v3.25.4
LONG-TERM DEBT - Additional Information (Details)
kr in Millions, ¥ in Billions, $ in Billions
1 Months Ended 12 Months Ended
Nov. 30, 2025
JPY (¥)
Oct. 31, 2025
JPY (¥)
Jun. 30, 2025
USD ($)
Oct. 31, 2024
USD ($)
May 31, 2024
USD ($)
Feb. 29, 2024
USD ($)
Mar. 31, 2023
USD ($)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2025
HKD ($)
Nov. 30, 2025
USD ($)
Nov. 30, 2025
JPY (¥)
Sep. 30, 2024
USD ($)
Jun. 30, 2024
USD ($)
Apr. 30, 2024
USD ($)
Aug. 31, 2023
USD ($)
Aug. 31, 2023
SEK (kr)
Debt Instrument [Line Items]                                    
Redemption of debt               $ 500,000,000 $ 2,175,000,000 $ 1,285,600,000                
Long-term debt, fair value               $ 6,300,000,000 6,300,000,000                  
6.125% senior notes, due 2029                                    
Debt Instrument [Line Items]                                    
Long-term debt, interest rate (in percent)               6.125%     6.125%     6.125%        
6.125% senior notes, due 2029 | Senior Notes                                    
Debt Instrument [Line Items]                                    
Long-term debt, principal amount                           $ 850,000,000        
Senior Notes 5.75% Due 2025 | Senior Notes                                    
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, principal amount                               $ 750,000,000    
Long-term debt, interest rate (in percent)                               6.50%    
Senior Notes 6.75% 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                      
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% MGM China senior notes, due 2025 | Senior Notes                                    
Debt Instrument [Line Items]                                    
Long-term debt, interest rate (in percent)     5.25%                              
Redemption of debt     $ 500,000,000                              
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, principal amount                             $ 500,000,000      
Long-term debt, interest rate (in percent)                             7.125%      
M G M China 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                          
LeoVegas Senior Notes                                    
Debt Instrument [Line Items]                                    
Long-term debt, aggregate principal amount of debt purchased                                 $ 36,000,000 kr 382
Revolving Credit Facility | Senior secured yen credit facility                                    
Debt Instrument [Line Items]                                    
Line of credit facility               $ 346,528,000 $ 0                  
Revolving Credit Facility | Senior secured yen credit facility | Line of Credit                                    
Debt Instrument [Line Items]                                    
Line of credit facility   ¥ 45.2                   $ 347,000,000 ¥ 54.2          
Option for higher credit facility amount | ¥   ¥ 67.8                                
Line of credit facility, maximum borrowing capacity, increase | ¥ ¥ 9.0                                  
Revolving Credit Facility | Senior secured yen credit facility | Line of Credit | Interest Rate Scenario One                                    
Debt Instrument [Line Items]                                    
Interest rate margin (in percent)   1.75%                                
Revolving Credit Facility | Minimum | Senior secured yen credit facility | Line of Credit | Interest Rate Scenario Two                                    
Debt Instrument [Line Items]                                    
Interest rate margin (in percent)   1.50%                                
Revolving Credit Facility | Minimum | HIBOR | MGM China first revolving credit facility                                    
Debt Instrument [Line Items]                                    
Interest rate margin (in percent)               1.625%                    
Revolving Credit Facility | Maximum | Senior secured yen credit facility | Line of Credit | Interest Rate Scenario Two                                    
Debt Instrument [Line Items]                                    
Interest rate margin (in percent)   2.25%                                
Revolving Credit Facility | Maximum | HIBOR | MGM China first revolving credit facility                                    
Debt Instrument [Line Items]                                    
Interest rate margin (in percent)               2.75%                    
Revolving Credit Facility | Senior Credit Facility                                    
Debt Instrument [Line Items]                                    
Line of credit facility           $ 2,300,000,000                        
Line of credit facility drawn               $ 0                    
Revolving Credit Facility | Senior Credit Facility | Secured Overnight Financing Rate (SOFR) Adjustment                                    
Debt Instrument [Line Items]                                    
Interest rate margin (in percent)           0.10%                        
Revolving Credit Facility | Senior Credit Facility | Minimum | Secured Overnight Financing Rate (SOFR)                                    
Debt Instrument [Line Items]                                    
Interest rate margin (in percent)           1.50%                        
Revolving Credit Facility | Senior Credit Facility | Maximum | Secured Overnight Financing Rate (SOFR)                                    
Debt Instrument [Line Items]                                    
Interest rate margin (in percent)           2.25%                        
Term Loan | MGM China first revolving credit facility                                    
Debt Instrument [Line Items]                                    
Line of credit facility               $ 3,000,000,000                    
Line of credit facility drawn                     $ 23.4              
Debt instrument, weighted average interest rate               6.46%     6.46%