Discontinued Operations Discontinued Operations - Additional Information (Details) - Social and Mobile Games [Member] - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Payments of Distributions to Affiliates		$ 235,000,000
Discontinued Operations, Disposed of by Sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Consideration			$ 4,400,000,000
Gain from discontinued operations		4,200,000,000
Escrow Deposit	$ 259,000,000	259,000,000
Discontinued Operations, Disposed of by Sale [Member] | Caesars Acquisition Company [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued Operation, Tax Effect of Gain (Loss) from Disposal of Discontinued Operation	259,000,000	285,000,000
Discontinued Operation, Tax Effect of Adjustment to Prior Period Gain (Loss) on Disposal	26,000,000
Discontinued Operations, Disposed of by Sale [Member] | Caesars Interactive Entertainment [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Payments of Distributions to Affiliates		1,100,000,000
Discontinued Operations, Disposed of by Sale [Member] | CGP
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income Taxes Paid	0	240,000,000
Disposal Group, Including Discontinued Operation, Accrued Liabilities	$ 63,000,000	$ 63,000,000