Percentage of participation.

No definition available.

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- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable to insurance entities to mitigate potential loss from various risks or to satisfy a promise to provide certain coverage's to employees.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Balance Type:	credit
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- Definition

Carrying amount as of the balance sheet date of amounts expected to be recovered under the terms of insurance contracts.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Balance Type:	debit
Period Type:	instant

- Definition

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
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Balance Type:	credit
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- Definition

Describe the approximate term of the guarantee or each group of similar guarantees.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)(1)
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- Definition

Amount due in settlement of a claim for reimbursement from an insurance company when the Company has suffered a loss covered under an insurance policy.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount needed to reflect the estimated ultimate cost of settling claims relating to insured events that have occurred on or before the balance sheet date, whether or not reported to the insurer at that date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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-Paragraph 1
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Details

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Commitments and Contingencies - Additional Information (Detail) - USD ($)	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019	May 31, 2019
Loss Contingencies [Line Items]
Insurance coverage available to fund litigation liabilities	$ 751,000,000	$ 751,000,000
Percentage of participation to increase the amount for settlement by certain categories of claimants	100.00%
Accrued insurance liability	$ 735,000,000	735,000,000
Insurance receivable	735,000,000	$ 735,000,000
MGM Grand Paradise SA [Member] \| Extension Agreement [Member]
Loss Contingencies [Line Items]
Bank guarantee			$ 102,000,000
Guarantee term		In connection with the Extension Agreement, MGM Grand Paradise provided a bank guarantee in an amount of approximately $102 million to the government of Macau in May 2019 to warrant the fulfillment of labor debts upon the expiration of the Extension Agreement in June 2022
MGP Senior Credit Facility [Member]
Loss Contingencies [Line Items]
Credit facility outstanding	0	$ 0
Senior Credit Facility [Member]
Loss Contingencies [Line Items]
Credit facility outstanding	11,000,000	11,000,000
Letters of credit [Member] \| MGP Senior Credit Facility [Member]
Loss Contingencies [Line Items]
Line of credit facility	75,000,000	75,000,000
Letters of credit [Member] \| Senior Credit Facility [Member]
Loss Contingencies [Line Items]
Line of credit facility	250,000,000	250,000,000
Minimum [Member]
Loss Contingencies [Line Items]
Estimated amount for settlement to Claimants	735,000,000	735,000,000
Maximum [Member]
Loss Contingencies [Line Items]
Estimated amount for settlement to Claimants	$ 800,000,000	$ 800,000,000