Consolidating Financial Information of Guarantors and Issuers - Condensed Consolidating Balance Sheet (Detail) (USD $) In Millions, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2011	Dec. 31, 2010
Assets
Cash and cash equivalents	$ 1,189.4	$ 894.6	$ 1,139.2	$ 973.5
Restricted Cash	799.4	66.6
Assets held for sale	9.7	11.6
Other current assets	881.3	931.0
Property and equipment, net	16,588.6	17,069.9
Goodwill	3,100.8	3,360.4
Intangible assets other than goodwill	4,042.7	4,363.2
Investments in subsidiaries	109.8	94.2
Restricted cash	269.3	451.1
Assets held for sale	592.3	593.4
Other long-term assets	869.4	840.4
Total assets	28,342.9	28,515.6
Liabilities and Stockholders' Equity/(Deficit)
Interest payable	348.7	191.4
Current portion of long-term debt	797.3	40.4
Liabilities held for sale	8.2	10.1
Other current liabilities	1,471.1	1,360.9
Long-term debt	19,961.2	19,759.5
Deferred credits and other	892.1	901.8
Deferred income taxes	4,749.6	5,198.1
Total Caesars stockholders' equity/(deficit)	28,228.2	27,462.2
Total Caesars stockholders' equity/(deficit)	33.4	1,006.7
Non-controlling interests	81.3	46.7
Total equity/(deficit)	114.7	1,053.4	1,205.9	1,672.6
Total liabilities and Stockholder's equity/(deficit)	28,342.9	28,515.6
CEC (Parent Guarantor) [Member]
Assets
Cash and cash equivalents	19.3	3.9	113.3	136.0
Other current assets	29.8	15.7
Investments in subsidiaries		535.8
Intercompany receivables	660.1	469.0
Other long-term assets	0.6	5.0
Total assets	709.8	1,029.4
Liabilities and Stockholders' Equity/(Deficit)
Other current liabilities	33.9	22.7
Accumulated losses of subsidiaries in excess of investment	587.5
Intercompany payables	55.0
Total Caesars stockholders' equity/(deficit)	676.4	22.7
Total Caesars stockholders' equity/(deficit)	33.4	1,006.7
Total equity/(deficit)	33.4	1,006.7
Total liabilities and Stockholder's equity/(deficit)	709.8	1,029.4
Subsidiary Issuer [Member]
Assets
Cash and cash equivalents	430.0	16.6	306.9	61.0
Other current assets	339.7	322.4
Property and equipment, net	192.8	205.6
Intangible assets other than goodwill	4.4	4.9
Investments in subsidiaries	12,440.2	13,568.0
Intercompany receivables	1,088.3	1,102.8
Other long-term assets	317.4	324.9
Total assets	14,812.8	15,545.2
Liabilities and Stockholders' Equity/(Deficit)
Interest payable	326.3	174.0
Current portion of long-term debt	11.9	20.2
Other current liabilities	398.6	303.5
Long-term debt	14,733.7	14,446.3
Deferred credits and other	611.5	612.5
Deferred income taxes	376.6	647.7
Intercompany payables	714.4	420.2
Total Caesars stockholders' equity/(deficit)	17,173.0	16,624.4
Total Caesars stockholders' equity/(deficit)	(2,360.2)	(1,079.2)
Total equity/(deficit)	(2,360.2)	(1,079.2)
Total liabilities and Stockholder's equity/(deficit)	14,812.8	15,545.2
Subsidiary Guarantors of Parent and Subsidiary Guaranteed Debt [Member]
Assets
Cash and cash equivalents	289.8	372.5	256.4	344.7
Assets held for sale	9.7	11.6
Other current assets	680.0	672.1
Property and equipment, net	9,084.2	9,499.8
Goodwill	1,279.2	1,526.2
Intangible assets other than goodwill	3,259.4	3,524.2
Investments in subsidiaries	759.7	886.8
Intercompany receivables	585.9	586.0
Assets held for sale	592.3	593.4
Other long-term assets	178.2	187.1
Total assets	16,718.4	17,859.7
Liabilities and Stockholders' Equity/(Deficit)
Interest payable	1.7	0.8
Current portion of long-term debt	21.9	7.0
