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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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