Goodwill and Other Intangible Assets - Changes in Carrying Value of Goodwill by Segment (Details) $ in Millions		12 Months Ended
		Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($) business
Goodwill [Roll Forward]
Gross Goodwill, Beginning Balance		$ 9,454	$ 9,441
Additions		3	13
Transfers	[1]		0
Goodwill, Other Changes		(4,294)
Gross Goodwill, Ending Balance		5,163	9,454
Accumulated Impairment, Beginning Balance		(7,088)	(6,378)
Impairment of goodwill		(3,621)	(710)	[2]
Accumulated Impairment, Transfers	[2]		0
Accumulated Impairment, Ending Balance		(3,467)	(7,088)
Goodwill, Net Carrying Value		1,696	2,366
Caesars Entertainment Operating Company [Member]
Goodwill [Roll Forward]
Gross Goodwill, Beginning Balance		4,294	5,435
Additions		0	0
Transfers	[1]		(1,141)
Goodwill, Other Changes		(4,294)
Gross Goodwill, Ending Balance		0	4,294
Accumulated Impairment, Beginning Balance		(3,621)	(4,175)
Impairment of goodwill		(3,621)	(251)	[2]
Accumulated Impairment, Transfers	[2]		805
Accumulated Impairment, Ending Balance		0	(3,621)
Goodwill, Net Carrying Value		0	673
Caesars Entertainment Resort Properties [Member]
Goodwill [Roll Forward]
Gross Goodwill, Beginning Balance		3,894	3,894
Additions		0	0
Transfers	[1]		0
Goodwill, Other Changes		0
Gross Goodwill, Ending Balance		3,894	3,894
Accumulated Impairment, Beginning Balance		(2,492)	(2,203)
Impairment of goodwill		0	(289)	[2]
Accumulated Impairment, Transfers	[2]		0
Accumulated Impairment, Ending Balance		(2,492)	(2,492)
Goodwill, Net Carrying Value		1,402	1,402
Caesars Growth Partners, LLC [Member]
Goodwill [Roll Forward]
Gross Goodwill, Beginning Balance		1,166	25
Additions		0	0
Transfers	[1]		1,141
Goodwill, Other Changes		0
Gross Goodwill, Ending Balance		1,166	1,166
Accumulated Impairment, Beginning Balance		(960)	0
Impairment of goodwill		0	(155)	[2]
Accumulated Impairment, Transfers	[2]		(805)
Accumulated Impairment, Ending Balance		(960)	(960)
Goodwill, Net Carrying Value		206	206
Caesars Interactive Entertainment [Member]
Goodwill [Roll Forward]
Gross Goodwill, Beginning Balance		100	87
Additions		3	13
Transfers	[1]		0
Goodwill, Other Changes		0
Gross Goodwill, Ending Balance		103	100
Accumulated Impairment, Beginning Balance		(15)	0
Impairment of goodwill		0	(15)	[2]
Accumulated Impairment, Transfers	[2]		0
Accumulated Impairment, Ending Balance		(15)	(15)
Goodwill, Net Carrying Value		$ 88	$ 85
Caesars Entertainment Operating Company [Member] | Caesars Growth Partners, LLC [Member]
Number of Businesses Acquired | business			4

[1] During 2014, CGP purchased four properties from CEOC (see Note 19).

[2] CIE impairment during 2014 related to CIE RMG BEL, LLC is included in discontinued operations. (See Note 7)