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INCOME TAXES - Additional Information (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Income Tax Disclosure [Line Items]        
Net deferred tax asset $ 200,000      
Tax credit carry forward period (in years) 10 years      
Deferred tax assets, valuation allowance $ 1,778,446 $ 2,886,575 $ 2,884,262 $ 2,875,595
Unrecognized tax benefits, if recognized, would affect the effective tax rate 9,000 7,000    
Reversal of unrecognized tax benefit 0 $ 12,968 $ 13,388  
2024        
Income Tax Disclosure [Line Items]        
Tax credit carryforward expiration amount 780,000      
2025        
Income Tax Disclosure [Line Items]        
Tax credit carryforward expiration amount 674,000      
2026        
Income Tax Disclosure [Line Items]        
Tax credit carryforward expiration amount 134,000      
2027        
Income Tax Disclosure [Line Items]        
Tax credit carryforward expiration amount 200,000      
MGM Grand Paradise SA        
Income Tax Disclosure [Line Items]        
Complementary tax 1,100,000      
Increase (decrease) in valuation allowance 400,000      
Macau        
Income Tax Disclosure [Line Items]        
Valuation allowance on foreign tax credit 1,600,000      
Foreign tax credit carryover $ 1,800,000      
Special gaming tax rate (in percent) 35.00%      
Macau | MGM Grand Paradise SA        
Income Tax Disclosure [Line Items]        
Macau's complementary tax rate on distributions of gaming profits (in percent)   12.00%    
State        
Income Tax Disclosure [Line Items]        
Complementary tax $ 209,000      
Deferred tax assets, valuation allowance 10,000      
Deferred tax assets after federal tax effect and before valuation allowance 13,000      
Foreign        
Income Tax Disclosure [Line Items]        
Deferred tax assets, valuation allowance 180,155 $ 244,805    
Increase (decrease) in valuation allowance $ 50,000