Condensed Consolidating Financial Information of Guarantors and Issuers - Condensed Consolidating Balance Sheet (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010	Dec. 31, 2009
Assets
Cash and cash equivalents	$ 1,757.5		$ 891.2		$ 971.1	$ 902.1
Restricted cash	833.6		66.6
Receivables, less allowance for doubtful accounts	580.5		488.4
Deferred income taxes	114.9		170.5
Prepayments and other current assets	150.0		160.4
Inventories	52.0		44.6
Intercompany receivables	0		0
Assets held for sale	5.1		15.5
Total current assets	3,493.6		1,837.2
Property and equipment, net of accumulated depreciation	15,701.7		16,485.6
Goodwill	3,160.3		3,360.4		3,316.5
Intangible assets other than goodwill	3,985.7		4,363.2
Investments in subsidiaries	0		0
Investments in and advances to non-consolidated affiliates	100.4		94.2
Restricted cash	364.6		451.1
Deferred charges and other	720.6		746.2
Intercompany receivables	0		0
Assets held for sale	471.2		1,177.7
Total assets	27,998.1		28,515.6
Liabilities and Stockholders’ (Deficit)/Equity
Accounts payable	376.2		290.1
Interest payable	233.7		191.4
Accrued expenses	1,094.7		1,067.4
Current portion of long-term debt	879.9	[1]	40.4	[1]
Intercompany payables	0		0
Liabilities held for sale	3.8		13.5
Total current liabilities	2,588.3		1,602.8
Long-term debt	20,532.2		19,759.5
Accumulated losses of subsidiaries in excess of investment	0
Deferred credits and other	823.0		901.7
Deferred income taxes	4,334.1		5,131.9
Intercompany payables	0		0
Liabilities held for sale	52.1		66.3
Total liabilities	28,329.7		27,462.2
Total Caesars stockholders’ (deficit)/equity	(411.7)		1,006.7
Non-controlling interests	80.1		46.7
Total (deficit)/equity	(331.6)		1,053.4		1,672.6	(867.0)
Total liabilities and stockholder's equity	27,998.1		28,515.6
CEC (Parent Guarantor) [Member]
Assets
Cash and cash equivalents	7.4		3.9		136.0	122.7
Restricted cash	0		0
Receivables, less allowance for doubtful accounts	0.1		0
Deferred income taxes	0		0
Prepayments and other current assets	5.0		0
Inventories	0		0
Intercompany receivables	29.6		15.7
Assets held for sale	0		0
Total current assets	42.1		19.6
Property and equipment, net of accumulated depreciation	0		0
Goodwill	0		0
Intangible assets other than goodwill	0		0
Investments in subsidiaries	0		535.8
Investments in and advances to non-consolidated affiliates	0		0
Restricted cash	0		0
Deferred charges and other	7.5		5.0
Intercompany receivables	563.1		469.0
Assets held for sale	0		0
Total assets	612.7		1,029.4
Liabilities and Stockholders’ (Deficit)/Equity
Accounts payable	3.9		0.2
Interest payable	0		0
Accrued expenses	3.7		7.5
Current portion of long-term debt	0		0
Intercompany payables	15.9		15.0
Liabilities held for sale	0		0
Total current liabilities	23.5		22.7
Long-term debt	0		0
Accumulated losses of subsidiaries in excess of investment	925.4
Deferred credits and other	4.1		0
Deferred income taxes	0		0
Intercompany payables	55.0		0
Liabilities held for sale	0		0
Total liabilities	1,008.0		22.7
Total Caesars stockholders’ (deficit)/equity	(395.3)		1,006.7
Non-controlling interests	0		0
Total (deficit)/equity	(395.3)		1,006.7
Total liabilities and stockholder's equity	612.7		1,029.4
Subsidiary Issuer [Member]
Assets
Cash and cash equivalents	911.9		16.6		61.0	(15.6)
Restricted cash	0		0
Receivables, less allowance for doubtful accounts	19.5		38.0
Deferred income taxes	17.4		37.9
Prepayments and other current assets	8.3		8.4
Inventories	0.3		0.4
Intercompany receivables	295.5		237.7
Assets held for sale	0		0
Total current assets	1,252.9		339.0
Property and equipment, net of accumulated depreciation	189.9		205.6
Goodwill	0		0
Intangible assets other than goodwill	4.2		4.9
Investments in subsidiaries	11,669.6		13,568.0
Investments in and advances to non-consolidated affiliates	0		0
Restricted cash	0		0
