Consolidating Financial Information of Guarantors and Issuers - Condensed Consolidating Statement of Comprehensive Income/(Loss) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Condensed Financial Statements, Captions [Line Items]
Net revenues	$ 2,198.4	$ 2,189.7	$ 6,572.5	$ 6,467.5
Direct operating expenses	1,147.6	1,171.1	3,460.6	3,443.3
Property, general, administrative, and other	543.2	544.3	1,577.9	1,571.9
Depreciation and amortization	182.0	176.8	546.6	518.6
Intangible and tangible asset impairment charges	419.0	27.1	720.5	27.1
Write-downs, reserves, and project opening costs, net of recoveries	32.6	12.5	63.4	60.0
Corporate expense	51.8	36.5	145.2	115.1
Other operating expenses	75.4	41.6	204.0	125.5
Total operating expenses	2,419.0	2,009.9	6,654.8	5,861.5
(Loss)/income from operations	(220.6)	179.8	(82.3)	606.0
Interest expense, net of interest capitalized	(515.7)	(450.3)	(1,574.3)	(1,448.3)
Gains on early extinguishments of debt			79.5	47.9
Other income, including interest income	4.6	8.2	19.4	16.7
(Loss)/income from continuing operations before income taxes	(731.7)	(262.3)	(1,557.7)	(777.7)
Benefit/(provision) for income taxes	225.5	77.7	502.9	271.2
Loss from continuing operations, net of income taxes	(506.2)	(184.6)	(1,054.8)	(506.5)
Discontinued operations
Income from discontinued operations	4.6	18.4	46.5	57.9
Provision for income taxes	(1.8)	(7.2)	(18.0)	(22.7)
Income from discontinued operations, net of income taxes	2.8	11.2	28.5	35.2
Net (loss)/income	(503.4)	(173.4)	(1,026.3)	(471.3)
Less: net income attributable to non-controlling interests	(2.1)	9.4	(1.5)	4.3
Net (loss)/income attributable to Caesars	(505.5)	(164.0)	(1,027.8)	(467.0)
Other comprehensive income/(loss):
Total other comprehensive (loss)/income, net of income taxes	(1.5)	(30.6)	10.7	(27.0)
Less: foreign currency translation adjustments attributable to non-controlling interests	0.2	(0.2)	(1.3)	(3.6)
Comprehensive (loss)/income attributable to Caesars	(506.8)	(194.8)	(1,018.4)	(497.6)
CEC (Parent Guarantor) [Member]
Condensed Financial Statements, Captions [Line Items]
Loss/(income) on interests in subsidiaries	503.9	161.7	1,024.2	462.3
Corporate expense	6.4	7.0	18.5	17.2
Other operating expenses		(0.2)
Total operating expenses	510.3	168.5	1,042.7	479.5
(Loss)/income from operations	(510.3)	(168.5)	(1,042.7)	(479.5)
Interest expense, net of interest capitalized	(0.4)		(0.4)
Other income, including interest income	4.3	3.3	13.3	10.0
(Loss)/income from continuing operations before income taxes	(506.4)	(165.2)	(1,029.8)	(469.5)
Benefit/(provision) for income taxes	0.9	1.2	2.0	2.5
Loss from continuing operations, net of income taxes	(505.5)	(164.0)	(1,027.8)	(467.0)
Discontinued operations
Net (loss)/income	(505.5)	(164.0)	(1,027.8)	(467.0)
Net (loss)/income attributable to Caesars	(505.5)	(164.0)	(1,027.8)	(467.0)
Other comprehensive income/(loss):
Comprehensive (loss)/income attributable to Caesars	(505.5)	(164.0)	(1,027.8)	(467.0)
Subsidiary Issuer [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenues	29.4	29.0	83.0	92.3
Direct operating expenses	12.1	13.4	33.9	38.4
Property, general, administrative, and other		12.6	12.2	40.0
Depreciation and amortization	1.7	1.7	5.1	5.1
Write-downs, reserves, and project opening costs, net of recoveries		10.6		38.7
Loss/(income) on interests in subsidiaries	224.0	(87.4)	219.0	(316.1)
Corporate expense	34.9	20.0	98.4	75.2
Other operating expenses	1.3	0.3	6.9	1.0
Total operating expenses	274.0	(28.8)	375.5	(117.7)
