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Assets and Liabilities Held for Sale - Additional information (Details) £ in Millions, $ in Millions |  |  |  |  |  |  | 12 Months Ended |  |  |  |
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Sep. 03, 2021 USD ($) | Jul. 16, 2021 USD ($) | Jun. 03, 2021 USD ($) | Apr. 06, 2021 USD ($) | Dec. 23, 2020 USD ($) | Jul. 01, 2020 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2021 GBP (£) | Sep. 08, 2021 GBP (£) | Dec. 24, 2020 USD ($) | Sep. 03, 2020 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Impairment charges |  |  |  |  |  |  | $ 102 | $ 215 | $ 1 |  |  |  |
Assets held for sale ($0 and $130 attributable to our VIEs) |  |  |  |  |  |  | $ 3,771 | 1,583 |  |  |  |  |
Interest rate (as a percent) |  |  |  |  |  |  | 4.30% |  |  | 4.30% |  |  |
Baton Rouge |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Impairment charges |  |  |  |  |  |  |  | 50 |  |  |  |  |
Presque |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on sale |  |  |  |  |  |  |  |  | 22 |  |  |  |
Mountaineer, Caruthersville and Cape Girardea |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on sale |  |  |  |  |  |  |  |  | 29 |  |  |  |
Vicksburg and Kansas City |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate consideration subject to working capital adjustments |  |  |  |  |  | $ 230 |  |  |  |  |  |  |
Evansville |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Loss from equity method investment |  |  | $ 12 |  |  |  |  |  |  |  |  |  |
Disposal group, consideration |  |  | $ 480 |  |  |  |  |  |  |  |  |  |
MontBleu |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Impairment charges |  |  |  |  |  |  |  | 45 |  |  |  |  |
Aggregate consideration subject to working capital adjustments |  |  |  | $ 15 |  |  |  |  |  |  |  |  |
Loss from equity method investment |  |  |  | $ 1 |  |  |  |  |  |  |  |  |
Harrah’s Louisiana Downs |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Disposal group, consideration |  |  |  |  |  |  |  |  |  |  |  |  | $ 22
Caesars Southern Indiana |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on sale | $ 12 |  |  |  |  |  |  |  |  |  |  |  |
Disposal group, consideration |  |  |  |  |  |  |  |  |  |  |  | $ 250 |
Reduction in annual lease payments for disposal of business | $ 33 |  |  |  |  |  |  |  |  |  |  |  |
Caesars UK Group |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Impairment charges |  | $ 14 |  |  |  |  |  |  |  |  |  |  |
William Hill International |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Disposal group, consideration | £ |  |  |  |  |  |  |  |  |  |  | £ 2,200 |  |
Eastern Band of Cherokee Indians (“EBCI”) |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Licensing agreement, term | 10 years |  |  |  |  |  |  |  |  |  |  |  |
Nemacolin |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on sale |  |  |  |  |  |  |  |  | $ 1 |  |  |  |
Vicksburg and Kansas City to Twin River |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on sale |  |  |  |  |  | $ 8 |  |  |  |  |  |  |
Shreveport |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on sale |  |  |  |  | $ 29 |  |  |  |  |  |  |  |
Aggregate consideration subject to working capital adjustments |  |  |  |  | $ 140 |  |  |  |  |  |  |  |
Disposal Group, Held-for-sale, Not Discontinued Operations | Baton Rouge |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Assets held for sale ($0 and $130 attributable to our VIEs) |  |  |  |  |  |  | $ 6 | 5 |  |  |  |  |
Liabilities related to assets held for sale |  |  |  |  |  |  | 4 | 3 |  |  |  |  |
Disposal Group, Held-for-sale, Not Discontinued Operations | Evansville |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Assets held for sale ($0 and $130 attributable to our VIEs) |  |  |  |  |  |  |  | 505 |  |  |  |  |
Liabilities related to assets held for sale |  |  |  |  |  |  |  | 36 |  |  |  |  |
Disposal Group, Held-for-sale, Not Discontinued Operations | MontBleu |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Assets held for sale ($0 and $130 attributable to our VIEs) |  |  |  |  |  |  |  | 72 |  |  |  |  |
Liabilities related to assets held for sale |  |  |  |  |  |  |  | 71 |  |  |  |  |
Disposal Group, Held-for-sale, Not Discontinued Operations | Harrah’s Louisiana Downs |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Assets held for sale ($0 and $130 attributable to our VIEs) |  |  |  |  |  |  |  | 25 |  |  |  |  |
Liabilities related to assets held for sale |  |  |  |  |  |  |  | 12 |  |  |  |  |
Disposal Group, Held-for-sale, Not Discontinued Operations | Caesars Southern Indiana |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Assets held for sale ($0 and $130 attributable to our VIEs) |  |  |  |  |  |  |  | 589 |  |  |  |  |
Liabilities related to assets held for sale |  |  |  |  |  |  |  | 345 |  |  |  |  |
Disposal Group, Held-for-sale, Not Discontinued Operations | Caesars UK Group |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Assets held for sale ($0 and $130 attributable to our VIEs) |  |  |  |  |  |  |  | 255 |  |  |  |  |
Liabilities related to assets held for sale |  |  |  |  |  |  |  | $ 193 |  |  |  |  |
Disposal Group, Held-for-sale, Not Discontinued Operations | William Hill International |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Assets held for sale ($0 and $130 attributable to our VIEs) |  |  |  |  |  |  | 3,800 |  |  |  |  |  |
Liabilities related to assets held for sale |  |  |  |  |  |  | 2,700 |  |  |  |  |  |
Long-term debt, gross |  |  |  |  |  |  | 943 |  |  |  |  |  |
Disposal Group, Held-for-sale, Not Discontinued Operations | Asset Sale Bridge Facility |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Liabilities related to assets held for sale |  |  |  |  |  |  | $ 617 |  |  |  |  |  |
Maximum leverage ratio |  |  |  |  |  |  | 10.50 |  |  | 10.50 |  |  |
Disposal Group, Held-for-sale, Not Discontinued Operations | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate, effective percentage |  |  |  |  |  |  | 101.00% |  |  |  |  |  |
Debt instrument, repurchased face amount | £ |  |  |  |  |  |  |  |  |  | £ 1 |  |  |
Disposal Group, Held-for-sale, Not Discontinued Operations | Senior Notes Due 2026 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount | £ |  |  |  |  |  |  |  |  |  | £ 350 |  |  |
Interest rate (as a percent) |  |  |  |  |  |  | 4.75% |  |  | 4.75% |  |  |
Disposal Group, Held-for-sale, Not Discontinued Operations | Senior Notes Due 2023 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount | £ |  |  |  |  |  |  |  |  |  | £ 350 |  |  |
Interest rate (as a percent) |  |  |  |  |  |  | 4.875% |  |  | 4.875% |  |  |

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