Debt - Additional Information (Detail) (USD $)	1 Months Ended		9 Months Ended				9 Months Ended				6 Months Ended	1 Months Ended	9 Months Ended			1 Months Ended								1 Months Ended			1 Months Ended	9 Months Ended					9 Months Ended			9 Months Ended
	Feb. 29, 2012	May 31, 2011	Sep. 30, 2012	Sep. 30, 2011	Jun. 30, 2012	Dec. 31, 2011	Sep. 30, 2012 B-1, B-2, B-3 and B-6 [Member]	Jun. 30, 2012 Non-interest bearing promissory note [Member]	Sep. 30, 2012 Maximum [Member]	Sep. 30, 2012 Minimum [Member]	Jun. 30, 2012 Caesars Entertainment Operating Company, Inc. [Member]	May 31, 2011 Revised Term Loans [Member]	Sep. 30, 2012 Senior Secured Term Loan Maturing on January 28, 2015 [Member]	Sep. 30, 2012 Original Revolver Commitments [Member]	Sep. 30, 2012 Revised Revolver Commitments [Member]	Apr. 30, 2012 CMBS Financing [Member]	Mar. 31, 2012 CMBS Financing [Member]	Jan. 31, 2012 CMBS Financing [Member]	Apr. 30, 2011 CMBS Financing [Member]	Mar. 31, 2011 CMBS Financing [Member]	Sep. 30, 2012 CMBS Financing [Member]	Sep. 30, 2012 Chester Downs Senior Secured Notes [Member]	Feb. 29, 2012 Chester Downs Senior Secured Notes [Member]	Aug. 31, 2012 Senior notes with maturity of 2020 [Member]	Feb. 29, 2012 Senior notes with maturity of 2020 [Member]	Sep. 30, 2012 Senior notes with maturity of 2020 [Member]	Aug. 31, 2012 Senior Notes [Member]	Sep. 30, 2012 Senior Notes [Member]	Sep. 30, 2012 Senior notes with maturity of 2020 one [Member]	Sep. 30, 2012 Unsecured Senior Debt 7.0% [Member]	Sep. 30, 2012 Senior Secured Financing [Member]	Sep. 30, 2012 Senior Secured Term Loan [Member]	Sep. 30, 2012 Senior Secured Term Loan Maturing on October 31, 2016 [Member]	Sep. 30, 2012 Senior Secured Term Loan Maturing on January 28, 2018 [Member]	Sep. 30, 2012 Senior Secured Revolving Credit Facility [Member]	Sep. 30, 2012 Senior Secured Revolving Credit Facility Maturing on January 28, 2014 [Member]	Sep. 30, 2012 Senior Secured Revolving Credit Facility Maturing on January 28, 2017 [Member]
Debt Instrument [Line Items]
Unamortized discounts			$ 2,708,800,000			$ 2,858,000,000
Current portion of long-term debt			797,300,000			40,400,000																							750,000,000	600,000
Senior secured notes issued by Chester Downs																					3.24%	9.25%	9.25%		8.50%	8.50%			9.00%	7.00%
Conversion of B-1, B-2 and B-3 term loans to B-5 term loans		799,400,000
Conversion of revolver commitments into Extended Term Loans		423,300,000	47,300,000
Extended date of maturity of B-5 term loans												Jan. 28, 2018
Convertible Debt, Noncurrent			2,731,400,000		123,500,000
Date of maturity													Jan. 28, 2015																				Oct. 31, 2016	Jan. 28, 2018		Jan. 28, 2014	Jan. 28, 2017
Credit facility convert into term loans			82,300,000
Repayment of B-1, B-2, B-3 and B-6 term loans							1,095,600,000
Original maturity revolver commitments with extended maturity			25,000,000
Maturity date of original revolver commitment														Jan. 28, 2014
Extended date of maturity of original maturity revolver commitments															Jan. 28, 2017
Termination of original maturity revolver commitments														6,300,000
Senior secured revolving credit facility maturing on January 28, 2017													1,985,700,000																		7,296,800,000	6,225,800,000	972,500,000	3,267,600,000	1,071,000,000	1,046,000,000	25,000,000
Required scheduled by Credit Facilities for quarterly payments			3,700,000
Line of Credit Facility, amount outstanding			95,500,000
Additional borrowing capacity available under revolving credit facility			975,500,000
Purchase of CMBS Loans																83,700,000	116,700,000	2,000,000	50,000,000	108,100,000
Face value of CEOC debt			23,467,300,000					28,500,000			5,900,000					50,200,000	70,800,000	1,000,000	35,000,000	73,500,000	4,829,100,000	330,000,000	330,000,000			1,250,000,000			750,000,000	600,000
Recognized gain net of deferred financing costs on CMBS Loans			79,500,000	47,900,000												32,700,000	44,800,000	1,000,000		33,200,000
Gain on CMBS Loans repurchase																			14,300,000
Repayment of existing term loan plus accrued interest and prepayment penalty	232,400,000
Aggregate principal amount of senior secured notes																								750,000,000	1,250,000,000
Repayments of lines of credit																											478,800,000	1,095,600,000	478,800,000
Purchase value of CEOC debt											3,200,000
Recognized gain net of deferred financing costs on CEOC debt											1,000,000
Leverage ratio for line of credit facility									4.75	1.00
Ratio excludes first priority senior secured notes			2,200,000,000
Ratio excludes aggregate principal amount			350,000,000
Leverage ratio for senior secured debt									4.02	1.00
Fixed charge coverage ratio									2.0	1.0
First priority senior secured debt last twelve months to EBITDA									4.5	1.0
Consolidated senior secured debt LTM to EBITDA									7.25	1.00
First priority senior secured debt									5.74	1.00
Consolidated senior secured debt									11.67	1.00
CEOC's earnings were insufficient to cover fixed charges			$ 570,700,000