Description of Business - Accrued Restructuring and Support Expenses (Details) - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016
Restructuring Cost and Reserve [Line Items]
Accrued restructuring and support expenses	$ 8,408	$ 6,601
CEOC
Restructuring Cost and Reserve [Line Items]
Accrued restructuring and support expenses	8,408	6,601
Payment of creditor expenses, settlement charges, and other fees	159	195
Payment to CEOC	0	35
CEOC | PropCo Call Right [Member]
Restructuring Cost and Reserve [Line Items]
Other Commitment	193	131
CEOC | Issuance of CEC Convertible Notes [Member]
Restructuring Cost and Reserve [Line Items]
Other Commitment	1,910	1,600
CEOC | Issuance of CEC common stock [Member]
Restructuring Cost and Reserve [Line Items]
Accrued restructuring and support expenses	4,383	2,936
CEOC | Forbearance fees and other payments to creditors [Member]
Restructuring Cost and Reserve [Line Items]
Accrued restructuring and support expenses	995	970
CEOC | Bank Guaranty Settlement [Member]
Restructuring Cost and Reserve [Line Items]
Accrued restructuring and support expenses	$ 768	$ 734