Debt - Additional Information (Details)		3 Months Ended	12 Months Ended
		Dec. 31, 2015 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($) business
Debt Instrument [Line Items]
Long-term Debt, Current Maturities		$ 187,000,000	$ 187,000,000	$ 15,779,000,000
Long-term Debt, Gross		7,096,000,000	7,096,000,000
Unamortized discounts		132,000,000	132,000,000	2,600,000,000
Unamortized Debt Issuance Expense				204,000,000
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders			10,000,000	160,000,000	[1]
Amount of Restricted Net Assets for Consolidated and Unconsolidated Subsidiaries		2,100,000,000	2,100,000,000	2,400,000,000
Unsecured Debt [Member]
Debt Instrument [Line Items]
Early Repayment of Senior Debt				78,000,000
Debt Conversion, Original Debt, Amount				427,000,000
Debt Conversion, Converted Instrument, Amount				368,000,000
Caesars Entertainment Resort Properties [Member]
Debt Instrument [Line Items]
Long-term Debt, Current Maturities		117,000,000	117,000,000	39,000,000
Long-term Debt, Gross		4,694,000,000	4,694,000,000
Revolver capacity		270,000,000	270,000,000
Line of Credit Facility, Fair Value of Amount Outstanding		80,000,000	80,000,000
Caesars Entertainment Resort Properties [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment		6,000,000
Caesars Growth Partners, LLC [Member]
Debt Instrument [Line Items]
Revolver capacity		160,000,000	160,000,000
Line of Credit Facility, Fair Value of Amount Outstanding		45,000,000	45,000,000
Caesars Entertainment Operating Company [Member]
Debt Instrument [Line Items]
Long-term Debt, Current Maturities				15,700,000,000
Long-term Debt, Gross	[2]	0	0
Unamortized discounts				2,200,000,000
Caesars Entertainment Operating Company [Member] | Line of Credit [Member]
Debt Instrument [Line Items]
Repayments of Debt				794,000,000
Caesars Entertainment Operating Company [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Repayments of Debt				191,000,000
Debt Instrument, Repurchased Face Amount				83,000,000
Caesars Entertainment Operating Company [Member] | Unsecured Debt [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross				238,000,000
Early Repayment of Senior Debt				78,000,000
Caesars Acquisition Company [Member]
Debt Instrument [Line Items]
Unamortized discounts		129,000,000	129,000,000
Caesars Acquisition Company [Member] | Unsecured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount		289,000,000	289,000,000
Revolving Credit Facility [Member] | Caesars Entertainment Resort Properties [Member] | Line of Credit [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	[3]	80,000,000	80,000,000
Letters of Credit Outstanding, Amount		0	0
Revolving Credit Facility [Member] | Caesars Entertainment Operating Company [Member] | Line of Credit [Member]
Debt Instrument [Line Items]
Revolver capacity				106,000,000
Line of Credit Facility, Fair Value of Amount Outstanding				0
Twenty-Fifteen Note at Ten Percent [Member] | Caesars Entertainment Operating Company [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Repayments of Debt				18,000,000
Debt Instrument, Repurchased Face Amount				190,000,000
Term Loan B Seven [Member] | Caesars Entertainment Operating Company [Member] | Line of Credit [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount				1,800,000,000
Unsecured Senior Debt Five Point Six Two Five Percent [Member] | Caesars Entertainment Operating Company [Member] | Unsecured Debt [Member]
Debt Instrument [Line Items]
Repayments of Debt				830,000,000
Debt Instrument, Repurchased Face Amount				792,000,000
Unsecured Senior Debt Six Point Five Percent [Member] | Caesars Entertainment Operating Company [Member] | Unsecured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount				89,000,000
Unsecured Senior Debt Five Point Seven Five Percent [Member] | Caesars Entertainment Operating Company [Member] | Unsecured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount				66,000,000
Variable Interest Entity, Primary Beneficiary [Member]
Debt Instrument [Line Items]
Long-term Debt, Current Maturities		70,000,000	70,000,000	20,000,000
Variable Interest Entity, Primary Beneficiary [Member] | Caesars Growth Partners, LLC [Member]
Debt Instrument [Line Items]
Long-term Debt, Current Maturities		70,000,000	70,000,000	20,000,000
Long-term Debt, Gross		2,402,000,000	2,402,000,000
Variable Interest Entity, Primary Beneficiary [Member] | Caesars Growth Partners, LLC [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Repayments of Debt				477,000,000
Variable Interest Entity, Primary Beneficiary [Member] | Revolving Credit Facility [Member] | Caesars Growth Partners, LLC [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	[4]	45,000,000	45,000,000
Revolver capacity				150,000,000
Letters of Credit Outstanding, Amount		0	0
Variable Interest Entity, Primary Beneficiary [Member] | Horseshoe Baltimore Credit Facility [Member] | Caesars Growth Partners, LLC [Member] | Line of Credit [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	[5]	0	0
Revolver capacity		10,000,000	10,000,000
Variable Interest Entity, Primary Beneficiary [Member] | Horseshoe Baltimore Credit Facility [Member] | Caesars Growth Partners, LLC [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	[6]	300,000,000	300,000,000
Cash Tender Offer [Member] | Twenty-Fifteen Note at Ten Percent [Member] | Caesars Entertainment Operating Company [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Repurchase Amount				103,000,000
Cash Tender Offer [Member] | Unsecured Senior Debt Five Point Six Two Five Percent [Member] | Caesars Entertainment Operating Company [Member] | Unsecured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Repurchase Amount				44,000,000
Note Repurchase and Redemption [Member] | Unsecured Senior Debt Five Point Six Two Five Percent [Member] | Caesars Entertainment Operating Company [Member] | Unsecured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Repurchased Face Amount				747,000,000
Unsecured Senior Debt Five Point Seven Five Percent [Member] | Caesars Entertainment Operating Company [Member] | Unsecured Debt [Member]
Debt Instrument [Line Items]
Cash Dividends Paid to Parent Company by Consolidated Subsidiaries				206,000,000
Payments of Distributions to Affiliates				151,000,000
Unsecured Senior Debt Six Point Five Percent [Member] | Caesars Entertainment Operating Company [Member] | Unsecured Debt [Member]
Debt Instrument [Line Items]
Cash Dividends Paid to Parent Company by Consolidated Subsidiaries				187,000,000
Payments of Distributions to Affiliates				138,000,000
Noncontrolling Interest [Member]
Debt Instrument [Line Items]
Unamortized discounts		$ 89,000,000	89,000,000
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders			10,000,000	$ 160,000,000	[1]
Noncontrolling Interest [Member] | Caesars Entertainment Operating Company [Member]
Debt Instrument [Line Items]
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders			$ 160,000,000
Caesars Entertainment Operating Company [Member] | Caesars Growth Partners, LLC [Member]
Debt Instrument [Line Items]
Number of Businesses Acquired | business				4

[1] See Note 2.

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

[3] Variable interest rate for amounts currently borrowed is calculated by adding LIBOR to a base rate of 6.00%.

[4] Variable interest rate calculated as LIBOR plus 5.25%.

[5] Variable interest rate calculated as LIBOR plus 7.00%.

[6] Variable interest rate calculated as a fixed rate plus the greater of LIBOR or a 1.25% floor. The rate is set at the 1.25% floor as of December 31, 2015.