(Loss)/income from operations	(244.6)	57.8	(292.5)	210.0
Interest expense, net of interest capitalized	(482.0)	(413.5)	(1,452.9)	(1,328.9)
Other income, including interest income	10.7	14.3	40.0	37.9
(Loss)/income from continuing operations before income taxes	(715.9)	(341.4)	(1,705.4)	(1,081.0)
Benefit/(provision) for income taxes	171.0	148.2	525.1	496.1
Loss from continuing operations, net of income taxes	(544.9)	(193.2)	(1,180.3)	(584.9)
Discontinued operations
Net (loss)/income	(544.9)	(193.2)	(1,180.3)	(584.9)
Net (loss)/income attributable to Caesars	(544.9)	(193.2)	(1,180.3)	(584.9)
Other comprehensive income/(loss):
Total other comprehensive (loss)/income, net of income taxes	6.8	(27.6)	(19.0)	(3.6)
Comprehensive (loss)/income attributable to Caesars	(538.1)	(220.8)	(1,199.3)	(588.5)
Subsidiary Guarantors of Parent and Subsidiary Guaranteed Debt [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenues	1,275.0	1,316.2	3,832.8	3,884.4
Direct operating expenses	681.2	700.0	2,053.2	2,058.1
Property, general, administrative, and other	297.8	327.3	872.6	939.5
Depreciation and amortization	112.4	106.0	330.8	320.1
Intangible and tangible asset impairment charges	416.0		616.5
Write-downs, reserves, and project opening costs, net of recoveries		4.3		16.6
Loss/(income) on interests in subsidiaries	(4.1)	(11.5)	0.8	(37.7)
Corporate expense	8.1	7.2	21.9	15.5
Other operating expenses	58.6	24.4	124.8	72.7
Total operating expenses	1,570.0	1,157.7	4,020.6	3,384.8
(Loss)/income from operations	(295.0)	158.5	(187.8)	499.6
Interest expense, net of interest capitalized	(7.2)	(7.3)	(21.8)	(25.5)
Other income, including interest income	5.3	3.8	16.1	13.2
(Loss)/income from continuing operations before income taxes	(296.9)	155.0	(193.5)	487.3
Benefit/(provision) for income taxes	57.5	(58.7)	18.2	(183.8)
Loss from continuing operations, net of income taxes	(239.4)	96.3	(175.3)	303.5
Discontinued operations
Income from discontinued operations	4.6	18.4	46.5	57.9
Provision for income taxes	(0.8)	(3.3)	(8.3)	(10.3)
Income from discontinued operations, net of income taxes	3.8	15.1	38.2	47.6
Net (loss)/income	(235.6)	111.4	(137.1)	351.1
Net (loss)/income attributable to Caesars	(235.6)	111.4	(137.1)	351.1
Other comprehensive income/(loss):
Comprehensive (loss)/income attributable to Caesars	(235.6)	111.4	(137.1)	351.1
Subsidiary Non-Guarantors of Parent and Subsidiary Guaranteed Debt [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenues	939.5	893.7	2,800.6	2,649.6
Direct operating expenses	454.3	457.7	1,373.5	1,346.8
Property, general, administrative, and other	283.1	239.3	812.1	696.5
Depreciation and amortization	67.9	69.1	210.7	193.4
Intangible and tangible asset impairment charges	3.0	27.1	104.0	27.1
Write-downs, reserves, and project opening costs, net of recoveries		(2.4)		4.7
Corporate expense	10.2	16.6	31.3	61.9
Other operating expenses	15.5	17.1	72.3	51.8
Total operating expenses	834.0	824.5	2,603.9	2,382.2
(Loss)/income from operations	105.5	69.2	196.7	267.4
Interest expense, net of interest capitalized	(76.8)	(74.1)	(248.7)	(241.0)
Gains on early extinguishments of debt			79.5	47.9
Other income, including interest income	35.0	31.4	99.5	102.7
(Loss)/income from continuing operations before income taxes	63.7	26.5	127.0	177.0
Benefit/(provision) for income taxes	(4.9)	(16.9)	(52.1)	(56.0)
Loss from continuing operations, net of income taxes	58.8	9.6	74.9	121.0
Discontinued operations
Net (loss)/income	58.8	9.6	74.9	121.0
