Quarterly Results of Operations (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended																12 Months Ended
	Dec. 31, 2012		Sep. 30, 2012		Jun. 30, 2012		Mar. 31, 2012		Dec. 31, 2011		Sep. 30, 2011		Jun. 30, 2011		Mar. 31, 2011		Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Selected Quarterly Financial Information [Abstract]
Net revenues	$ 2,016.8	[1],[2]	$ 2,197.4	[3],[4]	$ 2,165.0	[3],[5]	$ 2,207.5	[6],[7]	$ 2,108.2	[1],[2]	$ 2,188.9	[3],[4]	$ 2,160.9	[3],[5]	$ 2,115.3	[6],[7]	$ 8,586.7	$ 8,573.3	$ 8,553.2
Income/(loss) from operations	(343.6)	[1],[2]	(217.6)	[3],[4]	187.7	[3],[5]	60.1	[6],[7]	198.8	[1],[2]	183.8	[3],[4]	235.7	[3],[5]	198.0	[6],[7]	(313.4)	816.3	483.1
Net Loss	(465.9)	[1],[2]	(503.4)	[3],[4]	(241.8)	[3],[5]	(281.1)	[6],[7]	(195.4)	[1],[2]	(173.4)	[3],[4]	(153.1)	[3],[5]	(144.8)	[6],[7]	(1,492.2)	(666.7)	(823.3)
Net loss attributable to Ceasars Entertainment Corporation	(469.7)	[1],[2]	(505.5)	[3],[4]	(241.7)	[3],[5]	(280.6)	[6],[7]	(220.6)	[1],[2]	(164.0)	[3],[4]	(155.5)	[3],[5]	(147.5)	[6],[7]	(1,497.5)	(687.6)	(831.1)
Basic and diluted loss per share	$ (3.75)	[1],[2]	$ (4.03)	[3],[4]	$ (1.93)	[3],[5]	$ (2.24)	[6],[7]	$ (1.76)	[1],[2],[8]	$ (1.31)	[3],[4],[8]	$ (1.24)	[3],[5],[8]	$ (1.18)	[6],[7],[8]	$ (11.95)	$ (5.50)	$ (8.37)
Recasted Financial Information [Abstract]
Net revenues as reported			2,198.4		2,165.7		2,271.9		2,172.4		2,189.7		2,161.7		2,179.0
Less net revenues attributable to discontinued operations			(1.0)		(0.7)		(64.4)		(64.2)		(0.8)		(0.8)		(63.7)
Net revenues	2,016.8	[1],[2]	2,197.4	[3],[4]	2,165.0	[3],[5]	2,207.5	[6],[7]	2,108.2	[1],[2]	2,188.9	[3],[4]	2,160.9	[3],[5]	2,115.3	[6],[7]	8,586.7	8,573.3	8,553.2
Income from operations as reported			(220.6)		81.8		75.5		211.6		179.8		231.6		213.5
Less income from operations attributable to discontinued operations			3.0		105.9		(15.4)		(12.8)		4.0		4.1		(15.5)		(59.4)	59.2	49.9
(Loss)/income from operations	$ (343.6)	[1],[2]	$ (217.6)	[3],[4]	$ 187.7	[3],[5]	$ 60.1	[6],[7]	$ 198.8	[1],[2]	$ 183.8	[3],[4]	$ 235.7	[3],[5]	$ 198.0	[6],[7]	$ (313.4)	$ 816.3	$ 483.1

[1] Amounts presented for the fourth quarter of 2011 have been recast to give effect to the Harrah's St. Louis casino disposition and the held for sale status of the subsidiaries that hold the Company's land concession in Macau as further discussed in Note 3, "Acquisitions, Investments, Dispositions and Divestitures." The table below recasts the amounts as originally presented in our Note 24, "Quarterly Results of Operations (Unaudited)" included in Item 8 of our 2011 Form 10-K.Recast for discontinued operationsFourth Quarter(In millions)2011Net revenues as reported$2,172.4Less net revenues attributable to discontinued operations(64.2)Net revenues as recasted$2,108.2Income from operations as reported$211.6Less income from operations attributable to discontinued operations(12.8)Income from operations as recasted$198.8

[2] During the fourth quarter of 2012 the Company recorded impairments of $448.2 million. During the fourth quarter of 2011, the Company recorded impairments of $5.7 million

[3] Amounts presented for the second and third quarters of 2012 and 2011 have been recast to give effect to the held for sale status of the subsidiaries that hold the Company's land concession in Macau as further discussed in Note 3, "Acquisitions, Investments, Dispositions and Divestitures." The table below recasts amounts as originally presented in our Consolidated Condensed Statements of Comprehensive Loss for the respective periods included in our Quarterly Report on Form 10-Q for the Quarterly Period Ended June 30, 2012 or our Quarterly Report on Form 10-Q for the Quarterly Period Ended September 30, 2012, as appropriate.Recast for discontinued operationsSecond Quarter Third Quarter(In millions) 2012 (a) 2011 2012 2011Net revenues as reported$2,165.7 $2,161.7 $2,198.4 $2,189.7Less net revenues attributable to discontinued operations(0.7) (0.8) (1.0) (0.8)Net revenues as recasted$2,165.0 $2,160.9 $2,197.4 $2,188.9Income/(loss) from operations as reported (a)$81.8 $231.6 $(220.6) $179.8Less loss from operations attributable to discontinued operations (a)105.9 4.1 3.0 4.0Income/(loss) from operations as recasted$187.7 $235.7 $(217.6) $183.8(a) The amounts shown for the second quarter of 2012 include an impairment of $101.0 million related to the Company's land concession in Macau.

[4] During the third quarter of 2012, the Company recorded impairments of $419.0 million. During the third quarter of 2011, the Company recorded impairments of $27.1 million.

[5] During the second quarter of 2012, the Company recorded impairments of $33.0 million. There were no impairments recorded in the second quarter of 2011.

[6] During the first quarter of 2012, the Company recorded impairments of $167.5 million. There were no impairments recorded in the first quarter of 2011.

[7] Amounts presented for the first quarter of 2012 and 2011 have been recast to give effect to the Harrah's St. Louis casino disposition and the held for sale status of the subsidiaries that hold the Company's land concession in Macau as further discussed in Note 3, "Acquisitions, Investments, Dispositions and Divestitures." The table below recasts amounts as originally presented in our Consolidated Condensed Statements of Comprehensive Loss for the respective periods included in our Quarterly Report on Form 10-Q for the Quarterly Period Ended March 31, 2012.Recast for discontinued operationsFirst Quarter(In millions)2012 2011Net revenues as reported$2,271.9 $2,179.0Less net revenues attributable to discontinued operations(64.4) (63.7)Net revenues as recasted$2,207.5 $2,115.3Income from operations as reported$75.5 $213.5Less income from operations attributable to discontinued operations(15.4) (15.5)Income from operations as recasted$60.1 $198.0

[8] Because loss per share amounts are calculated using the weighted average number of common and dilutive common equivalent shares outstanding during each quarter, the sum of the per share amounts for the four quarters may not equal the total loss per share amounts for the year.