Description of Business - Accrued Restructuring and Support Expenses (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Restructuring Cost and Reserve [Line Items]
Accrued restructuring and support expenses	$ 8,776	$ 6,601
CEOC
Restructuring Cost and Reserve [Line Items]
Accrued restructuring and support expenses	8,776	6,601
Payment of creditor expenses, settlement charges, and other fees	182	195
Payment to CEOC	0	35
CEOC | PropCo Call Right [Member]
Restructuring Cost and Reserve [Line Items]
Other Commitment	189	131
CEOC | Issuance of CEC Convertible Notes [Member]
Restructuring Cost and Reserve [Line Items]
Other Commitment	2,240	1,600
CEOC | Issuance of CEC common stock [Member]
Restructuring Cost and Reserve [Line Items]
Accrued restructuring and support expenses	4,507	2,936
CEOC | Forbearance fees and other payments to creditors [Member]
Restructuring Cost and Reserve [Line Items]
Accrued restructuring and support expenses	893	970
CEOC | Bank Guaranty Settlement [Member]
Restructuring Cost and Reserve [Line Items]
Accrued restructuring and support expenses	$ 765	$ 734