Contractual Commitments Contractual Commitments (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2015	Jul. 31, 2015	Jul. 20, 2015	Dec. 31, 2014
Long Term Debt Interest Repayment Remainder of Year	$ 290
Long Term Debt Interest Repayments In Year Two	571
Long Term Debt Interest Repayments In Year Three	585
Long Term Debt Interest Repayments In Year Four	603
Long Term Debt Interest Repayments In Year Five	614
Long Term Debt Interest Repayments After Year Five	827
Self Insurance Reserve				$ 185
Deferred compensation liability	48
Assets Held-in-trust	66
Assets Held-in-trust, Noncurrent	$ 56
Commitments and contingencies (Note 11)
Notes Payable, Related Parties, Current	$ 35
Business Restructuring Reserves [Member]
Payments for Restructuring	406
Other Restructuring Costs	75
Other Commitment	969
Caesars Entertainment Operating Company [Member]
Other Deferred Compensation Arrangements, Liability, Classified, Noncurrent	28
Subsequent Event [Member]
Other Commitment			$ 200
Commitments and contingencies (Note 11)		$ 25	$ 200
Other Insurance Product Line [Member]
Self Insurance Reserve	164
Health Insurance Product Line [Member]
Self Insurance Reserve	$ 15
Minimum [Member] | Subsequent Event [Member]
Other Commitment		102
Maximum [Member] | Subsequent Event [Member]
Other Commitment		$ 561