Organization Organization (Details) $ in Millions		1 Months Ended	3 Months Ended			9 Months Ended		36 Months Ended
	Jan. 15, 2015 USD ($)	Feb. 29, 2016 USD ($)	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($) business Casinos	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) business Casinos segment	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Number of Reportable Segments | segment						3
Net income/(loss) attributable to Caesars				$ (791)	$ (908)	$ 5,998	$ (1,761)	$ (7,200)
Interest Expense				147	708	531	1,954	7,000
Accumulated Deficit				7,100		7,100		13,100
Long-term Debt				6,977		6,977		23,009
Long-term Debt, Current Maturities				189		189		15,779
Cash flows provided by/(used in) operating activities						250	(422)	(772)
Cash paid for interest						480	1,552	5,700
Notes Payable, Related Parties, Current				35		35
Deconsolidation and restructuring of CEOC and other						7,100
Cash and cash equivalents				1,609	$ 3,182	1,609	$ 3,182	2,806	$ 2,771
Business Restructuring Reserves [Member]
Other Restructuring Costs				75
Convertible Debt [Member]
Other Commitment				450		$ 450
Nonoperating Income (Expense) [Member] | Caesars Entertainment Operating Company [Member] | Other Restructuring [Member]
Restructuring Costs				406
Other Restructuring Costs				138
Payments for Restructuring				63
Restructuring Charges				966
Payment Guarantee [Member] | Nonoperating Income (Expense) [Member] | Caesars Entertainment Operating Company [Member] | Other Restructuring [Member]
Restructuring Charges				$ 359
Subsequent Event [Member] | Nonoperating Income (Expense) [Member] | Caesars Entertainment Operating Company [Member] | Other Restructuring [Member]
Other Restructuring Costs		$ 25
Payments for Restructuring			$ 85
Subsequent Event [Member] | Restructuring Charges [Member] | Caesars Entertainment Operating Company [Member] | Other Restructuring [Member]
Payments for Restructuring			$ 57
Caesars Entertainment Operating Company [Member]
Number Of Casinos Managed | business				28		28
Net income/(loss) attributable to Caesars	$ (76)							(7,100)
Interest Expense								6,200
Accumulated Deficit								11,400
Long-term Debt								16,007
Long-term Debt, Current Maturities								15,800
Long Term Debt, less Discount				$ 0		$ 0		15,930
Cash flows provided by/(used in) operating activities	$ (220)
Third Party [Member]
Number Of Casinos Managed | Casinos				10		10
Parent Company [Member]
Long-term Debt				$ 0		$ 0		$ 13
Cash and cash equivalents				349		349
Affiliated Entity [Member] | Business Restructuring Reserves [Member]
Other Commitment				$ 700		$ 700
Majority-Owned Subsidiary, Unconsolidated [Member] | Business Restructuring Reserves [Member]
Equity Method Investment, Ownership Percentage				14.80%		14.80%
Other Commitment				$ 269		$ 269
UNITED STATES
Number Of Casinos Operated Or Managed | Casinos				12		12
Indian Land [Member] | Third Party [Member]
Number Of Casinos Managed | Casinos				4		4
LAS VEGAS, NEVADA | Geographic Concentration Risk [Member] | UNITED STATES
Number Of Casinos Operated Or Managed | Casinos				8		8
LAS VEGAS, NEVADA | Geographic Concentration Risk [Member] | Sales Revenue, Net [Member] | UNITED STATES
Concentration Risk, Percentage				53.00%		52.00%