Litigation - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Dec. 31, 2016
Loss Contingencies [Line Items]
Loss Contingency, Management's Assessment and Process		Caesars is party to other ordinary and routine litigation incidental to our business. We do not expect the outcome of any such litigation to have a material effect on our consolidated financial position, results of operations, or cash flows, as we do not believe it is reasonably possible that we will incur material losses as a result of such litigation.
Settled Litigation [Member] | National Retirement Fund Lawsuit [Member]
Loss Contingencies [Line Items]
Loss Contingency, Actions Taken by Court, Arbitrator or Mediator		As previously reported in more detail in our 2016 Annual Report and in our Form 10-Q for the quarter ended June 30, 2017, the five indirect subsidiaries of CEC which were required to make contributions to the National Retirement Fund’s (“NRF’s”) legacy plan (the “Five Employers”) and the members of the Five Employers’ controlled group (the “CEC Controlled Group”) have been engaged in a number of actions, proceedings and appeals with the NRF, its fund manager, and its board of trustees (the “NRF Litigations”) arising out of the January 2015 vote of a majority of the NRF’s trustees to expel the Five Employers from the NRF’s legacy plan. Pursuant to the NRF Settlement Agreement (as defined below), each of the NRF Litigations was dismissed with prejudice after the Effective Date of the Debtors’ reorganization pursuant to the Plan on October 6, 2017. On March 13, 2017, CEC, CERP, CEOC (on behalf of itself and each of the Debtors and its other direct and indirect subsidiaries), the Five Employers, the NRF, the NRF’s legacy plan, the NRF’s trustees, and others entered into a Settlement Agreement (the “NRF Settlement Agreement”). Under the NRF Settlement Agreement, on the Effective Date, CEC would pay $45 million to the NRF (the “NRF Payments”). On the Effective Date, the NRF Payments were made to the NRF and thus the mutual releases between the CEC-affiliated parties and the NRF-affiliated parties to the NRF Settlement Agreement became effective. Promptly after the Effective Date, each of the actions, proceedings and appeals relating to the NRF Litigations was dismissed with prejudice.
Litigation Settlement, Amount Awarded to Other Party		$ 45.0
Loss Contingency Accrual		$ 30.0	$ 30.0
Settled Litigation [Member] | Anti-Money Laundering Case [Member]
Loss Contingencies [Line Items]
Loss Contingency, Allegations		In recent years, governmental authorities have been increasingly focused on anti-money laundering (“AML”) policies and procedures, with a particular focus on the gaming industry. In October 2013, CEOC’s subsidiary, Desert Palace, Inc. (the owner of and referred to herein as Caesars Palace, and which is now known as Desert Palace, LLC as of the Effective Date), received a letter from the Financial Crimes Enforcement Network of the United States Department of the Treasury (“FinCEN”), stating that FinCEN was investigating Caesars Palace for alleged violations of the Bank Secrecy Act to determine whether it is appropriate to assess a civil penalty and/or take additional enforcement action against Caesars Palace. Additionally, we were informed in October 2013 that a federal grand jury investigation regarding anti-money laundering practices of the Company and its subsidiaries had been initiated. In September 2015, FinCEN announced a settlement with Caesars Palace, and CEOC and the Nevada Gaming Control Board reached a settlement on the same facts as above.
Settled Litigation [Member] | CEOC | Hilton Matter [Member]
Loss Contingencies [Line Items]
Bankruptcy Claims, Amount of Claims Filed		$ 51.0
Loss Contingency, Receivable, Additions		$ 24.5
Loss Contingency, Settlement Agreement, Terms		On June 9, 2016, CEC, CEOC and the Hilton Parties entered into a settlement of the Hilton Parties’ claims (the “Settlement Agreement”). Under the settlement, Hilton will receive a general unsecured claim in CEOC’s bankruptcy case for an amount equal to $51 million plus 31.75% of amounts paid by Hilton to the Hilton Plan due after July 16, 2016. For periods following the effective date of CEOC’s plan of reorganization, CEC shall assume certain of CEOC’s obligations under the Allocation Agreement. In exchange, Hilton shall turn over to CEC the distributions on account of $24.5 million of Hilton’s claim in the CEOC bankruptcy. On June 21, 2016, the parties sought approval of the Settlement Agreement. The CEOC Bankruptcy Court approved the Settlement Agreement on July 19, 2016. The settlement amount is fully accrued in liabilities subject to compromise at CEOC, and the Settlement Agreement is subject to the effectiveness of CEOC’s plan of reorganization.
Judicial Ruling [Member] | Noteholder Disputes [Member]
Loss Contingencies [Line Items]
Loss Contingency, Actions Taken by Court, Arbitrator or Mediator		As set forth in detail in our 2016 Annual Report and in our Form 10-Q for the quarter ended June 30, 2017, beginning in 2014, CEC was party to a number of lawsuits (the “Noteholder Lawsuits”) relating to the enforceability of certain CEC financial guarantees of CEOC debt obligations. More specifically, seven lawsuits were filed by certain secured or unsecured creditors against CEC (originally also against others) in federal and state courts in New York and Delaware, and one lawsuit was initiated by CEC against certain creditors in New York state court, each seeking judicial determinations of CEC’s liability, if any, for its refusal to pay creditors under various parental guarantees that supported particular CEOC indebtedness. In October 2017, following the Effective Date, each of these Noteholder Lawsuits was dismissed, with prejudice.
Subsequent Event [Member] | Settled Litigation [Member] | CEOC | Hilton Matter [Member]
Loss Contingencies [Line Items]
Gain (Loss) Related to Litigation Settlement	$ 12.0