Fair Value Measurements - Additional Information (Detail) $ in Millions	3 Months Ended	9 Months Ended
	Mar. 31, 2015 USD ($) count	Sep. 30, 2016 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Description of Objectives, Methodology, and Limitations		Should CEC’s estimated incremental cost of borrowing or equity value fluctuate over time, it could result in an increase or decrease in the fair value of the notes and the corresponding restructuring accrual. A hypothetical decrease in the incremental borrowing rate of 1.0% would result in a $40 million increase in the restructuring accrual. Similarly, a hypothetical 5.0% increase in the implied volatility of CEC’s equity would result in an increase to the restructuring accrual of $30 million. Since the key assumptions used in the valuation model, including CEC’s current estimated incremental cost of borrowing and the implied volatility of CEC’s equity, are significant unobservable inputs, the fair value for the convertible notes is classified as Level 3.
Unrecorded Unconditional Purchase Obligation		$ 200
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ 7
Caesars Entertainment Operating Company [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative, Number of Instruments Held | count	8
Derivative, Notional Amount	$ 17
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Assumptions, Expected Term		7 years
Convertible Debt [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Instrument, Face Amount		$ 1,100
Debt Instrument, Interest Rate, Stated Percentage		5.00%
Debt Instrument, Convertible, Conversion Ratio		0.13714
Debt Conversion, Converted Instrument, Rate		5.00%
Fair Value Assumptions, Expected Volatility Rate		40.00%
Fair Value Assumptions, Risk Free Interest Rate		1.40%
Common Stock [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recorded Unconditional Purchase Obligation		$ 1,000
Common Stock [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Assumptions, Expected Volatility Rate		80.00%
Fair Value Assumptions, Risk Free Interest Rate		0.20%
Estimate of Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restructuring Settlement Issued in Common Stock, Fair Value Disclosure		$ 1,741
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Description of Objectives, Methodology, and Limitations		Should CEC’s equity value fluctuate over time, it could result in an increase or decrease in the fair value of the repurchase obligation and the corresponding restructuring accrual. A hypothetical 5.0% increase in the historical volatility of CEC’s equity would result in an increase to the restructuring accrual of $2 million. Since the historical volatility of CEC’s equity is a significant unobservable input, the fair value for the convertible notes is classified as Level 3.
Restructuring Settlement Issued in Common Stock, Fair Value Disclosure		$ 29