Fair Value Measurements - Additional Information (Detail) $ in Millions	Mar. 31, 2015 USD ($)	Dec. 31, 2014 USD ($) interest_rate_swap_agreements
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 | interest_rate_swap_agreements		8
Derivative, Notional Amount		$ 5,800
Derivative Liability	$ 17	6
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Combination, Contingent Consideration, Liability		$ 66