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Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($) $ in Millions	1 Months Ended			12 Months Ended
	Mar. 31, 2019	Aug. 31, 2018	Dec. 31, 2016	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Sep. 27, 2021
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Amortization expense related to intangible assets				$ 197	$ 194	$ 192
CityCenter Holdings, LLC
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Percentage of membership interest acquired							50.00%
License | Maryland
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Consideration paid for license fee			$ 22
Estimated useful life of intangible assets			15 years
License | Massachusetts
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Consideration paid for license fee		$ 85
Estimated useful life of intangible assets		15 years
MGM Grand Paradise | Extension Agreement
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Contract extension premium paid	$ 25
Contract extension fee paid	$ 2

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Contract extension fee paid.

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Finite lived and indefinite lived intangible assets.

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Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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The cash outflow to acquire asset without physical form usually arising from contractual or other legal rights, excluding goodwill.

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