Segment Reporting Segment Reporting - Property EBITDA (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Segment Reporting Information [Line Items]
Income/(loss) from operations	$ (402)	$ (328)	$ 127	$ 151	$ (1,777)	$ (524)	$ 127	$ 148	$ (452)		$ (2,026)		$ 134
Depreciation and amortization									636		701		844
Write-downs, reserves, and project opening costs, net of recoveries									120		104		99
Impairment of goodwill									695		104		195
Impairment of tangible and other intangible assets									299		2,727		430
Corporate expense									282		161		195
Acquisition and integration costs and other									116		99		23
EBITDA attributable to discontinued operations									(7)		7		108
Property EBITDA									1,689.0		1,877.0		2,028.0
Caesars Entertainment Operating Company [Member]
Segment Reporting Information [Line Items]
Income/(loss) from operations									(323)	[1]	(1,344)	[2]	(159)	[3]
Depreciation and amortization									291	[1]	384	[2]	497	[3]
Write-downs, reserves, and project opening costs, net of recoveries									48		72		59
Impairment of goodwill									251	[1]	104	[2]	195	[3]
Impairment of tangible and other intangible assets									308	[1]	1,668	[2]	427	[3]
Corporate expense									189		138		158
Acquisition and integration costs and other									58		34		25
EBITDA attributable to discontinued operations									(6)		7		108
Property EBITDA									816.0		1,063.0		1,310.0	[3]
Caesars Entertainment Resort Properties [Member]
Segment Reporting Information [Line Items]
Income/(loss) from operations									(32)		(804)		161
Depreciation and amortization									200		216		252
Write-downs, reserves, and project opening costs, net of recoveries									14		15		22
Impairment of goodwill									289		0		0
Impairment of tangible and other intangible assets									(12)		1,059		3
Corporate expense									60		47		80
Acquisition and integration costs and other									1		(3)		(1)
EBITDA attributable to discontinued operations									0		0		0
Property EBITDA									520.0		530.0		517.0
Caesars Growth Partners, LLC [Member]
Segment Reporting Information [Line Items]
Income/(loss) from operations									(139)		(3)		173
Depreciation and amortization									115		83		84
Write-downs, reserves, and project opening costs, net of recoveries									56		15		3
Impairment of goodwill									155		0		0
Impairment of tangible and other intangible assets									0		0		0
Corporate expense									23		0		0
Acquisition and integration costs and other									55		153		0
EBITDA attributable to discontinued operations									0		0		0
Property EBITDA									265.0		248.0		260.0
Caesars Interactive Entertainment [Member]
Segment Reporting Information [Line Items]
Income/(loss) from operations									21	[4]	(9)	[5]	35	[6]
Depreciation and amortization									28	[4]	18	[5]	11	[6]
Write-downs, reserves, and project opening costs, net of recoveries									0		0		0
Impairment of goodwill									0	[4]	0	[5]	0	[6]
Impairment of tangible and other intangible assets									3	[4]	0	[5]	0	[6]
Corporate expense									0		0		0
Acquisition and integration costs and other									33		53		0
EBITDA attributable to discontinued operations									(1)		0		0
Property EBITDA									84.0		62.0		46.0
Parent Company [Member]
Segment Reporting Information [Line Items]
Income/(loss) from operations									14		134		(76)
Depreciation and amortization									3		0		0
Write-downs, reserves, and project opening costs, net of recoveries									7		2		15
Impairment of goodwill									0		0		0
Impairment of tangible and other intangible assets									0		0		0
Corporate expense									13		16		28
Acquisition and integration costs and other									(31)		(138)		(1)
EBITDA attributable to discontinued operations									0		0		0
Property EBITDA									6.0		14.0		(34.0)
Intersubsegment Eliminations [Member]
Segment Reporting Information [Line Items]
Income/(loss) from operations									7		0		0
Depreciation and amortization									(1)		0		0
Write-downs, reserves, and project opening costs, net of recoveries									(5)		0		0
Impairment of goodwill									0		0		0
Impairment of tangible and other intangible assets									0		0		0
Corporate expense									(3)		(40)		(71)
Acquisition and integration costs and other									0		0		0
EBITDA attributable to discontinued operations									0		0		0
Property EBITDA									$ (2.0)		$ (40.0)		$ (71.0)

[1] Includes foreign net revenues of $337 million.

[2] Includes foreign net revenues of $356 million.

[3] Includes foreign net revenues of $443 million

[4] Includes foreign net revenues of $434 million.

[5] Includes foreign net revenues of $224 million.

[6] Includes foreign net revenues of $192 million.