Line Of Credit Facility, Maximum Borrowing Capacity, Increase

No definition available.

Name:	mgm_LineOfCreditFacilityMaximumBorrowingCapacityIncrease
Namespace Prefix:	mgm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

+ Details

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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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.

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- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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- Definition

Weighted average interest rate of debt outstanding.

+ References

No definition available.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Balance Type:	credit
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.

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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LONG-TERM DEBT - Additional Information (Details) $ in Millions	1 Months Ended					9 Months Ended
	Oct. 30, 2024 USD ($)	May 31, 2024 USD ($)	May 31, 2024 HKD ($)	Aug. 31, 2023 USD ($)	Mar. 31, 2023 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2024 HKD ($)	Jun. 30, 2024 USD ($)	Apr. 30, 2024 USD ($)	Feb. 29, 2024 USD ($)	Dec. 31, 2023 USD ($)
Debt Instrument [Line Items]
Redemption of debt						$ 1,500,000,000	$ 1,285,600,000
Long-term debt, fair value						$ 6,900,000,000						$ 6,300,000,000
5.25% MGM China senior notes, due 2025
Debt Instrument [Line Items]
Long-term debt, interest rate (in percent)						5.25%		5.25%
Senior secured credit facility \| Line of Credit
Debt Instrument [Line Items]
Line of credit facility											$ 2,300,000,000
Line of credit facility drawn						$ 0
MGM China first revolving credit facility \| Line of Credit \| Unsecured Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit facility						$ 1,300,000,000		$ 9,750
Debt instrument, weighted average interest rate (in percent)						6.82%		6.82%
MGM China second revolving credit facility \| Line of Credit \| Unsecured Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit facility			$ 5,850			$ 753,000,000		$ 5,850
Line of credit facility drawn						$ 0
Line of credit facility, maximum borrowing capacity, increase		$ 161,000,000	$ 1,260
6.125% senior notes, due 2029
Debt Instrument [Line Items]
Long-term debt, interest rate (in percent)						6.125%		6.125%
6.125% senior notes, due 2029 \| Senior Notes
Debt Instrument [Line Items]
Long-term debt, interest rate (in percent)						6.125%		6.125%
Long-term debt, principal amount						$ 850,000,000
5.75% senior notes, due 2025
Debt Instrument [Line Items]
Long-term debt, interest rate (in percent)						5.75%		5.75%
5.75% senior notes, due 2025 \| Senior Notes \| Subsequent Event
Debt Instrument [Line Items]
Long-term debt, interest rate (in percent)	5.75%
Redemption of debt	$ 675,000,000
Debt Instrument, redemption price (in percent)	100.607%
6.5% senior notes, due 2032
Debt Instrument [Line Items]
Long-term debt, interest rate (in percent)						6.50%		6.50%
6.5% senior notes, due 2032 \| Senior Notes
Debt Instrument [Line Items]
Long-term debt, interest rate (in percent)										6.50%
Long-term debt, principal amount										$ 750,000,000
6.75% senior notes, due 2025
Debt Instrument [Line Items]
Long-term debt, interest rate (in percent)						6.75%		6.75%
6.75% senior notes, due 2025 \| Senior Notes
Debt Instrument [Line Items]
Long-term debt, interest rate (in percent)			6.75%
Redemption of debt		750,000,000
6% Senior Notes, Due 2023 \| Senior Notes
Debt Instrument [Line Items]
Long-term debt, interest rate (in percent)					6.00%
Redemption of debt					$ 1,250,000,000
7.125% MGM China senior notes, due 2031
Debt Instrument [Line Items]
Long-term debt, interest rate (in percent)						7.125%		7.125%
7.125% MGM China senior notes, due 2031 \| Senior Notes
Debt Instrument [Line Items]
Long-term debt, interest rate (in percent)									7.125%
Long-term debt, principal amount									$ 500,000,000
5.375% Senior Notes, Due 2024 \| Senior Notes
Debt Instrument [Line Items]
Long-term debt, interest rate (in percent)			5.375%
Redemption of debt		$ 750,000,000
Leo Vegas Senior Notes \| Senior Notes
Debt Instrument [Line Items]
Redemption of debt				$ 36,000,000