Debt (Details Textual) (USD $) In Millions, unless otherwise specified	1 Months Ended				3 Months Ended		6 Months Ended			6 Months Ended			6 Months Ended		1 Months Ended	6 Months Ended					6 Months Ended				6 Months Ended			1 Months Ended				6 Months Ended						1 Months Ended
	May 31, 2012	Mar. 31, 2012	Feb. 29, 2012	May 31, 2011	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011	Jun. 30, 2012 Caesars Entertainment Operating Company, Inc. [Member]	Jun. 30, 2012 Maximum [Member]	Jun. 30, 2012 Minimum [Member]	Jun. 30, 2012 B-1, B-2, B-3 and B-6 [Member]	Jun. 30, 2012 Non Interest Bearing Promissory Note [Member]	May 31, 2011 Revised Term Loans [Member]	Jun. 30, 2012 Original Term Loans [Member]	Jun. 30, 2012 Original revolver commitments [Member]	Jun. 30, 2012 Revised revolver commitments [Member]	Jun. 30, 2012 Senior Secured Financing [Member]	Jun. 30, 2012 Senior Secured Term Loan [Member]	Jun. 30, 2012 Senior Secured Term Loan Maturing On January 28, 2015 [Member]	Jun. 30, 2012 Senior Secured Term Loan Maturing On October 31, 2016 [Member]	Jun. 30, 2012 Senior Secured Term Loan Maturing On January 28, 2018 [Member]	Jun. 30, 2012 Senior Secured Revolving Credit Facility [Member]	Jun. 30, 2012 Senior Secured Revolving Credit Facility Maturing On January 28, 2014 [Member]	Jun. 30, 2012 Senior Secured Revolving Credit Facility Maturing On January 28, 2017 [Member]	Jun. 30, 2012 Senior Notes [Member]	Apr. 30, 2012 CMBS Loan [Member]	Jan. 31, 2012 CMBS Loan [Member]	Apr. 30, 2011 CMBS Loan [Member]	Mar. 31, 2011 CMBS Loan [Member]	Jun. 30, 2012 CMBS Loan [Member]	Mar. 31, 2012 CMBS Loan [Member]	Jun. 30, 2012 CMBS Loan [Member] Minimum [Member]	Jun. 30, 2012 Chester Downs Senior Secured Notes [Member]	Feb. 29, 2012 Chester Downs Senior Secured Notes [Member]	Jun. 30, 2012 Chester Downs Senior Secured Notes [Member] Minimum [Member]	Feb. 29, 2012 Senior notes with maturity of 2020 [Member]	Jun. 30, 2012 Senior notes with maturity of 2020 [Member]	Jun. 30, 2012 Senior notes with maturity of 2020 [Member] Minimum [Member]
Debt (Textual) [Abstract]
Unamortized discounts					$ 2,763.8		$ 2,763.8		$ 2,858.0
Conversion of B-1, B-2 and B-3 term loans to B-5 term loans				799.4
Conversion of revolver commitments into Extended Term Loans	38.0			423.3
Convertible Debt, Noncurrent	123.5				2,731.4		2,731.4
Original maturity revolver commitments with extended maturity							25.0
Required scheduled by Credit Facilities for quarterly payments							3.8
Line of Credit Facility, Amount Outstanding					97.9		97.9
Additional borrowing capacity available under revolving credit facility					982.3		982.3
Ratio excludes first priority senior secured notes					2,200.0		2,200.0
Ratio excludes aggregate principal amount							350.0
CEOC's earnings were insufficient to cover fixed charges							614.8
Repayment of existing term loan plus accrued interest and prepayment penalty			232.4
Credit facility convert into term loan		82.3
Conversion of revolver commitments into Extended Term Loans		6.3
Debt (Additional Textual) [Abstract]
Extended date of maturity of B-5 term loans															Jan. 28, 2018
Maturity date of original revolver commitment																	Jan. 28, 2014
Repayment of B-1, B-2, B-3 and B-6 term loans													1,095.6
Termination of original maturity revolver commitments																	6.3
Purchase of CMBS Loans																												83.7	2.0	50.0	108.1	116.7
Leverage ratio for line of credit facility											4.75	1.0
Leverage ratio for senior secured debt											4.30	1.0
Fixed charge coverage ratio											2.0	1.0
First priority senior secured debt last twelve month to EBITDA											4.5	1.0
Consolidated senior secured debt LTM to EBITDA											7.25	1.0
First priority senior secured debt											6.05	1.0
Consolidated senior secured debt											12.02	1.0
Recognized gain net of deferred financing costs on CMBS Loans					33.7	14.7	79.5	47.9																				32.7	1.0		33.2	44.8
Gain on CMBS Loans repurchase																														14.3
Face value of CMBS Loans							9.0	23.5
Extended date of maturity of original maturity revolver commitments																		Jan. 28, 2017
Date of maturity																					Jan. 28, 2015	Oct. 31, 2016	Jan. 28, 2018		Jan. 28, 2014	Jan. 28, 2017
Date of Maturity of B-1, B-2 and B-3 term loans																Jan. 28, 2015
Senior secured revolving credit facility maturing on January 28, 2017																			7,300.5	6,220.3	1,987.0	975.0	3,258.3	1,080.2	1,055.2	25.0
Senior secured notes issued by Chester Downs																																		3.24%		9.25%	9.25%	8.50%		8.50%
Repayments of Lines of Credit																											1,095.6
Aggregate Principal Amount of Senior Secured Notes																																						1,250.0
Face value of CEOC Debt					22,707.4		22,707.4			5.9				28.5														50.2	1.0	35.0	73.5	4,829.1	70.8		330.0	330.0			1,250.0
Purchase value of CEOC Debt										3.2
Recognized gain net of deferred financing costs on CEOC Debt										$ 1.0