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Basis of Presentation and Significant Accounting Policies - Additional Information (Detail) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Total assets | $ 40,899,116,000 | $ 36,494,934,000 |
Investments in and advances to unconsolidated affiliates | $ 967,044,000 | 1,447,043,000 |
Percentage of ownership interest | 100.00% |  |
Impairment charges | $ 0 | 0 | $ 0
Advertising expense | 121,000,000 | 88,000,000 | 195,000,000
Equity securities, FV-NI, current | 66,000,000 |  |
Food and Beverage Revenue |  |  |
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Lease revenue | 43,000,000 | 24,000,000 | 53,000,000
Entertainment Retail and Other Revenue |  |  |
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Lease revenue | $ 85,000,000 | $ 60,000,000 | $ 89,000,000
Accounts Receivable | Customer Concentration | Asia |  |  |
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Percentage of gross casino accounts receivable | 43.00% | 52.00% |
Bellagio Blackstone Real Estate Income Trust |  |  |
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Percentage of ownership interest | 5.00% |  |
Investments in and advances to unconsolidated affiliates | $ 58,000,000 |  |
MGM Growth Properties LLC |  |  |
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Total assets | 10,400,000,000 |  |
Total liabilities | $ 5,100,000,000 |  |

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