Deferred charges and other	298.4		324.9
Intercompany receivables	1,089.6		1,102.8
Assets held for sale	0		0
Total assets	14,504.6		15,545.2
Liabilities and Stockholders’ (Deficit)/Equity
Accounts payable	75.9		99.3
Interest payable	176.0		174.0
Accrued expenses	164.7		136.3
Current portion of long-term debt	126.2		20.2
Intercompany payables	88.1		67.9
Liabilities held for sale	0		0
Total current liabilities	630.9		497.7
Long-term debt	15,257.0		14,446.3
Accumulated losses of subsidiaries in excess of investment	0
Deferred credits and other	535.0		612.5
Deferred income taxes	422.6		647.7
Intercompany payables	614.5		420.2
Liabilities held for sale	0		0
Total liabilities	17,460.0		16,624.4
Total Caesars stockholders’ (deficit)/equity	(2,955.4)		(1,079.2)
Non-controlling interests	0		0
Total (deficit)/equity	(2,955.4)		(1,079.2)
Total liabilities and stockholder's equity	14,504.6		15,545.2
Subsidiary Guarantors of Parent and Subsidiary Guaranteed Debt [Member]
Assets
Cash and cash equivalents	353.8		372.5		344.7	429.9
Restricted cash	0		0
Receivables, less allowance for doubtful accounts	348.0		314.7
Deferred income taxes	75.7		117.7
Prepayments and other current assets	66.8		76.2
Inventories	31.7		27.9
Intercompany receivables	136.8		135.6
Assets held for sale	0		11.6
Total current assets	1,012.8		1,056.2
Property and equipment, net of accumulated depreciation	8,534.6		9,499.8
Goodwill	1,331.0		1,526.2
Intangible assets other than goodwill	3,183.0		3,524.2
Investments in subsidiaries	920.3		886.8
Investments in and advances to non-consolidated affiliates	3.0		4.2
Restricted cash	0		0
Deferred charges and other	184.8		182.9
Intercompany receivables	585.9		586.0
Assets held for sale	0		593.4
Total assets	15,755.4		17,859.7
Liabilities and Stockholders’ (Deficit)/Equity
Accounts payable	156.5		102.2
Interest payable	0.4		0.8
Accrued expenses	434.7		463.4
Current portion of long-term debt	10.7		7.0
Intercompany payables	284.8		264.8
Liabilities held for sale	0		10.1
Total current liabilities	887.1		848.3
Long-term debt	64.8		69.8
Accumulated losses of subsidiaries in excess of investment	0
Deferred credits and other	160.2		166.0
Deferred income taxes	2,188.9		2,558.8
Intercompany payables	871.7		871.7
Liabilities held for sale	0		0
Total liabilities	4,172.7		4,514.6
Total Caesars stockholders’ (deficit)/equity	11,582.7		13,345.1
Non-controlling interests	0		0
Total (deficit)/equity	11,582.7		13,345.1
Total liabilities and stockholder's equity	15,755.4		17,859.7
Subsidiary Non-Guarantors of Parent and Subsidiary Guaranteed Debt [Member]
Assets
Cash and cash equivalents	484.4		498.2		429.4	365.1
Restricted cash	833.6		66.6
Receivables, less allowance for doubtful accounts	212.9		135.7
Deferred income taxes	21.8		14.9
Prepayments and other current assets	69.9		75.8
Inventories	20.0		16.3
Intercompany receivables	97.2		108.7
Assets held for sale	5.1		3.9
Total current assets	1,744.9		920.1
Property and equipment, net of accumulated depreciation	6,977.2		6,780.2
Goodwill	1,829.3		1,834.2
Intangible assets other than goodwill	798.5		834.1
Investments in subsidiaries	790.7		882.9
Investments in and advances to non-consolidated affiliates	97.4		90.0
Restricted cash	364.6		451.1
Deferred charges and other	236.6		233.4
Intercompany receivables	153.8		98.7
Assets held for sale	471.2		584.3
Total assets	13,464.2		12,709.0
Liabilities and Stockholders’ (Deficit)/Equity
Accounts payable	139.9		88.4
Interest payable	57.3		16.6
Accrued expenses	491.6		460.2
Current portion of long-term debt	743.0		13.2
Intercompany payables	170.3		150.0
Liabilities held for sale	3.8		3.4
Total current liabilities	1,605.9		731.8
Long-term debt	6,122.9		6,100.7
Accumulated losses of subsidiaries in excess of investment	0
Deferred credits and other	123.7		123.2
