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Acquisitions, Purchase Price Accounting and Pro forma Information -Acquisition of William Hill- Additional Information (Details) $ in Millions, £ in Billions |  | 3 Months Ended | 8 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Apr. 22, 2021 GBP (£) | Apr. 22, 2021 USD ($) | Dec. 31, 2021 USD ($) state sportsbook | Dec. 31, 2021 USD ($) state sportsbook | Dec. 31, 2021 USD ($) state sportsbook | Dec. 31, 2020 USD ($) | Sep. 08, 2021 GBP (£)
Business Acquisition [Line Items] |  |  |  |  |  |  |
Number of states gaming facilities are located | state |  |  | 16 | 16 | 16 |  |
Trademarks |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Finite-lived intangible asset, useful life |  |  |  |  | 15 years |  |
William Hill International |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Disposal group, consideration | £ |  |  |  |  |  |  | £ 2.2
Sports Wagering |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Number of states gaming facilities are located | state |  |  | 21 | 21 | 21 |  |
Online Real Money Gaming Businesses |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Number of states gaming facilities are located | state |  |  | 5 | 5 | 5 |  |
William Hill |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Cash consideration paid | £ 2.9 | $ 3,900 |  |  |  |  |
Number of sportsbooks | sportsbook |  |  | 37 | 37 | 37 |  |
Increase to other current assets |  |  | $ 4 |  |  |  |
Decrease to assets held for sale |  |  | 38 |  |  |  |
Increase to goodwill |  |  | (46) |  |  |  |
Other noncurrent assets |  | $ 317 | 10 | $ 10 | $ 10 |  |
Decrease to other current liabilities |  |  | 7 |  |  |  |
Increase to liabilities related to assets held for sale |  |  | 12 |  |  |  |
Increase to deferred income taxes |  |  | $ 17 |  |  |  |
Business acquisition, transaction costs |  |  |  |  | $ 68 | $ 8 |
Revenue since transaction |  |  |  | 183 |  |  |
Net income (loss) |  |  |  | $ (415) |  |  |
William Hill | Trademarks |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Finite-lived intangible asset, useful life |  |  |  |  | 15 years |  |
William Hill | Technology |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Finite-lived intangible asset, useful life |  |  |  |  | 6 years |  |
William Hill | User Relationship |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Finite-lived intangible asset, useful life |  |  |  |  | 3 years |  |
William Hill | Operating Agreements |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Finite-lived intangible asset, useful life |  |  |  |  | 20 years |  |
William Hill | Rights Value |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Finite-lived intangible asset, useful life |  |  |  |  | 24 years |  |
William Hill | Sports Wagering |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Number of states gaming facilities are located | state |  |  | 8 | 8 | 8 |  |

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