Debt - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended							1 Months Ended														0 Months Ended				2 Months Ended				3 Months Ended	1 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012	Feb. 28, 2013 Revolving Credit Facility [Member]	Feb. 28, 2013 Line of Credit [Member]	Mar. 31, 2013 Maximum [Member]	Mar. 31, 2013 Minimum [Member]	Feb. 28, 2013 Senior Notes With Maturity of 2020 (Three) [Member]	Mar. 31, 2013 Revolving Credit Facility with Maturity of 2017 [Member]		Mar. 31, 2013 Revolving credit facility with maturity of 2014 [Member]		Mar. 31, 2013 Credit Facilities Term Loans B5-B6 [Member]	Mar. 31, 2013 Credit Facilities Term Loan B4 [Member]		Mar. 31, 2013 Senior Secured Term Loan [Member]	Mar. 31, 2013 Senior Secured Financing [Member]	Mar. 31, 2013 Credit Facilities Term Loans B1-B3 [Member]		Mar. 31, 2013 Unsecured Senior Debt 7.0% [Member]		Feb. 20, 2013 Senior Notes with Maturity of 2020 Two [Member]	Dec. 31, 2012 Senior Notes with Maturity of 2020 Two [Member]	Mar. 31, 2013 Unsecured Senior Debt 5.375% [Member]		Feb. 28, 2013 Credit Facilities Term Loans B6 [Member]	Mar. 31, 2013 Credit Facilities Term Loans B6 [Member]		Mar. 31, 2013 Bill's Gamblin' Hall & Saloon Senior Secured Revolving Credit Facility [Member]	Mar. 31, 2013 Senior Notes [Member]	Feb. 28, 2013 CMBS Financing [Member]	Mar. 31, 2013 CMBS Financing [Member]
Debt Instrument [Line Items]
Unamortized discounts	$ 2,670.8		$ 2,691.0
Current Maturities of Debt [Abstract]
Debt Instrument, Face Value	23,947.9							1,500.0	0	[1]	0	[1]		967.5	[1]			29.1	[1]	0.6	[1]		750.0	125.2	[1]		2,431.9	[1]	185.0			4,664.1
Debt Instrument, Interest Rate								9.00%	0.00%	[1]	0.00%	[1]		9.50%	[1]					7.00%	[1]		9.00%	5.375%	[1]		5.45%	[1]	11.00%			3.70%
Credit Agreement [Abstract]
Debt Instrument, Decrease, Repayments																										133.9
Debt Instrument, Increase, Additional Borrowings																										133.9
Extended facility commitments				75.0	650.0
Senior secured revolving credit facility									31.1		109.4		3,423.8			4,420.4	4,560.9												140.5
Required scheduled by Credit Facilities for quarterly payments	2.5
Line Of Credit Outstanding Amount Committed To Letters Of Credit																	86.8
Line of Credit Facility, Remaining Borrowing Capacity																	53.7
Use of net proceeds from offering of senior secured notes								1,433.3														350.0
Loss on extinguishment of debt	(36.7)	45.8																												29.4
Payments of loan maturity extension fees	23.3	0																													23.3
Restrictive Covenants and Other Matters [Abstract]
Leverage ratio for line of credit facility						4.75	1
Ratio excludes first priority senior secured notes	3,700.0
Ratio excludes aggregate principal amount	350.0
Leverage ratio for senior secured debt						3.82	1.0
Fixed charge coverage ratio						2	1
First priority senior secured debt last twelve months to EBITDA						4.5	1
Consolidated senior secured debt LTM to EBITDA						7.25	1
First priority senior secured debt						6.69	1
Consolidated senior secured debt						12.95	1
CEOC's earnings were insufficient to cover fixed charges	$ 504.6

[1] Guaranteed by Caesars Entertainment.