Revenue Recognition Revenue Recognition - Effect of Adopting New Revenue Recognition Standard (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017		Dec. 31, 2016
Receivables, net		$ 439		$ 494
Property and equipment, net		15,975		16,154	[1]
Accrued expenses and other current liabilities (2)		1,163		1,326	[2]
Current portion of contract liabilities		143		129	[2]
Contract liabilities		7		2
Financing obligations		9,388		9,355	[1]
Deferred credits and other liabilities		1,331		1,472
Net revenues		1,972	$ 966
Total operating expenses		1,847	816
Income/(loss) from operations		125	150
Net income/(loss)		(34)	(508)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest		$ 3,302	(2,111)	3,297		$ (1,606)
Adjustments for New Accounting Pronouncement [Member]
Receivables, net				(2)
Property and equipment, net	[1]			(74)
Accrued expenses and other current liabilities (2)	[2]			(133)
Current portion of contract liabilities	[2]			129
Contract liabilities				2
Financing obligations	[1]			(74)
Deferred credits and other liabilities				(1)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest				1		3
Scenario, Previously Reported [Member]
Receivables, net				496
Property and equipment, net	[1]			16,228
Accrued expenses and other current liabilities (2)	[2]			1,459
Current portion of contract liabilities	[2]			0
Contract liabilities				0
Financing obligations	[1]			9,429
Deferred credits and other liabilities				1,473
Net revenues			963
Total operating expenses			814
Income/(loss) from operations			149
Net income/(loss)			(508)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest				$ 3,296		$ (1,609)
Scenario, Previously Reported [Member] | Consolidation, Eliminations [Member]
Net revenues			0
Total operating expenses			0
Income/(loss) from operations			0
Net income/(loss)			14
Scenario, Previously Reported [Member] | Caesars Entertainment Corporation [Member]
Net revenues			963
Total operating expenses			805
Income/(loss) from operations			158
Net income/(loss)			(524)
Scenario, Previously Reported [Member] | Caesars Acquisition Company [Member]
Net revenues			0
Total operating expenses			9
Income/(loss) from operations			(9)
Net income/(loss)			$ 2

[1] The conditions that were considered prohibited forms of continuing involvement related to our sale of the Golf Course Properties (see Note 7) are no longer considered continuing involvement under the new revenue recognition standard. As of result of adopting the new standard on full retrospective basis, we are now reflecting this transaction as a completed sale in the period in which it occurred.

[2] Adjustments are primarily related to the reclassification of assets and liabilities to in accordance with the new accounting and disclosure requirements.