ORGANIZATION (Details)	12 Months Ended
Dec. 31, 2025 resort segment
Organization Disclosure [Line Items]
Number of reportable segments \| segment	4
BetMGM North America Venture
Organization Disclosure [Line Items]
Ownership interest (in percent)	50.00%
MGM Osaka \| JAPAN
Organization Disclosure [Line Items]
Ownership interest (in percent)	50.00%
MGM China
Organization Disclosure [Line Items]
Controlling interest (in percent)	56.00%
Number of integrated casino, hotel and entertainment resorts \| resort	2

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