Contractual Commitments Contractual Commitments (Details) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Other Commitments [Line Items]
Self Insurance Reserve		$ 185
Deferred compensation liability	$ 46
Trust for Benefit of Employees [Member]
Other Commitments [Line Items]
Assets Held-in-trust	64
Escrow for Benefit of Employees [Member]
Other Commitments [Line Items]
Assets Held-in-trust	53
Caesars Entertainment Operating Company [Member]
Other Commitments [Line Items]
Other Deferred Compensation Arrangements, Liability, Classified, Noncurrent	27
Other Insurance Product Line [Member]
Other Commitments [Line Items]
Self Insurance Reserve	158
Health Insurance Product Line [Member]
Other Commitments [Line Items]
Self Insurance Reserve	15
Interest Expense [Member]
Other Commitments [Line Items]
Other Commitments, Future Minimum Payments, Remainder of Fiscal Year	212
Other Commitment, Due in Second Year	569
Other Commitment, Due in Third Year	567
Other Commitment, Due in Fourth Year	579
Other Commitment, Due in Fifth Year	588
Other Commitment, Due after Fifth Year	$ 803