Business Combination - Additional Details (Details) shares in Millions, $ in Millions				3 Months Ended	6 Months Ended	12 Months Ended
		Jul. 16, 2018 USD ($)	Oct. 06, 2017 USD ($) shares	Dec. 31, 2017 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2018 USD ($) reportable_segment	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Business Acquisition [Line Items]
Receivables, net				$ 494	$ 457	$ 457	$ 494	$ 167
Goodwill	[1]			3,815	4,044	$ 4,044	3,815
Number of Reportable Segments | reportable_segment						3
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders						$ (20)	(3)	(5)
Conversion of Stock, Exchange Ratio			1.625
Stock Issued During Period, Shares, Other | shares			633
OpCo [Member]
Business Acquisition [Line Items]
Goodwill			$ 2,207
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities			568
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual				1,000
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual				52
Consideration Transferred			$ 2,474
Stock Issued During Period, Shares, Other | shares			139
Caesars Acquisition Company [Member]
Business Acquisition [Line Items]
Stock Issued During Period, Shares, Other | shares			226
Centaur Holdings, LLC [Member]
Business Acquisition [Line Items]
License Transfer Fee						50
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual					226
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual					49
Consideration Transferred		$ 1,702
Cash paid		$ 1,636
Business Combination, Acquisition Related Costs						8
Pro Forma [Member] | Centaur Holdings, LLC [Member]
Business Acquisition [Line Items]
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount							185
Noncontrolling Interest [Member]
Business Acquisition [Line Items]
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders			$ (13)			(20)	(3)	$ (5)
Loans Receivable [Member]
Business Acquisition [Line Items]
Receivables, net				$ 69	$ 25	$ 25	$ 69

[1] (2) $405 million of goodwill is associated with a reporting unit with zero or negative carrying value. As the reporting unit has a positive fair value, there was no impairment associated with this reporting unit.