CEOC Bankruptcy CEOC Bankruptcy - Deconsolidation Pro Forma Information (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended			48 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	Dec. 31, 2014	Dec. 31, 2011
Revenue, Net	$ 2,131	$ 2,212	$ 2,140	$ 2,033	$ 2,004	$ 2,087	$ 2,069	$ 2,060	$ 8,516	$ 8,220	$ 8,186
Net (loss)/income	(1,070)	(980)	(433)	(383)	(1,752)	(762)	(209)	(217)	(2,866)	(2,940)	(1,503)	7,200
Net income/(loss) attributable to Caesars	(1,023)	(908)	(466)	(386)	(1,757)	(761)	(212)	(218)	(2,783)	(2,948)	(1,508)
Net loss per share (usd per share)	$ (7.08)	$ (6.29)	$ (3.24)	$ (2.82)	$ (12.83)	$ (6.03)	$ (1.69)	$ (1.74)	$ (19.53)	$ (22.93)	$ (12.04)
Assets	23,535				24,689				23,535	24,689		23,535
Liabilities	28,277				26,593				28,277	26,593		28,277
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	(4,742)				(1,904)				(4,742)	(1,904)	(333)	(4,742)	1,053
Deconsolidation Adjustment [Member] | Caesars Entertainment Operating Company Inc [Member]
Revenue, Net									(4,871)
Net (loss)/income									2,220
Net income/(loss) attributable to Caesars									2,056
Net loss per share (usd per share)									$ 14.43
Assets	(11,122)								(11,122)			(11,122)
Liabilities	(18,733)								(18,733)			(18,733)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	7,611								7,611			7,611
Pro Forma for Deconsolidation [Member]
Revenue, Net									3,645
Net (loss)/income									(646)
Net income/(loss) attributable to Caesars									(727)
Net loss per share (usd per share)									$ (5.10)
Assets	12,413								12,413			12,413
Liabilities	9,544								9,544			9,544
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 2,869								$ 2,869			$ 2,869