Description of Business - Additional Information (Details) $ in Millions		3 Months Ended	12 Months Ended
		Dec. 31, 2015 USD ($) employee business Casinos	Dec. 31, 2015 USD ($) employee business Casinos shares		Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)
Description of Business [Line Items]
Entity Number of Employees | employee		33,000	33,000
Substantial Doubt about Going Concern, Conditions or Events			The circumstances set forth above and described in more detail below under “CEC Liquidity” and “Litigation,” individually and collectively, raise substantial doubt about CEC’s ability to continue as a going concern between now and the Effective Date of the Restructuring, while continuing to also meet its commitments. Under the terms of the Restructuring, all related litigation is expected to be resolved. However, in the event of a material adverse ruling on one or all of the litigation matters disclosed below, it is likely that a CEC reorganization under Chapter 11 of the Bankruptcy Code would be necessary.
Notes Payable, Related Parties, Current		$ 35	$ 35
Long-term Debt, Gross		7,096	7,096
Contractual Obligation, Due in Next Fiscal Year		767	767
Contractual Obligation, Excluding Latest Fiscal Year		9,500	9,500
Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year		187	187
Cash and cash equivalents		$ 1,338	$ 1,338		$ 2,806	$ 2,771	$ 1,758
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares			0.664
United States
Description of Business [Line Items]
Number Of Casinos Operated Or Managed | Casinos		12	12
Other Restructuring [Member] | Caesars Entertainment Operating Company [Member] | Nonoperating Income (Expense)
Description of Business [Line Items]
Restructuring Costs	[1]	$ 86	$ 406
Other Restructuring Costs		25	163	[2]
Payments for Restructuring		61	63	[3]
Interest Expense [Member]
Description of Business [Line Items]
Other Commitment		3,190	3,190
Other Commitment, Due in Next Twelve Months		580	580
Convertible Debt [Member]
Description of Business [Line Items]
Other Commitment		$ 450	$ 450
Caesars Entertainment Operating Company [Member]
Description of Business [Line Items]
Number Of Casinos Managed | business		28	28
Long-term Debt, Gross	[4]	$ 0	$ 0
Third Party [Member]
Description of Business [Line Items]
Number Of Casinos Managed | Casinos		10	10
Third Party [Member] | Indian Land [Member]
Description of Business [Line Items]
Number Of Casinos Managed | Casinos		4	4
Affiliated Entity [Member] | Business Restructuring Reserves [Member]
Description of Business [Line Items]
Other Commitment		$ 700	$ 700
Majority-Owned Subsidiary, Unconsolidated [Member] | Business Restructuring Reserves [Member]
Description of Business [Line Items]
Other Commitment		$ 269	$ 269
Equity Method Investment, Ownership Percentage		14.80%	14.80%
Parent Company [Member]
Description of Business [Line Items]
Cash and cash equivalents		$ 48	$ 48		378	$ 113	$ 7
Workforce Subject to Collective Bargaining Arrangements [Member]
Description of Business [Line Items]
Entity Number of Employees | employee		16,000	16,000
Payment Guarantee [Member] | Other Restructuring [Member] | Caesars Entertainment Operating Company [Member] | Nonoperating Income (Expense)
Description of Business [Line Items]
Restructuring charges	[5]		$ 386
Caesars Entertainment Operating Company [Member] | Business Restructuring Reserves [Member]
Description of Business [Line Items]
Other Restructuring Costs			$ 75
Caesars Entertainment Resort Properties [Member]
Description of Business [Line Items]
Proceeds from Contributed Capital					43
Caesars Growth Partners, LLC [Member]
Description of Business [Line Items]
Proceeds from Contributed Capital					$ 23
Geographic Concentration Risk [Member] | NEVADA | United States
Description of Business [Line Items]
Number Of Casinos Operated Or Managed | Casinos		8	8
Geographic Concentration Risk [Member] | NEVADA | Sales Revenue, Net [Member] | United States
Description of Business [Line Items]
Concentration Risk, Percentage			52.00%

[1] $86 million was paid in fourth quarter of 2015

[2] For the purposes of determining this amount, the Effective Date is estimated to be in the third quarter of 2016; however this date is outside of our control and is highly subject to change.

[3] $61 million was paid in fourth quarter of 2015

[4] CEOC was deconsolidated effective January 15, 2015, therefore no amounts are reported for CEOC debt as of December 31, 2015. See Note 3.

[5] The liability is primarily based on the terms of the settlement agreement for creditors that have agreed to the settlement. A portion of the liability was estimated for creditors who have not yet agreed, based on the assumption their settlement will be substantially equivalent to those who have agreed to the settlement.