Less: net income attributable to non-controlling interests	(2.1)	9.4	(1.5)	4.3
Net (loss)/income attributable to Caesars	56.7	19.0	73.4	125.3
Other comprehensive income/(loss):
Total other comprehensive (loss)/income, net of income taxes	(8.3)	(3.0)	29.7	(23.4)
Less: foreign currency translation adjustments attributable to non-controlling interests	0.2	(0.2)	(1.3)	(3.6)
Comprehensive (loss)/income attributable to Caesars	48.6	15.8	101.8	98.3
Subsidiary Non-Guarantors of Parent-Only Guaranteed Debt [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenues	2,214.5	2,209.9	6,633.4	6,534.0
Direct operating expenses	1,135.5	1,157.7	3,426.7	3,404.9
Property, general, administrative, and other	580.9	566.6	1,684.7	1,636.0
Depreciation and amortization	180.3	175.1	541.5	513.5
Intangible and tangible asset impairment charges	419.0	27.1	720.5	27.1
Write-downs, reserves, and project opening costs, net of recoveries		1.9		21.3
Loss/(income) on interests in subsidiaries	(4.1)	(11.5)	0.8	(37.7)
Corporate expense	18.3	23.8	53.2	77.4
Other operating expenses	74.1	41.5	197.1	124.5
Total operating expenses	2,404.0	1,982.2	6,624.5	5,767.0
(Loss)/income from operations	(189.5)	227.7	8.9	767.0
Interest expense, net of interest capitalized	(84.0)	(81.4)	(270.5)	(266.5)
Gains on early extinguishments of debt			79.5	47.9
Other income, including interest income	40.3	35.2	115.6	115.9
(Loss)/income from continuing operations before income taxes	(233.2)	181.5	(66.5)	664.3
Benefit/(provision) for income taxes	52.6	(75.6)	(33.9)	(239.8)
Loss from continuing operations, net of income taxes	(180.6)	105.9	(100.4)	424.5
Discontinued operations
Income from discontinued operations	4.6	18.4	46.5	57.9
Provision for income taxes	(0.8)	(3.3)	(8.3)	(10.3)
Income from discontinued operations, net of income taxes	3.8	15.1	38.2	47.6
Net (loss)/income	(176.8)	121.0	(62.2)	472.1
Less: net income attributable to non-controlling interests	(2.1)	9.4	(1.5)	4.3
Net (loss)/income attributable to Caesars	(178.9)	130.4	(63.7)	476.4
Other comprehensive income/(loss):
Total other comprehensive (loss)/income, net of income taxes	(8.3)	(3.0)	29.7	(23.4)
Less: foreign currency translation adjustments attributable to non-controlling interests	0.2	(0.2)	(1.3)	(3.6)
Comprehensive (loss)/income attributable to Caesars	(187.0)	127.2	(35.3)	449.4
Consolidating/ Eliminating Adjustments [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenues	(45.5)	(49.2)	(143.9)	(158.8)
Property, general, administrative, and other	(37.7)	(34.9)	(119.0)	(104.1)
Loss/(income) on interests in subsidiaries	(723.8)	(62.8)	(1,244.0)	(108.5)
Corporate expense	(7.8)	(14.3)	(24.9)	(54.7)
Total operating expenses	(769.3)	(112.0)	(1,387.9)	(267.3)
(Loss)/income from operations	723.8	62.8	1,244.0	108.5
Interest expense, net of interest capitalized	50.7	44.6	149.5	147.1
Other income, including interest income	(50.7)	(44.6)	(149.5)	(147.1)
(Loss)/income from continuing operations before income taxes	723.8	62.8	1,244.0	108.5
Benefit/(provision) for income taxes	1.0	3.9	9.7	12.4
Loss from continuing operations, net of income taxes	724.8	66.7	1,253.7	120.9
Discontinued operations
Provision for income taxes	(1.0)	(3.9)	(9.7)	(12.4)
Income from discontinued operations, net of income taxes	(1.0)	(3.9)	(9.7)	(12.4)
Net (loss)/income	723.8	62.8	1,244.0	108.5
Net (loss)/income attributable to Caesars	723.8	62.8	1,244.0	108.5
Other comprehensive income/(loss):
Comprehensive (loss)/income attributable to Caesars	$ 723.8	$ 62.8	$ 1,244.0	$ 108.5