Debt Debt - CEOC (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Long-term Debt	$ 7,062	$ 23,213
Caesars Entertainment Operating Company [Member]
Long-term Debt		16,177
Debt Instrument - Additional Unamortized Discount		(77)
Long Term Debt, less Discount	0	16,100
Caesars Entertainment Operating Company [Member] | Line of Credit [Member]
Long-term Debt		5,162	[1]
Caesars Entertainment Operating Company [Member] | Secured Debt [Member]
Long-term Debt		9,996
Caesars Entertainment Operating Company [Member] | Subsidiary Guarantors Of Parent And Subsidiary Guaranteed Debt [Member]
Long-term Debt		479
Caesars Entertainment Operating Company [Member] | Unsecured Debt [Member]
Long-term Debt		463
Caesars Entertainment Operating Company [Member] | Long-term Debt, Other [Member]
Long-term Debt		$ 77

[1] Caesars Entertainment guarantees collection of amounts under the CEOC Credit Facilities (see Note 11).