Subsequent Events Subsequent Events (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013	Dec. 31, 2013
Subsequent Event [Line Items]
Proceeds from the issuance of long-term debt	$ 0		$ 1,589.5
Proceeds from issuance of common stock	0.90		0
Long-term Debt	21,191.5			21,115.5
Repayments of Long-term Debt	9.7		1,784.2
Caesars Growth Partners, LLC [Member]
Subsequent Event [Line Items]
Long-term Debt	720.1	[1]		721.7	[1]
Caesars Growth Partners, LLC [Member] | First Closing of Property Transaction [Member]
Subsequent Event [Line Items]
Sales Price Of Subsidiary	1,340.0
Proceeds from the issuance of long-term debt	700.0
Caesars Growth Partners, LLC [Member] | Second Closing of Property Transaction [Member]
Subsequent Event [Line Items]
Sales Price Of Subsidiary	660.0
Caesars Growth Partners, LLC [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Sales Price Of Subsidiary	2,000.0
Caesars Growth Partners, LLC [Member] | Secured Debt [Member]
Subsequent Event [Line Items]
Long-term Debt	454.1			456.1
Caesars Growth Partners, LLC [Member] | Secured Debt [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Long-term Debt	1,325.0
Caesars Entertainment Operating Company [Member]
Subsequent Event [Line Items]
Long-term Debt	15,855.7	[2]		15,782.9	[2]
Caesars Entertainment Operating Company [Member] | Common Stock [Member]
Subsequent Event [Line Items]
Stock Issued During Period, Shares, New Issues	68.1
Proceeds from issuance of common stock	6.15
Noncontrolling Interest, Ownership Percentage by Parent	95.00%
Caesars Entertainment Operating Company [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Long-term Debt	1,750.0
Caesars Entertainment Operating Company [Member] | Prior to Bank Amendment [Member]
Subsequent Event [Line Items]
Long-term Debt	1,450.0
Caesars Entertainment Operating Company [Member] | Subsequent to Bank Amendment [Member]
Subsequent Event [Line Items]
Long-term Debt	300.0
Repayments of Long-term Debt	400.0
Caesars Entertainment Operating Company [Member] | Notes at Fix Six Two Percent [Member] | Secured Debt [Member] | Announced Tender Offers [Member]
Subsequent Event [Line Items]
Long-term Debt	791.8
Proceeds from Issuance of Senior Long-term Debt	782.8
Caesars Entertainment Operating Company [Member] | Notes at Ten Percent [Member] | Secured Debt [Member] | Announced Tender Offers [Member]
Subsequent Event [Line Items]
Long-term Debt	214.8
Proceeds from Issuance of Senior Long-term Debt	111.1
Third Party [Member] | Caesars Entertainment Operating Company [Member] | Notes at Fix Six Two Percent [Member] | Secured Debt [Member] | Announced Tender Offers [Member]
Subsequent Event [Line Items]
Long-term Debt	746.4
Third-Party Payor [Member] | Caesars Entertainment Operating Company [Member] | Notes at Ten Percent [Member] | Secured Debt [Member] | Announced Tender Offers [Member]
Subsequent Event [Line Items]
Long-term Debt	$ 108.7

[1] As of March 31, 2014 and December 31, 2013, under the CGP LLC structure, CIE has $39.8 million drawn under a revolver arrangement with Caesars Entertainment. Accordingly, such debt is eliminated in consolidation.

[2] face value of debt issued by CEOC is held by other consolidated entities, substantially all of which is held by CGP LLC. Accordingly, such debt is not considered outstanding in the above presentation.