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Revenue Recognition - Summary of Accounts Receivable and Allowance for Doubtful Accounts (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disaggregation of Revenue [Line Items] |  |  |
Accounts receivable, net | $ 472 | $ 342 |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Allowance for doubtful accounts, beginning balance | 138 | 5 | $ 4
Former caesars consolidation |  | 130 |
Provision for doubtful accounts | 26 | 29 | 1
Write-offs less recoveries | (34) | (26) | 0
Allowance for doubtful accounts, ending balance | 130 | 138 | 5
Contracts |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Allowance for doubtful accounts, beginning balance | 120 | 4 | 2
Former caesars consolidation |  | 95 |
Provision for doubtful accounts | 16 | 18 | 1
Write-offs less recoveries | (26) | 3 | 1
Allowance for doubtful accounts, ending balance | 110 | 120 | 4
Other |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Allowance for doubtful accounts, beginning balance | 18 | 1 | 2
Former caesars consolidation |  | 35 |
Provision for doubtful accounts | 10 | 11 | 0
Write-offs less recoveries | (8) | (29) | (1)
Allowance for doubtful accounts, ending balance | 20 | 18 | $ 1
Casino and pari-mutuel commissions |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Contract receivable | 168 | 137 |
Food and beverage and hotel |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Contract receivable | 100 | 25 |
Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Contract receivable | $ 204 | $ 180 |

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