Debt - Outstanding Debt (Detail) - USD ($) $ in Millions		Jun. 30, 2015	Dec. 31, 2014
Long-term Debt, Gross		$ 7,167	$ 25,600
Long-term Debt		7,024	23,009
Long-term Debt, Current Maturities		(222)	(15,779)
Long Term Debt Non Current Face Value		6,945
Long-term Debt, Excluding Current Maturities		6,802	7,230
Caesars Entertainment Operating Company [Member]
Long-term Debt, Gross		0
Long Term Debt, less Discount		0	15,930
Long-term Debt			16,007
Long-term Debt, Current Maturities			(15,800)
Caesars Entertainment Resort Properties [Member]
Long-term Debt, Gross		4,728
Long-term Debt		4,655	4,754
Long-term Debt, Current Maturities		(133)	(39)
Long Term Debt Non Current Face Value		4,595
Long-term Debt, Excluding Current Maturities		4,522	4,715
Parent [Member]
Long-term Debt, Gross		3
Long-term Debt		3	13
Variable Interest Entity, Primary Beneficiary [Member]
Long-term Debt, Current Maturities		(86)	(20)
Long-term Debt, Excluding Current Maturities		2,280	2,292
Variable Interest Entity, Primary Beneficiary [Member] | Caesars Growth Partners, LLC [Member]
Long-term Debt, Gross	[1]	2,436
Long-term Debt	[1]	2,366	2,312
Long-term Debt, Current Maturities		(86)	(20)
Long Term Debt Non Current Face Value		2,350
Long-term Debt, Excluding Current Maturities		$ 2,280	$ 2,292

[1] As of June 30, 2015, CIE had $40 million drawn under a revolver arrangement with Caesars Entertainment. Accordingly, such debt is not considered outstanding in the above presentation.