Debt - Summary of Debt and Revolving Credit Facility Cash Flows from Financing Activities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Debt Instrument [Line Items]
Proceeds from the issuance of long-term debt	$ 310	$ 4,436	$ 6,039
Repayments of long-term debt and revolving credit facilities	(450)	(2,833)	$ (6,605)
Long-term Debt [Member]
Debt Instrument [Line Items]
Proceeds from the issuance of long-term debt	0	13
Repayments of long-term debt and revolving credit facilities	(25)	(189)
Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Proceeds from the issuance of long-term debt	0	0
Repayments of long-term debt and revolving credit facilities	(10)	(34)
Caesars Growth Partners, LLC [Member] | Senior Loans [Member]
Debt Instrument [Line Items]
Proceeds from the issuance of long-term debt	0	0
Repayments of long-term debt and revolving credit facilities	0	(495)
Caesars Entertainment Operating Company [Member] | Medium-term Notes [Member]
Debt Instrument [Line Items]
Proceeds from the issuance of long-term debt	0	1,528
Repayments of long-term debt and revolving credit facilities	0	(1,275)
Term Loan [Member] | Caesars Entertainment Resort Properties [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Proceeds from the issuance of long-term debt	0	0
Repayments of long-term debt and revolving credit facilities	(25)	(25)
Revolving Credit Facility [Member] | Caesars Entertainment Resort Properties [Member] | Line of Credit [Member]
Debt Instrument [Line Items]
Proceeds from the issuance of long-term debt	230	295
Repayments of long-term debt and revolving credit facilities	(330)	(115)
Variable Interest Entity, Primary Beneficiary [Member] | Term Loan [Member] | Caesars Growth Partners, LLC [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Proceeds from the issuance of long-term debt	0	1,141
Repayments of long-term debt and revolving credit facilities	(12)	0
Variable Interest Entity, Primary Beneficiary [Member] | First Closing Term Loan [Member] | Caesars Growth Partners, LLC [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Proceeds from the issuance of long-term debt	0	693
Repayments of long-term debt and revolving credit facilities	0	(700)
Variable Interest Entity, Primary Beneficiary [Member] | Revolving Credit Facility [Member] | Caesars Growth Partners, LLC [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Proceeds from the issuance of long-term debt	80	0
Repayments of long-term debt and revolving credit facilities	(35)	0
Variable Interest Entity, Primary Beneficiary [Member] | CGPH Notes [Member] | Caesars Growth Partners, LLC [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Proceeds from the issuance of long-term debt	0	660
Repayments of long-term debt and revolving credit facilities	0	0
Variable Interest Entity, Primary Beneficiary [Member] | Horseshoe Baltimore Credit Facility [Member] | Caesars Growth Partners, LLC [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Proceeds from the issuance of long-term debt	0	76
Repayments of long-term debt and revolving credit facilities	0	0
Variable Interest Entity, Primary Beneficiary [Member] | Horseshoe Baltimore FF&E Facility [Member] | Caesars Growth Partners, LLC [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Proceeds from the issuance of long-term debt	0	30
Repayments of long-term debt and revolving credit facilities	(3)	0
Variable Interest Entity, Primary Beneficiary [Member] | Cromwell Credit Facility [Member] | Caesars Growth Partners, LLC [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Proceeds from the issuance of long-term debt	0	0
Repayments of long-term debt and revolving credit facilities	$ (10)	$ 0