Liabilities held for sale	8.2	10.1
Other current liabilities	816.9	830.4
Long-term debt	52.5	69.8
Deferred credits and other	161.0	166.0
Deferred income taxes	2,427.3	2,558.8
Intercompany payables	871.7	871.7
Total Caesars stockholders' equity/(deficit)	4,361.2	4,514.6
Total Caesars stockholders' equity/(deficit)	12,357.2	13,345.1
Total equity/(deficit)	12,357.2	13,345.1
Total liabilities and Stockholder's equity/(deficit)	16,718.4	17,859.7
Subsidiary Non-Guarantors of Parent and Subsidiary Guaranteed Debt [Member]
Assets
Cash and cash equivalents	450.3	501.6	462.6	431.8
Restricted Cash	799.4
Other current assets	399.5	418.5
Property and equipment, net	7,311.6	7,364.5
Goodwill	1,821.6	1,834.2
Intangible assets other than goodwill	778.9	834.1
Investments in subsidiaries	899.7	882.9
Restricted cash	269.3	451.1
Intercompany receivables	153.6	98.7
Other long-term assets	373.2	323.4
Total assets	13,257.1	12,709.0
Liabilities and Stockholders' Equity/(Deficit)
Interest payable	20.7	16.6
Current portion of long-term debt	763.5	13.2
Other current liabilities	789.4	702.0
Long-term debt	6,074.8	6,100.7
Deferred credits and other	119.6	123.3
Deferred income taxes	1,945.7	1,991.6
Intercompany payables	846.8	964.6
Total Caesars stockholders' equity/(deficit)	10,560.5	9,912.0
Total Caesars stockholders' equity/(deficit)	2,615.3	2,750.3
Non-controlling interests	81.3	46.7
Total equity/(deficit)	2,696.6	2,797.0
Total liabilities and Stockholder's equity/(deficit)	13,257.1	12,709.0
Subsidiary Non-Guarantors of Parent-Only Guaranteed Debt [Member]
Assets
Cash and cash equivalents	740.1	874.1	719.0	776.5
Restricted Cash	799.4
Assets held for sale	9.7	11.6
Other current assets	1,079.5	1,090.6
Property and equipment, net	16,395.8	16,864.3
Goodwill	3,100.8	3,360.4
Intangible assets other than goodwill	4,038.3	4,358.3
Investments in subsidiaries	1,659.4	1,769.7
Restricted cash	269.3	451.1
Intercompany receivables	739.5	684.7
Assets held for sale	592.3	593.4
Other long-term assets	551.4	510.5
Total assets	29,975.5	30,568.7
Liabilities and Stockholders' Equity/(Deficit)
Interest payable	22.4	17.4
Current portion of long-term debt	785.4	20.2
Liabilities held for sale	8.2	10.1
Other current liabilities	1,606.3	1,532.4
Long-term debt	6,127.3	6,170.5
Deferred credits and other	280.6	289.3
Deferred income taxes	4,373.0	4,550.4
Intercompany payables	1,718.5	1,836.3
Total Caesars stockholders' equity/(deficit)	14,921.7	14,426.6
Total Caesars stockholders' equity/(deficit)	14,972.5	16,095.4
Non-controlling interests	81.3	46.7
Total equity/(deficit)	15,053.8	16,142.1
Total liabilities and Stockholder's equity/(deficit)	29,975.5	30,568.7
Consolidating/ Eliminating Adjustments [Member]
Assets
Other current assets	(567.7)	(497.7)
Investments in subsidiaries	(14,099.6)	(15,873.5)
Intercompany receivables	(2,487.9)	(2,256.5)
Total assets	(17,155.2)	(18,627.7)
Liabilities and Stockholders' Equity/(Deficit)
Other current liabilities	(567.7)	(497.7)
Long-term debt	(899.8)	(857.3)
Accumulated losses of subsidiaries in excess of investment	(587.5)
Intercompany payables	(2,487.9)	(2,256.5)
Total Caesars stockholders' equity/(deficit)	(4,542.9)	(3,611.5)
Total Caesars stockholders' equity/(deficit)	(12,612.3)	(15,016.2)
Total equity/(deficit)	(12,612.3)	(15,016.2)
Total liabilities and Stockholder's equity/(deficit)	$ (17,155.2)	$ (18,627.7)