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Acquisitions, Purchase Price Accounting and Pro forma Information - Merger with Caesars Entertainment Corporation-Additional Information (Details) - USD ($) $ in Millions		5 Months Ended	12 Months Ended
	Jul. 20, 2020	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Gaming rights and others
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life			34 years
Maximum | Customer relationships
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life			7 years
Maximum | Gaming rights and others
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life			34 years
Caesars Entertainment Corporation
Business Acquisition [Line Items]
William Hill Acquisition	$ 10,875
Business acquisition, transaction costs			$ 30	$ 160	$ 80
Net revenues		$ 2,100		5,926	10,534
Net income (loss)		$ 1,200		$ 2,738	$ 1,069

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