Member]
Liquidity Considerations [Abstract]
Long term debt interest payment current year	$ 1,793.9
United States [Member]
Organization [Abstract]
Number of casinos operated or managed	39
International [Member]
Organization [Abstract]
Number of casinos operated or managed	12

[1] face value of debt issued by CEOC is held by other consolidated entities, substantially all of which is held by CGP LLC. Accordingly, such debt is not considered outstanding in the above presentation.

[2] Guaranteed by Caesars Entertainment.

[3] As of March 31, 2014 and December 31, 2013, under the CGP LLC structure, CIE has $39.8 million drawn under a revolver arrangement with Caesars Entertainment. Accordingly, such debt is eliminated in consolidation.