Segment Reporting - Statement of Operations (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015		Dec. 31, 2014		Dec. 31, 2013
Segment Reporting Information [Line Items]
Net income/(loss) attributable to company	$ (76)	$ (791)	$ 15	$ 6,772	$ (1,023)	$ (908)	$ (466)	$ (386)	$ 5,920		$ (2,783)		$ (2,948)
Condensed Statements of Operations by Segment
Other revenue									468		703		601
Net revenues	1,119	1,141	1,141	1,253	2,131	2,212	2,140	2,033	4,654		8,516		8,220
Depreciation and amortization									401		636		701
Impairment of goodwill									0		695		104
Impairment of tangible and other intangible assets									1		299		2,727
Income/(loss) from operations	$ 104	$ 139	$ 186	$ 144	$ (402)	$ (328)	$ 127	$ 151	573		(452)		(2,026)
Interest expense									(684)		(2,670)		(2,252)
Deconsolidation and restructuring of CEOC and other									6,115		(95)		28
Income tax benefit									55		543		1,517
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Net income/(loss) attributable to company									5,777		95		801
Condensed Statements of Operations by Segment
Other revenue									26		112		22
Net revenues									26		101		20
Depreciation and amortization									0		3		0
Impairment of goodwill									0		0		0
Impairment of tangible and other intangible assets									0		0		0
Income/(loss) from operations									(328)		14		134
Interest expense									(4)		(17)		(9)
Deconsolidation and restructuring of CEOC and other									6,113		(30)		87
Income tax benefit									122		73		597
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Net income/(loss) attributable to company									1		0		0
Condensed Statements of Operations by Segment
Other revenue									(30)		(187)		(102)
Net revenues									(35)		(330)		(121)
Depreciation and amortization									0		(1)		0
Impairment of goodwill									0		0		0
Impairment of tangible and other intangible assets									0		0		0
Income/(loss) from operations									1		7		0
Interest expense									5		90		135
Deconsolidation and restructuring of CEOC and other									(5)		(97)		(135)
Income tax benefit									0		0		0
Caesars Entertainment Operating Company [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net income/(loss) attributable to company									(85)		(2,524)		(2,939)
Condensed Statements of Operations by Segment
Other revenue									12		324	[1]	354	[2]
Net revenues									164		4,812	[1]	4,985	[2]
Depreciation and amortization									11		291	[1]	384	[2]
Impairment of goodwill									0		251	[1]	104	[2]
Impairment of tangible and other intangible assets									0		308	[1]	1,668	[2]
Income/(loss) from operations									9		(323)	[1]	(1,344)	[2]
Interest expense									(87)		(2,184)	[1]	(2,069)	[2]
Deconsolidation and restructuring of CEOC and other									0		(100)	[1]	34	[2]
Income tax benefit									0		264	[1]	651	[2]
Caesars Entertainment Operating Company [Member] | Operating Segments [Member] | International [Member]
Condensed Statements of Operations by Segment
Net revenues											337		356
Caesars Entertainment Resort Properties [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net income/(loss) attributable to company									7		(393)		(651)
Condensed Statements of Operations by Segment
Other revenue									297		300		231
Net revenues									2,154		2,065		1,979
Depreciation and amortization									210		200		216
Impairment of goodwill									0		289		0
Impairment of tangible and other intangible assets									0		(12)		1,059
Income/(loss) from operations									411		(32)		(804)
Interest expense									(399)		(389)		(246)
Deconsolidation and restructuring of CEOC and other									0		0		15
Income tax benefit									(5)		28		384
Caesars Growth Partners | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net income/(loss) attributable to company									113		71		(146)
Condensed Statements of Operations by Segment
Other revenue									163		154		96
Net revenues									1,579		1,281		1,040
Depreciation and amortization									150		115		83
Impairment of goodwill									0		155		0
Impairment of tangible and other intangible assets									1		0		0
Income/(loss) from operations									291		(139)		(3)
Interest expense									(194)		(164)		(60)
Deconsolidation and restructuring of CEOC and other									2		132		28
Income tax benefit									0		214		(113)
Caesars Interactive Entertainment [Member] | International [Member]
Condensed Statements of Operations by Segment
Net revenues									616
Caesars Interactive Entertainment [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net income/(loss) attributable to company									107		(32)		(13)
Condensed Statements of Operations by Segment
Other revenue									0	[3]	0	[4]	0	[5]
Net revenues									766	[3]	587	[4]	317	[5]
Depreciation and amortization									30	[3]	28	[4]	18	[5]
Impairment of goodwill									0	[3]	0	[4]	0	[5]
Impairment of tangible and other intangible assets									0	[3]	3	[4]	0	[5]
Income/(loss) from operations									189	[3]	21	[4]	(9)	[5]
Interest expense									(5)	[3]	(6)	[4]	(3)	[5]
Deconsolidation and restructuring of CEOC and other									5	[3]	0	[4]	(1)	[5]
Income tax benefit									$ (62)	[3]	(36)	[4]	(2)	[5]
Caesars Interactive Entertainment [Member] | Operating Segments [Member] | International [Member]
Condensed Statements of Operations by Segment
Net revenues											$ 434		$ 224

[1] Includes foreign net revenues of $337 million

[2] Includes foreign net revenues of $356 million

[3] Includes foreign net revenues of $616 million

[4] Includes foreign net revenues of $434 million

[5] Includes foreign net revenues of $224 million