v3.25.2
LONG-TERM DEBT - Additional Information (Details)
$ in Billions
1 Months Ended 6 Months Ended
Jun. 30, 2025
USD ($)
May 31, 2024
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2025
HKD ($)
Dec. 31, 2024
USD ($)
Apr. 30, 2024
USD ($)
Debt Instrument [Line Items]              
Repayment of long-term debt     $ 500,000,000 $ 1,500,000,000      
Long-term debt, fair value $ 6,300,000,000   $ 6,300,000,000     $ 6,300,000,000  
6.5% senior notes, due 2032              
Debt Instrument [Line Items]              
Long-term debt, interest rate (in percent) 6.50%   6.50%   6.50%   6.50%
5.25% MGM China senior notes, due 2025              
Debt Instrument [Line Items]              
Long-term debt, interest rate (in percent) 5.25%   5.25%   5.25%    
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%    
Senior Notes | 6.5% senior notes, due 2032              
Debt Instrument [Line Items]              
Long-term debt, principal amount             $ 750,000,000
Senior Notes | 6.75% senior notes, due 2025              
Debt Instrument [Line Items]              
Long-term debt, interest rate (in percent)   6.75%          
Repayment of long-term debt   $ 750,000,000          
Senior Notes | 5.25% MGM China senior notes, due 2025              
Debt Instrument [Line Items]              
Long-term debt, interest rate (in percent) 5.25%   5.25%   5.25%    
Repayment of long-term debt $ 500,000,000            
Senior Notes | 7.125% MGM China senior notes, due 2031              
Debt Instrument [Line Items]              
Long-term debt, principal amount       $ 500,000,000      
Long-term debt, interest rate (in percent)       7.125%      
Senior Notes | 5.375% MGM China senior notes, due 2024              
Debt Instrument [Line Items]              
Long-term debt, interest rate (in percent)   5.375%          
Repayment of long-term debt   $ 750,000,000          
Revolving Credit Facility | Line of Credit | Senior secured credit facility              
Debt Instrument [Line Items]              
Line of credit facility 2,300,000,000   $ 2,300,000,000        
Line of credit facility drawn 0   0        
Revolving Credit Facility | Line of Credit | MGM China revolving credit facility              
Debt Instrument [Line Items]              
Line of credit facility $ 3,000,000,000   $ 3,000,000,000   $ 23.4    
Debt instrument, weighted average interest rate (in percent) 2.22%   2.22%   2.22%    
Revolving Credit Facility | Line of Credit | MGM China revolving credit facility | Minimum              
Debt Instrument [Line Items]              
Debt instrument, basis spread on variable rate (as a percent)     1.625%        
Revolving Credit Facility | Line of Credit | MGM China revolving credit facility | Maximum              
Debt Instrument [Line Items]              
Debt instrument, basis spread on variable rate (as a percent)     2.75%