Deferred income taxes	1,714.7		1,925.4
Intercompany payables	851.2		964.6
Liabilities held for sale	52.1		66.3
Total liabilities	10,470.5		9,912.0
Total Caesars stockholders’ (deficit)/equity	2,913.6		2,750.3
Non-controlling interests	80.1		46.7
Total (deficit)/equity	2,993.7		2,797.0
Total liabilities and stockholder's equity	13,464.2		12,709.0
Subsidiary Non-Guarantors of Parent-Only Guaranteed Debt [Member]
Assets
Cash and cash equivalents	838.2		870.7		774.1	795.0
Restricted cash	833.6		66.6
Receivables, less allowance for doubtful accounts	560.9		450.4
Deferred income taxes	97.5		132.6
Prepayments and other current assets	136.7		152.0
Inventories	51.7		44.2
Intercompany receivables	234.0		244.3
Assets held for sale	5.1		15.5
Total current assets	2,757.7		1,976.3
Property and equipment, net of accumulated depreciation	15,511.8		16,280.0
Goodwill	3,160.3		3,360.4
Intangible assets other than goodwill	3,981.5		4,358.3
Investments in subsidiaries	1,711.0		1,769.7
Investments in and advances to non-consolidated affiliates	100.4		94.2
Restricted cash	364.6		451.1
Deferred charges and other	421.4		416.3
Intercompany receivables	739.7		684.7
Assets held for sale	471.2		1,177.7
Total assets	29,219.6		30,568.7
Liabilities and Stockholders’ (Deficit)/Equity
Accounts payable	296.4		190.6
Interest payable	57.7		17.4
Accrued expenses	926.3		923.6
Current portion of long-term debt	753.7		20.2
Intercompany payables	455.1		414.8
Liabilities held for sale	3.8		13.5
Total current liabilities	2,493.0		1,580.1
Long-term debt	6,187.7		6,170.5
Accumulated losses of subsidiaries in excess of investment	0
Deferred credits and other	283.9		289.2
Deferred income taxes	3,903.6		4,484.2
Intercompany payables	1,722.9		1,836.3
Liabilities held for sale	52.1		66.3
Total liabilities	14,643.2		14,426.6
Total Caesars stockholders’ (deficit)/equity	14,496.3		16,095.4
Non-controlling interests	80.1		46.7
Total (deficit)/equity	14,576.4		16,142.1
Total liabilities and stockholder's equity	29,219.6		30,568.7
Consolidating/ Eliminating Adjustments [Member]
Assets
Cash and cash equivalents	0		0		0	0
Restricted cash	0		0
Receivables, less allowance for doubtful accounts	0		0
Deferred income taxes	0		0
Prepayments and other current assets	0		0
Inventories	0		0
Intercompany receivables	(559.1)		(497.7)
Assets held for sale	0		0
Total current assets	(559.1)		(497.7)
Property and equipment, net of accumulated depreciation	0		0
Goodwill	0		0
Intangible assets other than goodwill	0		0
Investments in subsidiaries	(13,380.6)		(15,873.5)
Investments in and advances to non-consolidated affiliates	0		0
Restricted cash	0		0
Deferred charges and other	(6.7)		0
Intercompany receivables	(2,392.4)		(2,256.5)
Assets held for sale	0		0
Total assets	(16,338.8)		(18,627.7)
Liabilities and Stockholders’ (Deficit)/Equity
Accounts payable	0		0
Interest payable	0		0
Accrued expenses	0		0
Current portion of long-term debt	0		0
Intercompany payables	(559.1)		(497.7)
Liabilities held for sale	0		0
Total current liabilities	(559.1)		(497.7)
Long-term debt	(912.5)		(857.3)
Accumulated losses of subsidiaries in excess of investment	(925.4)
Deferred credits and other	0		0
Deferred income taxes	7.9		0
Intercompany payables	(2,392.4)		(2,256.5)
Liabilities held for sale	0		0
Total liabilities	(4,781.5)		(3,611.5)
Total Caesars stockholders’ (deficit)/equity	(11,557.3)		(15,016.2)
Non-controlling interests	0		0
Total (deficit)/equity	(11,557.3)		(15,016.2)
Total liabilities and stockholder's equity	$ (16,338.8)		$ (18,627.7)

[1] Includes the note offering that occurred in December 2012. Although the notes mature in 2020, $750.0 million face value notes offered in December 2012 are classified as short-term obligations within our December 31, 2012 balance sheet because the escrow conditions were not met as of that date.